private static void DrawBoundNodesCore(CanvasDrawingSession drawingSession, Vector2 leftTop, Vector2 rightTop, Vector2 rightBottom, Vector2 leftBottom, Windows.UI.Color accentColor, bool disabledRadian)
{
// Line
CanvasDrawingSessionExtensions.DrawBoundCore(drawingSession, leftTop, rightTop, rightBottom, leftBottom, accentColor);
// Center
Vector2 centerLeft = (leftTop + leftBottom) / 2;
Vector2 centerTop = (leftTop + rightTop) / 2;
Vector2 centerRight = (rightTop + rightBottom) / 2;
Vector2 centerBottom = (leftBottom + rightBottom) / 2;
// Scale2
drawingSession.DrawNode2(leftTop, accentColor);
drawingSession.DrawNode2(rightTop, accentColor);
drawingSession.DrawNode2(rightBottom, accentColor);
drawingSession.DrawNode2(leftBottom, accentColor);
if (disabledRadian == false)
{
// Outside
Vector2 outsideLeft = Math.GetOutsidePointInTransformer(centerLeft, centerRight);
Vector2 outsideTop = Math.GetOutsidePointInTransformer(centerTop, centerBottom);
Vector2 outsideRight = Math.GetOutsidePointInTransformer(centerRight, centerLeft);
Vector2 outsideBottom = Math.GetOutsidePointInTransformer(centerBottom, centerTop);
// Radian
drawingSession.DrawThickLine(outsideTop, centerTop);
drawingSession.DrawNode(outsideTop, accentColor);
// Skew
// drawingSession.DrawNode2(outsideTop, accentColor);
// drawingSession.DrawNode2(outsideLeft, accentColor);
drawingSession.DrawNode2(outsideRight, accentColor);
drawingSession.DrawNode2(outsideBottom, accentColor);
}
// Scale1
if (Math.OutNodeDistance(centerLeft, centerRight))
{
drawingSession.DrawNode2(centerTop, accentColor);
drawingSession.DrawNode2(centerBottom, accentColor);
}
if (Math.OutNodeDistance(centerTop, centerBottom))
{
drawingSession.DrawNode2(centerLeft, accentColor);
drawingSession.DrawNode2(centerRight, accentColor);
}
}