A part that forms the outer edge of something.

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1answer
50 views

Hide only certain borders in QGIS?

I have shapefile (the 48MB just below the table here) showing borders of different levels in administrative hierarchies (e.g. borders within communities, between communities, and between federal ...
0
votes
0answers
33 views

How to choose with a different way the OSM Boundaries

Hi i need to get the borders of a country via Overpass API, but with the following query relation ["boundary"="administrative"] ["admin_level"="2"] ["name:en"="some country for example Papua ...
7
votes
2answers
132 views

Where can I find Historical GIS datasets?

I've been looking for a while for Historical GIS datasets. In a lot of places (also in answers here at StackExchange), people are referring to a great dataset at ThinkQuest, which contains shapefiles ...
2
votes
1answer
71 views

How to create a Color Ramp for Polygon Outlines in ArcGIS-Desktop?

Within the properties (symbology tab) of ArcGIS-Desktop (10.2.2, ArcEditor license level), is there a way to color the polygon outline of a layer using a color ramp? Using predefined color ramps ...
2
votes
1answer
66 views

Disable antialiasing in GeoServer .png output?

I would like to completely disable antialiasing of polygon borders in Geoserver's WMS png output. The reason is because we do downstream colour remapping, and intermediate colours break that. This is ...
2
votes
4answers
132 views

How do I eliminate the black border on a georeferenced map layer?

I have geo-referenced several scanned maps. Theses are placed side by side on separate layers in QGIS. They overlay other older maps of the same areas. Georeferencing caused the maps to have black ...
0
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0answers
47 views

Free datasets of Europe's historical country borders since the Middle Ages [duplicate]

Is there a source for historical shapefiles of Europe since the Middle Ages? There was a promising answer to the similar question Is there a source for historical shapefiles of Europe in the modern ...
1
vote
1answer
24 views

Conflicting boundary information

When I query, for example, the Germany Boundary Commission, and the Austrian Boundary Commission, for boundary information, I am getting conflicting data sets. Is there a resolution method for this?
1
vote
1answer
56 views

Acquiring administrative country border data with a given resolution

I want to be able to find out which country a given (lat,long) pair falls into, but I don't need this to be extremely accurate and especially coasts can be quite crude as false positive hits will be ...
3
votes
1answer
163 views

Extracting border between contiguous polygons using ArcGIS for Desktop?

I have a shapefile with polygons representing unique populations. I want to determine contiguous polygons in my shapefile, and then extract the border separating contiguous polygons as a separate ...
0
votes
3answers
97 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
vote
0answers
69 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
92 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
27 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
41 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
votes
0answers
25 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
35 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
votes
1answer
110 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
votes
1answer
25 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
52 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
45 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
52 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
168 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
50 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
106 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
73 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
214 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, ...
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votes
1answer
394 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 ...
4
votes
2answers
288 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
585 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
vote
2answers
79 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
88 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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votes
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
115 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
404 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
658 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
145 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, ...
2
votes
5answers
9k 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
69 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
2k 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
1k 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
467 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
52 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 ...