0
votes
0answers
4 views

Can I set processing (sextante) script default output vector data extension?

I am trying to create a tool that converts text data to KML by writing a Processing script. All works great, but I was wondering, if there is a way to set a defaut file extension for output vector ...
1
vote
1answer
9 views

Getting feature details from Geonetwork

I am using the metadata catalogue Geonetwork which deals with the metadata. As far as I can see this metadata contains details about createdate,changedate,origin,title etc but does not contain ...
1
vote
0answers
14 views

Parameters in a SQL View (Geoserver) and WFS Layer (Openlayers): can't get them to work properly

I'm relatively new to GIS, openlayers, geoserver and javascript in general. I have the following problem: I need to display a choropleth map by coloring the different areas in my map based on a ...
0
votes
0answers
30 views

Looking for a data source for all villages, towns and cities in the world

So, I've been working with Geonames data dumps, but I am finding that they are either not complete enough (cities > 1,000 population), or too complete. Here's an example of being too complete: ...
1
vote
1answer
15 views

Leaflet/MarkerCluster plugin - how do update the HTML content of a DivIcon?

In Leaflet, I am using the markercluster plugin, in which you can use the DivIcon class to display custom icons for the clusters. You can set your own HTML for these clusters. However, I can't find ...
2
votes
0answers
23 views

Unable to print feature layer from my ArcGIS Server

I am trying to print a map that I made with ArcGIS Server 10.2 and ArcGIS javascript API. If I remove the layers from ArcGIS Server it works (with ESRI basemap) The problem is that I keep getting an ...
1
vote
1answer
70 views

How to work with accentuated strings in Python scripts in ArcGIS Desktop Field Calculator?

` pre-logic: def myCalc(name,nameVal): if (name == nameVal): return 1 else: return 0 var_name= myCalc(!Epulettipus!,"Lakóépület") ` This doesn't work with accentuated strings. (But ...
0
votes
1answer
13 views

What is a purpose of parameter 'separater' in mapnik csv plugin datasource?

What is the purpose of the parameter 'separater' in the Mapnik CSV plugin DataSource Example of the code: parameters p; p["type"]="csv"; p["inline"]=quotedStr; ...
0
votes
0answers
9 views

Google Maps and Displaying Coordinates while drawing?

Currently we are doing this on a project: google.maps.event.addListener(map, 'mousemove', function (event) { displayCoordinates(event.latLng); }); function displayCoordinates(pnt) ...
0
votes
0answers
2 views

How I use point symbolizer for styling in mapnik c++ source code?

I have tried point symbolizer for styling in c++ mapnik source code ,the given code line : roads2_rule_11.append(point_symbolizer("/home/razaliaqat/raza.jpg")); But it is giving an error given ...
1
vote
0answers
15 views

How to compute satellite coordinates (lat,long) given antenna's coordinates, angles and satellite height

Given an Earth station (antenna) coordinates (in lat,long) ant its Elevation (El) and Azimuth (Az), how to compute the satellite coordinates (lat,long), known its height? For simplification purposes, ...
0
votes
0answers
19 views

Labels aren't displayed for layers inside a group

I'm using a python script to create an empty group layer in the current map document, add some layers to this group and update their symbology from an existing .lyr file. I also want to to turn on ...
2
votes
2answers
35 views

Setting layer visibility in QGIS Python API

Im having a problem toggling the visibility of map layers in pyqgis (2.4). I have a simple interface, just the map canvas, no legend, and basically a radio button that toggles between two raster ...
1
vote
1answer
18 views

Example of how to display a Cartodb layer (using the layergroupid) after initializing a named map?

I have successfully created a named map. I can initialize the map (as seen here), and I do get the correct response. Now, to my problem. How do I show this layer (using the layergroupid I got as a ...
0
votes
0answers
20 views

Error Esri.FileGDB.FileGDBException Message=General function failure

Whats wrong? Code: Geodatabase geodatabase = Geodatabase.Open("C:/tmp/tmp.gdb"); Table table = geodatabase.CreateTable("StreetInfo", "C:/tmp/Table.xml"); xml: ...
4
votes
1answer
48 views

How to create a cluster of crashes?

