A part that forms the outer edge of something.

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0
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3answers
29 views

find border coordinates of brazilian states

I am looking for coordinates (longitude and latitude) of each state of Brazil. Where can I find that? I have found a file for the US states here: http://econym.org.uk/gmap/states.xml, I am now ...
1
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0answers
45 views

How to calculate which US counties border the ocean?

I have a shapefile with boundaries of US counties. I want to figure out one seemingly simple thing - which counties are on the Atlantic ocean? NOAA maintains a list of coastal counties, but this ...
4
votes
1answer
71 views

How to visualize texture along borders of multipart polygon

I came across this map and would like to replicate the textured styling found along the borders. I'm starting with a multipart polygon but my process has perhaps too many steps. I'm using QGIS ...
0
votes
0answers
19 views

Draw (adjacent) GIS-shapes, reduced and “rounded”

as the title says: I want to draw (C#, WinForms application) adjacent polygons stored in an GIS-database (SQL Server 2012, geography-datatype). The data source is OpenStreetMap administrative ...
-1
votes
1answer
27 views

Count roads crossing borders

I am looking for a way to count the number of roads crossing a national border in Europe. If possible, I would also like to decompose this result between regions (NUTS2 European regions). I am looking ...
0
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0answers
20 views

Using r.neighbors on borders

I have a raster file with pixel size 30 x 30. At the upper border there is half row with "no data" pixels. I want to use the mode function to replace them. I have only thought r.neighbors (from grass) ...
0
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0answers
22 views

draw borders on an online map

I would like to split areas on a map of north germany between four community centers to split the responsibility for the whole map between these 4 areas. Is there an online tool where I can draw the ...
0
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1answer
62 views

Dataset on bordering countries

Is there a publicly available dataset somewhere that lists all country-adjacencies (pairs of countries that share a land border)? Background: I want to programmatically access the list of countries ...
0
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0answers
15 views

Where do I get the coordinates of (african) borders from? [duplicate]

I want to draw a map of africa. Therefore I tried to find the coordinates of the coast and the borders as latitude/longitude. Where can I download this data for free, preferably in Excel format?
0
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1answer
24 views

Historic (and current) borders of Miami, FL

I am working from Australia and am new to US mapping and Census data. I am looking for historic boundaries of Miami (FL) from maybe 100-200 years ago. Also current boundaries would be great - what ...
1
vote
1answer
44 views

Where can I find a dataset for international borders that includes national waters? [duplicate]

I'm trying to find a .shp file that not only includes international land boundaries, but also the water boundaries, extending out to international waters. Does such a thing exist? I'm not even sure ...
1
vote
0answers
41 views

Lining up three Layers that use same Coordinate Reference System (CRS) in QGIS?

How do you make all borders of a layer equal? they should be equal but i don't know how, mCRS layer is all in philippine zone 5(EPSG:3125), with the same formula/equation, I'm new to QGIS and I'm ...
1
vote
1answer
49 views

Merged Layers turned into square shape cause by single layers in QGIS?

What I did is merged the 30 layers of the map (Isabela Map Province - Philippines) and below is what happened. How do i remove the inside map of the border? I'm new to QGIS and I'm using QGIS 2.4 ...
2
votes
1answer
153 views

Calculating countries flown over on flight path

Say I have two airports given. I can then get their coordinates. Now that I have the beginning and end coordinates I can draw flight-path from the two locations. Now my question is that given two ...
1
vote
2answers
45 views

Set border symbology by bordering feature?

I'm using a US state shapefile, and I want to have different border types based on properties specific to the border, not to any state. For example, I might want the Florida-Georgia border to be ...
0
votes
1answer
86 views

How to deal with political boundaries in grid cell analysis?

I have point data for Africa and I want to aggregate these data to grid cells which I create by a fishnet. Some grid cells cover parts of 2 or 3 countries. Normally, such cells are by different ...
0
votes
2answers
68 views

How to remove small areas without reducing borders

I'm having a problem where I am overlaying two maps to create a new kind of map with the data conjoined. In general this is good, but I need to remove the smaller areas from it. For the interior ...
0
votes
1answer
172 views

OpenLayers/Leaflet render world borders

I am trying to show all world borders. Either using OpenLayers or Leaflet. World borders are taken from here. This code does not work. What I am doing wrong? var Map = { map: null, layer: null, ...
-1
votes
1answer
322 views

Free border data and C++ code to display state/region borders with user-defined-colour areas?

