2011

Grid Parameters dialog box
Use the Grid Parameters dialog box to specify the surface type, name, save
location, resolution, and gap filling parameters for a surface.
To create a surface from a point cloudIn the Display Manager, right-click a point
cloud layer and se... (page 1022)
Click Create tab ➤ 3D Surface panel ➤ Create From Point Cloud.
Surface Type Specify whether AutoCAD Map 3D creates a GeoTIFF or ESRI
ASC surface.
File Name The name and save location of your surface file. To change the file
name and save location, click .
Parameters
Cell Size 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 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 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 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.
Grid Parameters dialog box | 1901