Application programming interface (API). A set of interfaces, methods, protocols, and tools that application developers use to build or customize a software program.

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4
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22 views

Is there a way to use the GDAL C++ API to find areas of overlap between two SAR images?

I have a bunch of SAR images (about 1 GB each) on which i need to do some image processing. Each image is georeferenced and there is significant overlap between each pair of images in the set ie. one ...
4
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158 views

Twitter REST API missing geo-tagged tweets from Europe

I used twitter's REST API to get few thousands tweets from last two days. Everything went ok, but when I put tweets on the map, there is empty "box-like" area (no tweets for almost entire Europe - ...
3
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41 views

GDAL c# API returned different WKT from gdalinfo

I've found completely different results in WKT strings while using gdalinfo utility and method from c# API GetProjectionRef(). In the first case the result was: PROJCS["WGS 84 / Pseudo-Mercator", ...
3
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91 views

Web mapping API popularity

Are there any online statistics for the popularity/usage of web mapping APIs? A diagram would be sufficient, if it can be published in a paper. I have only found one source: ...
3
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0answers
285 views

Closest set of points to another set of (predefined) points

I have 10 sets of points which I call templates that I have manually classified from 0 to 10. Each point is a X, Y coordinate in a text file. Each template has 5-8 points. I have new sets of points ...
3
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350 views

GeoServer REST API: Creating Database Data Store does not persist password

I'm passing the XML created by the method below to a GeoServer REST API request that successfully creates a postGIS data store. However, password is not persisted. I have to update the password ...
3
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0answers
66 views

Is there an easy common gis abstraction available in .Net

Is there an easy common gis abstraction available in the .Net programming world that cuts the dependency to a concrete gis implementation, e.g. to the esri silverlight/wpf sdk. ... for example ...
2
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56 views

Use QGIS API on standalone python program without install the entire application

I developed a standalone python program that makes use of QGIS API to create .qml files from sld files. This is a small program of about 15 lines of code that imports the following modules and uses ...
2
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177 views

Get all locations of Panoramio photos in a given extent

To create a visual quality heat map I'm trying to get a list of all Panoramio photos in an about 2000 Km2 wide study area. My idea is to perform a density analysis in GIS on a point shapefile ...
2
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33 views

Querying a shapefile and returning values?

I have a lot of experience making maps in ArcMap. I don't have much experience programming or working with APIs. Here's the (simple) problem: I create a shapefile of a region and then load the ...
2
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0answers
94 views

Is there an api for world terrain/biome data?

I'm looking for an api where I pass a lat/lng, and get "Desert" or "Mountains" or "Ocean" back. Just the general biome of the area. Most of what I've seen involves getting tiles back, so you can ...
2
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186 views

Can I use the Google Elevation API for academic research (licensing)?

I would like to use the Google Elevation API to generate about 5 elevation maps for master's degree research on aircraft collision avoidance. The data would be meshed and used in simulation to ...
2
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0answers
302 views

How to develop a real-time navigation App using QGIS API?

I want to develop a navigation application based on QGIS using C++, for live tracking. I think it is quite normal for GIS to do such things, especially QGIS as it is a very mature GIS platform. But ...
2
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26 views

Finding equivalent API-supported data to the 2000 Census

I'm having some difficulty choosing Census datasets for a project that involve various SES measures at the block-group level. I'll be looking at things like median household income and percentage of ...
2
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0answers
281 views

Seeking free nautical route planner Data?

I don't really need an application, but rather an API. I plan to develop my own application and don't need someone else's GUI, just their information. I want to know the distance a vessel at sea must ...
1
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13 views

Using Google Maps API to dynamically display delivery-time zones?

I'm looking to replicate the functionality from the UPS Ground Map which will allow users to enter a zipcode, then dynamically show delivery times by region. I know I need travel times by state data ...
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0answers
33 views

Creating in panel TOC widget using Web AppBuilder for ArcGIS developer edition?

