Ployline Length inside selected Viewport

[saifumk8]

I'm looking for a lisp code which will get polyline length for selected viewport area only. The polyline will be beyond the viewport area, but I need a program to get only the length inside the viewport area.

currently, I'm breaking the polyline at the edge of viewport then taking the length.

thank you in Advance.

[dlanorh · Accepted solution]

Try the attached. Minimally tested, and no check that the selected item to measure is a line object, or that both ends are outside the viewport extents.

To start you must be in paperspace with no active viewports. At first prompt, select the viewport. The viewport will open into modelspace and you can start selecting line objects. Make a null selection or press enter to exit the loop and end the lisp.

[saifumk8]

Thank you very much. It's working.