Questions tagged [cost-path]
A raster-based ArcGIS geoprocessing tool that calculates the least-cost path from a source to a destination over a cost surface.
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Tobler's hiking function in PathDistance ArcGIS 10.3.1
I am working on least cost paths for an archaeological project and I am trying to implement Tobler’s hiking function on ArcGIS 10.3.1 for Desktop.
I am using SRTM 1 arc second global downloaded on ...
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Cost Distance Analyst In QGIS?
Are there any tools, plugins or methods in QGIS which allows for an analysis of the best path between two points using least cost path method? As shown below ArcGIS has several distance tools.
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How to create an OD road distance matrix in QGIS?
I'm looking for the steps required to produce an origin-destination (OD) cost matrix.
What I'm looking for is a matrix of road distances. The distance matrix tool only produces euclidian distances. ...
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Finding Least Cost Path in QGIS?
I'm trying to work out least cost paths in QGIS. I have a DEM and a slope raster extracted from it, and a set of points, between which I want to find the least cost paths. I can find a SAGA plugin, ...
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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 ...
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Least cost path between various points QGIS
Is there an easy way to find the least cost path (LCP) between various points in an open source GIS?
This question has actually already been asked here: How to find a least cost path through several ...
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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 ...
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Road design using Least cost path by longitudinal slope in ArcGIS Desktop?
I have previously asked for help regarding this issue Finding least cost path in QGIS?, but obviously people do not know exactly the problem related to road design
I used the least cost path, this ...
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Automated mapping of cost paths from multiple origin points
I am currently mapping Lahar flows on Montserrat Island (as many have done before!). I have the Cost Distance analysis below, the circle is the origin and the triangle the destination. With a known ...
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Creating Buffer Polygon following Elevations using ArcGIS Desktop?
What I'm looking to do is put a 100 m buffer on a polygon, but rather than the buffer being at a fixed width "as the crow flies" I want it to follow the slopes of my Lidar DEM.
I have ArcMap (with 3D ...
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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 ...
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How to get r.drain to run in QGIS/GRASS?
I use the GRASS GIS extensions for QGIS (QGIS version 2.12.3 with GRASS 6.4) and I have a problem with the r.drain algorithm: I simply cannot make it work with a given starting point as a vector point....
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Merge overlapping polygons to elevation data
I'm new to GIS and need to create a shortest path avoiding buildings. The buildings are represented as polygons in a shapefile.
In QGIS I created a buffer polygon for each building, corresponding the ...
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Cartographic Depth-To-Water method using Cost/Path Distance
I'm having trouble understanding the method for creating a cartographic depth to water index and seek some guidance. I'm using ArcGIS Pro 2.3, but equally happy with ArcMap desktop.
The method is ...
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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 r....
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Performing least cost path analysis on QGIS using permeability scores for 60 points in network?
I have a map that is made up of polygons that apparently cover the whole area without leaving gaps, each representing a field, a wood, a road, a house etc. Each polygon has a score in the attributes ...
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Cost Distance Map in QGIS
My question is very similar to Cost Distance Analyst In QGIS?
However, I'm looking for a means by which I can create a raster displaying the cumulative cost of each pixel to a specified destination ...
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Calculating distance of sites to riverways using ArcGIS Desktop?
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 ...
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How to find a least cost path through several points?
I want to do a least cost path analysis and the least cost path has to go through several different points instead of having just a start and end destination. Is this possible?
I am using ArcGIS 10.2....
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ArcGIS Cost Path Analysis. How to extract the area covered by the many possible shortest paths?
As you can see in the picture ArcGIS Cost Path Analysis produces different results based on chosen direction (blue path direction: start->stop, red path direction: stop->start).
As Cost Path ...
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Unit of costmap created by r.walk
I created a cost map from an elevation map an a (degree) slope map using r.walk (version released on 2015-03-12) in QGIS 2.14.3. According to the documentation the resulting map should display the ...
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C-based implementation of Djikstra's or Fast Marching for QGIS/Python?
I need an algorithm to find least cost paths between points on a discrete grid,
allowing for the direction of transport to affect the cost of transport,
allowing for different modes of ...
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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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Cost Distance interpretation in ArcGIS 10.2
I am using the Cost Distance tool in ArcMap 10.2 to find the how far it is to walk to the closest area of green space along the road network in a town.
I have a input raster of the location of the ...
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Cost Distance Paths in Python
I have a feature dataset with 317 points (UpperPoints) and another with 394 (LowerPoints) points. Now I want to calculate the cost paths as in this example here. However there are multiple files used ...
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Finding least cost path to diffuse resource using ArcGIS Pro?
I am trying to solve a variant of the least cost path analysis problem (http://pro.arcgis.com/en/pro-app/tool-reference/spatial-analyst/creating-the-least-cost-path.htm) where instead of finding the ...
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Which projection when dealing with least-cost path estimation across the Mediterranean area?
I am planning to perform a least-cost path analysis in ArcGIS 10.1 (advanced license) by means of Path Distance tool. I am taking into account a large area, corresponding to the Mediterranean basin. I ...
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QGIS Least Cost Distance Points to Destinations via Roads
I have a layer of starting points (people's residences) and a layer of destination points (stores). I also have a roads layer with a cost field calculated from distance and speed of each segment.
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Finding least cost path in QGIS? [closed]
There are a lot of questions for this method, but does not fit in my case.
I have designed a network of roads, manually, and this is optimal. Max longitudinal grade of roads is 12%. (These are forest ...
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Finding Least Cost Corridor in QGIS?
Does the ArcGIS Pro feature "least cost corridor" have an equivalent module or workflow in QGIS?
http://pro.arcgis.com/en/pro-app/tool-reference/spatial-analyst/creating-a-least-cost-corridor.htm
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How to iterate "Cost Path as Polyline" tool using ArcPy?
I have an optimization GIS problem to be solved. I want to use genetic algorithm to solve it in Python so I have to iterate my script many times. Recently i have realized that "Cost Path as Polyline" ...
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How to create a loop for multiple points with cost distance / cost path in ArcGIS 10.2 in python
I would like to know how to simplify the following code in order to execute it more efficiently than copy paste 82 processes (with a loop I guess?) but I don't know how to do it.
There are 4 main ...
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