How to make rtabmap and rtabmapviz node to not update PointCloud?

[yincanben]

Hi,matlabbe,
    I want to compare before and after update the Pointcloud when a new object is introduced in a previously visited area,I want to set some parameters to add the new  PointCloud to the old , not update the old pointCloud. Can you help me solve it?Thanks.

[matlabbe]

Hi,

Not sure what you want to do "add the new pointcloud to the old, but not update the old pointcloud". It is possible in the GUI to hide/show specific pointclouds, see Window->Show view...->Map Visibility.

cheers