api:dk11:delphi:gislayerlas.tgis_layerlas
Table of Contents
TGIS_LayerLAS class
DK for Delphi | GisLayerLAS.TGIS_LayerLAS | Classes | Constructors | Fields | Methods | Properties
Layer that can read LAS file.
Syntax
// Delphi type TGIS_LayerLAS = class( TGIS_LayerVector ) end;
// C++ Builder class PASCALIMPLEMENTATION TGIS_LayerLAS : public TGIS_LayerVector { };
Inheritance
Constructors
Inherited
Overrides
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| Create | public | Create layer. (Overrides TGIS_LayerVector.Create) |
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| Create(String) | public | Create a layer ans set Path property. (Inherited from TGIS_Layer) |
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Fields
Inherited
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| bIgnoreShapeParams | protected | Internal status of IgnoreShapeParams property. (Inherited from TGIS_LayerVector) |
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| cursorState | protected | Whole cursor status. (Inherited from TGIS_LayerVector) |
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| cursorStateStore | protected | Whole cursor status. (Inherited from TGIS_LayerVector) |
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| FActive | protected | Is layer active? (Inherited from TGIS_Layer) |
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| FAddition | protected | Addition value. (Inherited from TGIS_Layer) |
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| FAge | protected | Age of the layer. (Inherited from TGIS_Layer) |
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| FBasemap | protected | True if the layer is interpreted as basemap. (Inherited from TGIS_Layer) |
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| FBasemapDraw | protected | If True, the layer at the moment is drawn inside a basemap thread. (Inherited from TGIS_Layer) |
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| FBlockRTree | protected | True if rtree can not be enabled. (Inherited from TGIS_LayerVector) |
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| FCachedPaint | protected | False if layer must be painted directly (bypassing cache). (Inherited from TGIS_Layer) |
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| FCaption | protected | Layer caption. (Inherited from TGIS_Layer) |
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| FCodePage | protected | Code Page in which text has been stored. (Inherited from TGIS_Layer) |
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| FCodePageForced | protected | Code Page forced by project file or property setting. (Inherited from TGIS_Layer) |
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| FCollapsed | protected | Is layer collapsed? (Inherited from TGIS_Layer) |
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| FComments | protected | Additional comments. (Inherited from TGIS_Layer) |
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| FConfigFile | protected | Configuration file handle. (Inherited from TGIS_Layer) |
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| FConfigFile2 | protected | Configuration file handle. (Inherited from TGIS_Layer) |
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| FConfigName | protected | Configuration file name. (Inherited from TGIS_Layer) |
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| FCS | protected | Projection object. (Inherited from TGIS_Layer) |
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| FCustomData | protected | List of custom data. (Inherited from TGIS_Layer) |
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| FDormantMode | protected | Dormant mode for the layer. (Inherited from TGIS_Layer) |
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| FDriver | protected | Layer driver. (Inherited from TGIS_Layer) |
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| FExtent | protected | Layer extent. (Inherited from TGIS_Layer) |
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| FExtent3D | protected | Layer extent 3D. (Inherited from TGIS_Layer) |
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| FFileCopyright | protected | Additional textual information about layer copyright. (Inherited from TGIS_Layer) |
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| FFileInfo | protected | Additional textual information about the layer such as compression, number of pixels, copyright etc. (Inherited from TGIS_Layer) |
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| FGUID | protected | Unique layer identifier (Inherited from TGIS_Layer) |
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| FHideFromLegend | protected | True if layer should not be visible in a legend. (Inherited from TGIS_Layer) |
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| FIcon | protected | Layer icon to be presented in a lagend. (Inherited from TGIS_Layer) |
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| findSmartSizeFactor | protected | SmartSize scaling factor (to scale between projected/unprojected size. (Inherited from TGIS_LayerVector) |
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| FInMemoryRTree | protected | True if rtree file will be created in-memory. (Inherited from TGIS_LayerVector) |
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| FInPaint | protected | True if the layer upon paint process. (Inherited from TGIS_Layer) |
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| FIsLocked | protected | True if layer is in locked state Lock. (Inherited from TGIS_Layer) |
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| FIsModified | protected | True if structure (field, geometry etc) was modified. (Inherited from TGIS_Layer) |
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| FIsOpened | protected | True if layer was opened. (Inherited from TGIS_Layer) |
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| FIsPrepared | protected | True if layer was opened. (Inherited from TGIS_Layer) |
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| FIsReadOnly | protected | Read only flag. (Inherited from TGIS_Layer) |
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| FMaxTileSize | protected | Maximum allowed tile size for the layer. (Inherited from TGIS_Layer) |
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| FMultiUserMode | protected | Multiuser mode. (Inherited from TGIS_Layer) |
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| FName | protected | Layer name. (Inherited from TGIS_Layer) |
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| FOnBusy | protected | Busy event. (Inherited from TGIS_Layer) |
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| FOnCursorAfterFetch | protected | OnCursorAfterFetch event. (Inherited from TGIS_LayerVector) |
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| FOnCursorBeforeFetch | protected | OnCursorBeforeFetch event. (Inherited from TGIS_LayerVector) |
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| FOnCursorClose | protected | OnCursorClose event. (Inherited from TGIS_LayerVector) |
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| FOnCursorInterrupt | protected | OnCursorInterrupt event. (Inherited from TGIS_LayerVector) |
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| FOnCursorOpen | protected | CursorOpen event. (Inherited from TGIS_LayerVector) |
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| FOnCursorShapeFetch | protected | OnCursorShapeFetch event. (Inherited from TGIS_LayerVector) |
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| FOnLabelPos | protected | ShapeLabelPos events. (Inherited from TGIS_LayerVector) |
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| FOnPaintLayer | protected | PaintLayer event. (Inherited from TGIS_Layer) |
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| FOnPaintShape | protected | PaintShape event. (Inherited from TGIS_LayerVector) |
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| FOnPaintShapeChart | protected | PaintShapeChart event. (Inherited from TGIS_LayerVector) |
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| FOnPaintShapeLabel | protected | PaintShapeLabel event. (Inherited from TGIS_LayerVector) |
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| FOnPassword | protected | Will be fired upon opening layer to resolve any username/password (Inherited from TGIS_Layer) |
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| FOnRead | protected | Will be fired upon each file Read request. (Inherited from TGIS_Layer) |
