An add-on for AUTOCAD or BricsCAD, which makes the triangulation of a set of POINT entities, the intersection curves (isolines) between a set of 3DFACE entities and a set of equidistance plans, horizontally or vertically and the volume and center of gravity of a set of bodies or between surfaces composed of 3DFACE entities. You can also load and draw a file of points having the format: Number X Y Z Code. The drawing of the XYZ files is made with POINT, 3DPOLY, SPLINE or BLOCK entities, according to a modifiable library of codes. The triangulation is performed on a convex hull of a set of points. You can triangulate million points! The isolines can be interpolated and their colors are according to a drawn legend. The isolines having Z a multiple of a value will be drawn thickened. You can define a clipping parallelepiped for isolines. You can also make the projection over a triangulation of a 2D POLYLINE and generate cross sections and a longitudinal profile corresponding at projection. The POLYLINE may contain arcs. Color-filled contour maps can be also generated. In addition, you can draw a DWG file in Google Earth, by generating a 2D or 3D KML file type. The DWG file can be in any projected coordinate system and from any part of the globe. It is also possible to determine the flatness of the surfaces and you can import and export LandXML file type!