api:dk11:delphi:gislayervector.tgis_layervector_methods
TGIS_LayerVector methods
DK for Delphi | GisLayerVector.TGIS_LayerVector | Constructors | Fields | Methods | Properties | Events
Methods
Inherited
Overrides
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| AddField | public | Adds a new field. | |
| AddFieldInternal(String; TGIS_FieldType; Integer; Integer) | public | Adds new field; for internal use. | |
| AddFieldInternal(String; TGIS_FieldType; Integer; Integer; Boolean; Integer) | public | Adds new field; for internal use. | |
| AddShape(TGIS_Shape) | public | Adds a copy of shape and makes it editable. | |
| AddShape(TGIS_Shape; Boolean) | public | Adds a copy of shape and makes it editable. | |
| 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 | Read config option parameters. (Overrides TGIS_Layer.applyConfigOptions) |
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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. | |
| bindFieldInternal | protected | Obtain a bind number for a given field name. | |
| BindSqlQueryInternal | public | Binds layer to SQL query object to provided field access methods. | |
| Build(String; TGIS_Extent; TGIS_ShapeType) | public | Builds a new layer - prepares storage. | |
| Build(String; TGIS_Extent; TGIS_ShapeType; TGIS_DimensionType) | public | Builds s new layer - prepare storage. | |
| CentroidScope | public | Calculates a centroid for a scope. | |
| 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. | |
| 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 a new shape and makes it editable. | |
| CreateShape(TGIS_ShapeType) | public | Creates a new shape and makes it editable. | |
| CreateShape(TGIS_ShapeType; TGIS_DimensionType) | public | Creates a new shape and makes it editable | |
| cursorClose | protected | Free cursor allocated by cursorOpen(). | |
| cursorEof | protected | Is it the end of the shapes? | |
| cursorEofInternal | protected | Has the end of shapes been reached? | |
| cursorFindFirst | protected | Find first occurrence of an item which meets extent and query. | |
| cursorFindNext | protected | Find next occurrence of item defined in cursorFindFirst. | |
| cursorFinish | protected | Notify about finishing reading inside a cursor. | |
| cursorFirst | protected | Move to the first shape in the cursor. | |
| cursorFirstInternal | protected | Move to the first shape in the Layer. | |
| cursorInterrupt | protected | Notify about interrupting reading inside a cursor. | |
| cursorNext | protected | Move to the next shape in the cursor. | |
| cursorNextInternal | protected | Move to next shape in Layer. | |
| cursorOpen | protected | Allocate new cursor. | |
| cursorShape | protected | Get current shape. | |
| cursorShapeEx | protected | Get current shape. | |
| cursorShapeInternal | protected | Get current shape. | |
| cursorStateRestore | protected | Restore cursor state to previously stored value. | |
| cursorStateSave | protected | Store cursor state. | |
| Delete | public | Deletes a shape. | |
| DeleteField | public | Deletes a field. | |
| Deselect | public | Clears selection of shape. | |
| DeselectAll | public | Clears selection of all shapes. | |
| doApplyAutoStyle | protected | Layer implementation of auto-styling. (Overrides TGIS_Layer.doApplyAutoStyle) |
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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. | |
| DrawEx | public | Draws a layer within a defined extent. (Overrides TGIS_Layer.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 | Flashes queued shapes. (Overrides TGIS_Layer.DrawFlash) |
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| DrawLabel | public | Draws layer labels. | |
| DrawScope | public | Draws only shapes that meet a scope criterion. | |
| DrawSelected | public | Draws only the selected item(s) on layer. (Inherited from TGIS_Layer) |
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| DrawSelectedEx | public | Draws only the selected item(s) on layer that are within a defined extent. (Overrides TGIS_Layer.DrawSelectedEx) |
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| DrawSpecial | public | Draws a layer using the passed renderer. (Overrides TGIS_Layer.DrawSpecial) |
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| ExportLayer(TGIS_LayerVector; TGIS_Extent; TGIS_ShapeType; String; Boolean) | public | Exports the layer. | |
| ExportLayer(TGIS_LayerVector; TGIS_Extent; TGIS_ShapeType; String; TGIS_Shape; String; Boolean) | public | Exports layer. | |
| ExportLayerEx | public | Exports layer. | |
| ExportStructureToFLD | public | Exports fields structure to a fld file. | |
| FieldInfo | public | Returns pointer to GIS_FieldInfo structure. | |
| FinalizeDirectWrite | public | Finalizes direct writing into layer storage. | |
| FinalizeRead | public | Finalizes reading trying to close active queries. | |
