Area and lenght of polyline

[andreas7ZYXQ]

Im looking for a lisp that return the area and lenght of a polyline.

Procedure:
Start a polyline, calculate its lenght and area and store it to.

(setq lenght)
(setq area)

After that im planning to make some info through DCL but the area and lenghts is my big issue..

Anyone there that have something that fits or could give me a hand so i can continue.

Thanks

[_gile]

Hi,

Assuming 'pline' is bound to a polyline ename:

(setq length (getpropertyvalue pline "Length"))
(setq area (getpropertyvalue pline "Area"))

Note: getpropertyvalue function is available for AutoCAD MAC and Windows since 2012 versions.

[andreas7ZYXQ]

Thanks
How could i start a (command "_pline") and store its ename to pline? So i could pick it up later on.

[_gile · Accepted solution]

You can get the polyline ename using the entlast function after the command ended (i.e. you cannot interact while _PLINE command is running).

(command "_pline")
(while (< 0 (getvar 'cmdactive)) (command pause))
(setq pline (entlast))

[andreas7ZYXQ]

Thanks for your help.  You saved my day 😃