M3D

Command line: M3D

Description: create 3D model

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Menu: TopoLT » 3D Model » Create 3D model

Using this command you can create 3D model of field using points that have X,Y,Z coordinates or lines or polylines. Interpolation method for this version of program is only triangulation method with linear interpolation (Triangulation with Linear Interpolation).

Options available for this command are:

· 3D model can be realized in gradual colors that vary from minimum to maximum of elevations (performance on colors is limited at 256 colors because of CAD). Choosing minimum and maximum color can be done using program configuration option or through command Om3d;

· from points that were selected to realize 3D model can be eliminated those with a certain elevation, default value being for point with elevation 0.000;

· when creating 3D model you can select lines and polylines in which 3D model has a forced change of slope. Selected lines and polylines must pass through topographical points with X,Y,Z coordinates or must be draw in space;

· 3D model can be limited in a perimeter through selecting a polyline that marks zone in which you want to create 3D model. The 3D model that was built using all selected points will be cut through this limit.

Recommendation: if you don’t have points with elevation but there are entities drawn in space (3dpoly, 3dface, polygonmesh, polyfacemesh, line, etc.) then you can obtain points with elevation from these entities using command AutoPct.

Cases in which is applied a forced change of slope when creating 3D model:

Legend:

	points with X,Y,Z coordinates through which 3D model is created
	lines of forced change of slope
	triangles that are formed when creating 3D model

Fig. 1

Fig. 2