I have a shapefile with 52K points of road accidents, between 2007 and 2012. Each accident has a severity index. I want show clusters of 5 accidents (at least), for each year, that have a severity ...
2
votes
1answer
20 views

Determine mudflats area from remote sensing images

I need to determine the mudflat area for a group of small islands in the Red Sea. I have read some publications and it seems to be possible using remote sensing, for example Landsat. But I am not ...
0
votes
1answer
19 views

GWC tiles getting deleted for grouplayer when i change one layers style that is associated with group layer

can anyone face issue of GeoWebCache (GWC) tiles automatically getting deleted when a layers style is changed that is associated with group layer. Normally it should not happen like this., but i have ...
0
votes
0answers
11 views

How to move to next feature by pressing right click

I have written the python code for adding vector layers,for getting and selection of features,for zooming. But my doubt is how can we write a python program where pressing the right click of mouse ...
0
votes
1answer
25 views

Leafletjs Invalid GeoJSON object

I am using the following coming back from a socketio connection: L.geoJson(data.streets, { onEachFeature: map.onEachFeature }); It's throwing the following error: Invalid GeoJSON object. My ...
0
votes
2answers
46 views

Writing Python script in Field Calculator in ArcGIS Desktop?

I'm a programmer, I have programmed in C#, Java, but not with Python. And I'm not a geographic worker. How can I write a python script into Field Calculator to be able to check the other column value. ...
0
votes
1answer
14 views

Enable ecw QGIS 2.4 on Linux Mint 16

I upgraded to Mint 16 and QGIS 2.4 and unable to get ecw to work following various guides available. Anyone willing to explain how to and why it is so hard. I run it on a windows machine out of the ...
0
votes
0answers
5 views

how to compile i.atcorr separately without compiling whole grass

i am working on grass. i need only i.atcorr module. should i compile whole grass 6.4.3 or any option is there for separate module compilation. I tried to compile entire gras6.4.3 on windows system but ...
0
votes
1answer
23 views

openlayers display Control.MousePosition on div.olMap

I have a map displayed in a div. I have a small div named coordexterne displaying mouse position. I try to put the small div on the map so to speak above the map. Until now, the small div is always ...
0
votes
1answer
28 views

Copying XY to clipboard using Python Add-In (ArcMap)

I am trying to create a simple tool to copy XY from where i click the mouse button. What i have done already is: create add-in files using Python Add-In Wizard create toolbar and tool inside it in ...
0
votes
0answers
5 views

ArcGIS editor for openstreetmap missing in ArcToolbox 10.0 [duplicate]

The installation of the editor was successful but a new OSM tool doesn't appear in the toolbox. I opened the toolbox --> add toolbox - managed to the installation folder but there i find nothing that ...
0
votes
0answers
7 views

How to get attribute details from shapefile in ms4w?

server through my initial search I do some basic coding. Now my problem is how to show the attribute details from shapefile. I can able to get map but I am not able to get names. below is my code: ...
0
votes
0answers
10 views

Programmatically draw first vertice of a path with OpenLayers

I'd like to help the user to input an orientation for a segment with OpenLayers. I have that form where user can input the bearing for a point, but I would like to help him by : start drawing the ...
0
votes
0answers
17 views

Get layer name by click on features OpenLayers3

I want to add selec interactions to my OL3 map. Adding two different select interactions like this is not working. Only the second one works. Like this: var select = new ...
1
vote
1answer
14 views

Interpolate dxf polyline vertex elevation from DTM?

I am working on several autocad polylines (with several vertices...) that have the exact N,E coords but now I would like to add the elevation data for every polyline's vertices from a dtm. I thought ...
0
votes
0answers
5 views

How to download products from ESA's scihub using OData protocol?

How one can download files programatically using scihub OData protocol and cURL (or other library/program)? You can get a descriptive xml response of the API for a dataset can be obtained by this ...
1
vote
0answers
21 views

How to use GeoWebCache tiles with default geoserver url?

I am having GWC tiles access issue when integrated in another application using GWC url. //systemname:8080/geoserver/gwc/service/wms. The error is given below. I have created new grid set ...
1
vote
0answers
18 views

How to use GIS data with CGAL?

I read a few posts here at GIS.SE that points to useful algorithms in CGAL. I'd like to test algorithms in CGAL such as medial axis transformation/polygon skeleton extraction, but the examples on the ...
1
vote
1answer
50 views

How to extract and save using QGIS?

