api:dk11:delphi:gislayervectorsql.tgis_layervectorsqlabstract
Table of Contents
TGIS_LayerVectorSqlAbstract class
DK11 for Delphi | GisLayerVectorSql.TGIS_LayerVectorSqlAbstract | Classes | Constructors | Fields | Methods | Properties | Events
Class encapsulation.
Syntax
// Delphi type TGIS_LayerVectorSqlAbstract = class( TGIS_LayerVector ) end;
// C++ Builder class PASCALIMPLEMENTATION TGIS_LayerVectorSqlAbstract : public TGIS_LayerVector { };
Inheritance
Constructors
Inherited
Overrides
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| Create | public | Create a layer instance. (Overrides TGIS_LayerVector.Create) |
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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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| FConnectionPoolId | protected | Connection pool id. | |
| FCS | protected | Projection object. (Inherited from TGIS_Layer) |
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| FCurrTable | protected | Table name. | |
| 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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| FHideFromLegend | protected | True if layer should not be visible in a legend. (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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| FLastCmdId | protected | Last command id. | |
| 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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| FOnAfterDialectChange | protected | Event to be fired after dialect change. | |
| FOnBeforeDialectChange | protected | Event to be fired before dialect change. | |
| FOnBeforeUidReserve | protected | Event to be fired before uid reserve insert. | |
| 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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| 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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| FQuoteLeft | protected | Left quote definition. | |
| FQuoteRight | protected | Right quote definition. | |
| 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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| FSQLCommands | protected | List of SQL commands. | |
| FSQLDialectList | protected | SQL dialect (list of tokens) attached to the layer. | |
| FSQLParameters | protected | Connection parameters. | |
| FSQLParametersEx | protected | List of additional connection parameters. | |
| 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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| FSupportsAutoStyle | protected | Indicates whether the layer supports auto styling. (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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| 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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| FUseMasterTable | protected | If True, operations on the master table will be performed. | |
| 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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| FViewFeatures | protected | Feature view name if other then standard table. | |
| iCodePage | protected | CodePage stored for optimization purposes. | |
| iJoinCodePage | protected | JoinCodePage stored for optimization purposes. | |
| inDraw | protected | True if layer paint procedure not yet complete. (Inherited from TGIS_Layer) |
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| oGisDb | protected | Database supporting class handle. | |
| 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 | |
|---|---|---|---|
| addCommonCommands | protected | Add common SQL commands to SQL commands list. | |
| AddField | public | Adds a new field. (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 copy of shape and makes it editable. (Inherited from TGIS_LayerVector) |
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| AddShape(TGIS_Shape; Boolean) | public | Adds a copy of shape and makes it editable. (Inherited from TGIS_LayerVector) |
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| AddToMasterTable | public | Add layer entry to master table. | |
| Alive | public | Makes a layer non-dormant. (Inherited from TGIS_Layer) |
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| ApplyAutoStyle | public | (Inherited from TGIS_LayerVector) |
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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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| ApplyStyle | public | Apply a style to the layer. | |
