api:dk11:delphi:gislayerpixel.tgis_layerpixel_methods
TGIS_LayerPixel methods
DK for Delphi | GisLayerPixel.TGIS_LayerPixel | Constructors | Fields | Methods | Properties | Events
Methods
Inherited
Overrides
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| addTransparency | protected | Adding transparency defined in transparent zones to image pixels . | |
| Alive | public | Makes a layer non-dormant. (Inherited from TGIS_Layer) |
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| ApplyAntialiasSettings(Boolean) | public | Applies antialias settings used in scaling operations. | |
| ApplyAntialiasSettings(Boolean; TGIS_ScalingFilter) | public | Applies antialias settings used in scaling operations. | |
| 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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| applyColorsCorrectionByVals | protected | Applying brightness, contrast and colors correction from pixel params to final correction table. | |
| 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. (Overrides TGIS_Layer.ApplyCuttingPolygon) |
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| ARGB2Gray | protected | Gray scale from ARGB bitmap. | |
| AssignedParentLayerInternal | public | Assigns a parent layer. | |
| bandsMappingChanging | protected | Checks bands mapping. | |
| basePointRot | protected | Compute position of the point after the defined in world file rotation. | |
| basePointUnRot | protected | Compute original position of the rotated point. | |
| baseRotatedExtent | protected | Compute extent (encompassing area of the extent) after defined in world file rotation. | |
| baseUnrotatedExtent | protected | Compute original extent of the rotated extent. | |
| Build(Boolean; TGIS_CSCoordinateSystem; TGIS_Extent; Double) | public | Builds an in-memory layer. | |
| Build(Boolean; TGIS_CSCoordinateSystem; TGIS_Extent; Integer; Integer) | public | Builds an in-memory layer. | |
| Build(String; Boolean; TGIS_CSCoordinateSystem; TGIS_Extent; Double; TGIS_LayerPixelSubFormat) | public | Builds a layer. | |
| Build(String; Boolean; TGIS_CSCoordinateSystem; TGIS_Extent; Integer; Integer; TGIS_LayerPixelSubFormat) | public | Builds a layer. | |
| Build(String; TGIS_CSCoordinateSystem; TGIS_Extent; Double) | public | Builds an image layer. | |
| Build(String; TGIS_CSCoordinateSystem; TGIS_Extent; Integer; Integer) | public | Builds an image layer. | |
| calculatePixelsize | protected | Calculate pixel size in layer units. | |
| ChangeHash | public | Changes the hash for the purpose of verifying layer's modifications. (Inherited from TGIS_Layer) |
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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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| convertBitsToPixels | protected | Internal use only. | |
| doApplyAutoStyle | protected | Layer implementation of auto-styling. (Inherited from TGIS_Layer) |
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| Dormant | public | Makes a layer dormant. (Overrides TGIS_Layer.Dormant) |
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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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| 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/. (Overrides TGIS_Layer.drawExtentEx) |
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| DrawFlash | public | Does nothing (for compatibility only). (Overrides TGIS_Layer.DrawFlash) |
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| 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. (Inherited from TGIS_Layer) |
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| DrawSpecial | public | Draws a layer using the passed renderer. (Overrides TGIS_Layer.DrawSpecial) |
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| enhanceContrast | protected | Enhance contrast by changing RGB values proportionally from 0 to 255. | |
| ExportLayer | public | Export layer. | |
| finalARGBMap | protected | Does final ARGB bands mapping and set on/off. | |
| FinalizeWrite | public | Performs any operation required to safely finalize write operation, such as building quad trees for TGIS_FilePixelStore. | |
| findProperPixelLock | protected | Checks locked pixels. | |
| ForEachSubLayer | public | Returns in callback event the layer and all sublayers belonging to it. (Inherited from TGIS_Layer) |
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| fullCorrection | protected | Prepare final mapping table for full color (32-bits) images. | |
| fullRGBCorrection | protected | Mapping full color (32-bits) images by . | |
| GenerateRamp(TGIS_Color; TGIS_Color; TGIS_Color; Double; Double; Double; Boolean; Double; Double; TGIS_ParamsSectionPixel; Boolean) | public | Generates a grid ramp. | |
