private void drawMidpoints()
	{
		if (model.getChordalAxisPoints() == null)
			return;
		GL11.glLineWidth(2.0f);
		GL11.glColor3d(0.6, 0.2, 0.3);
		List<TriangulationPoint> points;
		if(!showPruned)
			points = model.getChordalAxisPoints();
		else
			points = model.getPrunedChordalAxisPoints();
		for (TriangulationPoint midpoint : points)
		{
			DrawShape.sphere(midpoint.getX(), midpoint.getY(), 0.0, 0.02);
		}
	}