fov

readme.md

fov

Created with <3 with dartpad.dev.

main.dart

import "dart:math";

void main() async {
  print(cropFov(1.2299335238804041, 1920, 240));
  print(radianToDegree(cropFov(1.2299335238804041, 1920, 240)));
}

double cropFov(
    double fov, // Field of view of the camera
    int y, // Full height of the image in pixels
    int crop_y // How many pixels have been cropped from the top of the image (the bottom must match but just enter one value, not the sum of both)
    ) {
  // all angles in radians
  var fov_yh = fov / 2;
  print("fov_y: $fov");
  print("fov_yh: $fov_yh");
  print("y: $y");
  print("crop_y: $crop_y");
  final fov_y_crop = atan((tan(fov_yh) * (y / 2 - crop_y)) / (y / 2)) * 2;
  return fov_y_crop;
}


double degreeToRadian(double degree) {
  return degree * pi / 180;
}

double radianToDegree(double radian) {
  return radian * 180 / pi;
}