//------------------------------------------------------------------------------
protected void displayEigen()
{
//draw points
if (NumPts > OctreeNode._MINPTS)
{
Vectors c = new Vectors();
Vectors s = new Vectors();
Vectors from = new Vectors();
Vectors to = new Vectors();
c.multiply(_vnorm, _rg._X);
s = _sigma;
//from= s- c;
//to =s +c;
from = Centre - c;
to = Centre + c;
GL_Draw.glLine(from, to, Colour.Blue(), Colour.Blue_Violet());
c.multiply(_eigenvec2, _rg._Y);
from = Centre - c;
to = Centre + c;
//from = s - c;
//to = s + c;
GL_Draw.glLine(from, to, Colour.Gold(), Colour.Green_Yellow());
c.multiply(_eigenvec3, _rg._Z);
from = Centre - c;
to = Centre + c;
//from = s - c;
//to = s + c;
GL_Draw.glLine(from, to, Colour.Red(), Colour.Salmon());
}
}
//------------------------------------------------------------------------------
// Draw()
public void Draw()
{
Gl.glPushMatrix();
Gl.glTranslated(-_Offeset._X, -_Offeset._Y, -_Offeset._Z);
Gl.glDisable(Gl.GL_LIGHTING);
Gl.glGetDoublev(Gl.GL_MODELVIEW_MATRIX, _modelMatrix);
_Ot.Draw();
_Sc.Draw();
GL_Draw.glLine(_ray.position(), _ray.position() + 10.0 * _ray.direction(), Colour.Indian_Red(), Colour.Indian_Red());
Gl.glEnable(Gl.GL_LIGHTING);
Gl.glPopMatrix();
}