public bool hitTestSimple(String drawID, float testX, float testY) { float left = 0; float right = 0; float top = 0; float bottom = 0; if (!getSimpleRect(drawID, out left, out right, out top, out bottom)) { return(false); } float tx = modelMatrix.invertTransformX(testX); float ty = modelMatrix.invertTransformY(testY); return(left <= tx && tx <= right && top <= ty && ty <= bottom); }