Situation: What I really need cannot be shortly described in the title. We have a commercial application where geographical maps (borders only) are used or for selecting areas (input) or for colouring ...
5
votes
1answer
202 views

Is there a source for historical shapefiles of Europe in the modern era?

Is there a source for historical shapefiles of Europe in the modern era, i.e. starting ca. 1400? I know that "where can I find historic border data" questions were asked multiple times but I couldn't ...
0
votes
1answer
372 views

qgis — style edges of layer shapefiles to have thicker borders

I have two layers I'm working with here, both of North Carolina. One is "townships" the other is "counties". I want the counties shapes to have thick edges with no fill-in color. I couldn't find ...
1
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2answers
74 views

How to create thinner outside boundary outlines with bolder interior lines [closed]

I am working with a shapefile with a jagged coastline and interior regional boundaries. I am trying to create a thin line for the coast, so it appears more clearly, while still keeping bold, thicker ...
0
votes
1answer
82 views

how to select parts of a shape in QGIS

I have to have a Shapefile of France of the bigger regions: Ile-de-France, Bretagne, etc. and that is already included in my shape. But its only shown the Arrondissements (smaller regions) in France ...
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0answers
56 views

Borderlines of states subdividing my GRID

![enter image description here][2]I just merged a map of a country with its states, so I went from having 1 feature (the whole country) to 32 features. Is there any way to have the borders of the ...
3
votes
0answers
99 views

Quantifying polyline overlap

I have a set of regions and would like to quantify the degree to which the boundary of these regions are situated on/near rivers. I have turned the regions from polygons to polylines in arcgis 10.1 ...
2
votes
2answers
351 views

District border join in Google maps

I am developing a district editor for cities. The idea is that we divide the city into districts. I am using GoogleMaps, but any other js library is acceptible. Problem 1: districts are connected ...
1
vote
1answer
504 views

matching a border of one polygon to another [duplicate]

I have a polygon (A) that I drew the eastern border of in QGIS. I have another polygon(B) whose western border I want to nest against the eastern border of polygon a so they are touching but not ...
2
votes
1answer
142 views

How to represent two fields of the same states or district layer using different color borders and fills in QGIS?

If I had a set of data in QGIS that was gradually shading a state or district the exact way I wanted -- but I also need to portray more information about that state or district with additional colors, ...
1
vote
3answers
5k views

Which US zipcodes map to more than one state or more than one city?

I'm using a zip code listing, and I am curious to know how many (or which) zip codes map to more than one US state or US city? For instance I know that 42223 resolves to the same city which straddles ...
2
votes
0answers
60 views

How to change the order of a raster in order to create mosaic with MosaicPro (Erdas 9.2)?

Is there a way to reorder the input files so I can control which ones are on top of the others?
3
votes
3answers
1k views

Extracting polygons along a border

I have a shapefile of United States counties. Suppose I am interested in all counties in Georgia that border North Carolina and all counties in North Carolina that border Georgia. And, in ...
4
votes
2answers
2k views

How to trim Landsat 5 scene edges

I have a bunch of Landsat 5 scenes that I want to mosaic together. However Landsat 5 scenes have a zigzag pattern on the left and right edges as well as some bad data values along these edges. Is ...
13
votes
2answers
1k views

Where can I find historic country border data?

I am looking for border polygons from World War I (from 1914-1918). Is there a resource out there that maintains this kind of information? Any help would be greatly appreciated!!
0
votes
0answers
23 views

World country borders in polygon geometry format [duplicate]

Possible Duplicate: Where do I get territories data? Is there some source I can get all world countries polygon geometry points with latitude and longitude? I find it for USA states but ...
2
votes
1answer
806 views

How to meassure the length of common edges between polygons?

I have a shapefile that contains several polygons which in fact represent the limits of several counties. My task is to find each length of each shared border. So in other words I want to know how ...
2
votes
1answer
434 views

How to overlay my interpolation within the boundaries of Quebec?

I am trying to create interpolated maps within geographical borders. I have the coordinates and values to the points I am trying to interpolate. I also have a map of the geographical land mass in ...
0
votes
0answers
45 views

Historic country borders in GIS format? [duplicate]

Possible Duplicate: Is there a source for historical shapefiles and tiles? Does anyone know of a good source for historic country borders, in a GIS file format, like shapefiles? I've been ...