The act or process of planning or writing a computer program.

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10
votes
9answers
6k views

What programming languages are used by different GIS platforms?

Suppose a programmer has no knowledge of GIS, but wants to leverage his/her programming skills to get into GIS. Please list different GIS platforms, packages, etc. that use a particular language. (I ...
-3
votes
0answers
31 views

recommend a GIS PROGRAMMING master degree [on hold]

Is there any on campus master degree in USA with concentration on GIS programming ( desktop,web or mobile GIS programming)??? It can a information system master degree with concentration on GIS ...
1
vote
2answers
752 views

Getting all vertex lat, long coordinates every 1 meter between two known points using PHP?

I am currently using php to try and write code that will take a start point and end point latitude and longitude coordinate pair in decimal degrees and calculate the latitude and longitude of every ...
1
vote
0answers
25 views

Best way to get max distance between a pair of nodes in a static set

I need to find the maximum distance between a set of nodes (given Lon/Lat coords). Currently, I'm looping through every combination of node and if the distance between those two nodes is greater than ...
2
votes
1answer
90 views

Remove features inside a feature in shapefile using python (UNION, CONTAINS methods)

I have created a shape file from raster. The shapefile was generated using contours detection. I am in the process of automating feature detection using python and open source libraries such as ...
4
votes
1answer
99 views

Implementing NNJoin in Python

I am curious to know on how to implement NNJoin into the python code. I have created a point shapefile using shapely. I have another shapefile which is a centerline and is used as a reference line. ...
1
vote
0answers
18 views

Local Maxima (or Pour Point) Pixel Value extract in Raster

I am doing watershed & pourpoint using python GDAL. I have calculated Fill, Flow-Direction & Flow-Accumulation using Python & GDAL. The next is to get Pour Point in certain window ...
1
vote
1answer
115 views

Where I can find API for Countries, States, Cities and airports

I'm looking for an API or data source (or multiple sources) that provide the following information: Countries Information: ISO code, Region, Capital, population, languages, currencies and climate. ...
1
vote
0answers
55 views

How to rearrange FID numeration programmatically

I've got a feature class Now, I delete the selected features programmatically using pFeature.Delete : Is there any command or function in VBA which rearranges the FID field and makes the ...
1
vote
1answer
43 views

Can't fill the attribute table programmatically

I've got a shp-file, here is it's attribute table: It's easy to fill the attribute table of some pFeature programmatically if I get the feature from cursor: For example, "RECNO" Field(3) has a ...
0
votes
1answer
42 views

OS Web GIS for a travel blog [duplicate]

I have had this idea for years now and would finally like to fulfil it! I was always bothered by text-heavy travel blogs. Therefore, I aim to have a Web-GIS based travel blog in two years time. The ...
1
vote
0answers
38 views

Dividing points into Polygons based on an Attribute of that point and its relative distance to other points and a facility

I have random point data (school locations) that I need to divide into 'n' polygons (regions) based on: their distance to a facility, their relative distance to each other, and an attribute of that ...
0
votes
0answers
25 views

Connecting 1 point to many points following a route

I am using ArcGIS 10.2 Basic. Is there a way of connecting 1 point (A end point) to many other points (B end points) but following an existing line/route. The B end points all have a field that ...
0
votes
2answers
79 views

How to fill combo box of a form with the map layers name

While writing the code for adding all the layers in arcmap into combobox of a form, I am getting the error: 'Bestaurents.frmRestaurentviewer' does not contain a definition for cmblayer and no ...
11
votes
10answers
3k views

What are the advantages of using Rails for a GIS/mapping application? [closed]

I've heard some good things about Rails, but I don't know much about it yet. There are only a few questions about Rails on GIS.SE (and there's not even a Rails tag). Is it worthwhile to learn about ...
1
vote
0answers
63 views

Disable right click “Open attribute Table” in ArcMap using arcObjects

I have a requirement on the ongoing project to allow the tables to be accessed by only the users with right privileges. So I am looking for methods to disable adding tables to view programmatically. I ...
2
votes
1answer
87 views

How to correctly use ArcObjects to search or to obtain a count (IQueryFilter) from a selection set?

