Questions tagged [development]

Concerned with the process of creating and subsequently modifying and maintaining software and systems.

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How to use Java for desktop GIS development on Linux system

I need to use Java language for desktop GIS development on Linux system. I need to perform read and write operations on FGDB databases, rasters, and vectors. First, I tried to use GDAL, but GDAL is ...
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1answer
38 views

Accessing features in a cluster group in point cluster symbology

I would like to get a dynamic stat value on attributes using point cluster symbology, like it is exposed in this topic QGIS 3.10 - Point cluster symbology sum attribute Unfortunately, the answer ...
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1answer
44 views

Creating geospatial app for both iOS and Android [closed]

Does anyone have any experience or solid foundation on how to build geospatial apps that can be utilized through app stores? Specially, I am searching for a way to present simple, publicly available ...
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1answer
45 views

Does anyone have a categorized Geographic coordinate system List?

We are making a custom desktop application which will project a selected GDB or shapefile to a selected coordinate system. This will be a custom app since most of the users will not have access to GIS ...
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44 views

QGIS plugin: are project variables creatable and writable

I like to develop a plugin and made a github repository. Upfront: this is my first time and haven't got a clue yet. This is my target: This plugin is intended to be used in QGIS. QGIS has the ...
3
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1answer
1k views

Compile and load QGIS3 plugin

Win7 x64, QGIS 3.4 installed through OSGeo4W with 'Advanced Install' Here's my workflow: Get the template directory from PluginBuilder3 Navigate to this folder in the OSGeo4W Shell Use call "...
4
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1answer
1k views

Splitting rectangles into a desired number of parts in QGIS

I'm working on a project using QGIS and there is a process that I'd like to try to automate. I'm working with the "rectangles,ovals digitizing tool" plug-in to make perfect rectangles. The next step ...
2
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1answer
155 views

WAB Developer Edition Header Controller widgets loading onscreen incorrectly

Has anyone ever had an issue with Web AppBuilder Developer Edition where the widgets in the header controller not loading in their proper location? Sometimes on initial startup of the browser the ...
2
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1answer
465 views

Android application development by using OpenStreetMap [closed]

I have managed to install my own tile server for one country and we can see the map, it's working. The END Goal is, we will build a vehicle tracking software by using our tiles. Currently we are on ...
3
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1answer
465 views

Reading Point object under different environnement

The problem I create a GIS model which works fine on my dev environnement. When I push my app to my production environnement I get an GEOS_ERROR GEOS_ERROR: ParseException: Invalid HEX char. here is ...
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0answers
220 views

QGIS Custom Qt Widgets on OSX

When I install QGIS on windows I get a bunch of custom widgets in Qt Designer On OSX I can't figure out how to get those same widgets to appear in Qt Designer. I have set my environment variables ...
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2answers
1k views

Refreshing web appbuilder widget during development

I'm beginning to learn widget creating in Esri's Web Appbuilder for ArcGIS, but I'm having some problems getting the code to display when I make changes. Coming from a Visual Studio-based web/...
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0answers
82 views

Scaling postgresSQL database when searching polygons against points?

I am using our single server - CentOS 6.6 x64 16 CPU 24 GB SSD (PostgreSQL) 9.4.1 as our GIS database processing engine. This is part of the PostGIS software package installed on the server. I am ...
3
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0answers
558 views

How To Check if in Edit Session using Python [closed]

I am currently working on a tool that uses the updateCursor function but the tool needs to be in an edit session to use. However some who may use the tool may end up not being in an edit session ...
2
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0answers
350 views

Where to Start: .Net(Xamarin) map viewer with cached map and overlay ability [closed]

I am new to the whole GIS topic. Two days ago, I was asked to develop a map viewer. I know that it should be a Xamarin Application it should display a local cached map (a vector map) I should be ...
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0answers
348 views

Menu Bug in QGIS Plugin Development [closed]

I'm trying to teach myself to make my first QGIS plugin. I used the Plugin Builder to create the base python files, and the plugin seems to work fine when I press the toolbar icon. I'm now trying to ...
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107 views

Amending existing plugins to match Qgis 2.16+ fTools removal

Part-time development started about a year ago to create an add-on for Qgis. Many of this plugins capabilities are written with fTools commands. I am wondering if there is a recommended document to ...
0
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1answer
233 views

Geonode custom development

There is not much information in the form of documentation on http://geonode.org/ development. I need to do some custom "App" development for geonode so that my users can have more functionality ...
6
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2answers
441 views

Why does the qgis LTR release date lag behind the current release?

