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Merge features

CCWeedcontrol

I need help getting the merge to work on this script. I currently do not get an error but features don't merge.

I need the features of wp1 Mile and wp2 Mile to merge into one feature but merge based on the Buff_DIST feild, the attributes with "1" will be one and the ones with "2" will be another.

I think the reason why i get 12 features in the mile1_2 is because there is multiple parcels in the SP

the code i am working with. Should i be using a Dissolve and if so how we i use the dissolve with my current code?

distances <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">[</SPAN><SPAN class="string token">"1 Mile"</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"2 Mile"</SPAN><SPAN class="punctuation token">]</SPAN>
<SPAN class="keyword token">for</SPAN> distance <SPAN class="keyword token">in</SPAN> distances<SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp; outfile <SPAN class="operator token">=</SPAN> <SPAN class="string token">"wp%s"</SPAN> <SPAN class="operator token">%</SPAN> distance&nbsp; 
&nbsp;&nbsp;&nbsp; arcpy<SPAN class="punctuation token">.</SPAN>Buffer_analysis<SPAN class="punctuation token">(</SPAN>SP<SPAN class="punctuation token">,</SPAN> outfile<SPAN class="punctuation token">,</SPAN> distance<SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"FULL"</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"ROUND"</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">""</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"BUFF_DIST"</SPAN><SPAN class="punctuation token">)</SPAN>
&nbsp;&nbsp;&nbsp; 

out <SPAN class="operator token">=</SPAN> arcpy<SPAN class="punctuation token">.</SPAN>env<SPAN class="punctuation token">.</SPAN>workspace
lyr <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">[</SPAN><SPAN class="string token">"wp1 Mile"</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"wp2 Mile"</SPAN><SPAN class="punctuation token">]</SPAN>
<SPAN class="comment token">#shplist =&nbsp; arcpy.ListFeatureClasses(lyr, "Polygon")</SPAN>

arcpy<SPAN class="punctuation token">.</SPAN>Merge_management<SPAN class="punctuation token">(</SPAN>lyr<SPAN class="punctuation token">,</SPAN> os<SPAN class="punctuation token">.</SPAN>path<SPAN class="punctuation token">.</SPAN>join<SPAN class="punctuation token">(</SPAN>out<SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"mile1_2"</SPAN><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>

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LukeWebb

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


distances <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">[</SPAN><SPAN class="string token">"1 Mile"</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"2 Mile"</SPAN><SPAN class="punctuation token">]</SPAN>
<SPAN class="keyword token">for</SPAN> distance <SPAN class="keyword token">in</SPAN> distances<SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp; outfile <SPAN class="operator token">=</SPAN> <SPAN class="string token">"wp%s"</SPAN> <SPAN class="operator token">%</SPAN> distance
&nbsp;&nbsp;&nbsp; arcpy<SPAN class="punctuation token">.</SPAN>Buffer_analysis<SPAN class="punctuation token">(</SPAN>SP<SPAN class="punctuation token">,</SPAN> outfile<SPAN class="punctuation token">,</SPAN> distance<SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"FULL"</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"ROUND"</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">""</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"BUFF_DIST"</SPAN><SPAN class="punctuation token">)</SPAN>


out <SPAN class="operator token">=</SPAN> arcpy<SPAN class="punctuation token">.</SPAN>env<SPAN class="punctuation token">.</SPAN>workspace
lyr <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">[</SPAN><SPAN class="string token">"wp1 Mile"</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"wp2 Mile"</SPAN><SPAN class="punctuation token">]</SPAN>
<SPAN class="comment token">#shplist =&nbsp; arcpy.ListFeatureClasses(lyr, "Polygon")</SPAN>

merge_out_path <SPAN class="operator token">=</SPAN> os<SPAN class="punctuation token">.</SPAN>path<SPAN class="punctuation token">.</SPAN>join<SPAN class="punctuation token">(</SPAN>out<SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"mile1_2"</SPAN><SPAN class="punctuation token">)</SPAN>
arcpy<SPAN class="punctuation token">.</SPAN>Merge_management<SPAN class="punctuation token">(</SPAN>lyr<SPAN class="punctuation token">,</SPAN> merge_out_path<SPAN class="punctuation token">)</SPAN>

