An ArcGis geoprocessing tool that calculates the least-cost path from a source to a destination.

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0
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2answers
20 views

Handling 2s in cost path analysis output?

I am trying to compute shortest distance to stream from various point locations on the landscape. I am using the cost path tool in spatial analyst to do this . I am using a DEM as a cost distance ...
3
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1answer
147 views

How to calculate the distance of sites to riverways

How do you calculate the distance of about 10 sites scattered across a region to bodies of water (rivers and lakes) using ArcGIS 10.1? I have the lat/lon coordinates of the 10 sites as a point ...
2
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1answer
206 views

Raster map in different zone () than region ()

I am new to QGIS (just installed QGIS 2.0.1) and am having problems running any spatial analysis tools. I followed the instructions on how to call GRASS tools into QGIS, but when I try to run the ...
0
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1answer
17 views

whereClause syntax for Cost Distance parameter

I am looking to create a sql expression regarding point feature class and selection based on 'Name' field to pass to arcpy.sa.CostDistance() param[0]. similat to: savepath = env.workspace = ...
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0answers
406 views

ArcGIS Cost Path Analysis - How Is Arcpy Cost Path Analysis Tool So Much Faster Than ArcObjects

Although I love slinging some python to create geoprocessing scripts/services, I was under the impression that using ArcObjects to do the equivalent operation(s) will have better performance. I've ...
2
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0answers
49 views

How to create cost surface for least cost water transport analysis?

I am working on a project to derive least cost pathways between sites by dug out canoe travel. Has anyone worked on a similar project or found a function like the Tobler hiking function that can be ...
2
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0answers
58 views

Get distance after path distance allocation

I use ArcGIS 10.1 in Windows XP. I have a two point feature data sets One containing a single point P1 and another containing multiple points Pm. I computed the minimum-distance path from P1 to each ...
2
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0answers
153 views

How to convert a raster (array) to a NetworkX graph and do a * search?

I want to use a slope-raster for a a_star path analysis in NetworkX. I am using Python for this project. My test raster looks like this First I read in the raster with GDAL input_raster = ...
2
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0answers
239 views

Cost Path tool in script randomly throws error

I have a script tool that is creating a least cost path for sets of points using a Cursor. When applied, the script runs great, except every so often the tool is stopped because there is an error in ...
2
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0answers
143 views

ArcMAP path distance function handling of polygon and raster inputs

I am using a path distance function to calculate distances from a set of source cells on a land use raster. Unfortunately, my land use raster and my other inputs have different cell sizes. The land ...
2
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0answers
127 views

Plot the Shortest Paths in a Grid without any clash at a point of time

The efficient algorithm needs to be done and proved for the best solution for the given problem: User inputs: (#) Size of the NxN Grid. (N); (#) No. of Paths: Z; (#) Source and Destination ...
2
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0answers
59 views

How do I make a path cross the most possible classes in a raster?

I want to create a function and possibly use Arcmap tools to create something similar to Cost Path. Instead of just choosing the LCP, it must cross through the most different integers. Let's say I ...
1
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0answers
35 views

Implement a least cost path in a graph

I am trying to produce a routing functionality in a web-GIS that, given a start and an end point, will retrieve the least cost path taking into account points along edges representing major costs, ...
1
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0answers
107 views

Python Script Producing Empty Cost Path Rasters

I'm trying to run a script that will create cost paths for a large number of randomly generated points then assign the cost to those points. But my script is beginning to create cost path rasters ...
1
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0answers
169 views

How to Create Multiple Start and Destination Cost Paths?

I have a suitability matrix which was created in model builder based on elevation data and multiple start data points and end data points representing schools. I'd like to link all the schools up ...
0
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0answers
33 views

What is an anisotropic cost-of-passage map called in ArcGIS 10.1

I am trying to make sense of a few sources of information. In Geographic Information Systems in Archaeology Conolly and Lake (2006: 214-224) provide a sort of "step-by-step" procedure for creating ...
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0answers
13 views

What happens if raster overlapping when I run cost distance?

I'm having problem with the cost distance tool in Arcmap. I need to use cost distance to find out the cost of having to move from a subway station to a green area. But the resulting cost distance ...
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0answers
42 views

Cost-Distance Tool not producing logical answer

I am working on creating a cost catchment based on Tobler's equation in ArcGIS10.1. I feel confident in my cost surface; it produces a raster where each cell equals the time in hours that it would ...
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0answers
28 views

RemapValue Usage

I successfully produce and empty cost raster at the end of this script. I am fairly confident it has something to do with RemapValue parameters? Does anyone know why my out put cost distance raster ...
0
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0answers
40 views

GDAL - least cost path analysis height data

I would like to use Pythons GDAL bindings to find the least cost path through an array and then show the route on top of the original array. I am using DEM data and would like the slope to be taken ...
0
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0answers
40 views

Skimage graph route to multiple destinations

I want to route through an array with skimage.graph.route_through_array. I have one start point and multiple destination points. I am wondering if it is possible to insert the multiple destination ...
0
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0answers
49 views

How specify a corridor minwidth?

I’m trying to make a corridor between two substations with ArcGIS, a macro corridor and a micro corridor. I have two questions in this respect and would be grateful for your suggestions. a) How can ...