public override void Render(ViewControl vc)
{
Matrix4F normWorld = GetManipulatorMatrix();
if (normWorld == null)
{
return;
}
Util3D.RenderFlag = BasicRendererFlags.WireFrame | BasicRendererFlags.DisableDepthTest;
Color xcolor = (m_hitRegion == HitRegion.XAxis) ? Color.LightSalmon : Color.Red;
Color ycolor = (m_hitRegion == HitRegion.YAxis) ? Color.LightGreen : Color.Green;
Color Zcolor = (m_hitRegion == HitRegion.ZAxis) ? Color.LightBlue : Color.Blue;
float s;
Util.CalcAxisLengths(vc.Camera, normWorld.Translation, out s);
Vec3F axScale = new Vec3F(s, s, s);
Matrix4F scale = new Matrix4F();
scale.Scale(axScale);
Matrix4F xform = scale * normWorld;
Util3D.DrawCircle(xform, Zcolor);
Matrix4F rot = new Matrix4F();
rot.RotY(MathHelper.PiOver2);
xform = scale * rot * normWorld;
Util3D.DrawCircle(xform, xcolor);
rot.RotX(MathHelper.PiOver2);
xform = scale * rot * normWorld;
Util3D.DrawCircle(xform, ycolor);
}
