The 
Inspection Workbench is designed to give you tools for examination of shapes. It is still in the early stages of development.
- Select two shapes to be compared, preferably that intersect each other.
- Then use the menu Inspection → Visual inspection.
- You will get a colored image showing the deviation between the two shapes.
Alternatively, use the macro 
HighlightDifference to compare two shapes.
⏵ documentation index > Inspection > Workbenches > Inspection Workbench