| 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 | Binds layer to SQL query object to provided field access methods. (Inherited from TGIS_LayerVector) |
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| Build(String; TGIS_Extent; TGIS_ShapeType) | public | Builds a new layer - prepares storage. (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 a centroid for a scope. (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 if shape is visible based on current paramsCache setup. (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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| CloseActiveDatasets | public | Close all active datasets of a layer. | |
| CloseConnection | public | Close current connection and active queries. | |
| CreateMasterTable | public | Create master table. | |
| CreateProjectTable | public | Create a table with projects. | |
| CreateShape(TGIS_ShapeClass) | public | Creates a new shape and makes it editable. (Inherited from TGIS_LayerVector) |
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| CreateShape(TGIS_ShapeType) | public | Creates a new shape and makes it editable. (Inherited from TGIS_LayerVector) |
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| CreateShape(TGIS_ShapeType; TGIS_DimensionType) | public | Creates a new shape and makes it editable (Inherited from TGIS_LayerVector) |
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| CreateStyleTable | public | Create a table with layer styles. | |
| cursorClose | protected | Free cursor allocated by cursorOpen(). (Inherited from TGIS_LayerVector) |
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| cursorEof | protected | Is it the end of the shapes? (Inherited from TGIS_LayerVector) |
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| cursorEofInternal | protected | Has the end of shapes been reached? (Inherited from TGIS_LayerVector) |
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| cursorFindFirst | protected | Find first occurrence of an item which meets extent and query. (Inherited from TGIS_LayerVector) |
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| cursorFindNext | protected | Find next occurrence of item defined in cursorFindFirst. (Inherited from TGIS_LayerVector) |
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| cursorFinish | protected | Notify about finishing reading inside a cursor. (Inherited from TGIS_LayerVector) |
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| cursorFirst | protected | Move to the first shape in the cursor. (Inherited from TGIS_LayerVector) |
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| cursorFirstInternal | protected | Move to the first shape in the Layer. (Inherited from TGIS_LayerVector) |
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| cursorInterrupt | protected | Notify about interrupting reading inside a cursor. (Inherited from TGIS_LayerVector) |
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| cursorNext | protected | Move to the next shape in the cursor. (Inherited from TGIS_LayerVector) |
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| cursorNextInternal | protected | Move to next shape in Layer. (Inherited from TGIS_LayerVector) |
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| cursorOpen | protected | Allocate new cursor. (Inherited from TGIS_LayerVector) |
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| cursorShape | protected | Get current shape. (Inherited from TGIS_LayerVector) |
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| cursorShapeEx | protected | Get current shape. (Inherited from TGIS_LayerVector) |
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| cursorShapeInternal | protected | Get current shape. (Inherited from TGIS_LayerVector) |
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| cursorStateRestore | protected | Restore cursor state to previously stored value. (Inherited from TGIS_LayerVector) |
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| cursorStateSave | protected | Store cursor state. (Inherited from TGIS_LayerVector) |
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| Delete | public | Deletes a shape. (Inherited from TGIS_LayerVector) |
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| DeleteField | public | Deletes a field. (Inherited from TGIS_LayerVector) |
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| DeleteFromMasterTable | public | Delete record from master table. | |
| DeleteLayer | public | Delete a layer (tables, metadata) from database. | |
| Deselect | public | Clears selection of shape. (Inherited from TGIS_LayerVector) |
