elements of a projection lines
{"Image DocumentName": "Elements of a Projection: lines", "Image ImageDescription": "A straight visible or hidden line in a sketch has 3 possible meanings: an edge(intersection) between 2 surfaces. the edge view of a surface. the limiting element of a curved surface.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}