How to sketch a picture in SW?
1. sketch in the plane that you want, for example i choosed “front plane”
2. klik tools > sketch tools >sketch picture
3. select the picture that you want to sketch in your computer hard drive, for example i choosed “circle picture”
4. set the properties as needed
5. for example i changed the full image transparency so as not to interfere in the process of sketching
6. when finished, klik exit skecth
7. for example you can extrude the skecth