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| DeselectAll | public | Clears selection of all shapes. (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 | Draws layer charts. (Inherited from TGIS_LayerVector) |
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| DrawEx | public | Draws a layer within a defined extent. (Inherited from TGIS_LayerVector) |
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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 | Flashes queued shapes. (Inherited from TGIS_LayerVector) |
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| DrawLabel | public | Draws layer labels. (Inherited from TGIS_LayerVector) |
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| DrawScope | public | Draws only shapes that meet a scope criterion. (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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| ExecuteSQL | public | Execute custom SQL statement. | |
| ExportLayer(TGIS_LayerVector; TGIS_Extent; TGIS_ShapeType; String; Boolean) | public | Exports the layer. (Inherited from TGIS_LayerVector) |
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| ExportLayer(TGIS_LayerVector; TGIS_Extent; TGIS_ShapeType; String; TGIS_Shape; String; Boolean) | public | Exports layer. (Inherited from TGIS_LayerVector) |
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| ExportLayerEx | public | Exports layer. (Inherited from TGIS_LayerVector) |
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| ExportStructureToFLD | public | Exports fields structure to a fld file. (Inherited from TGIS_LayerVector) |
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| FieldInfo | public | Returns pointer to GIS_FieldInfo structure. (Inherited from TGIS_LayerVector) |
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| finalizeCommandList | protected | Finalize command list process. | |
| FinalizeDirectWrite | public | Finalizes direct writing into layer storage. (Overrides TGIS_LayerVector.FinalizeDirectWrite) |
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| FinalizeRead | public | Finalizes reading trying to close active queries. (Inherited from TGIS_LayerVector) |
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| FindField | public | Finds a field in the fields list. (Inherited from TGIS_LayerVector) |
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| FindFieldInternal | public | Finds a field in the fields list (for internal use). (Inherited from TGIS_LayerVector) |
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| FindFirst | public | Finds the first shape in layer. (Inherited from TGIS_LayerVector) |
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| FindFirst(TGIS_Extent) | public | Finds the first occurrence of an item which meets an extent. (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 | Finds the next occurrence of an item defined in FindFirst. (Inherited from TGIS_LayerVector) |
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| FlashShape | public | Flashes shape several times (Inherited from TGIS_LayerVector) |
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| ForEach | public | Fetches all shapes from the layer using callback function. (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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| GetAvailableProjects | public | Get available projects from database. | |
| GetAvailableStyles | public | Get available styles from database. | |
| 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. (Inherited from TGIS_LayerVector) |
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| getCmd | protected | Return a SQL command associated with a given identifier. | |
| getEdited | protected | Internally used by TGIS_Viewer. (Inherited from TGIS_LayerVector) |
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| GetField | public | Gets a field value for a shape determined by its unique identity. (Inherited from TGIS_LayerVector) |
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| GetFieldEx | public | Gets a field value for a shape determined by its unique identity. (Inherited from TGIS_LayerVector) |
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| getFieldInternal | protected | Get the stored field value for a shape specified by unique identifier. (Inherited from TGIS_LayerVector) |
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| getGeometryShapeType | protected | Convert shape type to geometry type. | |
| GetLastUid | public | Gets the Uid of the last shape. (Inherited from TGIS_LayerVector) |
