A region enclosing a point, line, or polygon at a specified distance.

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41 views

ArcPy to select the location of two layers

I am very new at using python for geoprocessing I have a buffer layer 1 with a distance of 5 from each point I have a buffer layer 2 with a distance of 1 away from each polyline How do I show all ...
4
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1answer
311 views

Selecting points within 2 buffers?

I have 2 huge files of points (hundreds of thousands of points). I need to determine a way to loop through all the points in one file and find all the points in the second file that are only a ...
2
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2answers
394 views

Why does the buffer take up whole screen?

I am trying to create buffers around the Hurricane Sandy path I created in QGIS (points are lat/long). I have both points from each day she was tracted and the line I created from it with Points2One....
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1answer
258 views

Why does Buffering in QGIS fail with this error: Argument 1 has unexpected type 'NoneType'?

I get this error on both 2.10 & 2.12 on two different machines running Ubuntu 14.04 with Python 2.7.6. When trying to run the fixed-distance buffer on a shapefile with polylines I get the ...
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1answer
86 views

How to create a real size buffer around a point in qgis

I have a postgis pointlayer in EPSG:3857, added to a project that is set up with OTF ON to project everything (other layers) to EPSG:3857. In postgis, I defined a view to dynamically create a buffer ...
5
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1answer
3k views

Calculating forest cover within buffer that overlaps with other buffers?

I'm new to ArcGIS. I have a layer showing forest cover in a landscape. I'm trying to create a 5km buffer around every forest patch in the landscape and then calculate the amount of forest within ...
1
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1answer
665 views

How to add a buffer on a point in Open Layers 3

I am trying to add a buffer around some points shown on a map. I have tried to do something similar back in the days of OL2 and I remember it was not straight forward. Is there a simple way to do ...
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0answers
34 views

GeometryEngine Offset or GeodesicBuffer - to get minimal corners.net

We have a a polygon which might have between 8 and 20 points, which we need to draw a boundary around, that is at least 1km around at all points. The restriction is that we can't increase the the ...
2
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1answer
101 views

Grouping points using grouping analysis to look at raster characteristics within overlapping buffers?

I want to extract averages from raster data that fall within buffer zones around a village point. The problem is that the villages are pretty close together in some places and I need to come up with ...
4
votes
4answers
1k views

Creating polygons as % of original area using ArcGIS Desktop?

I have a polygon shapefile and need to create new polygons, within the originals, as % of original area. I used buffer by field (Field= new area as %) but the buffers are created in circles around ...
3
votes
2answers
90 views

Is there a way to have a 'live' buffer in QGIS

I use QGIS (2.10.1) to create buffers around polygons. I often create a series of buffers, and later need to edit the underlying polygons. It is frustrating to start from scratch in re-create ...
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2answers
105 views

How to Merge, Buffer, and then Intersect multiple features based off of the Buffer feature in ModelBuilder

I have created what I thought to be a simple ModelBuilder model and the final output (.shp format) is always an empty. As you will see in the ModelBuilder image below: Merged 3 track logs now called ...
5
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2answers
1k views

Compound variables in Model Builder?

I'm trying to create a model wherein one of the parameters is a compound variable, that is made of multiple variables joined together. How can this be done? For example: create an insider buffer ...
4
votes
1answer
142 views

Create uneven, different diameter ellipse around point in QGIS 2.10

I am trying to make an attribute to show the uneven spread of the crown of a tree using the four cardinal points. I can use a buffer to show one feature, in this case a root protection area. But I ...
2
votes
1answer
24 views

Determining Wet Well Service Area using ArcGIS for Desktop?

I am using ArcMap 10.1 I have a wet well with a known ground elevation. I am trying to determine the service area of that area based on the assumptions that the wet well is 20 feet deep and that my ...
3
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2answers
2k views

Using Buffer Wizard in ModelBuilder?

I am creating a model in ArcMap 10 and I need to use the Buffer Wizard tool to create multiple buffers within a polygon feature class. The problem is, I can't seem to place the Buffer Wizard within my ...
7
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1answer
2k views

Inside buffer with attributes in ArcGIS?

