Land syntax way

in a simple way see (image 1 ) that showing name of layer syntax that should be in your Autocad files you send it to us and sure to get your result you are looking for

Image 1 Land Syntax

Explain how to draw Chimney

Here, the natural boundaries of the land must be set, for example see (image2).

Important note:

Curves and lines must be closed

Image 2 Example land layer