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| GetNewUid | public | Gets the Uid for a new shape. (Inherited from TGIS_LayerVector) |
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| GetProject | public | Read project from database. | |
| GetSelectedCount | public | Returns the quantity of selected shapes. (Inherited from TGIS_LayerVector) |
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| GetShape(TGIS_Uid) | public | Gets a shape by its unique identifier on default cursor (0). (Inherited from TGIS_LayerVector) |
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| GetShape(TGIS_Uid; Integer) | public | Gets a shape by unique identifier. (Inherited from TGIS_LayerVector) |
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| getShapePos | protected | Get shape using bisection. (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 a unique field name. (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 a layer from an existing layer. (Inherited from TGIS_LayerVector) |
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| ImportLayer(TGIS_LayerVector; TGIS_Extent; TGIS_ShapeType; String; TGIS_Shape; String; Boolean) | public | Imports a layer from an existing layer. (Inherited from TGIS_LayerVector) |
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| ImportLayerEx | public | Imports a layer from an existing layer. (Inherited from TGIS_LayerVector) |
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| ImportStructure | public | Imports the field structure from another layer (Inherited from TGIS_LayerVector) |
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| initializeCommandList | protected | Initialize command list process. | |
| initializeConnect | protected | Initialize connect process. | |
| InitializeDirectWrite | public | Builds a new layer - prepares storage for direct writing. (Overrides TGIS_LayerVector.InitializeDirectWrite) |
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| InvalidateScope | public | Invalidates shapes in the scope. (Inherited from TGIS_LayerVector) |
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| InvalidateSelection | public | Invalidates all selected shapes (but only to redraw the selection, not the shapes themselves). (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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| 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 | Returns parameters filled with the renderer styling. (Inherited from TGIS_LayerVector) |
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| LegendInfo(Integer; TGIS_ParamsSectionVector) | public | Returns current parameters filled with the renderer styling. (Inherited from TGIS_LayerVector) |
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| legendRender | protected | Prepare colors and sizes for rendering the legend. (Inherited from TGIS_LayerVector) |
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| Locate(TGIS_Point; Double) | public | Locates a shape. (Inherited from TGIS_LayerVector) |
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| Locate(TGIS_Point; Double; Boolean) | public | Locates a shape. (Inherited from TGIS_LayerVector) |
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| LocateEx(TGIS_Point; Double; TGIS_Uid; Double; Integer; TGIS_Point) | public | Locates a shape (more precise). (Inherited from TGIS_LayerVector) |
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| LocateEx(TGIS_Point; Double; TGIS_Uid; Double; Integer; TGIS_Point; Boolean) | public | Locates a shape (more precise). (Inherited from TGIS_LayerVector) |
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| LocateEx(TGIS_Point; Double; TGIS_Uid; Double; Integer; TGIS_Point; Double; Boolean) | public | Locates a shape (more precise). (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 | Prepare colors and size for a shape using automatic renderer. (Inherited from TGIS_LayerVector) |
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| LockRenderInternal | public | This method is used only for internal use on layer reading. (Inherited from TGIS_LayerVector) |
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| lockThread | protected | Locks thread. (Inherited from TGIS_Layer) |
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| Loop | public | Prepares enumerator (also known as iterator or cursor) to iterate the layer. (Inherited from TGIS_LayerVector) |
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| Loop(TGIS_Extent) | public | Prepares enumerator (also known as iterator or cursor) to iterate the layer. (Inherited from TGIS_LayerVector) |
|
