An ArcGis geoprocessing tool that calculates the least-cost path from a source to a destination.
14
votes
3answers
504 views
How to deal with bridges and tunnels when modeling raster least cost paths?
I'm currently using ArcGIS 10 Spatial Analyst's Cost Path tool to model pedestrian routes. I have sidewalks, fences, buildings and a ton of pedestrian scale features, all combined into a cost surface ...
11
votes
0answers
382 views
Incorporating Length of Route Value into Cost Evaluator Function (ArcGIS Network Analyst)?
A friend and I (who more frequently than I posts on this board) are creating a walking network and we have run in to a snag. We would like to attribute a cost evaluator to our network dataset using a ...
6
votes
3answers
582 views
Find a proper path between two nodes in a grid
This question is about finding a proper path (route) between two nodes (P,Q) in a grid (i.e., graph, network, ...). In our concept, we define a path proper (nice) if it is the most similar* to the ...
6
votes
1answer
328 views
Problem analysing movement using cost surfaces (involving ArcGIS's Path Distance-tool)
I would like to analyse hypothetical movement (on foot) in a landscape as based on energy expenditure, but I have run into some trouble that I am hoping that you could help me with. I have tried to do ...
6
votes
1answer
333 views
How do I find least cost path over a DEM based on slope magnitude and direction?
What sort of algorithms can I use to find a least cost path through a DEM where it costs more to traverse a cell going downhill or uphill than it does to follow the contour of the land?
All the ...
5
votes
4answers
818 views
Looking for a fast, open-source raster cost-distance function to use in code
I've been scouring the internet for a fast, open-source cost-distance function that I can embed inside my code. The functionality should basically work like the ArcGIS implementation where I can ...
4
votes
4answers
1k views
Using a list of geographic locations, and determining the X closest locations to a user-defined location
I've got a list of geographical locations in an Excel spreadsheet. I want users to be able to search for a user-defined location, and then have the X number of closest locations from the list pulled ...
4
votes
0answers
52 views
Is r.cost equivalent to diffusion interpolation with barriers?
I want to perform interpolation using cost distances rather than euclidean distances similar to Greenberg et al. (2011). In that paper they use r.cost in GRASS to compute cost distances for each ...
4
votes
0answers
228 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 ...
3
votes
1answer
227 views
GDAL - Perform Simple Least Cost Path Analysis
I am investigating methods to perform a simple least cost path analysis with gdal. By simple, I mean using the slope of a dem as the only cost factor.
I would prefer to do using the python or .net ...
2
votes
1answer
51 views
Finding distance (in time) from nearest point out of 4 along a road network
I have four points representing harbors along the coast. I also have a roads layer that has info on each road segment such as length, speed limit, and travel time.
I calculated travel time with ...
2
votes
0answers
71 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
votes
0answers
74 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
votes
0answers
51 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
vote
0answers
82 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 ...
1
vote
0answers
132 views
Connect points along bathymetry contours
I have a table with start and end point data in each row and need to convert them into lines, but I would like something other than a straight segment.
Ideally, I want to connect the points via a ...
0
votes
0answers
34 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 ...
