Import polylines in a new Cad drawing
If you already have a vectorial (Dxf,
Dwg, Dc1, Hpgl, Plt) or raster (Gif, Jpeg, Bmp, Png, Tif, Tga, Pcx) file
including the drawing/image of the vectorial element/polylines, after
you created a new Cad drawing, you can use the "File -
Import... - Import Polylines from many file types..." menu.
If enabled you will see the
'Filter and optionally scale elements' dialog if you select a vectorial
file, or the
'AutoTrace elements' dialog if you select a raster file.
At the end of the process, you will get the detected Regions inside your Cad
drawing. You can now cut them or modify them.
Read also this page Importing regions in a new Cad drawing.
I suggest also to take a look at this page, to better understand some important concepts of devFoam: DevFoam FAQ and important concepts