FAQ Database Discussion Community

## Quaternion to EulerXYZ, how to differentiate the negative and positive quaternion

c++,geometry,quaternions,euler-angles
I've been trying to figure out the difference between these, and why ToEulerXYZ does not get the right rotation. Using MathGeoLib: axisX: x 0.80878228 float y -0.58810818 float z 0.00000000 float axisY: x 0.58811820 float y 0.80877501 float z 0.00000000 float axisZ: x 0.00000000 float y 0.00000000 float z 1.0000000...

## Calculate coordinates before (CSS-transform) rotation of point

javascript,css,matrix,transform,euler-angles
What I want to do: Give a javascript function the coordinates for a triangle in a 3d-room as parameter and it calculates the svg path and the css transformation angles for this object. What I've already figured out: to calculate the triangle between the 3 points, I would just need...

## 3D Rotation of a pose around origin

python,transformation,ros,euler-angles
I want to transform a pose around origin. The pose I have contains a position [x,y,z] and an orientation [x,y,z,w] represented as a quaternion. I have a 4x4 transformation matrix which I use to translate and rotate the position of the pose around origin. np.dot(transforma_mat, np.transpose(np.append(pose.position, 1))) So, as the...