private void updateCameraTranslation(MotionEvent event) {
PointF dragTranslation = new PointF();
dragTranslation.set(
event.getX() - getCurrentDragStart().x, event.getY() - getCurrentDragStart().y);
CanvasCamera camera = getCanvasCamera();
dragTranslation.x /= camera.getScale();
dragTranslation.y /= camera.getScale();
PointF startTranslation = getCameraDragStartTranslation();
camera.setTranslation(
dragTranslation.x + startTranslation.x, dragTranslation.y + startTranslation.y);
}
public PointF getAsAbsoluteCoordinate(float x, float y) {
CanvasCamera camera = getCanvasCamera();
return camera.getAsUntransformedCoordinates(x, y);
}