- Surface Type
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Specify whether AutoCAD Map 3D creates a GeoTIFF or ESRI ASC surface.
- File Name
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The name and save location of your surface file. To change the file name and save location, click
.
Parameters
- Cell Size
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Specify the number of point cloud units per output cell (raster pixel). This parameter determines the output size of the raster surface. For a 300 x 500 meter point cloud, setting the cell size to 0.5 results in a 600 x 1000 pixel raster image.
- Cell Units
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The unit of measurement for your point cloud cell size. Cell units can be measured in meters, feet, US survey feet, and international feet. By default, cell units are measured in meters.
- Search Radius
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Specify the input point weight. The vertical (Z) value for each cell is calculated from the Z-values of all points in the cell. Those closest to the center are weighted highest, while those at the search radius limit are weighted half as much as the center points. Increase the search radius to give more weight to Z-values for remote points. Decrease the search radius to give less weight to Z-values for remote points.
- Fill Gaps
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Fills gaps in your surface. Check the Fill Gaps box, and select the appropriate method: Nearest Neighbor, Normal Distribution, Normal Distribution Smooth, Square Distance, or Square Distance Smooth.