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| FOnShapeFieldChange | protected | OnShapeFieldChange event. (Inherited from TGIS_LayerVector) |
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| FOnShapeGeometryChange | protected | OnShapeGeometryChange event. (Inherited from TGIS_LayerVector) |
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| FOnWrite | protected | Will be fired upon each file Write request. (Inherited from TGIS_Layer) |
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| forceCachedMode | protected | Set tor True to force cached (bitmap) type of drawing. (Inherited from TGIS_Layer) |
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| FOverlappedExtentMargin | protected | Overlapped extent margin. (Inherited from TGIS_Layer) |
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| FParamsList | protected | List of parameters set (sections). (Inherited from TGIS_Layer) |
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| FParentLayer | protected | Parent layer. (Inherited from TGIS_Layer) |
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| FPath | protected | Layer path. (Inherited from TGIS_Layer) |
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| FPixelsPerInch | protected | Pixel density. (Inherited from TGIS_LayerVector) |
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| FProjectedExtent | protected | Precalculated projected extent. (Inherited from TGIS_Layer) |
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| FProjectedExtentBase | protected | Precalculated projected extent - Base extent (unprojected). (Inherited from TGIS_Layer) |
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| FProjectedExtentEPSG | protected | Precalculated projected extent - Layer CS Context. (Inherited from TGIS_Layer) |
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| FProjectedExtentRotationAngle | protected | Precalculated projected extent - Rotation context. (Inherited from TGIS_Layer) |
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| FProjectedExtentRotationPoint | protected | Precalculated projected extent - Rotation context. (Inherited from TGIS_Layer) |
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| FProjectedExtentViewerEPSG | protected | Precalculated projected extent - Viewer CS Context. (Inherited from TGIS_Layer) |
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| FRenderer | protected | Handle to a renderer used for drawing shapes. (Inherited from TGIS_Layer) |
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| FRTreeFile | protected | Rtree based index. (Inherited from TGIS_LayerVector) |
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| FSelectedList | protected | List of uids of selected shapes. (Inherited from TGIS_LayerVector) |
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| FStatistics | protected | Statistics engine. (Inherited from TGIS_Layer) |
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| FStream | protected | Reference to a potential layer underlying stream. (Inherited from TGIS_Layer) |
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| FSubLayers | protected | Sub layers list. (Inherited from TGIS_Layer) |
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| FSubType | protected | Type of sublayer. (Inherited from TGIS_Layer) |
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| FSupportedDimensions | protected | Set of dimensions supported by a layer. (Inherited from TGIS_LayerVector) |
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| FSupportedShapes | protected | Set of shapes supported by a layer. (Inherited from TGIS_LayerVector) |
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| FSupportsAsync | protected | Indicates whether the layer implements asynchronous operations. (Inherited from TGIS_Layer) |
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| FSupportsAutoStyle | protected | Indicates whether the layer supports auto styling. (Inherited from TGIS_Layer) |
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| FSupportsTiledPaint | protected | Indicates whether the layer supports tiled paint. (Inherited from TGIS_Layer) |
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| FTag | protected | Tag value. (Inherited from TGIS_Layer) |
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| FTagInternal | protected | Internal Tag value. (Inherited from TGIS_Layer) |
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| FTagPointer | protected | Pointer Tag value (Inherited from TGIS_Layer) |
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| FTileable | protected | If True, the layer at the moment is printed or exported using tiles. (Inherited from TGIS_Layer) |
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| FTiledDrawMode | protected | If not None then the layer at the moment is drawn inside a basemap thread. (Inherited from TGIS_Layer) |
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| FTransform | protected | Custom transformation. (Inherited from TGIS_Layer) |
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| FTransparency | protected | Transparency value. (Inherited from TGIS_Layer) |
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| FUnSupportedOperations | protected | Set of operations not supported by a layer. (Inherited from TGIS_Layer) |
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| FUseConfig | protected | Is config file active? (Inherited from TGIS_Layer) |
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| FUserObject | protected | User object. (Inherited from TGIS_Layer) |
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| FUseRTree | protected | True if rtree is in use. (Inherited from TGIS_LayerVector) |
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| FViewer | protected | Reference to viewer object. (Inherited from TGIS_Layer) |
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| inDraw | protected | True if layer paint procedure not yet complete. (Inherited from TGIS_Layer) |
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| oldMarkerPoint | protected | Old marker point screen coordinates (to filter drawing points). (Inherited from TGIS_LayerVector) |
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| paramsCache | protected | List of prepared parameters. (Inherited from TGIS_Layer) |
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| paramsCacheUpdated | protected | If True, parameters are ready to render (Inherited from TGIS_Layer) |
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| View3D | public | 3D Representation properties. (Inherited from TGIS_Layer) |
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Methods
Inherited
Overrides
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| AddField | public | Adds a new attribute field to the layer's schema. (Inherited from TGIS_LayerVector) |
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| AddFieldInternal(String; TGIS_FieldType; Integer; Integer) | public | Adds new field; for internal use. (Inherited from TGIS_LayerVector) |
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| AddFieldInternal(String; TGIS_FieldType; Integer; Integer; Boolean; Integer) | public | Adds new field; for internal use. (Inherited from TGIS_LayerVector) |
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| AddShape(TGIS_Shape) | public | Adds a shape to the layer by creating an editable copy of the geometry (attributes not copied, geometry only). (Inherited from TGIS_LayerVector) |
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| AddShape(TGIS_Shape; Boolean) | public | Adds a shape to the layer by creating an editable copy, optionally copying attribute fields and data from the source shape. (Inherited from TGIS_LayerVector) |
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| Alive | public | Makes a layer non-dormant. (Inherited from TGIS_Layer) |
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| ApplyAutoStyle | public | Applies auto-styling to the layer. (Inherited from TGIS_Layer) |
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| ApplyAutoStyle(Boolean) | public | Applies auto-styling to the layer. (Inherited from TGIS_Layer) |
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| applyConfigOptions | protected | (Inherited from TGIS_LayerVector) |
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| applyConfigProjection(TGIS_ConfigAbstract) | protected | Read config projection parameters. (Inherited from TGIS_Layer) |
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| applyConfigProjection(TGIS_ConfigAbstract; TGIS_Layer) | protected | Read config projection parameters. (Inherited from TGIS_Layer) |
