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distance between different points

Lizhang1

I have a question for calculation of different points in a layer and need to export the results of distance matrix in a *.csv document with VBA & ArcObjects. (I Have the map layer of points (vector data) and the attribute table of the points.)
Some one has ever suggested me the interface, but I am still lost, since I am a real beginner and only have some unclear conception. Could anyone help me to write the code that I can copy and use it?
Thanks very much!

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sameerpuppal

I am writing code with VBA for distance between 150 points to 2 source points, which are vector data and on two layers. How can I define the source points? how to use IProximityOperator.ReturnDistance for the calculation?

Thanks.

Hi,

Also instead of using IproximityOperator, you can directly use a ILine to get distance between two points, you can set from point and to point for a ILine Object and get Length from its property directly.

Regards,
Sameer Puppal
GIS Developer
Mahindra Satyam, India

sameerpuppal

Hi,

If you want euclidean distances of each point to all other points in a Featureclass then same can be done by OD Matrix which is available in Network Analyst. The same can be called programatically too.

Check this link : http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//00470000004r000000

Hope this helps, Best Luck

Regards,
Sameer Puppal
GIS Developer
Mahindra Satyam, India

Lizhang1

I am writing code in VBA to calculate distances between 150 points and 2 source points which are in different layers, but I am unclear how to use the array. Could anyone give me a hand? Thanks,

Lizhang1

I am using VBA for the code and need to store the calculation result in the existing attribute table or in a new table. I am seeking for help for the code.

Thanks.

Lizhang1

I am writing code with VBA for distance between 150 points to 2 source points, which are vector data and on two layers. How can I define the source points? how to use IProximityOperator.ReturnDistance for the calculation?

Thanks.

Lizhang1

I am writing code for distance between 150 points to 2 source points, which are vector data and on two layers. How can I define the source points? how to use IProximityOperator.ReturnDistance for the calculation?

Thanks.

nicogis

if you have an arcinfo license you can use Point Distance http://help.arcgis.com/en/arcgisdesktop/10.0/help/0008/00080000001r000000.htm

Use same fc class for in_features and near_features. You also can supply a radious if you need matrix of points with distance < radius. Remember that if you have 1,000 points, then the output table can contain one million records. If you set a radius you could have many fewer records.

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