Tagged Questions

In object-oriented programming, a logical grouping of classes, usually with a header section that lists the classes in the library.

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0
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0answers
19 views

Tools to generate all the possible geometries meeting specific constraints

I have an area = 2d polygon (generally a 4-side shape). I would like to generate all the possible rectangles matching the following constraints: that fall within the surface of the area with a ...
2
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0answers
48 views

What C/C++ libraries exist to transform vectors between map projections

Has anybody written a C/C++ library (preferably one that is aware of Proj.4 definition strings) that has a set of routines to convert vector quantities (e.g., wind speed and direction) between map ...
1
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3answers
149 views

How to create a multi-colored raster image based on long,latt,color information?

I want to create a multi-colored raster layer to overlay on my map in OpenLayers I have the following information in my DataBase: D_Cell_ID Long Lat ColorCode 055113 ...
1
vote
1answer
104 views

running tlb from bin — interop.scripting.dll not found

I rebuilt a custom command in VS Express 2013, added from file to a custom toolbar in ArcMap 9.3.1. The form appears, but upon running I immediately get an error about a missing Interop.Scripting.dll ...
3
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2answers
192 views

geospatial libraries like postgis

I'm pretty comfortable with postgis, but I realized that for part of my application, having a database is pretty heavy. I'd like to be able to take a stream of Point objects and check against an in ...
1
vote
2answers
175 views

Best way to figure out which regions a point is in a shape file?

I'm trying to figure out the best way on Android to figure out if a point in region as defined in a shapefile. For instance, I might want to know what country I'm in using the Geo Common's Shapefile ...
1
vote
1answer
89 views

fatal error LNK1104 qgis build

I try to build qgis1.8.0 using Microsoft Visual c++ 2010 in a Windows 7 64bit. all the dependency are installed and the solution qgis1.8.0.sln was generated succesfully. but my problem is the ...
2
votes
1answer
189 views

Creating New Modules in Saga GIS

I have recently started development with SAGA and have run into some difficulties. I have checked out the svn code base and have successfully compiled in VS-10 (except the project ViGrA). Now I just ...
0
votes
1answer
404 views

PostGIS upgrade 1.5->2.1 on OSX

i'm struggling updating my installation of PostgreSQL/PostGIS, from 9.1/1.5 to 9.2/2.1. I'm on OSX Mountain Lion and using the very useful ports from W. Kyngesburye. I followed the procedure : ...
9
votes
7answers
3k views

Is there a Free Opensource Shapefile Writer for .NET?

I am looking for a well documented, OpenSource Library that can create and write to a shapefile from .Net. I need lower lever access:i.e. I should be able to write feature by feature. Does such a ...
2
votes
2answers
352 views

A library/software to create DEM from a topographic map

In one of my projects I need to digitize video clips showing some natural landscape. Specifically I need to know distances between different areas and elevation levels. I have a topographic map of ...
1
vote
1answer
132 views

Which GeoTIFF tags tell me what I want to know? [duplicate]

I'm reading some GeoTIFF files into my app using libgeotiff. After the model of the listgeo program that comes with libgeotiff, I want to extract the extents (corners) of the GeoTIFF so I can position ...
1
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0answers
22 views

Environmental styles library

i'm looking for environmental symbols, related to berm diagnostic (collapses, subsidences, anthropogenics deposits... Is there any style library available? Thanks in advance, Max.
2
votes
1answer
58 views

QGIS QgsOgrProvider library

I asked a question here: http://stackoverflow.com/questions/14790463/qgis-copy-layer-in-c-plugin and I was suggested to find the library which provides QgsOgrProvider::createEmptyLayer() function. Can ...
2
votes
1answer
109 views

Licensing of QGIS libraries

what type of license are subject to the following QGIS libraries? libqgis_analysis.so libqgis_core.so libqgis_gui.so I would like to use the following libraries released in QGIS package in a ...
7
votes
1answer
3k views

Is there an comparison of the various mapping libraries for Android?

I am currently looking at the various libraries that I can use to show a map in my custom Android App. I have found several like Mapsforge, OSMDroid, ArcGIS runtime for Android, Google Maps for ...
2
votes
1answer
100 views

Library design: Layer coodinates/origin

I am working on a vector map library where you can add plain image and vector layers to a map. The map itself consists of an infinite coordinate system and each layer is a coordinate system of it's ...
1
vote
2answers
465 views

TF.Net versus the NetTopologySuite

In a recent post, a responder made reference to the Topology Framework .Net. I'd never heard of it before, having gently used the NetTopolgySuite (and DotSpatial) before with satisfactory results. ...
4
votes
1answer
309 views

Finding intersection density for weighted lines connecting points across the continental USA

I'm working on an one-time problem that I'm hoping to solve with a computer program using free GIS libraries (preferably for VB.Net, C#, or Python... Java or C/C++ could work too). Alternatively, I ...
7
votes
4answers
273 views

Self-hosted WeoGeo-style geospatial library software

I've been hearing a lot about WeoGeo Library recently, but (a) it costs and (b) it is hosted 'in the cloud', which is not acceptable for the data my organisation is using because of data usage ...
0
votes
1answer
196 views

I am looking for a library or API to do vector overlay for two map layer (shapefiles or GML files)

I need to perform vector overlay operation on any two map layers as ArcGIS and Grass GIS performs. I am wondering is there any API or library ( in C, C++ or Java) so that I can use that third party ...
1
vote
3answers
1k views

C# library for bounds based geometry search

I am searching for C# library which has code that builds spatial index in memory based on geometry bounds and enables fast searching for all geometry inside given bounds. I prefer free library.
2
votes
0answers
167 views

Wifi hotspot localization

Using WiFi 802.11 I'm trying to build WiFi hotspot fingerprints based solely on radio signal strength and mac id. Now I'm wondering: Would it be possible to know the position of hotspot neighbors in ...
123
votes
16answers
44k views

How do various JavaScript mapping libraries compare?

I am working on a web-based mapping system and I'm trying to figure out the best/most appropriate library to use. There are a few of them about and they each have pros and cons. Even after trying a ...
3
votes
1answer
701 views

Good Java-Based Raster Libraries

Can anyone suggest a good, Java-based raster library? By good, I mean a library that can read common raster formats (ex. tif, img...etc) and save them to other image formats (ex. png). I say ...
1
vote
2answers
603 views

Is there any open source library for reading OCAD files?

I would like to read map files created by OCAD (.ocd). The file format specification is open and available on the web page, but it's binary and complex. Is there an open source library that can be ...