docs: public void getCameraMatrix(int view , DMatrixRMaj cameraMatrix ) {
  		cameraMatrix.reshape(3,4);
  		CommonOps_DDRM.extract(P,view*3,0,cameraMatrix);
  
  		for (int col = 0; col < 4; col++) {
  			cameraMatrix.data[cameraMatrix.getIndex(0,col)] *= pixelScale;
  			cameraMatrix.data[cameraMatrix.getIndex(1,col)] *= pixelScale;
  		}
  	}