Thread: 3d cad
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Old 16th February 2011, 11:58 PM
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alga alga is offline
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Location: Vilnius, Lithuania
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Originally Posted by mr henderson View Post
Not really telling us a lot there, though, are you? That sounds more like a difference in how it works rather than what the difference means to the user.
In a 3D CAD, a sphere is a sphere, an exact mathematical representation. In a 3D modeler, a sphere is an approximation made out of many little triangles, like here:
All dimensions involving curved lines or surfaces will be approximate when working with a mesh, and exact when working with a solid model.

That said, Sketchup is great for many CAD-like applications. My brother designed a gazebo in Sketchup prior to building it out of wood and polycarbonate. Worked a treat.
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