What do the Crosses and Squares mean when Marking a Point in the rayCloud? - PIX4Dmapper

This article explains the visual differences between Crosses and Squares in the rayCloud in PIX4Dmapper.

When marking a point in the rayCloud in more than two images:

The clicked position appears with a yellow cross and circle.
The size of the yellow circle indicates the zoom level with which the marking has been done. Points that have been marked on a high zoom level are taken more into account than points that have been marked on a low zoom level.

After clicking on 2 images, a green cross appears on all images.
The green cross represents the reprojection of the estimated 3D point on all images and is computed (after having marked 2 images) according to the clicks already made for the point.

The clicked position is surrounded by a blue square.
The size of the square is equal to the size of the pixel of the image.

After clicking on 2 images, a green cross appears on all images.
The green cross is surrounded by a purple square, which represents a pixel around the reprojection of the estimated 3D point on all images.