markraz
Full Member
- Joined
- Feb 19, 2014
- Messages
- 338
Hi I have a few questions that are related to some basic 3D math.
1. If I have a plane in a 3D coordinate system, and I know 2 points on the plane, can I use the "cross product" to find the "normal" to this plane?
2. Once I know the "normal" of the plane (from question 1), what math technique(s) do I use to find the angle of this normal vector with respect to the origin in the 3D coordinate system ??
3. If I have the angle of the normal vector (from question 2) how do I project an arbitrary point in 3D space along that same normal vector??
sorry for 3 questions but I didn't want to create 3 posts, thanks
1. If I have a plane in a 3D coordinate system, and I know 2 points on the plane, can I use the "cross product" to find the "normal" to this plane?
2. Once I know the "normal" of the plane (from question 1), what math technique(s) do I use to find the angle of this normal vector with respect to the origin in the 3D coordinate system ??
3. If I have the angle of the normal vector (from question 2) how do I project an arbitrary point in 3D space along that same normal vector??
sorry for 3 questions but I didn't want to create 3 posts, thanks