identifying arc segments in python

Question

In python, how would one go about identifying feat. classes that contain arc segments?

Client's oracle system wont' load feat. classes containing arcs, and I don't have ArcInfo to run generalize command!

So, best I can do is identify feat. classes, then manually fix them in ArcMap...thanks.

jskinner · Answer

Truncate how many decimals are returned for the centroid and 'true' centriod.  For example:for fc in lstFCs:
    rows = arcpy.SearchCursor(fc)
    print fc
    for row in rows:
        type = row.Shape
        geom = "%.4f" % type.centroid.X
        truegeom = "%.4f" % type.trueCentroid.X
        if geom != truegeom:
            print row.ObjectID

del row, rows

This should only return your 'true' arcs.

ToddSmith · Answer

This code works great if you want to identify lines that are not straight but I am not having much luck identifying true "arcs."  For example, if you run this code on a pipe feature class it flags almost all of them because there are not too many that are straight.  Any ideas on how to flag only the line segments that were drawn in as an end point arc segment?
Thanks,
Todd

danbecker · Answer

thanks Jake.

Yeah, unfortunately, most of the feat. classes I need to check are polygons