| GenerateRamp(TGIS_Color; TGIS_Color; TGIS_Color; Double; Double; Double; Boolean; Double; Double; TGIS_ParamsSectionPixel; Boolean; TGIS_ColorInterpolationMode) | public | Generates a grid ramp. | |
| GenerateRampEx(Double; Double; TGIS_ColorMapArray; TGIS_ParamsSectionPixel) | public | Generates a grid ramp from a mapped color array. | |
| GenerateRampEx(Double; Double; TGIS_ColorMapArray; TGIS_ParamsSectionPixel; TGIS_ColorInterpolationMode) | public | Generates a grid ramp from a mapped color array. | |
| getAlphaLine | protected | Internal use only. | |
| GetAltitudeMapZone | public | Gets an altitude zone map definition. | |
| getAsyncState | protected | Report data fetching state from asynchronous sources like ECW. | |
| GetAvailableLayers | public | Gets a list of layers available in storage. (Inherited from TGIS_Layer) |
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| GetBitmap | public | Fills provided _bitmap array with values defined by _extent. | |
| getBitmapData | protected | Fills provided _bitmap array with values defined by _extent. | |
| getBitmapPixels | protected | Gets bitmap layer data in ARGB format. | |
| GetColorRamp | public | Calculates default color ramp RGB values. | |
| GetGrid | public | Fills provided _grid array with values defined by _extent. | |
| getGridData | protected | Fills provided _grid array with values defined by _extent. | |
| getLine | protected | Internal use only. | |
| getLineBasic | protected | Internal use only. | |
| getLineBits | protected | Internal use only. | |
| getLinePixels | protected | Internal use only. | |
| getMapZoneVal_Old | protected | Getting mapping zone from String | |
| getNativeLine | protected | Internal use only. | |
| getNativeLineGrayGrid | protected | Internal use only. | |
| getNativeValue | protected | Internal use only. | |
| GetRawBitmap | public | Fills provided _bitmap array with values defined by _extent. | |
| GetSubLayer | public | Retrieve the layer identified by a name. (Inherited from TGIS_Layer) |
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| gridToARGBTable | protected | Fills pixels array with ARGB values from source grid table. | |
| histEqPav | protected | Prepare correction (mapping) table with histogram equalization for full color images. | |
| histRGB2Gray | protected | Prepare one histogram from RGB channel histograms. | |
| HourglassShake | public | Notifies of busy state using an hourglass. (Inherited from TGIS_Layer) |
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| ImportLayer(TGIS_LayerPixel; TGIS_Extent) | public | Imports layer from an existing pixel layer. | |
| ImportLayer(TGIS_LayerPixel; TGIS_Extent; TGIS_CSCoordinateSystem; Cardinal; Cardinal) | public | Imports layer from an existing pixel layer. | |
| ImportLayer(TGIS_LayerPixel; TGIS_Extent; TGIS_CSCoordinateSystem; Cardinal; Cardinal; TGIS_LayerPixelSubFormat) | public | Imports layer from an existing pixel layer. | |
| importPixelData | protected | Imports and saves data form pixel layer. | |
| InitializeWrite | public | Performs any operation required to safely initialize write operation, such as batch operations for TGIS_FilePixelStore. | |
| inversePalette | protected | Prepare a negative from the RGB palette. | |
| IsGrid | public | Checks if the layer type is grid. (Overrides TGIS_Layer.IsGrid) |
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| IsPixel | public | Checks if the layer type is pixel. (Overrides TGIS_Layer.IsPixel) |
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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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| 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. (Inherited from TGIS_Layer) |
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| IsVector3D | public | Checks if the layer type is vector 3D. (Inherited from TGIS_Layer) |
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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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| lanczos3 | protected | Lanczos filtering function. | |
| linear | protected | Linear (triangle) filtering function. | |
| Locate | public | If a given point is located in the image area, returns true and sets variables. | |
| LocateEx | public | If a given point is located in the image area, returns true and sets variables. | |
| Lock | public | Locks layer in burst-mode operation. (Inherited from TGIS_Layer) |
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| LockEstimate | public | Estimates memory size for pixel layer to be update. | |
| LockPixels(TGIS_Extent; TGIS_CSCoordinateSystem; Boolean) | public | Locks a fragment of the pixel layer for updating. | |
