api:dk11:python:tatukgis.pdk.tgis_rendererabstract
Table of Contents
TGIS_RendererAbstract class
DK11 for Python | tatukgis.pdk.TGIS_RendererAbstract | Classes | Constructors | Methods | Properties
Basic renderer class to be used as a parent for customer map renderers for VCL, FireMonkey, WPF etc.
Syntax
# Python class TGIS_RendererAbstract( Object ):
Inheritance
→ Object
Constructors
Inherited
Overrides
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| __init__ | public | Standard constructor. | |
Methods
Inherited
Overrides
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| AfterDraw | public | Receive notification about pending renderer update. | |
| BeforeDraw | public | Preparation of the renderer context. | |
| CanvasClearTransformation | public | Reset any transformation on the Canvas object. | |
| CanvasDrawArc(int, int, int, float, float) | public | Draw an arc on the Canvas object. | |
| CanvasDrawArc(int, int, int, int, int, int, int, int) | public | Draw an arc on the Canvas object. | |
| CanvasDrawBitmap(TGIS_Bitmap, TRect) | public | Draw bitmap on the Canvas object. | |
| CanvasDrawBitmap(TGIS_Pixels, TPoint, TRect, TGIS_BitmapFormat, TGIS_BitmapLinesOrder) | public | Draw bitmap on the Canvas object. | |
| CanvasDrawEllipse | public | Draw an ellipse on the Canvas object. | |
| CanvasDrawLine | public | Draw a line on the Canvas object. | |
| CanvasDrawPie | public | Draw a pie on the Canvas object. | |
| CanvasDrawPolygon(TGIS_DrawBuf) | public | Draw a polygon on the Canvas object. | |
| CanvasDrawPolygon(TGIS_DrawBuf, int) | public | Draw a polygon on the Canvas object. | |
| CanvasDrawPolygon(TGIS_DrawBuf, TGIS_IntegerArray) | public | Draw a polygon on the Canvas object. | |
| CanvasDrawPolygon(TGIS_DrawBufF) | public | Draw a polygon on the Canvas object. | |
| CanvasDrawPolygon(TGIS_DrawBufF, int) | public | Draw a polygon on the Canvas object. | |
| CanvasDrawPolygon(TGIS_DrawBufF, TGIS_IntegerArray) | public | Draw a polygon on the Canvas object. | |
| CanvasDrawPolyLine(TGIS_DrawBuf) | public | Draw a poly-line on the Canvas object. | |
| CanvasDrawPolyLine(TGIS_DrawBuf, int) | public | Draw a poly-line on the Canvas object. | |
| CanvasDrawPolyLine(TGIS_DrawBuf, TGIS_IntegerArray) | public | Draw a poly-line on the Canvas object. | |
| CanvasDrawPolyLine(TGIS_DrawBufF) | public | Draw a poly-line on the Canvas object. | |
| CanvasDrawPolyLine(TGIS_DrawBufF, int) | public | Draw a poly-line on the Canvas object. | |
| CanvasDrawPolyLine(TGIS_DrawBufF, TGIS_IntegerArray) | public | Draw a poly-line on the Canvas object. | |
| CanvasDrawRectangle | public | Draw a rectangle on the Canvas object. | |
| CanvasDrawText | public | Draw a text on the Canvas object. | |
| CanvasFontMetrics | public | Provide basing metric for a currently selected CanvasFont. | |
| CanvasNative | public | Return rendering context native to current renderer. | |
| CanvasSetTransformation | public | Set a transformation on the Canvas object. | |
| CanvasTextEm | public | Calculate text EM value for a currently selected CanvasFont. | |
| CanvasTextExtent | public | Calculate text EM value for a currently selected CanvasFont. | |
| CreateContext(IGIS_ViewerParent, IGIS_Viewer, TGIS_RendererContext, TPoint, int, int, int, int) | public | Initiate context for the renderer. | |
| CreateContext(IGIS_ViewerParent, IGIS_Viewer, TGIS_RendererContext, TPoint, int, int, int, int, TRect) | public | Initiate context for the renderer. | |
| CreateInstance | public | Create an instance of object of the same type as current one. | |
| CreatePrinterContext | public | Initiate context for the printer. | |
