DTMs
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Assign Attributes - Intersects DTM
The Intersects DTM Assign Attributes option has been added to the Assign Block Model tool on the Grid / DTM tab, in the DTM Assign group .
The Assign Attributes group options determine the area of the DTM to which the attributes are assigned. If you select the Intersects DTM option, attributes will only be assigned to blocks that are intersected by the wireframe solid; leaving blocks within and outside the solid unassigned.