| LockPixels(TGIS_Extent; TGIS_CSCoordinateSystem; Double; Boolean) | public | Locks a fragment of the pixel layer for updating. | |
| LockPixels(TGIS_Extent; TGIS_CSCoordinateSystem; Double; Integer; Boolean) | public | Locks a fragment of the pixel layer for updating. | |
| LockPixels(TGIS_Extent; TGIS_CSCoordinateSystem; Integer; Boolean) | public | Locks a fragment of the pixel layer for updating. | |
| LockPixels(TRect; Boolean) | public | Locks a fragment of the pixel layer for updating. | |
| LockPixels(TRect; Integer; Boolean) | public | Locks a fragment of the pixel layer for updating. | |
| LockPixels(TRect; TGIS_Extent; Integer; Integer; Integer; Boolean) | public | Locks a fragment of the pixel layer for updating. | |
| lockThread | protected | Locks thread. (Inherited from TGIS_Layer) |
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| Loop(Double; TGIS_Shape; Boolean) | public | Prepares enumerator to iterate the layer through the linear shape. | |
| Loop(Double; TGIS_Shape; Integer; Boolean) | public | Prepares enumerator to iterate the layer through the linear shape. | |
| Loop(TGIS_Extent; Double; Boolean) | public | Prepares enumerator to iterate the layer (pixels are treated as points). | |
| Loop(TGIS_Extent; Double; Boolean; TGIS_Shape; String; Boolean) | public | Prepares enumerator to iterate the layer. | |
| Loop(TGIS_Extent; Double; Boolean; TGIS_Shape; String; Integer; Boolean) | public | Prepares enumerator to iterate the layer. | |
| Loop(TGIS_Extent; Double; Integer; Boolean) | public | Prepares enumerator to iterate the layer (pixels are treated as points). | |
| Loop(TGIS_Extent; Double; TGIS_Shape; String; Boolean) | public | Prepares enumerator to iterate the layer (pixels are treated as points). | |
| Loop(TGIS_Extent; Double; TGIS_Shape; String; Integer; Boolean) | public | Prepares enumerator to iterate the layer (pixels are treated as points). | |
| makeHistogram | protected | Read, or make and save, the histogram. | |
| MapColorValue | public | Maps color value to pixel color. | |
| MapGridValue | public | Maps grid value to pixel color. | |
| MapToRaster | public | Converts map coordinates to raster pixel location. | |
| MapToRasterRect | public | Converts map extent to raster rectangle. | |
| MergeLayer | public | Merge layer to an existing 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. (Inherited from TGIS_Layer) |
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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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| Open | public | Opens the layer. (Inherited from TGIS_Layer) |
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| openBufferedFileStream | protected | Open a file stream in read mode. | |
| 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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| Prepare | public | Opens the layer. (Inherited from TGIS_Layer) |
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| prepareAltitudeMapTable | protected | Prepare altitude map array. | |
| prepareColorRamp | protected | Prepare color ramp array. | |
| PrepareForExport | public | Prepares layer for export. (Inherited from TGIS_Layer) |
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| prepareMinMaxZ | protected | Scan grid to prepare min/max value of altitude | |
| prepareMinMaxZGray | protected | Scan image to prepare min/max value of altitude when interpreting RGB as single channel "AsGrid". | |
| 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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| prepColorMapTbl | protected | Prepare an array (corRGB) for mapping full RGB colors. | |
| prepCorTbl | protected | Prepare mapping table with no correction for full color images. | |
| prepFinalCorTable | protected | Prepare final mapping table for full color (32-bits) images. | |
| prepFullGrayTable | protected | Preparing map table for making a gray scale image from a full color (32-bits) bitmap scan line. | |
| prepFullRGBMapTbl | protected | Prepare corFullRGB table. | |
| prepGrayMapTbl | protected | Prepare an array (mapGray2RGB) for mapping gray scale to colors by points (grayMapList). | |
| prepRGBHist | protected | Prepare histograms for ARGB (32-bits) bitmap scan line. | |
| prepTransparent | protected | Prepare transparency table. | |
| 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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| projectionNeed | protected | If image reprojection is needed. | |
| Project_Ref | public | Applies a projection on the single point. (Inherited from TGIS_Layer) |
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| putBitmapRawData | protected | Fills provided _bitmap array with values defined by _extent. | |