How can I create buffers for polygons that: a) lie only inside the polygon boundary, and b) know who their parent is? An example of where this is useful is First Nation Traditional Territories. ...
2
votes
3answers
131 views

Buffer zone outside objects cluster using FME

I am doing a buffer analysis around some roads. The buffer is 1000 meters and is dissolved. This gives me a buffer which covers the roads as well as the distance outwards. It looks like this: ...
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0answers
61 views

Finding distance and angle to points in point buffer, from center of buffer?

I have a number of buffer circles that contains some interesting points (the green points in the picture). I would like to find out the distance and angle from each buffer center (that I have in the ...
2
votes
1answer
117 views

Zonal Statistics Freezing QGIS 2.2

Running on Windows; 8gb memory, 500gb HD, i5 cpu; Raster file: 250mb I am having a problem with zonal statistics advancing past 17%. I am trying to run statistics on a crop grown in certain counties. ...
2
votes
1answer
35 views

Can you map distance bands?

I know you can calculate using distance bands, but can you actually illustrate them on the map in ArcGIS? I have a presentation next week, and it would be a useful illustration for me to use.
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1answer
27 views

arcpy.mapping exportPDF with ONLY one buffer ring turned on for associated iterated feature

I am exporting X number of maps iterating through a point feature class. Each feature class has a buffer drawn around them. I know how to export a PDF for each feature class at a fixed scale (if I ...
2
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2answers
84 views

Is there a QGIS equivalent of inline variable substitution in ArcGIS?

I am working through some analysis in QGIS and need to iterate through a layer of points and buffer each point and then export to a new layer. I want the new layer names to have the values from a ...
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0answers
68 views

How to calculate zonal statistics of buffer zone with minimum distortion

I want to create 50km buffers around a large set of polylines that have a global extent. My objective is to calculate average raster values within each buffer zone. The matter of confusion: I want ...
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0answers
26 views

Change parameters of buffer in editor toolbar, not in the actual buffer tool

I have many areas that need to created as buffers around lines, but they need to be various sizes and an on-going project where the lines will need to be drawn in, adjusted, then buffered. The most ...
2
votes
1answer
355 views

Create Circle and Marker on Click in OpenLayers

I want to create a marker and buffer around it with a given radius on map click event. Marker is displayed successfully but the polygon doesn't display. I guess there is problem in projection setting. ...
4
votes
1answer
369 views

Distance from waterways using SDC file?

I have an sdc file with water bodies, i.e. oceans-rivers-lakes. I want to combine it with a shapefile with the boundaries of countries all over the world and produce two measures: 1) The average ...
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2answers
149 views

Changing units of buffer

Desktop 10.3.1 GCS: WGS 1984 Created a Buffer of points based on a pre-specified radius from the points attribute table. It appears all of the buffers were created with a decimal degree unit of ...
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1answer
798 views

Buffer analysis - use of surface area based on DEM

I have one problem and this is that I would like to create a buffer around point. This is simple with ArcMap using the buffer tool. But is it possible to create the buffer considering also the true ...
2
votes
1answer
264 views

buffer using topological operator

IMap map = axMapControl1.ActiveView.FocusMap; IFeatureSelection fSelection = map.get_Layer(0) as IFeatureSelection; ISelectionSet selSet = fSelection.SelectionSet; ICursor ...
2
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0answers
206 views

Can we create buffer analysis using python in qgis?

Can we create a buffer of distance 0.004 using python in qgis. I tried this link, but it isn't working for python in qgis 2.10.1-Pisa. The above is the diagram of buffer I am asking. It's located ...
3
votes
2answers
192 views

Erasing buffer within another buffer without erasing overlapping buffers using ArcGIS for Desktop?

I'm not an ArcGis pro, so I need help on this one, and I have tried searching for answers. I am using ArcMap 10.2.2. I don't know how to use python. I have 6km and 12km buffers around the sites ...
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163 views

Buffering a polyline

I'm attemping to buffer a polyline that the user has drawn on a map (Google maps and OSM map). The user specifies a distance in metres and a polygon should be drawn around the polyline representing ...
0
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1answer
143 views

How to extend a (river water level) raster, transfering its values to the added area?