| Loop(TGIS_Extent; String) | public | Prepares enumerator (also known as iterator or cursor) to iterate the layer. (Inherited from TGIS_LayerVector) |
|
| Loop(TGIS_Extent; String; TGIS_Shape; String) | public | Prepares enumerator (also known as iterator or cursor) to iterate the layer. (Inherited from TGIS_LayerVector) |
|
| Loop(TGIS_Extent; String; TGIS_Shape; String; Boolean) | public | Prepares enumerator (also known as iterator or cursor) to iterate the layer. (Inherited from TGIS_LayerVector) |
|
| macroBeginBatchMode | protected | Macro for beginning batch mode. | |
| macroBuildRtree | protected | Macro for building RTree index. | |
| macroConnect | protected | Macro for connecting to the database. | |
| macroDisconnect | protected | Macro for disconnecting to the database. | |
| macroEndBatchMode | protected | Macro for ending batch mode. | |
| macroMasterUpdate | protected | Macro for updating master table | |
| macroMaxNameLength | protected | Gets maximum column name length. | |
| macroShapeUpdate | protected | Macro for managing shape update process. | |
| macroTableAlter | protected | Macro for redefining a database structure. | |
| macroTableDrop | protected | Macro for dropping table. | |
| macroUpdateEnd | protected | Macro for ending updates. | |
| macroUpdateStart | protected | Macro for starting updates. | |
| MergeLayer(TGIS_LayerVector; TGIS_Extent; TGIS_ShapeType; String; Boolean; Boolean) | public | Merges layer from an existing layer. (Inherited from TGIS_LayerVector) |
|
| MergeLayer(TGIS_LayerVector; TGIS_Extent; TGIS_ShapeType; String; TGIS_Shape; String; Boolean; Boolean) | public | Merges layer with an existing layer. (Inherited from TGIS_LayerVector) |
|
| MergeLayerEx | public | Merges layer with an existing layer. (Inherited from TGIS_LayerVector) |
|
| MergeStructure(TGIS_LayerVector; Boolean) | public | Merges the field structure from another layer. (Inherited from TGIS_LayerVector) |
|
| MergeStructure(TGIS_LayerVector; Boolean; Boolean) | public | Merges the field structure from another layer. (Inherited from TGIS_LayerVector) |
|
| Move | public | Moves a layer up or down in the viewer zorder list. (Inherited from TGIS_Layer) |
|
| MoveEx | public | Moves a layer up or down in the viewer zorder list (only visible layers). (Inherited from TGIS_Layer) |
|
| MustCalculateStatistics | public | (Inherited from TGIS_LayerVector) |
|
| MustReproject | public | Checks if the layer must be reprojected. (Inherited from TGIS_Layer) |
|
| MustSave | public | (Inherited from TGIS_LayerVector) |
|
| nextCandidate | protected | Provides next shape from the candidate list. (Inherited from TGIS_LayerVector) |
|
| Open | public | Opens the layer. (Inherited from TGIS_Layer) |
|
| OpenConnection | public | Reopen a connection. | |
| optimizeParamsCache(Integer) | protected | Move section specified by _idx to the top of the cached list. (Inherited from TGIS_Layer) |
|
| optimizeParamsCache(Integer; Boolean) | protected | Move section specified by _idx to the top of the cached list. (Inherited from TGIS_Layer) |
|
| Paint | public | Draws the layer or fires PaintLayer event (if defined). (Inherited from TGIS_Layer) |
|
| ParamsAsDrawn | public | Gets a shape's styling parameters that are used during drawing in the viewer, and fills the _params parameter. (Inherited from TGIS_LayerVector) |
|
| passwordCallBack | protected | Process tokens in a SQLParameters property. | |
| Prepare | public | Opens the layer. (Inherited from TGIS_Layer) |
|
| prepareCandidates | protected | Prepare list of scope candidates for SQL Layers. (Inherited from TGIS_LayerVector) |
|
| prepareCommandList | protected | Prepare command list. | |
| PrepareExportFieldNames(Integer) | public | Prepares field names to export. (Inherited from TGIS_LayerVector) |
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| PrepareExportFieldNames(Integer; Boolean) | public | Prepares field names to export. (Inherited from TGIS_LayerVector) |
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| PrepareExportFieldNames(Integer; Boolean; Boolean) | public | Prepares field names to export. (Inherited from TGIS_LayerVector) |
|
| PrepareExportFieldNames(Integer; Boolean; Boolean; Boolean) | public | Prepares field names to export. (Inherited from TGIS_LayerVector) |
|
| prepareParametersExList | protected | Prepare additional parameters list. | |
| PrepareParams | public | For internal use only. (Inherited from TGIS_Layer) |
|
| 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) |
|