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| ApplyCuttingPolygon | public | Sets a cutting polygon for a layer. (Inherited from TGIS_Layer) |
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| bindField | protected | Obtain a bind number for a given field name. (Inherited from TGIS_LayerVector) |
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| bindFieldInternal | protected | Obtain a bind number for a given field name. (Inherited from TGIS_LayerVector) |
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| BindSqlQueryInternal | public | Bind layer to SQL query object for attribute field value access. (Inherited from TGIS_LayerVector) |
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| Build(String; TGIS_Extent; TGIS_ShapeType) | public | Creates and initializes layer storage (file or database) with specified geometry type and extent. (Inherited from TGIS_LayerVector) |
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| Build(String; TGIS_Extent; TGIS_ShapeType; TGIS_DimensionType) | public | Builds s new layer - prepare storage. (Inherited from TGIS_LayerVector) |
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| CentroidScope | public | Calculates the centroid point for the first shape matching a SQL WHERE clause query, or returns fallback point if no match found. (Inherited from TGIS_LayerVector) |
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| ChangeHash | public | Changes the hash for the purpose of verifying layer's modifications. (Inherited from TGIS_Layer) |
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| checkParamsCache | protected | Check whether shape passes visibility criteria (layer params cache, query filter, hidden state). (Inherited from TGIS_LayerVector) |
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| ClearModified | public | Sets IsModified flag to false for a layer and its sublayers. (Inherited from TGIS_Layer) |
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| CreateShape(TGIS_ShapeClass) | public | Creates new shape instance of extended type (e.g., custom class) in editable state, ready for geometry input and addition to layer. (Inherited from TGIS_LayerVector) |
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| CreateShape(TGIS_ShapeType) | public | Creates a new empty shape with specified geometry type using the layer's default coordinate dimensionality, ready for vertex input or direct addition. (Inherited from TGIS_LayerVector) |
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| CreateShape(TGIS_ShapeType; TGIS_DimensionType) | public | Creates a new empty shape with specified geometry type and coordinate dimensionality, ready for geometry input and addition to this layer. (Inherited from TGIS_LayerVector) |
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| cursorClose | protected | Release cursor and free associated resources. (Overrides TGIS_LayerVector.cursorClose) |
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| cursorEof | protected | Test whether cursor at end-of-file (all matching shapes exhausted). (Overrides TGIS_LayerVector.cursorEof) |
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| cursorEofInternal | protected | Internal variant of cursorEof. (Inherited from TGIS_LayerVector) |
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| cursorFindFirst | protected | Find first shape matching extent, query, and spatial predicates. (Inherited from TGIS_LayerVector) |
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| cursorFindNext | protected | Find next shape matching cursorFindFirst() criteria. (Inherited from TGIS_LayerVector) |
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| cursorFinish | protected | Complete cursor iteration and release resources. (Inherited from TGIS_LayerVector) |
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| cursorFirst | protected | Initialize cursor to first shape matching extent, query, and spatial predicates. (Overrides TGIS_LayerVector.cursorFirst) |
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| cursorFirstInternal | protected | Internal variant of cursorFirst. (Inherited from TGIS_LayerVector) |
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| cursorInterrupt | protected | Interrupt cursor iteration prematurely. (Inherited from TGIS_LayerVector) |
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| cursorNext | protected | Advance cursor to next shape matching filter criteria. (Overrides TGIS_LayerVector.cursorNext) |
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| cursorNextInternal | protected | Internal variant of cursorNext. (Inherited from TGIS_LayerVector) |
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| cursorOpen | protected | Allocate and initialize new iteration cursor. (Overrides TGIS_LayerVector.cursorOpen) |
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| cursorShape | protected | Retrieve current shape from cursor position. (Overrides TGIS_LayerVector.cursorShape) |
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| cursorShapeEx | protected | Retrieve current shape with extended/alternative access. (Inherited from TGIS_LayerVector) |
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| cursorShapeInternal | protected | Internal variant of cursorShape. (Inherited from TGIS_LayerVector) |
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| cursorStateRestore | protected | Restore cursor to previously saved state. (Inherited from TGIS_LayerVector) |
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| cursorStateSave | protected | Save cursor position for nested iteration. (Inherited from TGIS_LayerVector) |
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| Delete | public | Marks a shape as deleted, removing it from queries and drawing while preserving deletion information for undo/revert operations. (Inherited from TGIS_LayerVector) |
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| DeleteField | public | Removes a field from layer schema. (Inherited from TGIS_LayerVector) |
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| Deselect | public | Deselects a single shape, removing it from the selection set (sets IsSelected property to false). (Inherited from TGIS_LayerVector) |
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| DeselectAll | public | Clears selection of all shapes in the layer, removing all shapes from the selection set (sets IsSelected=false for all). (Inherited from TGIS_LayerVector) |
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| doApplyAutoStyle | protected | (Inherited from TGIS_LayerVector) |
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| Dormant | public | Makes a layer dormant. (Inherited from TGIS_Layer) |
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| DormantGain | public | Calculates the approximate gain (in Megabytes) which can be achieved by releasing memory by calling Dormant method. (Inherited from TGIS_Layer) |
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| Draw | public | Draws a layer. (Inherited from TGIS_Layer) |
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| DrawChart | public | Render all layer charts directly without full shape redraw. (Inherited from TGIS_LayerVector) |
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| DrawEx | public | Draws a layer within a defined extent. (Overrides TGIS_LayerVector.DrawEx) |
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| drawExtent | protected | Calculates the drawing area /clipping area of device/. (Inherited from TGIS_Layer) |
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| drawExtentEx | protected | Calculates the drawing area /clipping area of device/. (Inherited from TGIS_Layer) |
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| DrawFlash | public | Render all queued flashing shapes. (Inherited from TGIS_LayerVector) |
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| DrawLabel | public | Render layer's labels directly without full shape redraw. (Inherited from TGIS_LayerVector) |
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| DrawScope | public | Render shapes matching SQL WHERE clause using specified rendering style. (Inherited from TGIS_LayerVector) |
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| DrawSelected | public | Draws only the selected item(s) on layer. (Inherited from TGIS_Layer) |
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| DrawSelectedEx | public | (Inherited from TGIS_LayerVector) |
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| DrawSpecial | public | Custom shape rendering via specialized renderer object. (Inherited from TGIS_LayerVector) |
