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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Extract median slope percentage for a specific plot of land

I'm completely new to GIS, but I have a possible upcoming project that requires tools for assisting people assessing the bushfire safety of specific private and commercial properties. One of the ...
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1answer
13 views

CartoDB with KoboToolbox, Open Data Kit (ODK), Enketo, or Ona source data?

I'm trying to use survey data collected by Kobotoolbox with CartoDB. I've reviewed the API's docs (https://kc.kobotoolbox.org/api/v1/), and I'm doing my best to follow them to connect my survey's data,...
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1answer
30 views

SAGA GIS work with python API error

I want to work with python API and SAGA GIS. I am very new with this work. The first step I find one module for example Slope, Aspect, Curvature and I take with right click one python script. python ...
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4answers
6k views

How can I fix “ImportError: No module named qgis.core”?

First of all, I'm using Python 2.7.3, QGIS 1.8 (Lisboa) on Windows 7 pro 64 bits. Now let's go to the actual question: I have written some code (Python) that works well within the QGIS built in ...
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0answers
45 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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2answers
1k views

Seeking Reverse Geocoding API?

I am working in a company where our team requirement is to do reverse geocoding lookups. Below is our requirement. To give you more background, the 3 geolocation-related needs I have are as follows: ...
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2answers
55 views

Opensource Geocoding APIs

I am in need of a geocoding api to use in my application. I tried Google maps api but it restricts 10 requests per second. The thing is place names will be there in my csv file and it should geocode ...
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1answer
27 views

Is there an active equivalent to Yahoo GeoPlanet available for commercial use?

It looks like GeoPlanet is dead (Is GeoPlanet dead?). Is there a suitable alternative that covers Parents (preferably Ancestors) and Neighbours? If there's a name for this type of data, that'd be ...
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1answer
22 views

Edit table or map metadata programmatically via API in CartoDB

I'm trying to automate the creation of datasets and maps with CartoDB. Now I would like to add the metadata information (source, attribution, description, etc). Is it possibile? I don't find this in ...
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39 views

Is GeoPlanet dead?

I'd like to start a side project that will rely heavily on the relationship between places, and GeoPlanet does this wonderfully. However, the latest version I can find of the data GeoPlanet Data v7.10....
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0answers
73 views

Seeking places-api that exposes qualitative data/tags like 'trendy' or 'casual' for place? [closed]

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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28 views

coordinate returned by xyCoordinate signal is different

I am working on a project based on the api qgis 2.8 and qt 4.8.5 I have two computer one with the qgis 2.8.1 and the other with the qgis 2.8.3 In my application I have a connect to the signal ...
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3answers
4k views

Do you know a service route calculation to get a route between several points?

I need a routing service with an API callable from a web or desktop application. I have several points: a start, an end, and intermediate points in the disorder. I expect the routing service to send ...
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0answers
35 views

Routing API with waypoint optimisation

Is there any free OSM Routing REST API without limits which supports multiple waypoints between the start point and destination AND is able to optimize these waypoints instead of calculating a route ...
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0answers
26 views

Looking for a web service to return landcover/landuse data based on Long/Lat

I am looking for an web based API to get location data based on Latitude and Longitude that will return landcover/landuse feature data for a mobile app. It will preferably return the data in a json ...
3
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1answer
274 views

How to return geo-tagged social media posts?

I have seen quite a few ESRI web apps that utilize Geo-Tagged social media posts as a point data layer. I'm wondering how one goes about querying things like Twitter, Flickr and YouTube to return ...
3
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1answer
342 views

Where are the raw data sources for all these maps?

Pretty straightforward question here. At an increasing rate I see crowd sourcing data being mapped to great effect. Where are the raw data sources for all these maps? I know they vary but I don't ...
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56 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 ...
6
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1answer
146 views

Memory Leak when deleting a layer

I am working on a project based on QGIS API c++ 2.8.2 and qt4.8. I have two methods in a class, the first create a layer and add a point Here is the code for the creating: LibCartoError CMyQgsS57::...
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1answer
1k views

OSRM API - nearest point fed into routing

I am using the OSRM API to (1) determine the nearest point on a road segment from a give random point with http://server:5000/nearest?loc=_lat_,_lon_ The returned coordinates are used then as an ...
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1answer
1k views

ArcGis Server Java script API error code 500 while using proxy.ashx on one particular server

I am looking for help with using proxy.ashx in Javascript API on one particular server at a client site. We have a GP service that the proxy is used to access (when request is more than 2048 ...
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1answer
59 views

Free API or database for Continent, country, city, region/state?

