A viewshed is an area that is visible from a specific location.
4
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3answers
92 views
Run Viewshed on only one feature at a time in a shapefile
I have over 100 features in a shapefile and I want to create individual viewsheds for each and then run processes on each of those resulting viewsheds in ArcGIS using Python.
Is it possible to write ...
4
votes
1answer
75 views
Create points around the edge of viewshed results?
Is there a tool or module, or multiple tools, in ArcGIS that will allow you to automate the creation of points around the outer edges of a viewshed?
What I am trying to do is gather data about the ...
12
votes
2answers
188 views
Propose a new location for Watch Tower using Viewshed Analysis
I want to suggest location for new watch tower in a forest area, but i am confused , on what criteria i can propose a best location. If i am taking DEM , slope and distance from existing tower , ...
9
votes
1answer
126 views
How to find the buildings (polygons) a user can see from a given location (point) and orientation (angle range)?
I would like to retrieve the set of buildings I can see from a given location (point -lat,lng) and orientation (interval of angles) + certainly with a given depth (e.g. 100 meters). Ideally I would ...
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vote
2answers
60 views
viewshed analysis for observers wearing visors?
I'm starting with a DEM, and looking to identify every point that can be directly "seen" from any point in a particular polygon on an overlaid layer defining an area on that DEM - like any other ...
3
votes
1answer
63 views
Error in viewshed (arcgis)
I have a point data as observer point with field attributes for Spot, offsetA, offsetB, Radius1, Radius2, Vert1, Vert2, Azimuth1 and Azimuth 2. For the raster file- a dsm with elevation data. They ...
4
votes
1answer
68 views
Sum raster data visible from given point, by proportion of view
I am wondering if there is a tool that does the following (preferably in Arc but other options considered).
Simple example: what proportion of the view from a given point on the landscape is occupied ...
3
votes
1answer
105 views
What's the difference between Viewshed and Observer Points?
Can someone explain to me in layman's terms the difference between Viewshed and Observer Points?
Thanks.
2
votes
2answers
150 views
Can I perform a viewshed analysis with ArcGIS Desktop 10.1 - Standard License?
Is there a way to perform a Viewshed Analysis with the Standard license?
If not, what is the difference (if any) between:
Viewshed with (Spatial Analyst)-
...
3
votes
1answer
316 views
Viewshed analysis problem Arcgis 10
I am trying to find which areas a camera can view from a certain point inside a given circle (known radius).
I tried to use the Viewshed tool Arcmap provides in order to do that. I read here that I ...
4
votes
1answer
76 views
Help installing add-on in GRASS, I get an error message
My Grass gives me this error message, Grass_info_error(4816,1):'make' required. Please install 'make' first. This happens when I attempt to fetch an add-on (r.viewshed). What am I doing wrong? and ...
9
votes
2answers
441 views
How to implement viewshed calculation?
I'm looking for a way to implement visibility (aka viewshed). I found a previous GIS SE question that suggested a few GIS applications (not what I need - I'm trying to embed the calculations), and ...
3
votes
2answers
151 views
How to use Collect Values with Cell Statistics in iterative model in ModelBuilder?
I'm trying to run multiple viewsheds in ArcGIS 10, reclassify these rasters and finally add them together. This is for a wind farm project where we need to repeat multiple viewsheds from various ...
1
vote
1answer
215 views
Using SRTM data, how to get the coordinates of the peaks visible from a location?
Using SRTM data and a coordinate-altitude database of the peaks, I want to get the coordinates of the visible peaks from my location. I want to make an application similar to this.
How is this ...
2
votes
3answers
489 views
Viewshed Analysis With GDAL
I am looking to perform a simple (one observer location) viewshed analysis on a standard DEM using GDAL (either python or .NET bindings).
I have searched, but haven't found any readily available ...
3
votes
1answer
142 views
SAGA-GIS:Viewshed creation from SHP instead of interactively?
I am using Saga-GIS to calculate a viewshed from a single point. I can do this with the interactive module, (terrain analysis > Lighting > visibility (single point) interactive) but how do I do it ...
5
votes
2answers
1k views
Viewsheds and Observer Points in ArcGIS Spatial analyst
I am trying to understand the viewshed and observer points tool in spatial analyst.
I want to show which areas of land can see a wind turbine, or put another way, from where can the wind turbine be ...
12
votes
2answers
1k views
Visual Impact Assessment in QGIS or GRASS
Is it possible using QGIS or GRASS to perform a Zone of Visual Impact assessment? E.g. where can a 100m high structure be seen at a viewing height of 1.8m within 30km, taking into account elevation ...
