Questions tagged [library]

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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Compiling on CentOS fails due to ignored LIB flag

I need help with installing PostGIS. In general: I try to install it on a cluster (CentOS) and do not have admin rights. There is a sqlite3 installation (connected to the error), but this seems ...
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0answers
26 views

QGIS 3, OrfeoToolbox 7, Dynamic Library Error

I installed QGIS using KyingChaos’ OSX build and installed OTB following guidance on the GitHub page. When I run the kmeans classifier I get the following error: Algorithm ‘KMeansClassification’ ...
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63 views

QGIS 3.10.3 processing import problems

I just updated QGIS from 3.10.2 to 3.10.3. When I start QGIS I receive this message log in processing tab: 2020-02-24T14:27:00 CRITICAL Could not import script algorithm 'quick_api' from ...
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1answer
264 views

Compatibilty issue of pyexiv2 and ctypes module in QGIS 3.10

I'm trying to install a python module called pyexiv2 onto QGIS 3.10, I've noticed this module doesn't work. Although the module's installation seems to process well python -m install pyexiv2 and I get ...
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0answers
71 views

GDAL - Class File Editor: Source not found, The source attachment does not contain the source for the file osrJNI.class

Trying short java code example through gdal in eclipse, which fails. link: https://trac.osgeo.org/gdal/browser/trunk/gdal/swig/java/apps/OSRTest.java code: import org.gdal.osr.SpatialReference; ...
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1answer
196 views

Setting up dependencies for PyPi Elevation module?

I am trying to set up pypi's elevation module in Miniconda (Python 3.7.3), but I get the following error when I run the selfcheck: (base) C:\Users\name>eio selfcheck 'GNU Make' not found or not ...
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2answers
1k views

Getting a county name using a 5 digit FIPS code

Lets say I have a five digit fips code: '13245'. I have a dictionary to handle know that the 2-digit state part of the code(ex: {'GA':'13', etc...}). But I want to also get the full county name (EX: ...
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2answers
366 views

How to force PostGIS to use a specific GDAL version?

I have Ubuntu Server (16.04) with installed PostgreSQL (9.5) and PostGIS (2.2). I have also installed GDAL 2.1 (from ubuntugis/ppa) and I need PostGIS to use it. But when I check: SELECT ...
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2answers
429 views

Visual C++ runtime error

I had a working ArcGIS installation on my computer. Suddenly one day this error occurred. Runtime error! in Microsoft Visual C++ Runtime Library . I have reinstalled ArcGIS, reinstalled all the ...
2
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1answer
2k views

Finding longest line segment within polygon? [closed]

I have been looking around to find a way to calculate the longest line within a polygon. Determining longest line segment within polygon that passes through its centroid? and Calculating maximum ...
2
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1answer
258 views

GeoServer: which library for boosting (raster) WMS output generation [closed]

I have a GeoServer instance, which is only used as a WMS service. Reading the docs, there are libraries, which can be used to boost WMS ouput generation: native JAI and ImageIO JAI-EXT libjpeg-turbo ...
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2answers
484 views

Does exist a Python library to generate polygons avoiding antimeridian issues?

If I need to generate a polygon that crosses the anti-meridian, does it exists a Python library that treat such cases (partitioning such polygon and generate a multipart polygon)?
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2answers
151 views

Converting polygon in grid points for each grid of 100m*100m in PyQGIS?

I want to convert my polygon layers into point layer where I will have a point for each grid of 100m *100m grid for entire polygon layers using PyQGIS ? I don't know any library function for grid ...
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1answer
505 views

CSV to GeoJSON in C++

I'm looking for a way of converting CSV file to GeoJSON in C++ I'm currently writing a conversion function that writes a text file with the structure of a GeoJSON file, but this isn't really sexy. ...
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1answer
50 views

How to convert debug.js to .js file after editing debug.js file

How to convert a library file debug.js to .js file after editing the debug.js file. I edited opensource library file olgm.debug.js . Now i want to convert it into normal olgm.js file to use in ...
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1answer
752 views

Python library for Geographically Weighted Regression (GWD)

The user @GrantD71 seems to have implemented a GWD in python through hard-coding using Numpy/Scipy. He asked for library/package to perform GWD but the best reply was given using an R package. I'm ...
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2answers
278 views

Plotting a hyperbola, or, solving spherical triangles

I am trying to create a GeoJSON path containing lines of hyperbola, in order to recreate Decca Navigator charts in QGIS, something like this: The chart has nine lines of hyperbola plotted between ...
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3answers
947 views

Open library for generating Styled Layer Descriptor (SLD) files?

I'm developing an app that can create/edit shapefiles and visual representation of vector layers and to export them to some of most common geoportals(f.ex. GeoServer). I have dealt with .shp, so now ...
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1answer
1k views

Open source library to display offline shapefiles in Android?

I am involved in developing a Android application that needs to be able to make use of Esri Shapefiles. Hardware used will be 7" Android rugged tablets running Android 4.2 or later. It is an offline ...
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0answers
268 views

Issue loading Fortran dll from QGIS 2.8 python plugin on Windows

I need help to call a Fortran shared library (DLL) from a QGIS python plugin. For this purpose I created a simple Fortran dll with the function to add two integers. Also I create a simple python ...
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1answer
1k views

Library for minimum bounding box “by width” in JavaScript or Python [closed]

I'm looking for a library (or at least a code snippet) to calculate the minimum bounding box "by width" in JavaScript or Python. Below is an illustration from the ArcGIS documentation of that ...
2
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0answers
763 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 ...
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3answers
564 views

Creating multi-colored raster image based on long,lat,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 ...
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1answer
239 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 ...
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2answers
808 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 ...
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2answers
674 views

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

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 ...
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1answer
266 views

Getting 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
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1answer
525 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 ...
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1answer
672 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 : ...
2
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2answers
661 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 ...
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1answer
308 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 ...
2
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1answer
102 views

QGIS QgsOgrProvider library

I asked a question here: https://stackoverflow.com/questions/14790463/qgis-copy-layer-in-c-plugin and I was suggested to find the library which provides QgsOgrProvider::createEmptyLayer() function. ...
2
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1answer
193 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 "...
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1answer
11k 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
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1answer
126 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 ...
3
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2answers
806 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
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1answer
816 views

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

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
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4answers
503 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 ...
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1answer
500 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 ...
2
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3answers
4k 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.
138
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17answers
84k views

Comparing various JavaScript mapping libraries?

I am working on a web-based mapping system and I'm trying to figure out which library to use. These are links to comparisons of available libraries: Laurent Jegou's benchmark (from 2010) is a global ...
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4answers
2k views

Grib2 Libraries For .Net

Are there any good libraries for accessing GRIB2 data in .Net? Specifically, I want to be able to quickly pull subsets of weather data from a grib2 file based on time and location.
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2answers
1k 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 Java-...
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5answers
2k 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 ...