private DataStructures.Geometric.Quaternion ToGeometric(OpenTK.Quaternion q)
{
DataStructures.Geometric.Quaternion ret;
ret = new DataStructures.Geometric.Quaternion((decimal)q.X, (decimal)q.Y,
(decimal)q.Z, (decimal)q.W);
return(ret);
}
private Quaternion GetKeyframeRot(bool prev = false)
{
int index = KeyFrameData.CurrentCell.RowIndex;
if (prev) index -= 1;
var x = Convert.ToDecimal(KeyFrameData.Rows[index].Cells[4].Value.ToString());
var y = Convert.ToDecimal(KeyFrameData.Rows[index].Cells[5].Value.ToString());
var z = Convert.ToDecimal(KeyFrameData.Rows[index].Cells[6].Value.ToString());
var w = Convert.ToDecimal(KeyFrameData.Rows[index].Cells[7].Value.ToString());
DataStructures.Geometric.Quaternion q = new DataStructures.Geometric.Quaternion(x,y,z,w);
return q;
}
private IUnitTransformation ResetTransform()
{
var mov = Matrix.Translation(-_document.Selection.GetSelectionBoundingBox().Center);
OpenTK.Quaternion rev = new OpenTK.Quaternion((float)PrevRotation.X,
(float)PrevRotation.Y,
(float)PrevRotation.Z,
(float)PrevRotation.W);
rev.Invert();
var q = new DataStructures.Geometric.Quaternion(0, 0, 0, -1);
var rot = Matrix.Rotation(q);
var fin = Matrix.Translation(SolidsOrigin);
PrevRotation = new DataStructures.Geometric.Quaternion((decimal)rev.X, (decimal)rev.Y,
(decimal)rev.Z, (decimal)rev.W);
var prev = Matrix.Rotation(PrevRotation);
PrevRotation = q;
return new UnitMatrixMult(fin * (rot * prev) * mov);
}