| PutGrid | public | Puts _grid array into layer at the place defined by _extent. | |
| 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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| RasterToMap | public | Converts raster pixel location to map coordinates | |
| RasterToMapRect | public | Convert raster rectangle to map extent | |
| 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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| readDoubleBE | protected | Read double (8 bytes) from big endian stored bytes. | |
| readDoubleLE | protected | Read double (8 bytes) from little endian stored bytes. | |
| ReadGridLine | public | Reads a specific line of the grid into the preallocated buffer. | |
| RecalcExtent | public | Recalculates extent based on real shapes. (Inherited from TGIS_Layer) |
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| RecalcProjectedExtent | public | Recalculates the projected extent. (Overrides TGIS_Layer.RecalcProjectedExtent) |
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| Recalculate | public | Recalculates layer MinZ and MaxZ values. | |
| ReOpen | public | Reopens the layer. (Overrides TGIS_Layer.ReOpen) |
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| replaceWorkingFiles | protected | Replaces original image by modified (temporary). | |
| 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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| resolveBandDefintion | protected | Resolve bands definition from ForceBandLayout or metadata. | |
| RevertAll | public | Reverts layer to its original content. (Overrides TGIS_Layer.RevertAll) |
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| RootLayer | public | Returns the absolute parent layer. (Inherited from TGIS_Layer) |
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| rotationNeed | protected | If image rotation is needed. | |
| SaveAll | public | Saves layer and destroys mirrored items. (Inherited from TGIS_Layer) |
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| SaveData | public | Save the entire layer to the file. (Overrides TGIS_Layer.SaveData) |
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| ScaleGrid(TGIS_GridArray; TGIS_GridArray; Integer; Integer) | public | Scales grid array using a linear filter by default. | |
| ScaleGrid(TGIS_GridArray; TGIS_GridArray; Integer; Integer; TGIS_ScalingFilter) | public | Scales grid array using defined filtering. | |
| setBitmapPalette | protected | Set bitmap palette to gray scale image. | |
| setBmpTransparent | protected | Fills provided _bitmap array with Alpha value = $FF (full transparent). | |
| 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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| SetCurrentFileScale | public | Sets internal file scales - (1.0, 1.0) is always possible | |
| setFileScale | protected | Set internal imagery scale. | |
| setFileScaleXY | protected | Set internal imagery scale. | |
| setFileView | protected | Set internal imagery view. | |
| setMapZone(array of Integer; TGIS_Color; TGIS_PixelChannelZone) | protected | Set mapping zone in color map table. | |
| setMapZone(array of Integer; TGIS_Color; TGIS_PixelGrayZone) | protected | Set mapping zone in color map table. | |
| setNoDataTable | protected | Fills provided _grid array with NoDataValue | |
| setPage | protected | Sets CurrentPage in multipages image | |
| setUp | protected | makes a general layer setup (Overrides TGIS_Layer.setUp) |
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| setUp2 | protected | Makes a general layer setup second step. (Inherited from TGIS_Layer) |
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| setUp3 | protected | Makes a general layer setup third step. (Overrides TGIS_Layer.setUp3) |
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| setUpInternal | protected | setting up pixel layer parameters | |
| setupParams | protected | Set up parameters cache. | |
| SetWorld | public | Sets world parameters (equivalent to worldfile). | |
| setWorldFile | protected | Set extent based on world file (like .tfw, .bpw) itp. | |
| simpleRGBCorrection | protected | Mapping red, green, blue colors bands if image. | |
| 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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| transformNeed | protected | If image transformation is needed. | |
| Unlock | public | Unlocks layer from burst-mode operation. (Inherited from TGIS_Layer) |
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| UnlockPixels | public | UnLocks a fragment. | |
| 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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2025/10/24 01:05