how to rotate cube not parallel to axis

2 vues (au cours des 30 derniers jours)
imola
imola le 22 Oct 2014
Modifié(e) : imola le 24 Oct 2014
Dear,
I used from file exchange-MATLAB central a program to generate a cube then I tried to rotate but the new cube is parallel to axis so how I get cube not parallel like that
function drawBox3d(box, varargin)
%DRAWBOX3D Draw a 3D box defined by coordinate extents
%
% drawBox3d(BOX);
% Draw a box defined by its coordinate extents:
% BOX = [XMIN XMAX YMIN YMAX ZMIN ZMAX].
% The function draws only the outline edges of the box.
%
% Example
% % Draw bounding box of a cubeoctehedron
% [v e f] = createCubeOctahedron;
% box3d = boundingBox3d(v);
% figure; hold on;
% drawMesh(v, f);
% drawBox3d(box3d);
% set(gcf, 'renderer', 'opengl')
% axis([-2 2 -2 2 -2 2]);
% view(3)
%
% See Also:
% boxes3d, boundingBox3d
%
% ---------
% author : David Legland
% INRA - TPV URPOI - BIA IMASTE
% created the 10/12/2003.
%
% HISTORY
% 2010-02-22 creation
% default values
xmin = box(:,1);
xmax = box(:,2);
ymin = box(:,3);
ymax = box(:,4);
zmin = box(:,5);
zmax = box(:,6);
nBoxes = size(box, 1);
for i=1:length(nBoxes)
% lower face (z=zmin)
drawEdge3d([xmin(i) ymin(i) zmin(i) xmax(i) ymin(i) zmin(i)], varargin{:});
drawEdge3d([xmin(i) ymin(i) zmin(i) xmin(i) ymax(i) zmin(i)], varargin{:});
drawEdge3d([xmax(i) ymin(i) zmin(i) xmax(i) ymax(i) zmin(i)], varargin{:});
drawEdge3d([xmin(i) ymax(i) zmin(i) xmax(i) ymax(i) zmin(i)], varargin{:});
% front face (y=ymin)
drawEdge3d([xmin(i) ymin(i) zmin(i) xmin(i) ymin(i) zmax(i)], varargin{:});
drawEdge3d([xmax(i) ymin(i) zmin(i) xmax(i) ymin(i) zmax(i)], varargin{:});
drawEdge3d([xmin(i) ymin(i) zmax(i) xmax(i) ymin(i) zmax(i)], varargin{:});
% left face (x=xmin)
drawEdge3d([xmin(i) ymax(i) zmin(i) xmin(i) ymax(i) zmax(i)], varargin{:});
drawEdge3d([xmin(i) ymin(i) zmax(i) xmin(i) ymax(i) zmax(i)], varargin{:});
% the last 3 remaining edges
drawEdge3d([xmin(i) ymax(i) zmax(i) xmax(i) ymax(i) zmax(i)], varargin{:});
drawEdge3d([xmax(i) ymax(i) zmin(i) xmax(i) ymax(i) zmax(i)], varargin{:});
drawEdge3d([xmax(i) ymin(i) zmax(i) xmax(i) ymax(i) zmax(i)], varargin{:});
end
I tried to use
t1=45;
t2=30;
Rxy = [cos(t1) -sin(t1), 0; sin(t1), cos(t1), 0; 0, 0, 1];
Rxz = [cos(t2) -sin(t2), 0; 0, 0, 1; sin(t2), cos(t2), 0];
min=[xmin; ymin; zmin];
max=[xmax; ymax; zmax];
min = Rxy*Rxz*min
max = Rxy*Rxz*max
can I transfer it using a corner point that we use it in 2dim.
could anyone help me.
regards

Réponses (1)

Chad Greene
Chad Greene le 22 Oct 2014
You can use rotate and specify any origin about which to perform the rotation.

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