Is there a database or API that can provide: Continent, country, city and region/state? It should also have the country codes in ISO format. It would also be great if if could all be in one file for ...
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7answers
2k views

What map source/API/tools are recommended to create Web GIS/Mapping application utilising Microsoft technologies? [closed]

I'm researching about technologies (around Microsoft tech) to create mapping application and would like to have advice/suggestions. Brief requirement to build mapping application with Microsoft ...
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1answer
303 views

Converting CAD to map tiles

My team is working on an application that has a map feature, and we want to extend this feature greatly. Among other things, we want the user to be able to load a CAD drawing, and place it on the map. ...
2
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0answers
295 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 ...
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1answer
30 views

Where can I find a list with beaches which include coordinates?

I use World Weather Online marine API to get wave height of different beaches. This API provide data by coordinates and I need a list with coordinates of beaches.
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2answers
3k views

POI Datasets for North America

I use foursquare because it contains a lot of POIs. Which database do you use when you need a point of interest in North America?
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0answers
21 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], [-78....
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2answers
54 views

Latitude/Longitude to city and zip, batch convertion

I have ~10 mln lat/lon points, and I need to extract city and zip code from them. I can do this with OpenStreetMap using the Nominatim API (using something like http://nominatim.openstreetmap.org/...
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0answers
44 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 ...
17
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2answers
206 views

Best-practices for databases and APIs with geographic data spanning the antimeridian

What is the best-practice for storing geographic features (lines, polygons and their multipart equivalents) when these features span the antimeridian (±180° longitude), and need to be sent to and ...
4
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2answers
429 views

Is there a public API that can be accessed with Python and will geocode Points of Interests?

I recently downloaded tagged hospital data from OpenStreetMaps.org using the API. Some of the data have a 'node' tag which are attributed with a lat/long while other data are tagged as 'way' format ...
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1answer
36 views

API provider for getting coordinates automatically?

I need to get the coordinates of some accommodations automatically (and not by extracting them manually from, e.g., Google Maps) and then import them in QGIS. I've already seen that TripAdvisor has an ...
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1answer
18 views

Where can I find tower information

I want to find geolocation with GSM Cell information. The device I have can be able to send this data to me. Anyway, I need tower information to find locations and calculate triangulation. I tried ...
5
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1answer
988 views

Geotagged tweets and Twitter API

When I do a timeline query using the Twitter API, http://api.twitter.com/1/statuses/user_timeline.xml?screen_name=MyTwitterName the geographic component of the reply looks like this: <geo>&...
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0answers
15 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 ...
4
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2answers
259 views

How to download sentinel products using the API

I want to be able to automate or batch download Sentinel data (in particular S2). I am trying to use the OData protocol as described in the Sentinels Scientific Data Hub user-guide on APIs and batch ...
56
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6answers
32k views

Should I use OpenLayers or Leaflet?

I was debating with one of my collegues on OpenLayers v/s Leaflet. I made a point that OpenLayers is much better API if we wish to build a project, where you need direct connectivity to the Geoserver ...
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2answers
26 views

Assigning variables into a API text string postgis

I am trying to assign values to variable in PostGIS. I have a API similar to: example I want to create a trigger that parse the x,y coordinates from my geometry column to a field containing the ...
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0answers
21 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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1answer
23 views

Getting height data in XML of fixed points in The Netherlands

In Holland we use a tool offered by the government to get the height data based of NAP (Nieuw Amsterdams Peil), the tool works but it's kind of clunky and inefficient. http://www.rijkswaterstaat.nl/...
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1answer
96 views

Alternative overpass api for OpenStreetmap locations query?

Currently i use the overpass api to query for "leisure=playground" ways and nodes to display them on a map in a webapp. The problem is, first of all its very slow (even with querys limited to a high ...
3
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0answers
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", ...
4
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0answers
24 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 ...
2
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0answers
62 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 ...
5
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1answer
141 views

Export .qml file using QGIS API

Im loading a shapefile using the method QgsVectorLayer() and adding a style to it using the method loadSldStyle() and the path to the sld file. So far so good. What I want now is to export that style ...
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1answer
157 views

Is there a web service to get the area of a city?

I'm looking for an api/service/db that contains the surface area of every city in the world. For example, http://en.wikipedia.org/wiki/London, the box on the right contains that information. I've ...
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1answer
16 views

Discovering gravimetric station data, including location and measurement?

I would like to refine an precision estimate of local gravity based upon current GPS position. Ideally, similar to the National Weather Service API, I would like to interrogate a server with a REST ...
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0answers
11 views

Which GIS map server software to use? [duplicate]

I want to build a small GIS web application, but i am really confused over which GIS map server to use. I am not sure whether to build my own map server or there are any online services which allow me ...
1
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1answer
68 views

Cartdodb change public map in real-time with SQL query

I'm a data science student working on my capstone project. I'm new to CartoDB and have been playing around with their API a bit but can't seem to find what I'm looking for. I have created a public ...