dissolve_out_path <SPAN class="operator token">=</SPAN> os<SPAN class="punctuation token">.</SPAN>path<SPAN class="punctuation token">.</SPAN>join<SPAN class="punctuation token">(</SPAN>out<SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"mile1_2_dissolved"</SPAN><SPAN class="punctuation token">)</SPAN>
arcpy<SPAN class="punctuation token">.</SPAN>Dissolve_management<SPAN class="punctuation token">(</SPAN>merge_out_path<SPAN class="punctuation token">,</SPAN> dissolve_out_path<SPAN class="punctuation token">,</SPAN>&nbsp; <SPAN class="punctuation token">[</SPAN><SPAN class="string token">"BUFF_DIST"</SPAN><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>

This will give you the geometry you want.

You need to work out how to combine the attributes yourself if needed. (e.g. the features in 1 mile, you have multiple Account Numbers + Pins that you now want to store in 1 row.

All comments

LukeWebb

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


distances <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">[</SPAN><SPAN class="string token">"1 Mile"</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"2 Mile"</SPAN><SPAN class="punctuation token">]</SPAN>
<SPAN class="keyword token">for</SPAN> distance <SPAN class="keyword token">in</SPAN> distances<SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp; outfile <SPAN class="operator token">=</SPAN> <SPAN class="string token">"wp%s"</SPAN> <SPAN class="operator token">%</SPAN> distance
&nbsp;&nbsp;&nbsp; arcpy<SPAN class="punctuation token">.</SPAN>Buffer_analysis<SPAN class="punctuation token">(</SPAN>SP<SPAN class="punctuation token">,</SPAN> outfile<SPAN class="punctuation token">,</SPAN> distance<SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"FULL"</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"ROUND"</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">""</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"BUFF_DIST"</SPAN><SPAN class="punctuation token">)</SPAN>


out <SPAN class="operator token">=</SPAN> arcpy<SPAN class="punctuation token">.</SPAN>env<SPAN class="punctuation token">.</SPAN>workspace
lyr <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">[</SPAN><SPAN class="string token">"wp1 Mile"</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"wp2 Mile"</SPAN><SPAN class="punctuation token">]</SPAN>
<SPAN class="comment token">#shplist =&nbsp; arcpy.ListFeatureClasses(lyr, "Polygon")</SPAN>

merge_out_path <SPAN class="operator token">=</SPAN> os<SPAN class="punctuation token">.</SPAN>path<SPAN class="punctuation token">.</SPAN>join<SPAN class="punctuation token">(</SPAN>out<SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"mile1_2"</SPAN><SPAN class="punctuation token">)</SPAN>
arcpy<SPAN class="punctuation token">.</SPAN>Merge_management<SPAN class="punctuation token">(</SPAN>lyr<SPAN class="punctuation token">,</SPAN> merge_out_path<SPAN class="punctuation token">)</SPAN>

dissolve_out_path <SPAN class="operator token">=</SPAN> os<SPAN class="punctuation token">.</SPAN>path<SPAN class="punctuation token">.</SPAN>join<SPAN class="punctuation token">(</SPAN>out<SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"mile1_2_dissolved"</SPAN><SPAN class="punctuation token">)</SPAN>
arcpy<SPAN class="punctuation token">.</SPAN>Dissolve_management<SPAN class="punctuation token">(</SPAN>merge_out_path<SPAN class="punctuation token">,</SPAN> dissolve_out_path<SPAN class="punctuation token">,</SPAN>&nbsp; <SPAN class="punctuation token">[</SPAN><SPAN class="string token">"BUFF_DIST"</SPAN><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>

This will give you the geometry you want.

You need to work out how to combine the attributes yourself if needed. (e.g. the features in 1 mile, you have multiple Account Numbers + Pins that you now want to store in 1 row.

DanPatterson_Retired

some tips on the process

/blogs/dan_patterson/2016/08/31/you-are-not-allowed-to-use-modelbuilder-when-instructors-need-to-get-smarter

/blogs/dan_patterson/2016/08/31/you-are-not-allowed-to-use-geoprocessing-results-the-students-get-smarter

DanPatterson_Retired

do it manually on a copy of the file...

start with Dissolve—Help | ArcGIS for Desktop

then go to the Using the Results window—Help | ArcGIS for Desktop

and copy the result as a python snippet

You will then have the syntax and know if it will work in code

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