Polyline to Polygon on 100k+ feature class objects, ellipses

JoshuaTrampier — Tue, 31 Jul 2012 18:01:09 GMT

Hello,
I have several polyline feature classes, each with about 30k to 100+k overlapping ellipse objects. These ellipses were derived from point data, using the Table to Ellipse function. Each ellipse polyline is closed. I would like to generate polygons with boundaries identical to each polyline. I seek a programmatic approach, as I may need to perform this operation on several million points in the future. I have a machine with an ArcInfo license.

I have tried several methods, some posted in the ArcGIS forums over the years:
(1) The method posted here is impractical due to the sizes of the datasets. It causes ArcGIS to hang.
http://forums.arcgis.com/threads/54825-Create-Polygon-from-Polyline-and-seperate-polygon-feature

(2) Installing ET GeoWizards or XTools is not possible due to lack of administrative control over my machine. Also, the free versions cannot handle tens of thousands of shapes.
e.g., http://forums.arcgis.com/threads/6786-polyline-to-polygon

(3) Using the FeaturetoPolygon Data Management tool generates thousands of extra useless polygons, since the ellipses are overlapping.

(4) I tried creating a Minimum Bounding Geometry polygon and then clipping it by the polyline, but one needs to clip a polygon with a polygon.

Ideally I would like One ellipse polyline => One ellipse polygon.
For bonus points, I would appreciate a solution that allows me to propagate attributes from the point data all the way up to the ellipse polygon.

Thanks for your help.

Joshua Trampier

Re: Polyline to Polygon on 100k+ feature class objects, ellipses

JoshuaTrampier — Tue, 31 Jul 2012 18:22:21 GMT

Ack - I have sorted my own problem. The Minimum Bounding Geometry parameter I was using was "Rectangle." "Convex_Hull" did the trick. Hopefully, someone else will find this useful.

topic Polyline to Polygon on 100k+ feature class objects, ellipses in Data Management Questions

Polyline to Polygon on 100k+ feature class objects, ellipses

Re: Polyline to Polygon on 100k+ feature class objects, ellipses