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| ExportLayer(TGIS_LayerVector; TGIS_Extent; TGIS_ShapeType; String; Boolean) | public | Copy layer subset to destination layer. (Inherited from TGIS_LayerVector) |
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| ExportLayer(TGIS_LayerVector; TGIS_Extent; TGIS_ShapeType; String; TGIS_Shape; String; Boolean) | public | Export with topological relationship filtering. (Inherited from TGIS_LayerVector) |
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| ExportLayerEx | public | Virtual export handler for subclass override. (Inherited from TGIS_LayerVector) |
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| ExportStructureToFLD | public | Write layer's field schema to FLD (field definition) file format. (Inherited from TGIS_LayerVector) |
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| FieldInfo | public | Returns pointer to field schema definition (TGIS_FieldInfo record). (Inherited from TGIS_LayerVector) |
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| FinalizeDirectWrite | public | Completes direct streaming write session and finalizes storage (files/tables). (Inherited from TGIS_LayerVector) |
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| FinalizeRead | public | Finalizes reading and closes any active query/cursor states for the layer. (Inherited from TGIS_LayerVector) |
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| FindField | public | Find field index by name in layer's schema. (Inherited from TGIS_LayerVector) |
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| FindFieldInternal | public | Internal field lookup using saved file format name. (Inherited from TGIS_LayerVector) |
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| FindFirst | public | Initiates iteration by finding first shape in layer with optional RTree spatial acceleration. (Inherited from TGIS_LayerVector) |
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| FindFirst(TGIS_Extent) | public | Finds the first shape in layer intersecting the specified spatial extent, using spatial index (R-Tree) for fast O(log n) lookup if available. (Inherited from TGIS_LayerVector) |
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| FindFirst(TGIS_Extent; String) | public | Finds the first occurrence of an item which meets an extent and query. (Inherited from TGIS_LayerVector) |
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| FindFirst(TGIS_Extent; String; TGIS_Shape; String) | public | Finds the first occurrence of an item which meets an extent, query, and additional parameters. (Inherited from TGIS_LayerVector) |
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| FindFirst(TGIS_Extent; String; TGIS_Shape; String; Boolean) | public | Finds the first occurrence of an item which meets an extent, query, and additional parameters. (Inherited from TGIS_LayerVector) |
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| FindNext | public | Retrieves the next shape from a prior FindFirst query iterator. (Inherited from TGIS_LayerVector) |
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| FlashShape | public | Flash shape with customizable timing. (Inherited from TGIS_LayerVector) |
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| ForEach | public | Iterates shapes matching complex criteria (spatial, attribute, topology) and invokes callback for each shape with rendering parameters prepared. (Inherited from TGIS_LayerVector) |
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| ForEachSubLayer | public | Returns in callback event the layer and all sublayers belonging to it. (Inherited from TGIS_Layer) |
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| GetAvailableLayers | public | Gets a list of layers available in storage. (Inherited from TGIS_LayerVector) |
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| getBindedField | protected | Get field value for a shape given by unique identity. (Inherited from TGIS_LayerVector) |
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| getBindedFieldInternal | protected | Get field value for a shape given by unique identity. (Overrides TGIS_LayerVector.getBindedFieldInternal) |
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| getEdited | protected | Internally used by TGIS_Viewer. (Inherited from TGIS_LayerVector) |
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| GetField | public | Retrieves an attribute field value for a shape by its unique identifier, with NULL values converted to field default values. (Inherited from TGIS_LayerVector) |
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| GetFieldEx | public | Retrieves an attribute field value for a shape by unique identifier, preserving SQL NULL values unchanged (vs GetField which converts NULLs to defaults). (Inherited from TGIS_LayerVector) |
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| getFieldInternal | protected | Get the stored field value for a shape specified by unique identifier. (Overrides TGIS_LayerVector.getFieldInternal) |
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| GetLastUid | public | Gets the unique identifier (UID) of the last shape in the layer (highest numbered shape, not necessarily last added). (Overrides TGIS_LayerVector.GetLastUid) |
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| GetNewUid | public | Allocates the next available unique identifier (UID) for a new shape, automatically incrementing from the last used UID. (Inherited from TGIS_LayerVector) |
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| GetSelectedCount | public | Returns the count of shapes currently selected in this layer's selection list. (Inherited from TGIS_LayerVector) |
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| GetShape(TGIS_Uid) | public | Retrieves a shape by its unique identifier (UID) using the default cursor (0). (Inherited from TGIS_LayerVector) |
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| GetShape(TGIS_Uid; Integer) | public | Gets a shape by unique identifier. (Overrides TGIS_LayerVector.GetShape) |
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| getShapePos | protected | Locate shape in sorted collection using binary search. (Inherited from TGIS_LayerVector) |
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| getStatistics | protected | Parse label string (to expand fields etc.). (Inherited from TGIS_LayerVector) |
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| GetSubLayer | public | Retrieve the layer identified by a name. (Inherited from TGIS_Layer) |
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| GetUniqueFieldName | public | Suggests unique field name avoiding schema conflicts. (Inherited from TGIS_LayerVector) |
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| HourglassShake | public | Notifies of busy state using an hourglass. (Inherited from TGIS_Layer) |
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| ImportLayer(TGIS_LayerVector; TGIS_Extent; TGIS_ShapeType; String; Boolean) | public | Imports shapes from an existing vector layer into this layer, optionally filtering by spatial extent and SQL WHERE clause. (Inherited from TGIS_LayerVector) |
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| ImportLayer(TGIS_LayerVector; TGIS_Extent; TGIS_ShapeType; String; TGIS_Shape; String; Boolean) | public | Import shapes with spatial and topological relationship filtering. (Inherited from TGIS_LayerVector) |
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| ImportLayerEx | public | Import shapes with extended spatial and topological filtering (virtual). (Inherited from TGIS_LayerVector) |
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| ImportStructure | public | Copies the complete attribute field schema from another layer, replacing this layer's existing field definitions. (Inherited from TGIS_LayerVector) |
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| InitializeDirectWrite | public | Prepares layer storage for direct streaming writes (high-volume bulk operations). (Inherited from TGIS_LayerVector) |
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| InvalidateScope | public | Marks shapes matching a WHERE clause for viewport redraw with specified rendering style. (Inherited from TGIS_LayerVector) |
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| InvalidateSelection | public | Marks all selected shapes for viewport redraw (selection highlighting only), without affecting shape geometry or style rendering. (Inherited from TGIS_LayerVector) |