| prepareRender | protected | Prepare colors and size for a shape using automatic renderer. (Inherited from TGIS_LayerVector) |
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| PreRecognize | public | Checks if the layer can read the file. (Inherited from TGIS_Layer) |
|
| Project | public | Applies a projection on the single point. (Inherited from TGIS_Layer) |
|
| Project3D | public | Applies a projection on the single point in 3D. (Inherited from TGIS_Layer) |
|
| Project3D_Ref | public | Applies a projection on the single point in 3D. (Inherited from TGIS_Layer) |
|
| ProjectExtent | public | Applies a projection on the extent. (Inherited from TGIS_Layer) |
|
| Project_Ref | public | Applies a projection on the single point. (Inherited from TGIS_Layer) |
|
| queueFlash | protected | Used by TGIS_Shape to add itself to the flash queue. (Inherited from TGIS_LayerVector) |
|
| RaiseBusyEvent | public | Fires Busy event of the layer. (Inherited from TGIS_Layer) |
|
| 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) |
|
| ReadConfig | public | Reads the layer configuration files. (Inherited from TGIS_Layer) |
|
| ReadConfigParam | public | Reads the layer configuration parameters. (Inherited from TGIS_Layer) |
|
| ReadFieldDefinition | public | Parses the field definition file. (Inherited from TGIS_LayerVector) |
|
| ReadFieldRules | public | Parses the field rules file. (Inherited from TGIS_LayerVector) |
|
| ReadMasterTable | public | Read layer entry from master table. | |
| ReadStyle | public | Read a style. | |
| RecalcExtent | public | Recalculates extent. (Inherited from TGIS_LayerVector) |
|
| RecalcProjectedExtent | public | Recalculates a projected extent. (Inherited from TGIS_Layer) |
|
| releaseFlash | protected | Used by TGIS_Shape to remove itself from the flash queue. (Inherited from TGIS_LayerVector) |
|
| removeCandidate | protected | Remove shape from the candidate list. (Inherited from TGIS_LayerVector) |
|
| RenameField | public | Renames a field. (Inherited from TGIS_LayerVector) |
|
| ReOpen | public | Reopens the layer. (Inherited from TGIS_Layer) |
|
| ReorderShapeUids | public | Internal method to rebuild shape's uid values and ensure ascending order. (Inherited from TGIS_LayerVector) |
|
| RereadConfig | public | Rereads the layer configuration files. (Inherited from TGIS_Layer) |
|
| ResetDataset | public | Reset the layer dataset to ensure the current database context upon next drawing (e.g to notify changes when a record was deleted manually in the table). | |
| resetMustReproject | protected | Reset MustReporoject state. (Inherited from TGIS_Layer) |
|
| Revert | public | Reverts a shape to its original state. (Inherited from TGIS_LayerVector) |
|
| RevertAll | public | (Inherited from TGIS_LayerVector) |
|
| RevertShapes | public | Reverts all shapes to their original state. (Inherited from TGIS_LayerVector) |
|
| RootLayer | public | Returns the absolute parent layer. (Inherited from TGIS_Layer) |
|
| safeName | protected | Make safe column name. | |
| safeParam | protected | Make safe parameter. | |
| SaveAll | public | Saves layer and destroys mirrored items. (Inherited from TGIS_Layer) |
|
| SaveData | public | Saves layer and destroys mirrored items. (Inherited from TGIS_LayerVector) |
|
| SaveFieldRules | public | Save field rules file. (Inherited from TGIS_LayerVector) |
|
| SetCSByEPSG | public | Sets up Coordinate System to a coordinate system provided by a EPSG code. (Inherited from TGIS_Layer) |
|
| 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. (Inherited from TGIS_LayerVector) |
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| setUp2 | protected | (Inherited from TGIS_LayerVector) |
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| setUp3 | protected | Makes additional layer setup. (Overrides TGIS_LayerVector.setUp3) |
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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 | Do after lockRender. (Inherited from TGIS_LayerVector) |
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| UnlockRenderInternal | public | This method is used only for internal use on layer reading. (Inherited from TGIS_LayerVector) |
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| unlockThread | protected | Unlocks thread. (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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| UpdateMasterTable | public | Update a layer entry in master table. | |
| ViewerReParent | public | Sets viewer for the layer and its sublayers. (Inherited from TGIS_Layer) |
|
