tlen.lsp Calculates the total length of all selected elements in AutoCAD/BricsCAD.
This program enables the user to record the quantities of a selection or all standard or dynamic blocks in the working drawing. The results of the block count may be displayed at the AutoCAD/BricsCAD command-line, written to a Text or CSV file, or displayed in an AutoCAD Table, where available. From https://www.lee-mac.com/blockcounter.html
Routine to modify terrains, TIN surfaces in BricsCAD.
Draws a grid with coordinates.
Transforms graphs from Excel spreadsheets into custom CAD entities.