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| IsGrid | public | Checks if the layer type is grid. (Inherited from TGIS_Layer) |
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| isInScope | protected | Internally used by TGIS_Viewer. (Inherited from TGIS_LayerVector) |
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| IsPixel | public | Checks if the layer type is pixel. (Inherited from TGIS_Layer) |
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| isSectionInVisibilityRange | protected | Checks whether the section is visible by testing layer properties: Level with MinLevel/MaxLevel, ScaleAsFloat with MinScale/MaxScale, and Zoom with MinZoom/MaxZoom. (Inherited from TGIS_Layer) |
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| isShapeVisible | protected | Calculate a visibility of a given shape. (Inherited from TGIS_LayerVector) |
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| isSublayer | protected | Checks if the layer is a sublayer. (Inherited from TGIS_Layer) |
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| IsSupported | public | Checks if the operation is supported by the layer. (Inherited from TGIS_Layer) |
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| IsTopology | public | Checks if the layer type is topology. (Inherited from TGIS_Layer) |
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| IsVector | public | (Inherited from TGIS_LayerVector) |
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| IsVector3D | public | (Inherited from TGIS_LayerVector) |
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| IsVisible | public | Checks if the layer is visible in a defined extent and current params. (Inherited from TGIS_Layer) |
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| LegendInfo(Integer; Integer; TGIS_ParamsSectionVector) | public | Retrieves rendering parameters for a specific legend zone (class), populated from current layer styling. (Inherited from TGIS_LayerVector) |
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| LegendInfo(Integer; TGIS_ParamsSectionVector) | public | Deprecated: Retrieves styling parameters for a legend zone. (Inherited from TGIS_LayerVector) |
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| legendRender | protected | Prepare legend entry styling colors and sizes for specified symbol rule section. (Inherited from TGIS_LayerVector) |
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| Locate(TGIS_Point; Double) | public | Locates the shape closest to a reference point within a specified precision distance. (Inherited from TGIS_LayerVector) |
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| Locate(TGIS_Point; Double; Boolean) | public | Locate shape with visibility filter. (Inherited from TGIS_LayerVector) |
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| LocateEx(TGIS_Point; Double; TGIS_Uid; Double; Integer; TGIS_Point) | public | Locate nearest shape with detailed output: actual distance to shape, part index of closest element, and projected point on shape geometry. (Inherited from TGIS_LayerVector) |
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| LocateEx(TGIS_Point; Double; TGIS_Uid; Double; Integer; TGIS_Point; Boolean) | public | Locate nearest shape with detailed output and visibility filtering. (Inherited from TGIS_LayerVector) |
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| LocateEx(TGIS_Point; Double; TGIS_Uid; Double; Integer; TGIS_Point; Double; Boolean) | public | Locate nearest shape with full output metrics including shape-type preference distance. (Inherited from TGIS_LayerVector) |
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| Lock | public | Locks layer in burst-mode operation. (Inherited from TGIS_Layer) |
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| lockRender | protected | Lock shape rendering context and prepare colors/sizes for rendering. (Inherited from TGIS_LayerVector) |
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| LockRenderInternal | public | Lock layer rendering for bulk load operations. (Inherited from TGIS_LayerVector) |
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| lockThread | protected | Locks thread. (Inherited from TGIS_Layer) |
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| Loop | public | Creates an enumerator (iterator/cursor) for traversing all shapes in the layer using Delphi for..in syntax or manual iteration. (Inherited from TGIS_LayerVector) |
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| Loop(TGIS_Extent) | public | Creates an enumerator for shapes intersecting the specified spatial extent using RTree-accelerated spatial filtering. (Inherited from TGIS_LayerVector) |
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| Loop(TGIS_Extent; String) | public | Creates an enumerator for shapes matching spatial extent and attribute query criteria using RTree + SQL-like filtering. (Inherited from TGIS_LayerVector) |
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| Loop(TGIS_Extent; String; TGIS_Shape; String) | public | Creates an enumerator for shapes matching spatial extent, attribute query, and topological relationship criteria (DE-9IM). (Inherited from TGIS_LayerVector) |
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| Loop(TGIS_Extent; String; TGIS_Shape; String; Boolean) | public | Creates an enumerator for shapes matching spatial extent, attribute query, topological criteria, with optional soft-deleted shape inclusion control. (Inherited from TGIS_LayerVector) |
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| MarkAsProxy | public | Mark layer to be used as a proxy layer. (Inherited from TGIS_Layer) |
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| MergeLayer(TGIS_LayerVector; TGIS_Extent; TGIS_ShapeType; String; Boolean; Boolean) | public | Consolidate shapes from another layer into this layer, preserving attribute data and enforcing field schema compatibility. (Inherited from TGIS_LayerVector) |
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| MergeLayer(TGIS_LayerVector; TGIS_Extent; TGIS_ShapeType; String; TGIS_Shape; String; Boolean; Boolean) | public | Merge shapes with attribute data and topological relationship filtering. (Inherited from TGIS_LayerVector) |
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| MergeLayerEx | public | Virtual merge handler for subclass override. (Inherited from TGIS_LayerVector) |
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| MergeStructure(TGIS_LayerVector; Boolean) | public | Merges field schema from another layer into this layer's existing schema (additive). (Inherited from TGIS_LayerVector) |
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| MergeStructure(TGIS_LayerVector; Boolean; Boolean) | public | Merges field schema from another layer with control over exported field naming (export name vs. (Inherited from TGIS_LayerVector) |
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| Move | public | Moves a layer up or down in the viewer zorder list. (Inherited from TGIS_Layer) |
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| MoveEx | public | Moves a layer up or down in the viewer zorder list (only visible layers). (Inherited from TGIS_Layer) |
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| MustCalculateStatistics | public | (Inherited from TGIS_LayerVector) |
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| MustReproject | public | Checks if the layer must be reprojected. (Inherited from TGIS_Layer) |
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| MustSave | public | (Inherited from TGIS_LayerVector) |
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| nextCandidate | protected | Retrieve next candidate shape from list. (Inherited from TGIS_LayerVector) |
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| Open | public | Opens the layer. (Inherited from TGIS_Layer) |
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| OpenAsync | public | Opens the layer asynchronously. (Inherited from TGIS_Layer) |
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| optimizeParamsCache(Integer) | protected | Move section specified by _idx to the top of the cached list. (Inherited from TGIS_Layer) |
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| optimizeParamsCache(Integer; Boolean) | protected | Move section specified by _idx to the top of the cached list. (Inherited from TGIS_Layer) |
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| Paint | public | Draws the layer or fires PaintLayer event (if defined). (Inherited from TGIS_Layer) |
