I followed a topic about the way to import a model (.stl or .obj in my case) as a segment through the ‘Add data’ window of importation. The segmentation is well visible in my data and in the segments of this volume but although the visibility is toggled ‘on’ for the slices and the 3D view, nothing is visible. I clicked the ‘specify geometry’, selected the model/segmentation and set the spacing to 1 but do not a segment that I can see and edit.
Do you read something that sounds like a familiar mistake?
I also try some masking and logical operators techniques and I had understood that the label maps could not share a voxel, but that the segments could overlap. Therefore I am surprised to notice that every voxel used by one segment is automatically substracted from the other.