MATLAB: Perspective view of xz plane

3d plotscamrollperspectiveviewxz plane

Hi,

This should be an easy solution but its defeating me! I want to view a 3d plot such that I am looking at the xz plane at an angle (30 degrees or so) above it. It should look something like the following:

I'm not not having luck with view (because I think it only rotates about z axis). I'm trying to use view and then a camroll in something like this:

view(135,45) camroll(-45)

But I can't get it right. If anyone knows what to use please let me know.

Thanks

Best Answer

Try using a combination of the campos , camtarget , and camup functions.

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MATLAB: Angle between two planes on the X=0, Y=0 and Z=0 planes

Hard to answer, because it's unclear (to me) what it is you're trying to compute. Your 2 given planes, with normals N1 and N2, intersect the XY plane in 2 lines. Is it the angle between these lines that you want? If so, that angle is,

      Nxy=[0 0 1]; %unit normal to XY plane
      N1=N1/norm(N1); %make sure all normals are unit vectors
      N2=N2/norm(N2);
      Angle_XY=acosd(dot(cross(N1,Nxy), cross(N2,Nxy))); %the result

Same sort of thing for the XZ and YZ planes.

MATLAB: Camera angle from perspective

http://www.vision.caltech.edu/bouguetj/calib_doc/

Best Answer

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MATLAB: Angle between two planes on the X=0, Y=0 and Z=0 planes

MATLAB: Camera angle from perspective

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