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| ParamsAsDrawn | public | Retrieves the actual rendering parameters (style, color, width, fill) applied to a specific shape during drawing. (Inherited from TGIS_LayerVector) |
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| Prepare | public | Opens the layer. (Inherited from TGIS_Layer) |
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| prepareCandidates | protected | Build candidate list for spatial query. (Inherited from TGIS_LayerVector) |
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| PrepareExportFieldNames(Integer) | public | Prepares field names for export to target format. (Inherited from TGIS_LayerVector) |
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| PrepareExportFieldNames(Integer; Boolean) | public | Prepares field names for export with control over which fields to process (new vs saved). (Inherited from TGIS_LayerVector) |
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| PrepareExportFieldNames(Integer; Boolean; Boolean) | public | Prepares field names for export with optional case conversion (UPPERCASE or mixed case preservation). (Inherited from TGIS_LayerVector) |
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| PrepareExportFieldNames(Integer; Boolean; Boolean; Boolean) | public | Prepares field names for export with case conversion and SQL strictness (alphanumeric + underscore only). (Inherited from TGIS_LayerVector) |
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| PrepareForExport | public | Prepares layer for export. (Inherited from TGIS_Layer) |
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| PrepareParams | public | For internal use only. (Inherited from TGIS_Layer) |
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| prepareParamsCache | protected | Prepare cached section list meeting the _style name. (Inherited from TGIS_Layer) |
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| prepareParamsCache(String) | protected | Prepare cached section list meeting the _style name. (Inherited from TGIS_Layer) |
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| prepareRender | protected | Compute rendering colors and sizes for a shape using automatic renderer rules. (Inherited from TGIS_LayerVector) |
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| PreRecognize | public | Checks if the layer can read the file. (Overrides TGIS_Layer.PreRecognize) |
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| Project | public | Applies a projection on the single point. (Inherited from TGIS_Layer) |
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| Project3D | public | Applies a projection on the single point in 3D. (Inherited from TGIS_Layer) |
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| Project3D_Ref | public | Applies a projection on the single point in 3D. (Inherited from TGIS_Layer) |
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| ProjectExtent | public | Applies a projection on the extent. (Inherited from TGIS_Layer) |
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| Project_Ref | public | Applies a projection on the single point. (Inherited from TGIS_Layer) |
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| queueFlash | protected | Add shape to flash (highlight) queue. (Inherited from TGIS_LayerVector) |
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| RaiseBusyEvent | public | Fires Busy event of the layer. (Inherited from TGIS_Layer) |
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| RaiseBusyPrepare | public | Fires BusyPrepare method of the assigned viewer. (Inherited from TGIS_Layer) |
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| RaiseBusyRelease | public | Fires BusyRelease method of the assigned viewer. (Inherited from TGIS_Layer) |
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| RaiseBusyShake | public | Fires BusyShake method of the assigned viewer. (Inherited from TGIS_Layer) |
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| ReadConfig | public | Reads the layer configuration files. (Inherited from TGIS_Layer) |
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| ReadConfigParam | public | Reads the layer configuration parameters. (Inherited from TGIS_Layer) |
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| ReadFieldDefinition | public | Parse layer's field definition file (.fld) and restore field schema. (Inherited from TGIS_LayerVector) |
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| ReadFieldRules | public | Load field validation/constraint rules from FLD rules file. (Inherited from TGIS_LayerVector) |
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| RecalcExtent | public | Recalculates the layer's bounding extent (MinX, MinY, MaxX, MaxY) by scanning all visible shapes. (Inherited from TGIS_LayerVector) |
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| RecalcProjectedExtent | public | Recalculates a projected extent. (Inherited from TGIS_Layer) |
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| releaseFlash | protected | Remove shape from flash (highlight) queue. (Inherited from TGIS_LayerVector) |
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| removeCandidate | protected | Remove shape from candidate list. (Inherited from TGIS_LayerVector) |
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| RenameField | public | Renames an existing field and optionally resizes it. (Inherited from TGIS_LayerVector) |
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| ReOpen | public | Reopens the layer. (Inherited from TGIS_Layer) |
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| ReorderShapeUids | public | Rebuild shape UIDs to ensure ascending, consecutive order after Items list reordering. (Inherited from TGIS_LayerVector) |
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| RereadConfig | public | Rereads the layer configuration files. (Inherited from TGIS_Layer) |
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| resetMustReproject | protected | Reset MustReporoject state. (Inherited from TGIS_Layer) |
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| Revert | public | Reverts a single shape to its last saved/original state, undoing all edits. (Inherited from TGIS_LayerVector) |
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| RevertAll | public | (Inherited from TGIS_LayerVector) |
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| RevertShapes | public | Reverts all shapes in the layer to their last saved/original state, discarding all pending edits (geometry and attributes). (Overrides TGIS_LayerVector.RevertShapes) |
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| RootLayer | public | Returns the absolute parent layer. (Inherited from TGIS_Layer) |
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| SaveAll | public | Saves layer and destroys mirrored items. (Inherited from TGIS_Layer) |
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| SaveData | public | Saves layer and destroys mirrored items. (Inherited from TGIS_LayerVector) |
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| SaveFieldRules | public | Persist field validation/constraint rules to FLD rules file. (Inherited from TGIS_LayerVector) |
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| SetCSByEPSG | public | Sets up Coordinate System to a coordinate system provided by a EPSG code. (Inherited from TGIS_Layer) |
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| SetCSByWKT | public | Sets up Coordinate System to a coordinate system provided by a WKT string (GEOGCS or PROJCS). (Inherited from TGIS_Layer) |
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| SetCSByWKTFile | public | Sets up Coordinate System to a coordinate system provided by a file which contains a WKT string (GEOGCS or PROJCS). (Inherited from TGIS_Layer) |
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| setUp | protected | Makes a general layer setup first step. (Overrides TGIS_LayerVector.setUp) |
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| setUp2 | protected | (Inherited from TGIS_LayerVector) |
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| setUp3 | protected | (Inherited from TGIS_LayerVector) |
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| setUpAsync | protected | Makes a general layer setup first step asynchronously. (Inherited from TGIS_Layer) |
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| storeConfigOptions | protected | (Inherited from TGIS_LayerVector) |
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| transformExtent | protected | Custom transformation of the extent. (Inherited from TGIS_Layer) |