This is just a simple curiosity but I haven't been able to find an answer. Qgis 2.14 will be the LTR, but when it was released it was posted as the current release with 2.8.7 still as the LTR. Will ...
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0answers
1k views

Leaflet drag scrolling on mobile [closed]

My leaflet map is between a navigation bar and a chart displayed underneath. Unfortunately after recently incorporating leaflet-1.0-beta-2 my responsive layout is not working out on mobile devices ...
2
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1answer
229 views

Writing a QGIS Processing Provider

Due to limitations in the processing script framework (for example, inability to specify an optional field) I'm thinking of writing a Provider. I found the example ExampleAlgorithmProvider but no ...
1
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0answers
360 views

Flat Map that can go thru North Pole

Is there any map SDK or tool that can show the navigation that passes through the north pole in a flat way? Basically If I use a Mercator projection map it is only flat and cannot show the north part ...
3
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0answers
340 views

Some layers won't load when running application out of QGIS. "Item has already been added to this scene"?

I'm developing a basic application out of QGIS and am having trouble getting my code to generate all the layers I have set. Currently it only generates two of the four layers: "self.basemap_layer", ...
1
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1answer
111 views

ArcGis Runtime (.net) powered REST-services?

I am currently involved in a project where we need a few services for complex geometry processing. At the moment, some services has been implemented as Python GP-tools and deployed on an ArcGIS ...
4
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1answer
2k views

Is there an equivalent of GeoDjango for Flask or other Python web frameworks?

I have experimented with GeoDjango, but I think nobody would be surprised if I said there's quite a steep learning curve. I prefer Flask, which I also know much more than Django anyway, but I couldn't ...
1
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1answer
365 views

ArcGIS Runtime or ArcObjects - which should I learn to become a GIS Developer? [closed]

I'm a GIS analyst hoping to upgrade to GIS Developer some day. I hope to make this switch for a few reasons: I think I can earn more money as a developer (generally true?). I'm tired of scrubbing ...
3
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0answers
428 views

Testing tools to simulate user map browsing / stress test tile server?

are there any online/offline tools that would simulate user map browsing behavior, possibly concentrating on certain areas or random? I am trying to stress test a tile server.
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0answers
54 views

Digitising - Separate fill and line opacities (or remove fill)

I have a client who specialises in aerial photograph interpretation and is in the process of moving from AutoCAD to QGIS. They find the auto 'fill' when digitising polygons really disruptive and ...
1
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0answers
349 views

How to customize and add additional features in GeoNode [closed]

I need some advice on how to start customizing my GeoNode installation. I tried reading up on GeoNode documentations on how to do it but it always boils down to customizing or adding to the Django ...
1
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1answer
421 views

How to create custom items or commands for a context menu

I have read and searched the web for an answer, but nothing is working. so I need someone's help please. I have an extension that implements I command, I have the method OnContextMenu(x,y) which ...
1
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1answer
102 views

Learning resources - Getting started with development for ArcGis Online

I would like to develop search widget / find task for feature layer at ArcGis online website. I would love to get some resources for that (reading links, videos) for getting started. so far i've ...
1
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1answer
477 views

Run C++ standalone application in debug mode

I write simple C++ standalone application using QGIS. It works and render vector layers from PostgeSQL database. #define CORE_EXPORT __declspec(dllimport) #define GUI_EXPORT __declspec(dllimport) #...
2
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1answer
361 views

Qgis 2.7 (Dev) feature rotation?

Curious if the following code has a blatant error that has been overlooked with respect to rotating a single polygon feature. The *.geometry().rotate(...) returns a '0', indicating it was successful -...
1
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1answer
86 views

Keeping dev scripts in sync with projects

How do you keep your development scripts in sync with your source code management (SCM) and your projects? For instance right now I have things like D:\code\reusable-stuff that goes to an SCM (e.g. ...
26
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1answer
22k views

WMTS : Convert geolocation (lat, long) to tile index, at a given zoom level?