| FindField | public | Finds a field in the fields list. | |
| FindFieldInternal | public | Finds a field in the fields list (for internal use). | |
| FindFirst | public | Finds the first shape in layer. | |
| FindFirst(TGIS_Extent) | public | Finds the first occurrence of an item which meets an extent. | |
| FindFirst(TGIS_Extent; String) | public | Finds the first occurrence of an item which meets an extent and query. | |
| FindFirst(TGIS_Extent; String; TGIS_Shape; String) | public | Finds the first occurrence of an item which meets an extent, query, and additional parameters. | |
| FindFirst(TGIS_Extent; String; TGIS_Shape; String; Boolean) | public | Finds the first occurrence of an item which meets an extent, query, and additional parameters. | |
| FindNext | public | Finds the next occurrence of an item defined in FindFirst. | |
| FlashShape | public | Flashes shape several times | |
| ForEach | public | Fetches all shapes from the layer using callback function. | |
| 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. (Overrides TGIS_Layer.GetAvailableLayers) |
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| getBindedField | protected | Get field value for a shape given by unique identity. | |
| getBindedFieldInternal | protected | Get field value for a shape given by unique identity. | |
| getEdited | protected | Internally used by TGIS_Viewer. | |
| GetField | public | Gets a field value for a shape determined by its unique identity. | |
| GetFieldEx | public | Gets a field value for a shape determined by its unique identity. | |
| getFieldInternal | protected | Get the stored field value for a shape specified by unique identifier. | |
| GetLastUid | public | Gets the Uid of the last shape. | |
| GetNewUid | public | Gets the Uid for a new shape. | |
| GetSelectedCount | public | Returns the quantity of selected shapes. | |
| GetShape(TGIS_Uid) | public | Gets a shape by its unique identifier on default cursor (0). | |
| GetShape(TGIS_Uid; Integer) | public | Gets a shape by unique identifier. | |
| getShapePos | protected | Get shape using bisection. | |
| getStatistics | protected | Parse label string (to expand fields etc.). | |
| GetSubLayer | public | Retrieve the layer identified by a name. (Inherited from TGIS_Layer) |
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| GetUniqueFieldName | public | Suggests a unique field name. | |
| 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. | |
| ImportLayer(TGIS_LayerVector; TGIS_Extent; TGIS_ShapeType; String; TGIS_Shape; String; Boolean) | public | Imports a layer from an existing layer. | |
| ImportLayerEx | public | Imports a layer from an existing layer. | |
| ImportStructure | public | Imports the field structure from another layer | |
| InitializeDirectWrite | public | Builds a new layer - prepares storage for direct writing. | |
| InvalidateScope | public | Invalidates shapes in the scope. | |
| InvalidateSelection | public | Invalidates all selected shapes (but only to redraw the selection, not the shapes themselves). | |
| IsGrid | public | Checks if the layer type is grid. (Inherited from TGIS_Layer) |
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| isInScope | protected | Internally used by TGIS_Viewer. | |
| 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. | |
| 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 | Checks if the layer type is vector. (Overrides TGIS_Layer.IsVector) |
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| IsVector3D | public | Checks if the layer type is vector 3D. (Overrides TGIS_Layer.IsVector3D) |
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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. | |
| LegendInfo(Integer; TGIS_ParamsSectionVector) | public | Returns current parameters filled with the renderer styling. | |
| legendRender | protected | Prepare colors and sizes for rendering the legend. | |
| Locate(TGIS_Point; Double) | public | Locates a shape. | |
| Locate(TGIS_Point; Double; Boolean) | public | Locates a shape. | |
| LocateEx(TGIS_Point; Double; TGIS_Uid; Double; Integer; TGIS_Point) | public | Locates a shape (more precise). | |
| LocateEx(TGIS_Point; Double; TGIS_Uid; Double; Integer; TGIS_Point; Boolean) | public | Locates a shape (more precise). | |
| LocateEx(TGIS_Point; Double; TGIS_Uid; Double; Integer; TGIS_Point; Double; Boolean) | public | Locates a shape (more precise). | |
| 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. | |
| LockRenderInternal | public | This method is used only for internal use on layer reading. | |
| 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. | |
| Loop(TGIS_Extent) | public | Prepares enumerator (also known as iterator or cursor) to iterate the layer. | |
| Loop(TGIS_Extent; String) | public | Prepares enumerator (also known as iterator or cursor) to iterate the layer. | |