| Flush | public | Update BaseMap of the context . | |
| LockTransparent | public | Begin of drawing in a layer transparency mode. | |
| MeasureShieldTexture | public | Measure shield size | |
| PixelsToTwips | public | Convert size from device dependent pixels to device independent Twips (1/1440 inch). | |
| PrepareBitmapCache | public | Prepare renderer cache for topmost bitmap layers. | |
| PrepareHourglassContext | public | Allow busy indicator upon rendering process. | |
| ReleaseContext | public | Release an instance. | |
| RenderBitmap(TObject, TGIS_Bitmap, TRect, bool) | public | Render bitmap on a current canvas with scaling. | |
| RenderBitmap(TObject, TGIS_Pixels, TPoint, TRect, TGIS_BitmapFormat, TGIS_BitmapLinesOrder) | public | Render bitmap on a current canvas. | |
| RenderBitmapBegin | public | Prepare custom rendering context for lengthy bitmap drawing. | |
| RenderBitmapCache | public | Render bitmap cache for topmost pixel layers. | |
| RenderBitmapEnd | public | Finalize custom rendering context. | |
| RenderChart | public | Render a chart for a single shape in a current context. | |
| RenderEditor | public | Render an editor (if any). | |
| RenderLabel(TObject) | public | Render a label for a single shape in a current context. | |
| RenderLabel(TObject, TGIS_DrawBuf) | public | Render a label for a single shape in a current context. | |
| RenderShape(TObject, bool, TGIS_RendererMultipassMode) | public | Render a single shape in a current context. | |
| RenderShape(TObject, TObject, bool, TGIS_RendererMultipassMode) | public | Render a single shape in a current context. | |
| RenderShapeFlashed | public | Render shape in a flush state | |
| RenderShieldTexture(TObject, bool, TPoint) | public | Render texture shield (label + chart + whatever) for 3D viewer purposes | |
| RenderShieldTexture(TObject, bool, TPoint, TObject) | public | Render texture shield (label + chart + whatever) for 3D viewer purposes | |
| RestoreContext | public | Restore context using same data as used by CreateContext. | |
| TwipsToPixels(int) | public | Convert the size from to device independent Twips (1/1440 inch) to device dependent pixels. | |
| TwipsToPixels(int, int) | public | Convert the size from to device independent Twips (1/1440 inch) to device dependent pixels. | |
| TwipsToPoints | public | Convert the size from to device independent Twips (1/1440 inch) to device points. | |
| UnlockTransparent | public | End of drawing in a layer transparency mode. | |
| Update | public | Receive notification about pending renderer update. | |
Properties
Inherited
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| CanvasBrush | public | Brush of the Canvas object. | |
| CanvasExtent | public | Return extent taken in account by label allocator. | |
| CanvasFont | public | Font of the Canvas object. | |
| CanvasPen | public | Pen of the Canvas object. | |
| Context | public | Renderer context. | |
| FontScale | public | Fonts scaling factor of the rendering context (in percents). | |
| Height | public | Height of the rendering context (in pixels). | |
| Info | public | Provide basic info about renderer like underlying technology used. | |
| Parent | public | Viewer (parented interface) which owns renderer. | |
| PPI | public | Point-Per-Inch of the rendering context. | |
| Shift | public | Offset of the rendering rectangle (in pixels). | |
| TileRect | public | Rectangle of the rendering context (in pixels). | |
| Viewer | public | Viewer which owns renderer. | |
| ViewRect | public | Viewing rectangle of the rendering context (in pixels). | |
| Width | public | Width of the rendering context (in pixels). | |
References
2023/08/09 01:58