topic Re: Least cost path unique shp for origins/destinations in ArcGIS Spatial Analyst Questions

Least cost path unique shp for origins/destinations

RobertoFilloramo — Wed, 17 Jan 2018 21:56:17 GMT

Hi, everyboby.... I have several point in a unique shp file (I use arcmap), I would calculate the cost path (so the best rout according to the landscape surface) between all the same points each other. Is it possibile? How can I use the same shp as origins and destinations points? Or is it necessary to split the point in order to use them individually as origin while the unique shp as destination? thank you in advance for your time. best regards.

Re: Least cost path unique shp for origins/destinations

DanPatterson_Retired — Sun, 21 Jan 2018 20:19:51 GMT

There are all kinds of options http://pro.arcgis.com/en/pro-app/tool-reference/spatial-analyst/creating-the-least-cost-path.htm

You haven't specified whether you have the appropriate license or whether you have established the cost surface. Each origin will need to be processed individually since the accumulative costs need to be calculated from there. The paths can go to many destinations. In short, you will need to batch the whole process

Re: Least cost path unique shp for origins/destinations

RobertoFilloramo — Sun, 21 Jan 2018 21:39:25 GMT

Dear Dan Patterson‌,

thank you for your reply, at the moment I established the cost distance, cost back link (using the tool slope in surface for both) and cost path selecting "each cell" . All these steps I made for all the points individually, obtaining the cost path data. I tried to apply this iter tool to the unique shp file as origins/destinations in order to make all this faster yet (of course) Arcmap calculates only the return path for the same point, so I have not a path or the several paths between the point each other. Therefore, I was wondering if there was a method to obtain all the paths without necessarily make all those steps individually. I hope my explanation was clear.

Thank you

Re: Least cost path unique shp for origins/destinations

DanPatterson_Retired — Sun, 21 Jan 2018 23:44:30 GMT

The best visuals for how the costs and accumulative costs from multiple source cells is given in the Pro documentation

http://pro.arcgis.com/en/pro-app/tool-reference/spatial-analyst/how-the-cost-distance-tools-work.htm

You have source cells that are also destinations which really isn't going to help you. It sounds like your workflow could be implemented in modelbuilder. I didn't see any on the Code Sharing site but you might want to try some other keywords as a search.

Re: Least cost path unique shp for origins/destinations

RobertoFilloramo — Mon, 22 Jan 2018 09:50:27 GMT

Dear Dan_Patterson‌,

I will read the link that you suggested me.

Thank you