| WriteConfig | public | Writes layer configuration files. (Inherited from TGIS_Layer) |
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| WriteProject | public | Write or update a project to database. | |
| WriteShapeDirect | public | Writes a shape directly into storage. (Overrides TGIS_LayerVector.WriteShapeDirect) |
|
| WriteStyle | public | Write or update a style to database. | |
| WriteStyleEx | public | Write or update a style to database. | |
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) |
|
| Addition | public | Additional value. (Inherited from TGIS_Layer) |
|
| Age | public | Age of the layer (since its creation). (Inherited from TGIS_Layer) |
|
| 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) |
|
| BlockRTree | public | If true, then Rtree for the layer cannot be enabled and UseRtree is ignored. (Inherited from TGIS_LayerVector) |
|
| CachedPaint | public | False if layer must be painted directly (bypassing cache). (Inherited from TGIS_Layer) |
|
| Caption | public | Caption of layer; if not filed directly then will be filed with Name when adding to the Viewer. (Inherited from TGIS_Layer) |
|
| 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) |
|
| Comments | public | Additional user comments. (Inherited from TGIS_Layer) |
|
| ConfigFile | public | Configuration file handle. (Inherited from TGIS_Layer) |
|
| ConfigName | public | Configuration file name. (Inherited from TGIS_Layer) |
|
| ConnectionPoolId | public | Connection pool id. | |
| CS | public | Coordinate System that is assigned to the layer. (Inherited from TGIS_Layer) |
|
| CustomData | public | List of custom, user-defined data. (Inherited from TGIS_Layer) |
|
| DefaultDimension | public | Default shape dimension for the layer. (Inherited from TGIS_LayerVector) |
|
| DefaultShapeType | public | Default shape type for the layer. (Inherited from TGIS_LayerVector) |
|
| DirectMode | public | True if the layer is direct-mode (bypassing cache). (Inherited from TGIS_Layer) |
|
| DormantMode | public | Dormant mode for the layer. (Inherited from TGIS_Layer) |
|
| Driver | public | The layer's driver name. (Inherited from TGIS_Layer) |
|
| DynamicAggregator | public | Aggregation processor is executed upon the drawing process. (Inherited from TGIS_LayerVector) |
|
| Extent | public | Extent of the layer. (Inherited from TGIS_Layer) |
|
| Extent3D | public | Three-dimensional extent of the layer. (Inherited from TGIS_Layer) |
|
| Fields | public | List of database field definitions. (Inherited from TGIS_LayerVector) |
|
| FieldsVirtual | public | List of virtual fields. (Inherited from TGIS_LayerVector) |
|
| FileCopyrights | public | Copyright information about the layer. (Inherited from TGIS_Layer) |
|
| FileInfo | public | Additional textual information about the layer such as compression, number of pixels, copyright, etc. (Inherited from TGIS_Layer) |
|
| HideFromLegend | public | False if the layer should not be visible in legend. (Inherited from TGIS_Layer) |
|
| IgnoreShapeParams | public | If True, then only layer level params will be used. (Inherited from TGIS_LayerVector) |
|
| InMemoryRTree | public | True if RTree file will be created in-memory. (Inherited from TGIS_LayerVector) |
|
| InPaint | public | True if the layer upon paint process. (Inherited from TGIS_Layer) |
|
| IsExportable | public | True if the layer is exportable. (Inherited from TGIS_Layer) |
|
| IsLocked | public | True if the layer is in locked state. (Inherited from TGIS_Layer) |
|
| IsOpened | public | True if the layer is opened and is ready for operations. (Inherited from TGIS_Layer) |
|
| IsPersistent | public | True if the layer is persistent. (Inherited from TGIS_Layer) |
|
| IsReadOnly | public | True if the layer is read-only. (Inherited from TGIS_Layer) |
|
| IsTopmost | public | True if the layer can be interpreted as the topmost (trackable) layer. (Inherited from TGIS_Layer) |
|
| Items | public | A list of all ghost items. (Inherited from TGIS_LayerVector) |
|
| JoinADO | public | ADO Query to be joined. (Inherited from TGIS_LayerVector) |
|
| JoinCodePage | public | Code page for JoinADO/JoinDB. (Inherited from TGIS_LayerVector) |
|
| JoinDB | public | DB Query to be joined. (Inherited from TGIS_LayerVector) |
|
| JoinForeign | public | Field from Query to be joined. (Inherited from TGIS_LayerVector) |
|
| JoinJDBC | public | JDBC ResultSet of Query to be joined. (Inherited from TGIS_LayerVector) |
|
| JoinJDBCQuery | public | JDBC Query to be joined. (Inherited from TGIS_LayerVector) |
|
| JoinPrimary | public | Field from feature table to be joined. (Inherited from TGIS_LayerVector) |
