is there a HDK function that will let me input coordinates and see if there is an existing point at those (or close enough) coordinates?

Basically I just want to use the existing point offset instead of creating a new point.

Take a look in GEO/GEO_PointTree.h. You can build a structure that will allow you to perform such queries.

originally worded this badly, but i want to input coordinates and see if a point with those coordinates already exists. if it does i want the point offset.

what graham said .

1) fill your existing points into the point-tree
2) ask the point tree to give you the next point based on your coordinate
3) check if that point has the same location

Seb

If you're just doing it once, your fastest bet is actually to search through the points sequentially, in parallel, using GA_ROPageHandleV3 to access the point positions, since constructing a point tree takes quite a bit of time in comparison. If you're doing it a bunch of times, GEO_PointTreeGAOffset, like the posts above recommended, though adding new points dynamically to the tree may or may not get expensive; you'll have to experiment. :wink: