4
votes
0answers
33 views

Access multiple rasters with GeoServer

I am curious if anyone knows if, and how, it would be possible to configure GeoServer to provide download (GetCoverage) capabilities to multiple adjacent rasters. A GeoServer mosaic comes close, but ...
4
votes
0answers
71 views

Adding data from PostgreSQL to Query Layer of ArcGIS for Desktop warns that given coordinate references are incompatible?

When adding data from PostgreSQL in a Query Layer I get the warning "The given coordinate references are incompatible" I have added many other layers with the same properties no problems, but I have ...
4
votes
0answers
80 views

Alternative to Delete Polygons And Extend Lines of Production Mapping?

Maybe someone knows an alternative for the Delete Polygons And Extend Lines (Production Mapping) tool or a simple way to achieve the same result but without requiring a Production Mapping license?
4
votes
0answers
86 views

Using Traffic with Network Analyst VRP

To the best of my understanding, setting a specific day under Analysis Settings for the VRP uses the Routing_ND historic traffic information. Is there some step I'm missing to enable traffic? I've ...
4
votes
0answers
76 views

Interpolating species data from sample points in a small area

I have sample data from a small site (10 acres) which shows the number of occurrences of a particular species of snail over two sampling periods (fall and spring sampling). I want to try and ...
4
votes
0answers
38 views

Null Values in Geographically Weighted Regression Analysis

Some of my explanatory variables have a few null values for certain polygons. Can GWR handle these, or should I remove the whole polygon and all data (dep, ind variables for that particular polygon)? ...
4
votes
0answers
84 views

Display a NetCDF file in 3D

Does anyone know how to display a netCDF in a 3D Scene Map in ArcGIS 10.2? something like the pretty 3d graphics at the UC I've got hundreds of thousands of points/cells with values for a stretch of ...
4
votes
0answers
51 views

How to calculate an Illumination raster for fire ignition danger analysis?

I am doing a fire ignition danger analysis using this equation that I found in Millington (2012) http://www.jmecology.com/wp-content/uploads/2014/03/33-42-MILLINGTON.pdf IR = 4H + 3V + 2I – E Where: ...
4
votes
0answers
115 views

ArcObjects : Out of Server Memory when reconciling a large edit session

One of our users has been periodically experiencing 'Out of Server Memory' errors with ArcSDE 10.0 when trying to reconcile a large edit session. VMware ESX Instance: Windows Server 2008 R2 ...
4
votes
0answers
135 views

How do I parse the file format for attributes in Raster Product Format (RPF) maps and imagery?

I'm trying to implement an open-source NITF reader (using only java, no external libraries such as GDAL or NITRO), and its mostly going OK. However I'm having trouble understanding the RPF extensions, ...
4
votes
0answers
139 views

Mask Bridge with Road

Is there a tool to create mask between bridge line/point on road? The requirement to have gaps 0.2mm between road and bridge and the offset fill with white color. For now, I add a white line attach to ...
4
votes
0answers
66 views

Is there a limit to the number of polygon points you can export to CSV in QGIS 2.4?

Using QGIS 2.4 I am currently importing a csv file with ~30,000 polygons (polygons in WKT format). I also have a United States shapefile. I have used the Clip function to get only the polygons that ...
4
votes
0answers
108 views

Has anyone used ArcGIS for 'automatically' detecting lineaments from a high-resolution (1m) DEM?

I have a set of DEM's produced from LIDAR data. I am wondering if anyone is familiar with or knew of any published research papers which looked at (semi-)automatically detecting lineaments /or ...
4
votes
0answers
126 views

Is there a “Disperse Markers” tool for QGIS?

I am using ArcGIS, but either I would like to use QGIS and maybe want to switch completely later. A have a point overlapping problem, as a result of geocoding of addresses. I have not found any ...
4
votes
0answers
176 views

Performing cluster analysis in R with Point Datasets

I am a R-Beginner, but I want to use it for some spatial statistics. I want to check the relation between the occurrence of ill persons and the existence of water in a area of interest. To give you a ...
4
votes
0answers
253 views

Printing/exporting WMTS tile layer with desired resolution / zoom level in QGIS

I have a project which uses WMTS and some vector layers in QGIS. I can freely zoom in and out, and tiles are refreshed with appropriate zoom level, just as expected. Now I would like to export part ...
4
votes
0answers
50 views

How to setup default toolbars and menu item?

I need to customize the UI for a group of users at another office. I want to turn off a bunch of toolbars and menus that are not needed. I know how to save my configurations (Settings -> ...
4
votes
0answers
516 views

Feature Service from plain PostgreSQL/PostGIS in ArcGIS Server 10.2

Using 10.2 ArcMap/ArcGIS Server on Windows I've successfully published some map services from my PostgreSQL/PostGIS data and now I want to enable editing the features through a JavaScript web app. ...
4
votes
0answers
168 views

How to select features based upon multiple values in graphical modeler?

I'm trying to create a basic model using QGIS, the QGIS graphical modeler and the sextante toolbar. In part of the model, I need to select features based upon multiple attribute values (for example - ...
4
votes
0answers
298 views

How to convert a raster (array) to a NetworkX graph and do a * search?

I want to use a slope-raster for a a_star path analysis in NetworkX. I am using Python for this project. My test raster looks like this First I read in the raster with GDAL input_raster = ...
4
votes
0answers
301 views

Weather conditions forecasting / interpolation

I'm trying to carry out weather conditions interpolations. I have information of 92 weather stations for 800,000 km2. As you can imagine the extension of land is huge and I need some kind or weather ...
4
votes
0answers
335 views

How do I install Orfeo toolbox and Qgis 1.9?

I'm having a lot of trouble getting Orfeo toolbox and Qgis 2.0 working. I followed the qgis wiki instructios, added the ppa, installed qgis 1.9 (it's beautiful, great work!). But when i tried to ...
4
votes
0answers
144 views

Find and destroy duplicate OSM multipolygon/polygons in TileMill/PostGIS

In OpenStreetMap there are sometimes multipolygons where attributes are present on both the polygon and the multipolygon relation, such as the Grampians National Park: ...
4
votes
0answers
244 views

Tabulate Area ArcGIS

I am trying to work out the relationship between the 'processing cell size' and the result from Tabulate Areas. If one uses the same as the raster cell size, and this is the same for both rasters, the ...
4
votes
0answers
501 views

Using stat_density2d with coord_map in ggplot2

In my example I am plotting a shapefile for all England & Wales, however I'm interested in the greater London area. If I allow ggplot to simply default and display the entire shapefile then the ...
4
votes
0answers
92 views

Is there a way to label a layer using its file name or layer name?

Is there a way to label a layer using its file name or layer name (if I'd change it in Layers window TOC)? I tried some functions but I'm not good on that. I have lots of shapes (lines) and it would ...
4
votes
0answers
93 views

Estimation of values for unsampled points

I want to measure biomass on a coastal mudflat. I can only access points inside the polygon. Are there any methods available that would allow me to estimate values of the points outside of the ...
4
votes
0answers
185 views

How to write an address search plugin?

I am migrating some users from MapInfo to QGIS, and before they sign off on it, they want a very simple address search in the same way that we currently have one working in MapBasic. I;ve been having ...
4
votes
0answers
725 views

Why is GDAL ECW compression much poorer than ECW compression from ERDAS

We use ECW compressor shipped with ERDAS Imagine to export Orthoimagery for our different departments. Because we are facing problems with the Imagine license server, we had to choose GDAL (built with ...
4
votes
0answers
264 views

How to create a topologically correct dataset in PostGIS (with GRASS)?

I have shapefiles which I have loaded in postgis and now i am trying to use geometric function in postgis like ST_intersect and they fail because the data is not topological correct. I have tried to ...
4
votes
0answers
140 views

Joining layers with respective elements with PostGIS Topology

Recently I have started using PostGIS topology extension, but I have some difficulties in understanding how the structure works: One of the key points is the use of "layer"s: as of what I understand, ...
4
votes
0answers
238 views

GPS data based track/trip calculation algorithm available?

Currently I'm receiving position data of moving assets every 90 or 120 seconds (depending on the asset). What I'd like to achieve now is to detect standstill and movement phases (tracks/trips) on the ...
4
votes
0answers
39 views

Where can I find more details about rasterFunctions?

I have published an Image service with ArcGIS Server 10, containing the results of an interpolation operation. The Image which is returned from the service is in greyscale. I wish to render it with ...
4
votes
0answers
308 views

What traits identify 2D, 2.5D, 3D geometries, and how can you convert downward, such as from 2.5D to 2D?

In answering this question, posed by @Burton449, I came to realize I don't have a definitive grasp on what distinguishes 2D, 2.5D, and 3D geometries. I certainly realize Z/elevation values are ...
4
votes
0answers
707 views

Microsoft Surface vs. iPad for mapping

I was recently introduced to the Avenza PDF app for iPad and I've been using it in the company I work for to help our field crews find their way around, and record waypoints and tracks. The app takes ...
4
votes
0answers
207 views

Can you set a QGIS print composer to render the map as default?

I have set up a number of templates for the print composer in QGIS. In the Print Composer, there is the option to have the map image displayed in 3 ways: as a blank rectangle with no updates until ...
4
votes
0answers
205 views

PostGIS 2.0 st_geomfromgml using LineString fails with invalid GML representation

I am attempting to insert a geometry into a table using the st_geomfromgml function. The GML is being sourced from a Geoserver WFS request. The function call looks like this ...
4
votes
0answers
173 views

Are there any Objective-C frameworks for shapefile drawing?

Hello can someone point me to library for this? Which can read .shp files and render them? Thanx. Mirek
4
votes
0answers
986 views

How to Export a Shapefile as KML Using R

All, I have exported an ESRI shapefile (polygon) to KML using R, but the resulting layer shows only the outer extent of the polygon. How can I fill in the area with a color? Any help is greatly ...
4
votes
0answers
143 views

create minimal spanning tree using table of distances between nodes rather than TSP

I am working on a transportation (linear programming) problem. Each potential solution also requires checking the distance of approx 20,000 routes with 5 to 15 nodes per route. Calculating the ...
4
votes
0answers
1k views

gdal ImportError in python on Windows

Trying to import gdal for Python 2.7.3 on Windows XP: >>> import gdal Traceback (most recent call last): File "<stdin>", line 1, in <module> File ...
4
votes
0answers
500 views

ArcGIS Kernel Density with polyline, search radius / bandwidth calculation

I'm conducting a density analysis of a series of polylines and I'm hung up on determining an appropriate search radius. The default calculation performed by arcgis is to take the shorter dimension ...
4
votes
0answers
231 views

Display a color ramp legend (of a vector layer) in the qgis map composer

I would like to have a color ramp instead of 10 categories of color when displaying my vector layer in the map composer of QGIS. Is it possible ? Thank you in advance
4
votes
0answers
598 views

How to modify the edit widget in ESRI flex viewer 3.0?

I am running ArcGIS Server 10.0 (sp2) on Windows server 2008 64-bit with IIS 7. I am using the ESRI flex viewer version 3.0. I have created a feature layer and published it as a rest service and ...
4
votes
0answers
276 views

Touristic poi-data (api or dump) with popularity measure

I'm looking for freely available touristic (hotel, restaurants, bars, attractions, etc.) poi-data that have some measure of popularity. With popularity I mean, explicit popularity like on ...
4
votes
0answers
144 views

Advanced GMaps directions

I try to create an application for taxis. The application will be GMap based. On the map will be marked the region in which the taxi driver is working in. The region will be a polygon designed by ...
4
votes
0answers
518 views

Spatial join to kernel density / kernel density with polygon/point output in Arc

I'm looking for a way to join polygons to a density function for some other feature of interest. Current workflow make density raster from feature set of interest, using point/line/kernel density ...
4
votes
0answers
364 views

Geoserver WMS-T backend problems

I've been trying to set up a few timed WMS layers in GeoServer. They're simple enough, of the form ID(PRIMARY KEY) REGION DATE VALUE so for every region and date you have some value, e.g. the ...
4
votes
0answers
448 views

How to automatically format the legend labels? in QGIS

I have to do 10 maps (for a start) with "style" -> "graduate" with quantile mode. I need to format the label of the different ranges so that the legend looks comprehensible: Instead of having 1.0000 ...
4
votes
0answers
93 views

What is the structure of Standard Interchange Format (SIF) used by spatial data providers?

What is the structure of Standard Interchange Format(SIF) used by navteq and other spatial data providers? Any documentation/sample files? Is there a SIF parser available in C/C++/Java/PHP ?

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