api:dk11:delphi:gishydrology.tgis_hydrology.fill_tgis_layerpixel_tgis_extent_tgis_layerpixel_boolean
Table of Contents
TGIS_Hydrology.Fill method
DK11 for Delphi | GisHydrology.TGIS_Hydrology.Fill | Constructors | Methods | Events
Generates the hydrologically conditioned DEM.
Syntax
// Delphi public procedure Fill( const _dem : TGIS_LayerPixel; const _extent : TGIS_Extent; const _hydroDem : TGIS_LayerPixel; const _applySlope : Boolean = FILL_APPLY_SLOPE );
// C++ Builder public: void Fill( TGIS_LayerPixel* const _dem, TGIS_Extent* const _extent, TGIS_LayerPixel* const _hydroDem, const bool _applySlope );
Parameters
| Name | Type | Description |
|---|---|---|
| _dem | TGIS_LayerPixel | an input DEM |
| _extent | TGIS_Extent | an extent to be processed |
| _hydroDem | TGIS_LayerPixel | the output grid layer |
| _applySlope | Boolean | if True, algorithm applies a slight slope to ensure the drainage of water for each cell; if False, sinks are flooded and form flat areas; default parameter is True |
Remarks
Applying slope is strongly recommended. A DEM with flat areas may still cause unexpected results and such models need futher preparation. The ResolveFlat tool may be use for this purpose.
References
2021/05/26 01:14