I am new to QGIS and just downloaded QGIS 2.4 Chugiak. I am practicing QGIS by using training manual, as mentioned in above subject. I have questions in regard with the sentences in page 7: You ...
0
votes
0answers
8 views

How to enable/check ArcGIS Runtime option using ArcObjects?

I want to enable ArcMap/Customize/ArcMap Options/sharing/ enable ArcGis runtime. How do I do that programatically? I can actually call ArcMap options wizard using ICommandItem and UID but I ...
2
votes
2answers
32 views

Get cell size for raster in QGIS

How do you get the cell size of a raster in QGIS? This is a simple matter in Arc, just look at the properties. QGIS has properties, but no raster cell size. Thanks.
1
vote
1answer
16 views

Removing disconnected cells in a stream network raster using ArcGIS

I've got a predicted stream network raster with cells values 0 (not a stream) and 1 (is a stream). My end goal is to create a network of connected polylines, but unfortunately there are some areas ...
1
vote
1answer
23 views

Export background tile map to raster file

In QGIS I managed to display the ship traffic density from marinetraffic.com as a background tile map using the TileLayer plugin. Here is my TileLayer.tsv file: #title credit serviceUrl yOriginTop ...
1
vote
0answers
25 views

Point Distance analysis tool in ESRI ArcMap is not calculating all observations

I'm grading homework for a number of students who are doing the same GIS assignments, and in the latest one, three of them had answers that varied from the rest of us when I looked at their statistics ...
5
votes
2answers
67 views

Is there hydrologically correct water-course data for Africa

I was wondering if there are any hydrologically correct river-channel data available for download for Africa? By hydrologically correct, I mean the topology should be correct. Connected river ...
1
vote
0answers
12 views

How to add CADRG RPF A.TOC Raster Data Source in Geoserver 2.6

I'm currently trying to add CADRG as a datasource in Geoserver 2.6. I've installed the necessary GDAL plugins (1.9.2) for Geoserver 2.6. I placed my RPF folder in C:\Program Files\Apache Software ...
1
vote
1answer
33 views

Creating a raster based on a where clause

I am writing a script that deals with a raster that will need a subset of the raster outputted and the rest of the original raster needs to be "no data". To clarify, say, there is a raster and ...
1
vote
1answer
14 views

ol v.2.13 - Selecting features with draw or zoombox

I'm attempting to add a feature to a legacy mapping project. I need the user to be able to draw a rectangle and have the features/markers inside of it selected and pushed into the selected array. Is ...
1
vote
0answers
46 views

Generating Canal on DEM using ArcGIS for Desktop?

I want to generate a canal going from point A to B with a given slope. The canal should be on the underlying DEM. Is there any way to do this with the tools in ArcGIS 10 or do I have to do it ...
-1
votes
1answer
20 views

export from json file the coordinates

Hello i need help i cant export and print the coordinates , the format of json is came from a query in a database the format is ...
1
vote
1answer
29 views

Mobile device GPS into a PDF Form

This is an issue I've been trying to solve for a while and am told it's not possible. I have made a PDF form with an input box for coordinates. As the form is for use on mobile devices, I would ...
2
votes
2answers
75 views

How can I identify types of crops in agricultural raster dataset?

I have some 2014 MrSID files from the National Agricultural Imagery Program (NAIP) that I've converted to TIFF files. I want to use them to find the area of tomato farms in a watershed. I'm using ...
2
votes
0answers
18 views

Need to run a Groundwater Analysis Based on Points to a Raster

The title sounds daunting, but this task really isn't. I have well samples over a decade in certain locations through an area. These samples contain a value of that element at that point in time. I ...
0
votes
0answers
14 views

OGR Virtual Format - How To Do Join

I have to kluge together a bunch of disparate data sources, and think the OGR Virtual Format may be an elegant solution. In looking at the documentation, I can't seem to find a way to join 2 layers ...
1
vote
1answer
29 views

Definitive list of Proj4 supported coordinate systems

I need to determine the minimum set of coordinate systems supported by all tiers of my project's stack. I have a list of EPSG codes supported by Oracle and GeoServer but I'm having trouble finding a ...

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