void enable_circle_indicator(bool enable)
{
if (enable == false && circle_indicator == null)
{
return;
}
if (enable && circle_indicator == null)
{
LineSet lines = new LineSet();
lines.UseFixedNormal = true;
lines.FixedNormal = Vector3f.AxisY;
DCurve3 curve = new DCurve3(Polygon2d.MakeCircle(gizmoInitialRadius, 64), 0, 2);
lines.Curves.Add(curve);
lines.Width = 1.0f;
lines.WidthType = LineWidthType.Pixel;
lines.Segments.Add(
new Segment3d(Vector3d.Zero, gizmoInitialRadius * diagonals[nRotationAxis]));
lines.Color = Colorf.DimGrey;
circle_indicator = new fLineSetGameObject(new GameObject(), lines, "circle");
circle_indicator.SetLayer(FPlatform.WidgetOverlayLayer, true);
circle_indicator.SetLocalRotation(Quaternionf.FromTo(Vector3f.AxisY, Frame3f.Identity.GetAxis(nRotationAxis)));
RootGameObject.AddChild(circle_indicator, false);
}
circle_indicator.SetVisible(enable);
}
void update_snap_indicator(float fAngle, bool on_snap)
{
Quaternionf planeRotation = new Quaternionf(Vector3f.AxisY, fAngle * MathUtil.Rad2Degf);
Quaternionf alignAxisRotation = Quaternionf.FromTo(Vector3f.AxisY, Frame3f.Identity.GetAxis(nRotationAxis));
snap_indicator.SetLocalRotation(alignAxisRotation * planeRotation);
snap_indicator.SafeUpdateLines((lines) => {
lines.Color.a = (on_snap) ? 1.0f : 0.15f;
});
}