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| Unlock | public | Unlocks layer from burst-mode operation. (Inherited from TGIS_Layer) |
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| unlockRender | protected | Release rendering lock acquired by lockRender(). (Inherited from TGIS_LayerVector) |
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| UnlockRenderInternal | public | Unlock layer rendering and resume cache updates. (Inherited from TGIS_LayerVector) |
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| unlockThread | protected | Unlocks thread. (Inherited from TGIS_Layer) |
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| UnprepareForExport | public | Finalizes export initialized with PrepareForExport. (Inherited from TGIS_Layer) |
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| Unproject | public | Applies reverse projection (recovers from the projection) on the single point. (Inherited from TGIS_Layer) |
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| Unproject3D | public | Applies reverse projection (recovers from the projection) on the singlepoint in 3D. (Inherited from TGIS_Layer) |
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| Unproject3D_Ref | public | Applies reverse projection (recovers from the projection) on the single point in 3D. (Inherited from TGIS_Layer) |
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| UnprojectExtent | public | Applies reverse projection (recovers from the projection) on the extent. (Inherited from TGIS_Layer) |
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| Unproject_Ref | public | Applies reverse projection (recover from projection) on the single point. (Inherited from TGIS_Layer) |
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| ViewerReParent | public | Sets viewer for the layer and its sublayers. (Inherited from TGIS_Layer) |
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| WriteConfig | public | Writes layer configuration files. (Inherited from TGIS_Layer) |
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| WriteShapeDirect | public | Writes a shape directly to persistent storage (file/database) without buffering through layer collection. (Inherited from TGIS_LayerVector) |
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Properties
Inherited
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| Active | public | Checks if the layer is active? Active means layer is visible and an object can be localized on the layer. (Inherited from TGIS_Layer) |
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| Addition | public | Additional value. (Inherited from TGIS_Layer) |
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| Age | public | Age of the layer (since its creation). (Inherited from TGIS_Layer) |
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| Basemap | public | True if the layer must be interpreted as basemap (for background painting). (Inherited from TGIS_Layer) |
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| BasemapDraw | public | If True, the layer at the moment is drawn inside a basemap thread. (Inherited from TGIS_Layer) |
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| BlockRTree | public | If true, prevents R-Tree spatial indexing for this layer (overrides UseRTree setting). (Inherited from TGIS_LayerVector) |
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| CachedPaint | public | False if layer must be painted directly (bypassing cache). (Inherited from TGIS_Layer) |
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| Caption | public | Caption of layer; if not filed directly then will be filed with Name when adding to the Viewer. (Inherited from TGIS_Layer) |
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| CodePage | public | Code Page in which text has been stored. (Inherited from TGIS_Layer) |
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| Collapsed | public | Checks if the layer is collapsed? Collapsed means only the layer's title will be visible inside the legend. (Inherited from TGIS_Layer) |
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| Comments | public | Additional user comments. (Inherited from TGIS_Layer) |
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| ConfigFile | public | Configuration file handle. (Inherited from TGIS_Layer) |
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| ConfigName | public | Configuration file name. (Inherited from TGIS_Layer) |
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| CS | public | Coordinate System that is assigned to the layer. (Inherited from TGIS_Layer) |
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| CustomData | public | List of custom, user-defined data. (Inherited from TGIS_Layer) |
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| DefaultDimension | public | Default coordinate dimensionality for CreateShape() calls. (Inherited from TGIS_LayerVector) |
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| DefaultShapeType | public | Default geometry type for CreateShape(type) calls. (Inherited from TGIS_LayerVector) |
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| DirectMode | public | True if the layer is direct-mode (bypassing cache). (Inherited from TGIS_Layer) |
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| DormantMode | public | Dormant mode for the layer. (Inherited from TGIS_Layer) |
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| Driver | public | The layer's driver name. (Inherited from TGIS_Layer) |
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| DynamicAggregator | public | Dynamic aggregation processor for shape clustering/binning during rendering. (Inherited from TGIS_LayerVector) |
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| Extent | public | Extent of the layer. (Inherited from TGIS_Layer) |
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| Extent3D | public | Three-dimensional extent of the layer. (Inherited from TGIS_Layer) |
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| Fields | public | List of attribute table field definitions (names, types, widths). (Inherited from TGIS_LayerVector) |
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| FieldsVirtual | public | Collection of computed/synthetic field definitions (read-only, generated by framework). (Inherited from TGIS_LayerVector) |
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| FileCopyrights | public | Copyright information about the layer. (Inherited from TGIS_Layer) |
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| FileInfo | public | Additional textual information about the layer such as compression, number of pixels, copyright, etc. (Inherited from TGIS_Layer) |
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| GUID | public | Unique layer identifier (Inherited from TGIS_Layer) |
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| HideFromLegend | public | False if the layer should not be visible in legend. (Inherited from TGIS_Layer) |
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| Icon | public | Layer icon to be presented in a legend. (Inherited from TGIS_Layer) |
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| IgnoreShapeParams | public | Force uniform layer-level rendering style, ignoring per-shape customization. (Inherited from TGIS_LayerVector) |
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| InMemoryRTree | public | Controls whether the R-Tree spatial index is created in-memory (vs. (Inherited from TGIS_LayerVector) |
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| InPaint | public | True if the layer upon paint process. (Inherited from TGIS_Layer) |
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| IsExportable | public | True if the layer is exportable. (Inherited from TGIS_Layer) |
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| IsLocked | public | True if the layer is in locked state. (Inherited from TGIS_Layer) |
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| IsOpened | public | True if the layer is opened and is ready for operations. (Inherited from TGIS_Layer) |
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| IsPersistent | public | True if the layer is persistent. (Inherited from TGIS_Layer) |
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| IsReadOnly | public | True if the layer is read-only. (Inherited from TGIS_Layer) |
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| IsTopmost | public | True if the layer can be interpreted as the topmost (trackable) layer. (Inherited from TGIS_Layer) |