This only appears to be an issue with Personal Geodatabases (MS Access back end)... I need to search within an existing selection set to populate an ICursor. My main objective is to test whether my ...
0
votes
0answers
20 views

How to make coincident a vector layer and a bitmap constructed from Google map tiles using programming

I can make a bitmap file from tiles that I receive from Google map using X_Tile,Y_Tile and Google map zoom parameters successfully.First I use a vector layer to find map extent in UTM,so I have ...
5
votes
3answers
435 views

Replacement for ArcScripts

Does an equivalent of ArcScripts exist? I know of the the ArcGIS resource center and "Code Galleries" but does something that equates to ArcScripts where users share useful ArcGIS code exist? The new ...
6
votes
3answers
3k views

Creating square grid polygon shapefile with Python?

I have the following coordinates minx, maxx, miny ,maxy = 448262.080078, 450360.750122, 6262492.020081, 6262938.950073 I wish to create a square grid of size 1 m using python. import math ...
3
votes
1answer
205 views

Problems with Reclassify and RemapRange in ArcPy?

I'm having a bit of trouble with a script that uses ArcPy. I keep getting the following error: ExecuteError: ERROR 000622: Failed to execute (Reclassify). Parameters are not valid. ERROR 000628: ...
2
votes
1answer
78 views

Using thread lock when implementing Enabled void in ArcGIS Command?

I've noticed that that ArcGis Commands are activated asynchronously. So I supposed that there is a chance to corrupt memory without using thread locks when overriding Enabled void of custom ArcGIS ...
4
votes
1answer
532 views

QGIS Standalone C++ Application with Qt: “The program has unexpectedly finished”

I'm trying to develop an Standalone Application with Qt and QGIS API. There are several code examples that should work, but they don't. The Problem is that everytime I use "QgsApplication" the ...
1
vote
2answers
551 views

Export Page Layout to PDF using ESRI add-in with vb.net

Note: This message is cross-posted on geonet (https://geonet.esri.com/thread/127249) I have been trying to convert a vba script to vb.net but I have hit a roadblock and I'm hoping someone can help me ...
0
votes
0answers
41 views

Join GeoJson with additional info files

I have a GeoJson-file [1] with multiple polygons exported from OpenStreetMap that will be updated regularly and I want to add additional information (to the properties) from another file [2] (JSON ? ...
0
votes
3answers
512 views

How to remove a feature class or table from the TOC? C#

This seems like a really simple process or snippet of code but the only thing I can find is the ClearLayers() method to clear all of the layers from the TOC. Basically what I want to achieve is to ...
1
vote
1answer
157 views

What extra CS courses should a GIS Developer take? [closed]

I'm a CS major who is minoring in GIS to become a GIS Developer. I was wondering what later CS (or Software Engineering and Computer Engineering) courses would be useful to a GIS Developer? For the ...
20
votes
5answers
2k views

I'm new to GIS and I'm looking for a developer-friendly web GIS [duplicate]

I'm a recent Computer Science graduate who prides himself on his knowledge of software development and problem solving, but has no idea how GIS systems work. (Read: I'm a programmer.) I've been ...
2
votes
2answers
225 views

ArcObjects: ExportOperationClass causing error and not exporting

I'm trying to export each row in a shapefile, but I get an error I haven't seen before (see below). I feel like it might be the labyrinth of interfaces that I have to cast between that may be causing ...
1
vote
0answers
60 views

JavaScript _.each function not showing correctly [closed]

Can't seem to get this to display the correct way. The correct way would be Day/open/hours. geojson displayed below: hours: { monday: { close: "18:00:00", open: "10:00:00", call: ...
1
vote
1answer
56 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. ...
1
vote
0answers
2k views

Waiting on AJAX result in main JS function

So .... my main init()Javascript function has these 3 lines: sarea = GetArea(Uname,UIDfield,Table, document.getElementById("Source").value); darea = GetArea(Uname,UIDfield,Table, ...
2
votes
0answers
74 views

Is it possible to get coordinates for point from satellite image? [closed]

Is it possible to get coordination for point from satellite image using any programming language? For example, if I clicked on a specific point on a satellite image hosted on a web application, I ...
7
votes
0answers
602 views

Newbie to GIS Development in ArcGIS? [duplicate]

I am new to GIS development and was wondering if there are tutorials available for development in ArcGIS 10. I have some experience writing simple scripts in python and fooling around in model ...
4
votes
1answer
519 views

ogr / osr for node.js / javascript

I use a python module I created that does tests for point in polygon. It uses the python osgei/ogr and osr modules. Specifically, I use the following elements of these modules: ...
7
votes
2answers
866 views

Is it a bad idea to hold references to ArcObjects inside business classes?