I'm trying to create a custom widget, in web AppBuilder for developers, for my web application that will be a TOC. Does anyone have a code already produced for this or know how to adapt code to do ...
1
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0answers
24 views

polylines between two locations over sea and not land

I have several thousand locations in a database, Location A travelling to Location B, New York to London, Paris to Buenos Aires. I'm trying to plot a path between two places only over sea. I'm not ...
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18 views

how to draw curved line in a qgsmapcanvas

i am working on a project with qt4.8.6, api c++ of qgis 2.8.2 we need to draw curved line in a vectorlayer by given 2 points and an offset by exemple is it possible to do that with the c++ api of ...
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31 views

Is there a default limit on concurrency in overpass-api?

I have setup overpass-api in my local machine (16gb ram,32 core,2399Mhz). I send 100 threads each with one request(data=[out:json];node%28around:10000,13.0894,80.2428%29[%27amenity%27];out%20count;), ...
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32 views

Nominatim does not respect countrycode

Possible duplicate I have a question about Nominatim, but the OSM forum currently does not accept new registrations... I want to limit my search results to a specific country, so I am using the ...
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91 views

Using historical imagery Google Maps API for Business

Is there a way using Google Maps API for Business to see historical aerial imagery, like you can in Google Earth Pro, with the slider bar they have at the top of GEP?
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64 views

About performance of qgis with big layer or a lot of layer

does anyone has a feedback on the performance of a big layer by exemple : I have a layer with 100 features, each feature contains specifics attributes with dynamic data, the data change each second ...
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18 views

How to change the value tof the use tag in a svg file

I am working in C++/QT4.5 with the qgis c++ api 2.8.2 I have a svg file that contains different form tag by Id When i want the first form i place the id name in the use xlink:href="#formname" .... ...
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34 views

How to SetVisible a layer without redraw all the mapcanvas

I am working with QGis 2.8.2 API c++/ QT 4.5 I am displaying a lot of layer in a mapcanvas, I am looking for a method like setVisible(boolean ) in order to setvisible or not a specify layer ...
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40 views

VectoreLayer Still Empty even if attribute has been set with value

I am working with the qgis api c++ 2.8.2, my application is written in QT 4.5.3 / C++ I had to create a vectorlayer in memory with attributes and features and export it to a shp file to import it in ...
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0answers
50 views

How to write a test suite for QGIS standalone application

I have a rather simple QGIS standalone Python app (2.8.2, Windows 7/64), with some published methods to create different types of geometric primitives (rectangles, circles). class MyApp(QMainWindow, ...
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164 views

QGIS - Pop-up menu not displayed when right click on a layer in layer tree view

I'm developing a custom QGIS application using the QGIS API. I've been using the API provided with QGIS Brighton (Version 2.6.1) and have been developing the application in Python in a Windows 7 ...
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56 views

Wikimapia export all geoglyphs category in an area

I am creating a page with all geoglyphs in Peru. I am looking to download from different areas and upload to google maps, thus I need a kml file. Wikimapia seems to have quite a bit of these and I ...
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195 views

KML Layer Watermark Removal

Hello right now I have a google maps page with KML Layers from multiple online resources. However all of these layers especially those from noaa have giant watermarks that take up large portions of my ...
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130 views

Geonames API database update

Last Thursday I created several places in Geonames (using the website UI). When I tried to retrieve these places using the API, I couldn't get them. In that moment I thought that perhaps the API ...
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49 views

Web Mapping SNMP polling and databases

I am doing a project that involves Web Mapping. The project involves having a simulated communications network for a wind turbine company. My project involves building a user front end to display ...
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205 views

Loading KML WMS Network Link through Google Earth API

I'm trying to add a KML network link with the Google Earth API using the same function that I have used for regular KMLs and KMZs. Sources suggest to create a KML with a "Ground Overlay" to connect to ...
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0answers
185 views

How to create a svg item onto Map Canvas in QGIS API?

