Point ID consistent after Delete

POPs
1

image
image1920×1775 393 KB

Is there a way I can extract a consistent Point ID before and after a Delete OP? What I’d like to do is use a field to select Points, and report back the IDs of the selected points. Later I want to do a lookup against a Table DAT so I can display the a 3D Text Geo at the point’s coords.

In this screenshot, I thought I could delete the points and compare the POPToDAT tables to identify which point IDs were missing and use that as the lookup table. When I use the PopViewer and display the IDs they reset their index after the delete process.

2

Hi Brent,

What we call index in POP to DAT is really just the point number, so it always goes from 0 → numpoints -1

If you want a permanent identifier you need to add it yourself.
An easy way is with the Math POP and the built-in attribute _PointI (it’s generated on the fly)

See attached, I called the new attribute uniqueId, let me know if that answers your question

UniqueIdPOP.toe (3.7 KB)

1 Like
3

Thank you!

This is exactly what I was looking for. Ok, let me see what I can do with this now.

1 Like