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Setting radius in Near Table - problems with distances - ideas?

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11-18-2011 11:55 AM
AustinBecker
Deactivated User
I posted this in the "general" forum, but haven't gotten any replies. Thought I'd try here:

I am trying to create a near table that identifies the closest distance between each point in my point dataset and each line in my line dataset. It seems to work, but does not seem to limit by radius. In other words, regardless of the radius I enter in the dialogue box (1 mile, 100 miles, etc), the number of Objects that is created is always the same (999,666). In addition, the near distances (near_dist) are also showing up to about 300 miles, regardless of the radius I choose.

I've also had the problem of distances showing up as unreasonable. Example, I set the radius for 100 miles and the greatest distance in my near table shows up as 1.44.

I am using ArcMap 10.0. Build 2414.

Any thoughts on how to resolve this?

Thanks.

Austin
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10 Replies
DanLee
by Esri Regular Contributor
Esri Regular Contributor
I am glad that you have made progress. But the In_FID all 0s is certainly not right; I have never seen that.

Try using smaller test datasets and see if the issue occurs: select 5 points from your projected feature class and run Copy Features to put them in a new point_fc; select 5 projected lines and run Copy Features to save them in a new line_fc. Are the OBJECTIDs of point_fc in sequence? Does Generate Near Table give you correct results using point_fc and line_fc? Does Near tool give you correct results?

If the problem can be reproduced using the small datasets (points and lines), could you post the test data?
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