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| Items | public | In-memory collection of edited/ghost shapes pending persistence to layer storage. (Inherited from TGIS_LayerVector) |
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| JoinADO | public | ADO Query to be joined. (Inherited from TGIS_LayerVector) |
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| JoinCodePage | public | Code page (character encoding) for JoinADO/JoinDB external table. (Inherited from TGIS_LayerVector) |
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| JoinDB | public | DB Query to be joined. (Inherited from TGIS_LayerVector) |
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| JoinForeign | public | Foreign key field from external join table (JoinDB, JoinADO, etc.). (Inherited from TGIS_LayerVector) |
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| JoinJDBC | public | JDBC ResultSet of Query to be joined. (Inherited from TGIS_LayerVector) |
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| JoinJDBCQuery | public | JDBC Query to be joined. (Inherited from TGIS_LayerVector) |
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| JoinPrimary | public | Primary key field from layer's attribute table. (Inherited from TGIS_LayerVector) |
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| LabelingMode | public | Labeling mode metadata. (Inherited from TGIS_LayerVector) |
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| Layer3D | public | Mode of 3D operations (Inherited from TGIS_Layer) |
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| MaxTileSize | public | Maximum allowed tile size for the layer. (Inherited from TGIS_Layer) |
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| MultipassRendering | public | Forces multi-pass rendering (slower but higher-quality) instead of single-pass optimization. (Inherited from TGIS_LayerVector) |
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| MultiUserMode | public | Type of multiuser mode. (Inherited from TGIS_Layer) |
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| Name | public | Name of layer; if not filled directly, then will be filled with Path when added to the viewer. (Inherited from TGIS_Layer) |
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| OverlappedExtentMargin | public | Overlapped extent margin. (Inherited from TGIS_Layer) |
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| Params | public | Returns parameters (colors, fills, etc.) object. (Inherited from TGIS_LayerVector) |
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| ParamsList | public | List of all parameter sections attached to the current layer. (Inherited from TGIS_Layer) |
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| ParentLayer | public | Parent layer of a sub layer. (Inherited from TGIS_Layer) |
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| Path | public | Path to file holding the layer's data. (Inherited from TGIS_Layer) |
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| PathFLD | public | File path to field definitions file (FLD format, .fld extension). (Inherited from TGIS_LayerVector) |
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| PathFLDX | public | File path to field rules/constraints file (.flx extension). (Inherited from TGIS_LayerVector) |
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| PathRTree | public | File path to R-Tree spatial index (.rtx file). (Inherited from TGIS_LayerVector) |
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| PathWithDriver | public | Path to file with the layer's data extended with driver name. (Inherited from TGIS_Layer) |
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| ProjectedExtent | public | Extent of the layer in projected units. (Inherited from TGIS_Layer) |
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| Renderer | public | Handle to a renderer used for drawing shapes. (Inherited from TGIS_Layer) |
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| RTreeFile | public | Rtree based index. (Inherited from TGIS_LayerVector) |
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| Scope | public | SQL WHERE clause filtering which shapes are visible/active (scope). (Inherited from TGIS_LayerVector) |
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| ScopeExtent | public | Spatial extent filter. (Inherited from TGIS_LayerVector) |
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| SelectedList | public | Read-only list of unique identifiers (UIDs) for all currently selected shapes. (Inherited from TGIS_LayerVector) |
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| SelectionGisColor | public | Selection highlight color override. (Inherited from TGIS_LayerVector) |
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| SelectionOutlineOnly | public | Render selected polygons with outline only (no fill). (Inherited from TGIS_LayerVector) |
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| SelectionWidth | public | Selection outline thickness (>0 in twips, <0 in pixels absolute). (Inherited from TGIS_LayerVector) |
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| Statistics | public | Layer statistics engine (Inherited from TGIS_Layer) |
|
| Stream | public | Reference to a potential layer underlying the stream. (Inherited from TGIS_Layer) |
|
| SubLayers | public | List of sublayers belonging to the layer. (Inherited from TGIS_Layer) |
|
| SubType | public | Type of sublayer. (Inherited from TGIS_Layer) |
|
| SupportedDimensions | public | Set of supported coordinate dimensionalities (2D, 3D, 4D). (Inherited from TGIS_LayerVector) |
|
| SupportedShapes | public | Set of geometry types supported by this layer (Point, LineString, Polygon, or multi-variants). (Inherited from TGIS_LayerVector) |
|
| SupportedShapesAll | public | Extended set including SupportedShapes plus temporarily-added types from active DynamicAggregator. (Inherited from TGIS_LayerVector) |
|
| SupportsAsync | public | Indicates whether the layer implements asynchronous operations. (Inherited from TGIS_Layer) |
|
| SupportsAutoStyle | public | Indicates whether the layer supports auto styling. (Inherited from TGIS_Layer) |
|
| SupportsTiledPaint | public | Indicates whether the layer supports tiled paint. (Inherited from TGIS_Layer) |
|
| SymbolingMode | public | Symboling mode metadata. (Inherited from TGIS_LayerVector) |
|
| Tag | public | Tag has no predefined meaning. (Inherited from TGIS_Layer) |
|
| TagInternal | public | TagInternal has no predefined meaning. (Inherited from TGIS_Layer) |
|
| TagPointer | public | TagPointer has no predefined meaning. (Inherited from TGIS_Layer) |
|
| Tileable | public | If True, the layer at the moment is printed or exported using tiles. (Inherited from TGIS_Layer) |
|
| TiledDrawMode | public | If True, the layer at the moment is drawn by tiler. (Inherited from TGIS_Layer) |
|
| Transform | public | Custom transformation. (Inherited from TGIS_Layer) |
|
| Transparency | public | Transparency value for the layer (0..100). (Inherited from TGIS_Layer) |
|
| UnSupportedOperations | public | Set of operations not supported by the layer. (Inherited from TGIS_Layer) |
|
| UseConfig | public | True if config file is active. (Inherited from TGIS_Layer) |
|
| UseLayerSelectionStyle | public | Enable layer-specific selection styling. (Inherited from TGIS_LayerVector) |
|
| UserObject | public | UserObject can be used to associate with the layer a user-defined object. (Inherited from TGIS_Layer) |
|
| UseRTree | public | Enables/disables R-Tree spatial indexing for O(log n) shape queries. (Inherited from TGIS_LayerVector) |
|
| UseShapeStyleField | public | Enables shape rendering style driven by attribute field value. (Inherited from TGIS_LayerVector) |
|
| Viewer | public | Reference to a viewer object. (Inherited from TGIS_Layer) |
|
| ZOrder | public | Layer's position relative to other layers. (Inherited from TGIS_Layer) |
|
| ZOrderEx | public | Layer position relative to other visible layers. (Inherited from TGIS_Layer) |
|
Remarks
SmartSize property can be used to control density of displayed points.
Note :
- SmartSize property can be used to control the density of displayed points.
- To open a layer as a point cloud for faster 3D viewing(in 2D shows only a box), add ?pc text to a file path e.g. C:\model.las?pc
- To open a layer as a filtered point cloud(using voxel grid) for faster 2D and 3D viewing, add ?pcf text to a file path e.g. C:\model.las?pcf
- To open .laz files, layer requires an external LASzip library file
- Use TGIS_Utils.SetLibrariesSearchPath method to define the search path for the library in Java
2026/06/12 22:37