Fabian,
I won't be able to take a look at this for a couple of hours.
But I think I understand what you are trying to do.
I will get back to you.
Miguel
> Miguel,
>
> I try to implement the rotational stuff we discussed previously but I
> get some problems.
> The purpose is to rotate around an axis defined by "axisAngle" and
> passing through the point "point" (see code below). The rotation angle
> is included in "axisAngle". The basic idea in the code is to translate
> the molecule so that the center of rotation moves to 0,0 (screen
> coordinate), then do the rotation and translate again by the opposite
> amount of the previous rotation. The scheme in code below works as long
> as I don't rotate with the mouse. If I begin to rotate with the mouse
> then further call to rotate(...) doesn't behave as expected. Actually,
> as I expect; probably because I don't understand very good what is
> returned by getViewTransformMatrix(). I guess you will immediately see
> what's going wrong in my code (I put translations in matrixRotate which
> is probably not good).
>
> Thankx
>
> in DisplayPanel.java:
>
> public void rotate(Vector3f point, AxisAngle4f axisAngle) {
> Matrix4f matrix = new Matrix4f();
> Vector3f center = new Vector3f(chemframe.getCenter());
> point.negate();
> point.add(center);
> matrix.setIdentity();
> matrix.set(point); //translation
> matrixRotate.mul(matrix, matrixRotate);
> matrix.setIdentity();
> matrix.setRotation(axisAngle); //rotation
> matrixRotate.mul(matrix, matrixRotate);
> point.negate();
> matrix.setIdentity();
> matrix.set(point); //translation
> matrixRotate.mul(matrix,matrixRotate);
>
> repaint();
> }
>
> Fabian
> --
> Fabian Dortu <[EMAIL PROTECTED]>
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