-2
votes
0answers
23 views

Rotate object to face player touch [duplicate]

I need to make my sprite to face where the player have touched. I tried like this: public static double FaceObject(RectF position, RectF target) { return ...
2
votes
1answer
117 views

Difference between rotation methods?

My question is in about rotate methods in android.graphics.Camera. In Docs, I saw these comments: public void rotateX (float deg) Since: API Level 1 Applies a rotation transform around the X ...
1
vote
2answers
563 views

Matrix rotation of a rectangle to “face” a given point in 2d

Suppose you have a rectangle centered at point (0, 0) and now I want to rotate it such that it is facing the point (100, 100), how would I do this purely with matrix math? To give some more specifics ...
1
vote
2answers
2k views

Rotate canvas along its center based on user touch - Android

I want to rotate the canvas circularly on its center axis based on user touch. i want to rotate based on center but its rotating based on top left corner . so i am able to see only 1/4 for rotation ...