I wanted to know how to get the indexes (x,y) of a WMTS tile for a given geolocation (latitude, longitude) and zoom level. For exemple, I have a POI located at (48.675, 2.7), I want to get the ...
3
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1answer
3k views

How to develop C++ standalone QGIS C++ Application

I want to integrate QGIS in QT\C++ application. I try to write basic C++ application to render map and build it using MSVC 2010. class PostGisViewer: public QMainWindow { public: PostGisViewer(): ...
3
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2answers
208 views

QGIS Installation on Windows

I'm newbie to QGIS and to this forum. I want to develop application using Qt on QGIS to real time updation/mapping of a symbol using GPS co-ordinates. Initially i have installed QGIS on Windows 32 ...
6
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3answers
998 views

Seeking pretty icons for GIS development? [closed]

I am developing GIS software and I want to build a pretty GUI for it. Where can I found some pretty icons for my GUI? I mean for example, icons for adding a vector or raster. I mean icons like ...
2
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1answer
200 views

Most accurate GPS hardware for less than 1 mile radius [duplicate]

I apologize if this is a duplicate but I can't find a good answer or area to know where to find the correct answer. I am looking for the technology or hardware around wearables or similar technology ...
3
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2answers
4k views

GIS/Developer Skills [closed]

Currently, I have a strong knowledge ArcGIS/Python/JavaScript and basic RDBMS. I'm currently taking some database theory/sql classes and trying to figure out what course I should take next, I'm ...
2
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1answer
157 views

App using latitude and longitude, should decimal degrees be separate a selection from metric?

I am coding a mobile app that displays coordinates in parts of the interface. We currently have an option to toggle between Imperial and Metric. But I am unsure if decimal degrees (vs D/M/S) should be ...
4
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1answer
146 views

Develop offline GIS program/annotator

I'm looking for a package to develop a simple offline GIS desktop application that works on a tablet/laptop for using it on the terrain (namely for annotating existing maps). The program has ...
1
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1answer
6k views

DTED Level 3, 4 or 5

Does the specification for DTED 0 - 2 also apply to 3 - 5? I know the finest resolution supported by spec MIL-PRF-89020B is 0.1 arc-seconds which I think would barely cover up through DTED level 4, ...
5
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3answers
4k views

How to setup a debugger for QGIS Plugin development?

As the title of the question implies, I wish to know how to set up a QGIS Python Plugin Debugger so that I can develop plugins more efficiently. Any information regarding this would be much ...
1
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1answer
352 views

Best Platform to develop QGIS Python Plugins

I am currently developing QGIS Python Plugins in a Windows 7 64-bit environment. Having said this I am stumbling across various issues which from what I have been able to gather have a less tendency ...
0
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2answers
2k views

How to display data from a feature?

I want to display data based on the feature currently selected/clicked on. I am following a tutorial from http://www.qgisworkshop.org/html/workshop/plugins_tutorial.html. It initially shows you how ...
2
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1answer
861 views

Problems with inspect element in browsers

I use google chromes inspect element for debugging. I have a map displayed on my page with 1 base layer (osm) and 2 overlays (wards, points) and a highlighter control. The map displays and works fine. ...
1
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2answers
785 views

Can anyone point me to good development environment in Linux for client side search with Flex or JavaScript?

I want to create a client in MapFish, and/or opengeo, using OpenLayers, maybe Cartaro and would like to play in a development environment using Flex or JavaScript. I need to take my data, make it ...
2
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1answer
2k views

How to Install the ArcGIS JavaScript 3.2 API library on an IIS Web Server? [closed]

I would like to deploy Server API for JavaScript 3.2 in my server to use it in my asp.net project instead of connect to server What are the steps to be followed in deploying it to a local WebServer?...
3
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0answers
415 views

Geoserver REST example not working

I am trying to follow the example to create a new REST service in Geoserver: http://docs.geoserver.org/stable/en/developer/programming-guide/rest-services/implementing.html After building, accessing ...