SHAPE@XY value are not centroids, instead they are truecentroids.

irfanlatif

I am trying to calculate the centroids of polygons and found SHAPE@XY value are not centroids, instead they are truecentroids.

Script which I have used is.

fc=r'D:\geodb_results\Germany\admin\DE_Brandenburg.shp'

 

lstFieldsList =  ["ID", "SHAPE@XY", "SHAPE@TRUECENTROID"]

with arcpy.da.SearchCursor(fc, lstFieldsList) as searchRows:

    for searchRow in searchRows:

        print searchRow[0],searchRow[1],searchRow[2] 

Result:

120 (13.397784197052292, 52.472906875319225) (13.397784197052292, 52.472906875319225)

I have found the workaround to extract centriods by using SHAPE@centroid.X, SHAPE@centroid.Y.

Shape file is attached for your test.

Is this a bug or I am doing something wrong?

I am using ArcGIS 10.6.1.9270 on Windows Server 2008_DE with service pack 1

Germany.7z.zip

ShengdiZhang_0-1767493994987.png

JoshuaBixby

Definitely a bug, I am seeing the same thing in Pro, but I am also seeing SHAPE@X and SHAPE@Y returning true centroid coordinates.

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<SPAN class="punctuation token">.</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="punctuation token">.</SPAN>
From shape<SPAN class="punctuation token">:</SPAN>
Geometry centroid<SPAN class="punctuation token">:</SPAN> <SPAN class="number token">50</SPAN> <SPAN class="number token">10</SPAN> NaN NaN
Geometry true centroid<SPAN class="punctuation token">:</SPAN> <SPAN class="number token">40.7692307692308</SPAN> <SPAN class="number token">50</SPAN> NaN NaN

From Cursor<SPAN class="punctuation token">:</SPAN>
SHAPE@XY<SPAN class="punctuation token">:</SPAN> <SPAN class="punctuation token">(</SPAN><SPAN class="number token">40.76923076923077</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="number token">50.0</SPAN><SPAN class="punctuation token">)</SPAN>
SHAPE@TRUECENTROID<SPAN class="punctuation token">:</SPAN> <SPAN class="punctuation token">(</SPAN><SPAN class="number token">40.76923076923077</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="number token">50.0</SPAN><SPAN class="punctuation token">)</SPAN>
SHAPE@X<SPAN class="punctuation token">,</SPAN>SHAPE@Y<SPAN class="punctuation token">:</SPAN> <SPAN class="number token">40.76923076923077</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="number token">50.0</SPAN>
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