idea Python: Add Checksum to Graph Elements in ArcGIS CityEngine Ideas https://community.esri.com/t5/arcgis-cityengine-ideas/python-add-checksum-to-graph-elements/idi-p/945406 <HTML><HEAD></HEAD><BODY><P>The concept of a checksum is based on object's property and would be returned as string, is same way python does it with hash(object) or class.__hash__()</P><P></P><P>for instance:</P><P>- its attributes ( key - pair )</P><P>- its geometry</P><P></P><P>where OID value would not be considered, since the OID value is always unique.</P><P></P><P>This would allow to compare two graph elements in two graph layers, for example</P><P></P><PRE class="lia-code-sample line-numbers language-none"><CODE><SPAN class="keyword token">if</SPAN> ce<SPAN class="punctuation token">.</SPAN>computeChecksum<SPAN class="punctuation token">(</SPAN> graphNodeFromLayer1 <SPAN class="punctuation token">)</SPAN> <SPAN class="operator token">==</SPAN> \ &nbsp;&nbsp; ce<SPAN class="punctuation token">.</SPAN>computeChecksum<SPAN class="punctuation token">(</SPAN> graphNodeFromLayer2 <SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">:</SPAN> &nbsp;&nbsp;&nbsp; <SPAN class="keyword token">print</SPAN> <SPAN class="string token">'Yikes'</SPAN> <SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN></CODE></PRE></BODY></HTML> Sun, 12 Dec 2021 11:53:51 GMT deleted-user-F36TjxlqdCoV 2021-12-12T11:53:51Z Python: Add Checksum to Graph Elements https://community.esri.com/t5/arcgis-cityengine-ideas/python-add-checksum-to-graph-elements/idi-p/945406 <HTML><HEAD></HEAD><BODY><P>The concept of a checksum is based on object's property and would be returned as string, is same way python does it with hash(object) or class.__hash__()</P><P></P><P>for instance:</P><P>- its attributes ( key - pair )</P><P>- its geometry</P><P></P><P>where OID value would not be considered, since the OID value is always unique.</P><P></P><P>This would allow to compare two graph elements in two graph layers, for example</P><P></P><PRE class="lia-code-sample line-numbers language-none"><CODE><SPAN class="keyword token">if</SPAN> ce<SPAN class="punctuation token">.</SPAN>computeChecksum<SPAN class="punctuation token">(</SPAN> graphNodeFromLayer1 <SPAN class="punctuation token">)</SPAN> <SPAN class="operator token">==</SPAN> \ &nbsp;&nbsp; ce<SPAN class="punctuation token">.</SPAN>computeChecksum<SPAN class="punctuation token">(</SPAN> graphNodeFromLayer2 <SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">:</SPAN> &nbsp;&nbsp;&nbsp; <SPAN class="keyword token">print</SPAN> <SPAN class="string token">'Yikes'</SPAN> <SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN></CODE></PRE></BODY></HTML> Sun, 12 Dec 2021 11:53:51 GMT https://community.esri.com/t5/arcgis-cityengine-ideas/python-add-checksum-to-graph-elements/idi-p/945406 deleted-user-F36TjxlqdCoV 2021-12-12T11:53:51Z