<![CDATA[Matrix rotation of unit cube]]>
https://help.geogebra.org/topic/matrix-rotation-of-unit-cube
Wed, 03 Oct 2018 20:46:18 +0000Fri, 28 Sep 2018 21:11:59 +0000Zend_Feed<![CDATA[I think you have a problem with continuity of transformation of sphere. rotate the cube is not suddenly continue I am afraid that you must do with two points, at least because hairy ball theorem https://en.wikipedia.org/wi... perhaps other user can give a solution]]>
https://help.geogebra.org/topic/matrix-rotation-of-unit-cube#comment-247006
Sat, 29 Sep 2018 10:54:46 +0000<![CDATA[Hello kathrynp! I think that you can avoid this "jumping" by changing the definition of your cube. Try c=cube(O,A,vector(C))And than c_x=(O,Rx*A,vector(Rx*C))
c_y=(O,Ry*A,vector(Ry*C))
c_x=(O,Rz*A,vector(Rz*C))I presume, that this "jumping" is caused by the "internal way of GeoGebra" to create the cube by three given points, especially your point D. Take a short look at the attached file and I hope, that this will solve your problem. Greetings mire2]]>
https://help.geogebra.org/topic/matrix-rotation-of-unit-cube#comment-247020
Sat, 29 Sep 2018 15:46:35 +0000<![CDATA[I'll try it when the bug I found in applymatrix are solved]]>
https://help.geogebra.org/topic/matrix-rotation-of-unit-cube#comment-247022
Sat, 29 Sep 2018 16:27:09 +0000<![CDATA[Thanks! That's so tidy - especially embedding the rotation in the cube command. I've still got a problem inputting the Cube() command though - It says "Please check your input - number expected O" so I think I'll have to try another re-install. ]]>
https://help.geogebra.org/topic/matrix-rotation-of-unit-cube#comment-247024
Sat, 29 Sep 2018 16:16:40 +0000<![CDATA[I have done the work using the matrix product instead applymatrix over the basic points of a cube it is not hard]]>
https://help.geogebra.org/topic/matrix-rotation-of-unit-cube#comment-247054
Sat, 29 Sep 2018 21:31:15 +0000<![CDATA[Thanks for your help, everyone! I still don't know why I was getting the error above. I abandoned that file and started fresh, and all worked well. Matrix transformations in 3D are not as straightforward as in 2D! Particularly working out how to generate the transformed cube!]]>
https://help.geogebra.org/topic/matrix-rotation-of-unit-cube#comment-247334
Wed, 03 Oct 2018 19:43:18 +0000<![CDATA[perhaps this post help you to find problems https://help.geogebra.org/t...]]>
https://help.geogebra.org/topic/matrix-rotation-of-unit-cube#comment-247336
Wed, 03 Oct 2018 20:46:19 +0000