| Loop(TGIS_Extent; String; TGIS_Shape; String) | public | Prepares enumerator (also known as iterator or cursor) to iterate the layer. | |
| Loop(TGIS_Extent; String; TGIS_Shape; String; Boolean) | public | Prepares enumerator (also known as iterator or cursor) to iterate the layer. | |
| MergeLayer(TGIS_LayerVector; TGIS_Extent; TGIS_ShapeType; String; Boolean; Boolean) | public | Merges layer from an existing layer. | |
| MergeLayer(TGIS_LayerVector; TGIS_Extent; TGIS_ShapeType; String; TGIS_Shape; String; Boolean; Boolean) | public | Merges layer with an existing layer. | |
| MergeLayerEx | public | Merges layer with an existing layer. | |
| MergeStructure(TGIS_LayerVector; Boolean) | public | Merges the field structure from another layer. | |
| MergeStructure(TGIS_LayerVector; Boolean; Boolean) | public | Merges the field structure from another layer. | |
| 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 | Verifies if all statistics required to properly render the layer are available. (Overrides TGIS_Layer.MustCalculateStatistics) |
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| MustReproject | public | Checks if the layer must be reprojected. (Inherited from TGIS_Layer) |
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| MustSave | public | Checks if the layer was modified by editing. (Overrides TGIS_Layer.MustSave) |
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| nextCandidate | protected | Provides next shape from the candidate list. | |
| Open | public | Opens the layer. (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 | Gets a shape's styling parameters that are used during drawing in the viewer, and fills the _params parameter. | |
| Prepare | public | Opens the layer. (Inherited from TGIS_Layer) |
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| prepareCandidates | protected | Prepare list of scope candidates for SQL Layers. | |
| PrepareExportFieldNames(Integer) | public | Prepares field names to export. | |
| PrepareExportFieldNames(Integer; Boolean) | public | Prepares field names to export. | |
| PrepareExportFieldNames(Integer; Boolean; Boolean) | public | Prepares field names to export. | |
| PrepareExportFieldNames(Integer; Boolean; Boolean; Boolean) | public | Prepares field names to export. | |
| 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 | Prepare colors and size for a shape using automatic renderer. | |
| PreRecognize | public | Checks if the layer can read the file. (Inherited from TGIS_Layer) |
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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 | Used by TGIS_Shape to add itself to the flash queue. | |
| 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 | Parses the field definition file. | |
| ReadFieldRules | public | Parses the field rules file. | |
| RecalcExtent | public | Recalculates extent. (Overrides TGIS_Layer.RecalcExtent) |
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| RecalcProjectedExtent | public | Recalculates a projected extent. (Inherited from TGIS_Layer) |
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| releaseFlash | protected | Used by TGIS_Shape to remove itself from the flash queue. | |
| removeCandidate | protected | Remove shape from the candidate list. | |
| RenameField | public | Renames a field. | |
| ReOpen | public | Reopens the layer. (Inherited from TGIS_Layer) |
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| ReorderShapeUids | public | Internal method to rebuild shape's uid values and ensure ascending order. | |
| 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 shape to its original state. | |
| RevertAll | public | Reverts layer to its original content. (Overrides TGIS_Layer.RevertAll) |
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| RevertShapes | public | Reverts all shapes to their original state. | |
| 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. (Overrides TGIS_Layer.SaveData) |
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| SaveFieldRules | public | Save field rules file. | |
| 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_Layer.setUp) |
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| setUp2 | protected | Makes a general layer setup second step. (Overrides TGIS_Layer.setUp2) |
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| setUp3 | protected | Makes a general layer setup third step. (Overrides TGIS_Layer.setUp3) |
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| storeConfigOptions | protected | Store layer options in a configuration file. (Overrides TGIS_Layer.storeConfigOptions) |
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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. | |
| UnlockRenderInternal | public | This method is used only for internal use on layer reading. | |
| 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 into storage. | |
2025/10/03 20:26