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Questions tagged [overlapping-features]

Features that share some or all of their spatial location with other features.

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6
votes
2answers
2k views

How to combine data from overlapping polygons?

Here's what I'm working with: Shapefile of the current 32 Congressional districts for all states Shapefile of the tract boundaries for Texas A DBF format table of Hispanic counts and proportions for ...
3
votes
1answer
2k views

Counting number of overlayed points in line feature using ArcGIS Desktop?

I created a polyline representing a road using GPS points. Then I have another set of data of random GPS co-ordinates which i have to overlay on that polyline (Road). I am trying to calculate how ...
17
votes
3answers
1k views

How to improve cartographic visualization of overlapping polygons?

I need some advice about how to improve the visualization of cartographic information. User can select different species and the webmapping app shows its geographical distribution (polygonal degree ...
27
votes
2answers
24k views

Trilateration algorithm for n amount of points

I need to find algorithm that can calculate centroid A (aka gravity center, geometric center, center of mass) from the figure where circles T1,T2,T3,T4,T5,..,Tn intersect AND length of line R from ...
17
votes
1answer
9k views

Representing overlapping lines in ArcGIS Desktop? [duplicate]

I have lots of lines (in one feature class) which share the same location but I want to represent them as lines that are next to each other because they have different properties (different OWNERS). ...
7
votes
6answers
29k views

Representing several points with same coordinates on map using ArcGIS Desktop? [duplicate]

I'm working on Arcgis 10. I have a point shapefile representing events with several points having coinciding coordinates (They have the same coordinates). For representing them in a dynamic way, I ...
7
votes
3answers
6k views

Adding “noise” to overlapping X,Y coordinates so no longer in EXACT same place?

I have a series of points representing animal observations. Many of them overlap, having the exact same coordinates, and this is causing me trouble when I want to run some analytical tools which ...
9
votes
4answers
4k views

Exploding overlapping to new non-overlapping polygons?

Given multiple polygons that overlap in multiple ways, I would like to export from these features all polygons that don't overlap with others, iteratively. The product would be a number of features ...
4
votes
2answers
192 views

Calculating zones in multipart polygon feature using ArcGIS Desktop?

I was wondering how you can give each zone a value based on how many overlaps there are from a multipart polygon feature. See the picture. If the circles don't overlap I would like the area to have an ...
1
vote
1answer
3k views

Overlaping graphics not visible in featureLayer?

I have constructed a featureCollection from JSON and the feature collection has 44 features. I have given this feature collection as input to the Featurelayer which is showing only 32 graphics ...
5
votes
2answers
3k views

Symbolizing Overlapping Oil & Gas Polygons in ArcGIS Desktop?

I am mapping an area where there are a lot of overlapping features because of certain Oil & Gas wells being drilled within the same geographic area, but to different depths and maintained by ...
14
votes
1answer
4k views

Dealing with overlapping features in OpenLayers

If users create a polygon feature that completely overlaps another one, like this … … then there's no way you can select the inner feature, i.e. the one that's overlapped by the other. I'm currently ...
15
votes
3answers
8k views

Cartographic techniques for symbolizing routing data [closed]

Some common problems with displaying routes created from street data, such as bus routes, include: Routes may overlap themselves, such as when a route takes the same road in opposite directions ...
3
votes
1answer
234 views

OveDouble counting points that fall within 2 or more overlapping buffers in ArcGIS Desktop?

I want to analyze crime around certain types of stores in a city. I made buffers around the stores and I need to: select and extract crimes that occurred within those buffers, and join the two ...
4
votes
1answer
522 views

Validating polygons for no gaps/overlaps/slivers using ArcGIS Desktop?

I would like to assess the spatial accuracy of a load of polygon shapefiles which are supposed to show air quality for a bunch of countries. Firstly I want to assess whether each shapefile has a ...
6
votes
2answers
4k views

Finding crossing lines in ArcGIS Desktop?

I have a network of lines (pipes) and I want to be able to show the difference between an intersecting line and a crossing line. I was wondering if there is a tool for generating points on all ...
6
votes
1answer
11k views

can I extract overlap of polygons within the same layer?

I am trying to extract the overlap of polygons that are within the same layer in 10. The layer came from a buffered street centerline and I'm trying to extract and delete the intersections from the ...
7
votes
5answers
9k views

Merge overlapping lines in ArcGIS

I have a polyline shapefile containing a number of lines, some of which overlap. By overlap, I mean that they follow exactly the same path for some of their route, but also have bits that are not ...
15
votes
9answers
5k views

How to obtain overlapping semi-transparent circles effect in ArcGIS for Desktop?

I have been trying to obtain the following markers effect. How can I do the same in ArcGIS? This image is from a book.
23
votes
5answers
4k views

Rendering overlapping lines

I am making a map containing information about public transportation: busses, trams, etc. The map will have a layer containing for example the tram lines. Each line has its own colour, and is ...