code: def get_image_grid(self):
      xmin = (0.5 - self.cx) / self.fx
      xmax = (self.width - 0.5 - self.cx) / self.fx
      ymin = (0.5 - self.cy) / self.fy
      ymax = (self.height - 0.5 - self.cy) / self.fy
      return np.meshgrid(
          np.linspace(xmin, xmax, self.width),
          np.linspace(ymin, ymax, self.height),
      )
  
file_path: nerfies/third_party/pycolmap/pycolmap/camera.py
imports: import numpy
  from scipy.optimize import root
label_desc: Use image node_id 11 for calling the Camera obj's underlying member method code with example usage: obj.get_image_grid() and returns: np