One can select the surface file to be considered as the current surface using this command. This will be the default surface taken by the commands used to contour, obtain profiles, etc. Once the file has been selected, the Draw Surface command is automatically executed.
As regards previous versions of MDT, there is the possibility of setting as the current surface a binary grid file. Its benefit is that for very dense models a binary mesh file takes up significantly less memory than the equivalent surface file and its handling is more efficient. This benefit is offset by the fact that the binary grid has a regular cell interval, by contrast to a surface made from triangles in which any coordinate can be used as the vertex of a triangle. Using a binary grid would be suitable for bathymetry models, LIDAR flights etc.
TcpMDT