finding mirror image

[mdsalman2003]

If I want to find if one half of an entity is the mirror image of its another half How to do that is their some built in function otherwise

give some algorithmic guidance.

[rkmcswain]

Define "Object".
Are you talking about a block, or basic entities such as a line, arc, polyline?

[mdsalman2003]

I mean simple entities such as polylines.

Thanks.

[irneb]

Going to be a bit tricky ... seeing as mirror could be around any line, not just vertical / horizontal (even in 3d space).