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Getting X and Y from a single point object in arcpy

BenjaminSperry1

I am trying to get the X and Y values from the output of the positionAlongLine method.

As far as I can tell it should be a point object so how do I get the XY from that point?

I have found examples of how to do this in a search cursor but that only works with tables, I only have a single point.

new_point = line.positionAlongLine(cur_length, is_percentage)

point_x = new_point.X
point_y = new_point.Y

returns the error: AttributeError: 'PointGeometry' object has no attribute 'X'

Any help would be greatly appreciated.

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Accepted answers

DanPatterson_Retired

Try

new_point.centroid.X‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN></SPAN>

from here

PointGeometry—ArcPy classes | ArcGIS Desktop

All comments

DanPatterson_Retired

Try

new_point.centroid.X‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN></SPAN>

from here

PointGeometry—ArcPy classes | ArcGIS Desktop

BenjaminSperry1

Thank you very much Dan. That worked perfectly.

DanPatterson_Retired

No problem... it is one of those quirky things, but think of it as a property of the object... it helped me get over it a long time ago

XanderBakker

To add to the explanation by Dan Patterson here a little more about the difference between Point and PointGeometry objects. The Point object is used to store the X, Y, and optionally the Z and M values of a point. The Point object iis used to construct geometries, like PointGeometry, Polyline, Polygon and Multipoint. See example below:

<SPAN class="keyword token">import</SPAN> arcpy

<SPAN class="comment token"># create a Point with just X and Y (Long and Lat)</SPAN>
pnt <SPAN class="operator token">=</SPAN> arcpy<SPAN class="punctuation token">.</SPAN>Point<SPAN class="punctuation token">(</SPAN><SPAN class="operator token">-</SPAN><SPAN class="number token">75.569461</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="number token">6.216609</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="keyword token">print</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">"X (pnt) : {}"</SPAN><SPAN class="punctuation token">.</SPAN>format<SPAN class="punctuation token">(</SPAN>pnt<SPAN class="punctuation token">.</SPAN>X<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN>

<SPAN class="comment token"># create PointGeometry using WGS1984</SPAN>
sr <SPAN class="operator token">=</SPAN> arcpy<SPAN class="punctuation token">.</SPAN>SpatialReference<SPAN class="punctuation token">(</SPAN><SPAN class="number token">4326</SPAN><SPAN class="punctuation token">)</SPAN>
pntg <SPAN class="operator token">=</SPAN> arcpy<SPAN class="punctuation token">.</SPAN>PointGeometry<SPAN class="punctuation token">(</SPAN>pnt<SPAN class="punctuation token">,</SPAN> sr<SPAN class="punctuation token">)</SPAN>

<SPAN class="comment token"># retrieve the X property of the PointGeometry (I normally use firstPoint)</SPAN>
<SPAN class="keyword token">print</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">"X (pntg): {}"</SPAN><SPAN class="punctuation token">.</SPAN>format<SPAN class="punctuation token">(</SPAN>pntg<SPAN class="punctuation token">.</SPAN>firstPoint<SPAN class="punctuation token">.</SPAN>X<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

This will print:

X (pnt) : -75.569461
X (pntg): -75.569461<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

To construct the Polyline, Polygon and Multipoint geometries you will have to provide an array of Points. See example below:

<SPAN class="keyword token">import</SPAN> arcpy

<SPAN class="comment token"># simple example, create two Points with just X and Y (Long and Lat)</SPAN>
pnt1 <SPAN class="operator token">=</SPAN> arcpy<SPAN class="punctuation token">.</SPAN>Point<SPAN class="punctuation token">(</SPAN><SPAN class="operator token">-</SPAN><SPAN class="number token">75.569461</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="number token">6.216609</SPAN><SPAN class="punctuation token">)</SPAN>
pnt2 <SPAN class="operator token">=</SPAN> arcpy<SPAN class="punctuation token">.</SPAN>Point<SPAN class="punctuation token">(</SPAN><SPAN class="operator token">-</SPAN><SPAN class="number token">74.051171</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="number token">4.673431</SPAN><SPAN class="punctuation token">)</SPAN>

<SPAN class="comment token"># create Polyline using WGS1984</SPAN>
sr <SPAN class="operator token">=</SPAN> arcpy<SPAN class="punctuation token">.</SPAN>SpatialReference<SPAN class="punctuation token">(</SPAN><SPAN class="number token">4326</SPAN><SPAN class="punctuation token">)</SPAN>
polyline <SPAN class="operator token">=</SPAN> arcpy<SPAN class="punctuation token">.</SPAN>Polyline<SPAN class="punctuation token">(</SPAN>arcpy<SPAN class="punctuation token">.</SPAN>Array<SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">[</SPAN>pnt1<SPAN class="punctuation token">,</SPAN> pnt2<SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">,</SPAN> sr<SPAN class="punctuation token">)</SPAN>

<SPAN class="comment token"># retrieve some coordinate values</SPAN>
<SPAN class="keyword token">print</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">"X (firstPoint): {}"</SPAN><SPAN class="punctuation token">.</SPAN>format<SPAN class="punctuation token">(</SPAN>polyline<SPAN class="punctuation token">.</SPAN>firstPoint<SPAN class="punctuation token">.</SPAN>X<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="keyword token">print</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">"Y (lastPoint) : {}"</SPAN><SPAN class="punctuation token">.</SPAN>format<SPAN class="punctuation token">(</SPAN>polyline<SPAN class="punctuation token">.</SPAN>lastPoint<SPAN class="punctuation token">.</SPAN>Y<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN>

<SPAN class="comment token"># loop through pnts in Polyline</SPAN>
<SPAN class="keyword token">for</SPAN> part <SPAN class="keyword token">in</SPAN> polyline<SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">for</SPAN> pnt <SPAN class="keyword token">in</SPAN> part<SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">print</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">" - {}"</SPAN><SPAN class="punctuation token">.</SPAN>format<SPAN class="punctuation token">(</SPAN>pnt<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

When working with 3D and M aware geometries you will have to enable those properties when you construct the geometry. More on this in my blog here: https://community.esri.com/people/xander_bakker/blog/2016/07/08/working-with-3d-and-m-aware-geometries-in-arcpy

Anonymous User

Can you use arcpy.da.searchcursor to get the x,y?

2026-02-04_16-06-01.PNG

apgis16_0-1770239339872.png

apgis16_1-1770239366740.png

XanderBakker

Hi Liran Sun ,

Yes you can. The easiest way would be using the SHAPE@XY token. See:SearchCursor—Data Access module | Documentation

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