getCoordinates method

Vector3 getCoordinates(
  1. double pixelX,
  2. double pixelY
)

Converts the pixel coordinates (pixelX, pixelY) to the manim coordinates The result is returned as a Vector3, but used as a vector2 containing the coordinates x and y of the corresponding point @param pixelX from 0 to pixel width @param pixelY from 0 to pixel height

Implementation

Vector3 getCoordinates(double pixelX, double pixelY) {
  // map pixelX which can be between 0 and pixelWidth
  // to between -frameWidth / 2 and frameWidth / 2
  var sx = mapValue(pixelX, 0, camera.pixelWidth, -camera.frameWidth / 2,
      camera.frameWidth / 2);

  // same as the x coordinate except that the screen coordinates
  // and the manim coordinates have an inverted y axis
  var sy = mapValue(pixelY, camera.pixelHeight, 0, -camera.frameHeight / 2,
      camera.frameHeight / 2);

  return Vector3(sx, sy, 0) + camera.frameCenter;
}