Exploring the raster tools in QGIS and related software, I found raster buffer functions to surround existing rasters. The values of the raster buffer are restricted to be distances from the interior ...
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2answers
91 views

Select points located within Multi Ring Buffer

I have two point datasets, 1 showing the location of road accidents, the other showing the location of traffic intersections. I have created a Multi Ring Buffer at 25m intervals around the traffic ...
0
votes
1answer
50 views

How to use an array for buffer

I want to to use an array to create 3 buffer files with different buffer distances. The code should produce 3 buffer files in one step. Additionally, the code below runs already after using an ArcGIS ...
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0answers
14 views

Representation of streets/highways Geometry

I have Navtech data which provides center-lines with geometric data of the roads. The most important data for me is that it gives me the width of the road as well as the number of lanes for most of ...
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202 views

Drawing Zoning Setback Lines

What would be the process for drawing zoning setback lines for a property parcel polygon? I'm looking for a software agnostic solution - just a walk through of the general steps with enough detail ...
1
vote
2answers
261 views

Displaying Buffer overlap in ArcGIS Pro with Intersect

I have created some buffers around some points in ArcGIS Pro, and I am wanting to recognize the area of the buffers that overlap with another buffer within the same layer with a different color. How ...
2
votes
2answers
78 views

How do I create proportionate inner buffers which reduce in size based on a percentage, to a specific point

I am working in ArcGIS and I have a 75 basin polygons and a point feature (called origin point) within each polygon. (Not necessarily in the centre of the polygons). I want to create 100 polygons ...
0
votes
1answer
163 views

Adding pixel value data from a raster layer to a number of buffer polygons ArcGIS

I have created a layer of polygons with buffers around my points of interest, all of the same size, in Arc GIS. I also have a raster layer of nighttime lights with pixel values between 0 and 63 ...
0
votes
1answer
38 views

Merging buffers together with no fill colour? [closed]

I am a bit of a novice with GIS. I have created several 500m buffer zones around streets in GIS. I ultimately want a combined buffer so only the outside line that measures 500m away from all of these ...
1
vote
1answer
195 views

Variable width buffers depending on surface area (Arcmap 10.1)

I know this is a pretty basic question but I couldn't find the answer myself, so here I go: I need variable buffer widths depending on the surface area of the polygon (city) size. For example: A ...
1
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0answers
65 views

Creating Dynamic 3D Buffers in ArcGIS Pro

I am currently using ArcGIS Pro to model WiFi router signal distribution and I would like to use buffers to display them in a 3D format. I have used the Buffers 3D tool to create spherical buffers, ...
2
votes
2answers
2k views

Polygons will not buffer in ArcMap and instead give WARNING 000117: Warning empty output generated?

I have been trying to buffer 15 polygons (-15m) in ArcMap. I did a batch buffer and 13 polygons worked fine, the other 2 have not buffered, an error occurs: WARNING 000117: Warning empty output ...
2
votes
0answers
36 views

Buffers Not Overlapping correctly in ArcGIS for Desktop?

I have two records in one shapefile that I am trying to create two separate buffers around. When I go to Geoprocessing - Buffer I choose the desired shapefile, set the desired buffer distance, make ...
0
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2answers
395 views

Selecting isolated polygons which are not donuts but may overlap using ArcGIS Desktop?

I'm exploring a few different options for this process and I'm unsure what would be most effective. I'm trying to find all isolated, non-intercepting polygons in the same layer (not to merge). Most ...
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0answers
21 views

Problem with passing ranks to different buffers

This issue is really troublesome.i have a SpatialPointsDataFrame which refers to a city.I needed to perform a join with a dbf in order to attach the population column which i did thanks to a couple of ...
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41 views

Parcel Buffer - Property Setbacks [closed]

I am trying to model property line setbacks. In this case: 25 ft from front and back of property, 10 ft from one side and 8 ft from the other. Tried averaging the total set back distance 68/4 = 17 ft ...
3
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0answers
80 views

Drawing “proportional” buffer using QGIS or GRASS?

I'm working on aquatic vegetation and have a shapefile representing floating vegetation in a lake. By some studies, we know that submerged vegetation extends for a certain extension based on floating ...