|
| LabelingMode | public | Labeling mode metadata. (Inherited from TGIS_LayerVector) |
|
| Layer3D | public | Mode of 3D operations (Inherited from TGIS_Layer) |
|
| MasterTable | public | Name of the master table. | |
| MaxTileSize | public | Maximum allowed tile size for the layer. (Inherited from TGIS_Layer) |
|
| MultipassRendering | public | Forces multipass rendering. (Inherited from TGIS_LayerVector) |
|
| MultiUserMode | public | Type of multiuser mode. (Inherited from TGIS_Layer) |
|
| Name | public | Name of layer; if not filled directly, then will be filled with Path when added to the viewer. (Inherited from TGIS_Layer) |
|
| Params | public | Returns parameters (colors, fills, etc.) object. (Inherited from TGIS_LayerVector) |
|
| ParamsList | public | List of all parameter sections attached to the current layer. (Inherited from TGIS_Layer) |
|
| ParentLayer | public | Parent layer of a sub layer. (Inherited from TGIS_Layer) |
|
| Path | public | Path to file holding the layer's data. (Inherited from TGIS_Layer) |
|
| PathFLD | public | Path to field definitions ini file. (Inherited from TGIS_LayerVector) |
|
| PathFLDX | public | Path to field rules file. (Inherited from TGIS_LayerVector) |
|
| PathRTree | public | Path to RTree index. (Inherited from TGIS_LayerVector) |
|
| PathWithDriver | public | Path to file with the layer's data extended with driver name. (Inherited from TGIS_Layer) |
|
| ProjectedExtent | public | Extent of the layer in projected units. (Inherited from TGIS_Layer) |
|
| Renderer | public | Handle to a renderer used for drawing shapes. (Inherited from TGIS_Layer) |
|
| RTreeFile | public | Rtree based index. (Inherited from TGIS_LayerVector) |
|
| Scope | public | Scope zone. (Inherited from TGIS_LayerVector) |
|
| ScopeExtent | public | Scope extent. (Inherited from TGIS_LayerVector) |
|
| SelectedList | public | List of uids of the selected shapes. (Inherited from TGIS_LayerVector) |
|
| SQLCommands | public | SQL Commands used for database operations. | |
| SQLDialectList | public | Dialect list in a form "token=replacement". | |
| SQLParameter | public | Connection parameters. | |
| SQLParametersEx | public | List of additional connection parameters. | |
| 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 dimensions supported by a layer. (Inherited from TGIS_LayerVector) |
|
| SupportedShapes | public | Set of shapes supported by a layer. (Inherited from TGIS_LayerVector) |
|
| SupportedShapesAll | public | Similar to SupportedShapesSet, but this lists also includes shape types added temporarily by the aggregator. (Inherited from TGIS_LayerVector) |
|
| SupportsAutoStyle | public | Indicates whether the layer supports auto styling. (Inherited from TGIS_Layer) |
|
| SymbolingMode | public | Symboling mode metadata. (Inherited from TGIS_LayerVector) |
|
| Table | public | Name of the table (general). | |
| 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) |
|
| 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) |
|
| UseMasterTable | public | If True, operations on the master table will be performed. | |
| UserObject | public | UserObject can be used to associate with the layer a user-defined object. (Inherited from TGIS_Layer) |
|
| UseRTree | public | Sets the use of an index based on RTree structure. (Inherited from TGIS_LayerVector) |
|
| UseShapeStyleField | public | If true than params style attribute field was defined. (Inherited from TGIS_LayerVector) |
|
| Viewer | public | Reference to a viewer object. (Inherited from TGIS_Layer) |
|
| ViewFeatures | public | Name of the features view. | |
| 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) |
|
Events
Inherited
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| AfterDialectChangeEvent | published | Will be fired after SQLDialect change. | |
| BeforeDialectChangeEvent | published | Will be fired before every SQLDialect change. | |
| BeforeUidReserveEvent | published | Event to be fired before uid reserve insert. | |
| SQLExecuteEvent | published | Will be fired upon any SQL execution to trace SQL statements. | |
Remarks
Upon setup a layer due to missing information about extent in OpenGIS tables structure, the layer extent must be calculated based on geometry. This may be a time consuming operation for large tables. To speed up opening a layer, user can define custom extent in config file, e.g. :
[TatukGIS Layer] Extent.XMax=5025325.86261364 Extent.XMin=3733204.05738636 Extent.YMax=6122716.46404904 Extent.YMin=5396533.06595096
References
2024/07/05 20:52