how to calculate a surface

Posted by auie on
URL: https://forum.librecad.org/how-to-calculate-a-surface-tp5716879.html

Dear All,

I want to calculate the surface of a polygon.
I already found the following topic where someone wrote that one just need to use surface calculation in "info":
http://forum.librecad.org/Surface-area-of-enclosed-shape-td5708188.html

But could someone please explain me what to do after clicking on it? I have one horizontal orange fixed line and another vertical which moves as I move the mouse. How can I do something with this please?

PS: I have the same problem to draw a line between two points: I have one horizontal orange fixed line and another vertical which moves as I move the mouse. How can I do something with this? What I do is that I change each time the coordinate in the properties, but it is not a good way.