I'm working on a project with QGIS-2.4.0 API using C++. I need to load some svg files to the application for displaying as symbols. QGIS API has a class named QgsMapCanvasItem, which is an abstract ...
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167 views

GDAL C/C++ API and filtered pyramid tile generation

I have been tasked with adding functionality to an existing C++ developed toolset whereby a source dataset (typically a single GeoTIFF) needs to be split into tiles at various resolutions ('zoom' ...
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0answers
2k views

What alternatives do I have for Directions API other than Google Maps and MapQuest?

I need an API, other than the two below that, given the starting point and possibly the ending point, will re-order a list of waypoints by the shortest, fastest or optimized route: Google Directions ...
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0answers
215 views

Write WKT/WKB to File Geodatabase using FGDB API

Is there a way to set the geometry of a row using either WKT or WKB with the File Geodatabase API? Is there any other way to write spatial data to the file gdb using the fgdb api without having to go ...
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0answers
69 views

looking for places-api that exposes qualitative data/tags like 'trendy' or 'casual' for a place

I'm looking for places-api that exposes qualitative data/tags like 'trendy' or 'casual' for a place. I hoped Foursquare would give me this but I believe it doesn't. It would be great to have tags ...
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0answers
436 views

intersect two shape files using QGIS API

I am trying to automate a process of a shape file. We are using google maps engine and we have limitation on number vertices in a shape file. so I am using a grid to split the shape files. In GUI , I ...
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0answers
889 views

Requesting styled Google Map tiles via URL

I'm not working with the Google Maps API but I'd still like to be able to request styled map tiles. Is it possible to request a styled Google Map tile via a URL similar to the slippy map URL format ...
1
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0answers
387 views

GeoServer REST API Timeout Error

I'm trying to upload a 20MB shapefile using the REST API, but gets a timeout error. I can upload smaller files without problems. I'd like to be able to upload a shapefile of any size without ...
0
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0answers
53 views

SAGA GIS API ERROR (import saga_api)

I want to use saga api on my Idle with Python but I have problems. First I have Windows 10 64 bit, I install SAGA GIS via OSGeo4W64 64 bit, and I have Python 2.7.11 64 bit. I follow steps for the ...
0
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0answers
20 views

How to get online the coordinates of result when search a region in Google Maps

I want to get online or by an API the coordinates of a polyline with the following format: { "type": "LineString", "coordinates": [ [-78.658805,-4.227355], [-78.659856,-4.228254], ...
0
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0answers
9 views

JavaScript API ArcGIS Combine Legend with On_Demand feature class query

I am having trouble adding a legend to my JavaScript code I have a basemap, scale bar, and a click on demand query info box for my feature class which displays the attribute fields but when I add the ...
0
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0answers
31 views

Possible to base GIS layers on results of calling API

Is it possible to call an API which returns spatial data as JSON, GML, XML for example and use it as as data source within QGIS or other GIS? I don't know enough about APIs to understand if I am ...
0
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0answers
22 views

Is there a WebAPI to get latlong from PLSS Data?

I'm creating a Website, where users need to enter Principal, Township, Range & Section, and the map needs to be taken to that area. I have looked at the PLSS data here: ...
0
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0answers
26 views

What GIS API is slaveryfootprint using for this survey question?

I was taking the slaveryfootprint.org survey, and their question 1 is awesome: http://slaveryfootprint.org//survey/#where_do_you_live You type in a city, and the svg map locates it. If it doesn't ...
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170 views

get latitude and longitude of each grid point in a grid with squared cells based on a given shapefile

I would like to draw a grid whose cells are all squared on a given shape file. The shape file has the information of U.S. map at zip code or county level. I need to create the squared grid (with a ...
0
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0answers
39 views

how to add vectorlayer in a mapcanvas with a raster

I am working in c++/qt4.8.5 with qgis api 2.8.2 For my application I had to load a raster in a mapcanvas, then with different action I had to add pint , line or polygon Is there a simply way to do ...
0
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0answers
71 views

Is there an open source API I can use to re-write javascript code for a web app that uses Esri's JS API?

Is there a way to "translate" Javascript code from a web app that depends on Esri's Javascript API into an Esri-independent web app? Also, can this be done if the app was built with Esri's Web App ...