private void drawCircle(MultiVector circle, Color color)
{
MultiVector n, c;
double r;
IPNS.GetCircleParams(circle, out n, out c, out r);
MultiVector rotAxis = MultiVector.CrossProduct(Basis.E3, n);
double rotAngle = Math.Acos(n.E3);
if (rotAxis == MultiVector.Zero)
{
rotAxis = Basis.E1;
rotAngle = 0.0;
}
GL.Color3(color);
GL.PushMatrix();
GL.Translate(c.E1, c.E2, c.E3);
GL.Rotate(MathHelper.RadiansToDegrees(rotAngle), rotAxis.E1, rotAxis.E2, rotAxis.E3);
GL.Scale(r, r, r);
drawModel(circleVbo);
GL.PopMatrix();
}
private void drawPlane(MultiVector plane, Color color)
{
MultiVector n;
double d;
IPNS.GetPlaneParams(plane, out n, out d);
MultiVector rotAxis = MultiVector.CrossProduct(Basis.E3, n);
double rotAngle = Math.Acos(n.E3);
if (rotAxis == MultiVector.Zero)
{
rotAxis = Basis.E1;
rotAngle = 0.0;
}
GL.Color3(color);
GL.PushMatrix();
GL.Translate(n.E1 * d, n.E2 * d, n.E3 * d);
GL.Rotate(MathHelper.RadiansToDegrees(rotAngle), rotAxis.E1, rotAxis.E2, rotAxis.E3);
drawModel(planeVbo);
GL.PopMatrix();
}
private void drawLine(MultiVector line, Color color)
{
MultiVector t, d;
IPNS.GetLineParams(line, out t, out d);
MultiVector rotAxis = MultiVector.CrossProduct(Basis.E3, d);
double rotAngle = Math.Acos(d.E3);
if (rotAxis == MultiVector.Zero)
{
rotAxis = Basis.E1;
rotAngle = 0.0;
}
GL.Color3(color);
GL.PushMatrix();
GL.Translate(t.E1, t.E2, t.E3);
GL.Rotate(MathHelper.RadiansToDegrees(rotAngle), rotAxis.E1, rotAxis.E2, rotAxis.E3);
drawModel(lineVbo);
GL.PopMatrix();
}
private void drawVector(MultiVector vector, Color color)
{
GL.Color3(color);
MultiVector rotAxis = MultiVector.CrossProduct(Basis.E3, vector);
double rotAngle = Math.Acos(vector.E3 / vector.Length);;
if (rotAxis == MultiVector.Zero)
{
rotAxis = Basis.E1;
rotAngle = 0.0;
}
double length = vector.Length;
GL.PushMatrix();
GL.Rotate(MathHelper.RadiansToDegrees(rotAngle), rotAxis.E1, rotAxis.E2, rotAxis.E3);
GL.Scale(length, length, length);
drawModel(vectorLineVbo);
GL.PopMatrix();
GL.PushMatrix();
GL.Translate(vector.E1, vector.E2, vector.E3);
GL.Rotate(MathHelper.RadiansToDegrees(rotAngle), rotAxis.E1, rotAxis.E2, rotAxis.E3);
drawModel(vectorArrowVbo);
GL.PopMatrix();
}
