The Segments to raster operation rasterizes a segment map. The output raster map always uses the same domain as the input segment map. This means that the class names, IDs, or values used in the segment map are also used in the raster map.
For the output raster map, an existing georeference has to be selected or a new one can be created. The georeference determines the number of lines and columns of the output map and the pixel size of the map, see also the examples in the Additional info below. It is strongly advised that vector maps of the same area are rasterized on the same georeference: any map calculation or spatial operation performed later on a combination of raster maps will only make sense if the pixels in these maps refer to the same area on the ground.
When a segment map has an attribute table or when the domain of the segment map has an attribute table, the Segments to raster operation automatically links this attribute table to the output raster map.
Tip:
When you want to create a Digital Elevation Model, you can directly do the operation Contour interpolation. Contour Interpolation first rasterizes your segment map, then calculates interpolated values for the pixels in between the contour lines.
Input map requirements:
No special input map requirements.
Domain and georeference of output map:
The output raster map uses the same domain as the input segment map.
The georeference for the output map has to be selected or created; you can usually select an existing georeference corners. The georeference for the raster map must use the same coordinate system as the segment map. Georeference None cannot be selected for the output map.
Tips:
Additional information:
The georeference you use for the output raster map determines the pixel size of the raster map and thus whether shapes of segments are well retained. Below you find three examples of rasterized segment maps, each one with a different pixel size.
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See also:
Segments to raster : dialog box