According to best practices is it a bad idea to cache features and geometries inside business objects? If it is bad, what is the alternative way? References to features may be replaced with their ...
0
votes
1answer
148 views

How do I calculate the distance of a segment of line that is inside a polygon?

I would like to calculate the distance of a portion of a line that is inside a polygon, as well as the portion that is outside of the polygon, based on from/to lat/long points on the line, and the ...
1
vote
0answers
76 views

How to find if ArcMap raised error during edit session?

I have a class extended IExtension and inside this class I catch OnCreate, OnDelete and OnChanged and OnStopEditing events of Editor object of ArcMap. However I need to know if ArcMap has raised any ...
3
votes
1answer
218 views

If do not want to use pgRouting then what?

Good evening fellow GISers, I am interested in creating an online routing application. So supposing I have all the data I want into a postGIS database and loaded onto GeoServer and I am willing to ...
4
votes
1answer
381 views

How to check if points are concyclic before solving three point resection

I'm trying to write a function that solves the three point resection problem using Tienstra method. I gathered a lot of papers and books about this problem, and each one of them states: If the ...
2
votes
1answer
38 views

Is it better to define object properties or layer properties?

I have a question, but it is difficult to phrase. I am picking up GIS methods as I go, and I have run into this problem frequently. Please excuse me if I am in the wrong place. When organizing ...
2
votes
1answer
173 views

How to read ASTER metadata in IDL?

I'm trying to read many ASTER images (1B mainly) in IDL (I can try in R also). I'm used to work with Landsat, but the aster metadata is complicated. I write a code with a lots of conditional that can ...
7
votes
1answer
254 views

Phenological event extraction in IDL

I’m doing phenological study using a threshold method in IDL. I have a twelve-band image in 2005 (format is in .tiff not ENVI format). Twelve-band means that monthly images (Jan to Dec) have been ...
1
vote
0answers
140 views

Vector layers without geometry in QGIS?

Using QGIS, I have set up a couple of automated layer additions via the toolbar. After adding geometry in each respective layer (point, lineString, polygon) and saving changes to the layers, the added ...
0
votes
0answers
36 views

Calculate end point Height above the MSL of the target point given a starting point, distance, azimuth and elevation [duplicate]

We need to find the end point height (from the earth surface) given the start point lat, lon, azimuth (270 deg), distance (500 km) and elevation above the horizon of start point (10 deg). The ...
1
vote
1answer
120 views

Extracting z values from shapefile using OGR Api

Is there an example of how we can extract the z value from a shp file given the x,y coordinate value (namely utm) using gdal/ogr c++ lib? alternatively, would it be easier if we convert the shp file ...
1
vote
1answer
131 views

How to modify existing grass gis tools and run them in QGIS?

I would like to take an existing tool of the grass tool box and modify the code to the specific needs of my task. As I´m struggling to start some kick-off would be great. How to access code? What do I ...
9
votes
5answers
5k views

Compiling Python Scripts that use ArcGIS Geoprocessing Tools?

I've been coding with Python for several months now and have developed some reasonably complex scripts for primarily geoprocessing tasks. That being said, I'm still learning a lot as I'm coming from a ...
0
votes
1answer
246 views

Free/Open-Source Archaeological Geophysics Programm?

Does anyone know a free/open source software or a GIS plugin for working with archaeological geophysics data, especially for data from a magnetic survey (magnetic gradiometer map)?
0
votes
0answers
75 views

Programmatically open an excel file when arcmap session is closed

I am looking to build a process where an excel file is opened once a user closes an arcmap session. here is my pseudocode. user makes map user closes map using Graphic User Interface 'X' button ...