3
votes
0answers
26 views

Labelling Max coverage by Area

I'm struggling to find a quick way to identify and label an area by the maximum coverage of an overlapping polygon. Has anyone done a process like this lately? I'm currently playing with the Pivot ...
3
votes
0answers
64 views

How to export two related layers to KML with multigeometry using QGIS?

From QGIS, I would like to create a KML file, for GoogleEarth, which contains multigeometry in that KML file. By example: consider two layers in QGIS -- the first layer contains polygons, and the ...
3
votes
0answers
33 views

How to set m parameter of clusterR function in R?

I want to manage a clustered computation on raster and thus use the "clusterR" function in R (package 'raster'). However, there's a tuning m parameter to set, but the only explanation about this ...
3
votes
0answers
91 views

How can I programmatically remove a layer from the QGIS composer legend without removing it from the map canvas?

I am working on a QGIS Python plugin which includes automated map production. I use a series of map templates, each of which has a main map, an overview map (with a layer set different to the main ...
3
votes
0answers
72 views

What is the area that OGR extracts from the (geometry) shp files for polygons?

The ESRI July 1998 technical documentation for polygon shapefiles at page 10 makes no mention of either area measures or length measures (apart from byte/record-layout matters). Yet OGR enables me to ...
3
votes
0answers
43 views

QGIS Cross Section Profile Distance using Ellipsoid?

I am working with QGIS 1.8 and 2.6 and can't get any of the Cross Section Profile tools to provide the ellipsoid ("proper") distances. All the distances use geographic coordinates which are too ...
3
votes
0answers
18 views

Action: Move pointfeature to other layer - Point becomes Multipoint

I'm trying to write an action that moves a pointfeature from one layer to another. It works fine until i try to save the layer with the new feature on. He says he can't save a MULTIPOINT to a ...
3
votes
0answers
76 views

Dilating a polygon by a circle sector

I want to dilate a polygon by a circle sector in ArcMap. Because my python skills are not that good to figure out how I can use the R prototype of How to create an oriented buffer using arcpy? . Is ...
3
votes
0answers
90 views

Zonal Histogram Output Problems - No values associated with the habitat type

I have a outline of some islands (shapefile or raster) and GAP landcover data (raster). I am trying to use Zonal Histogram to create a file with a histogram of the habitat types in each island. Each ...
3
votes
0answers
58 views

Diminishing performance of gdal_polygonize in a python subprocess for GRASS to PostgreSQL

I have written a python script to polygonize GRASS rasters into a PostgreSQL database using the gdal utility gdal_polygonize: sub.call('gdal_polygonize.py -8 gdb/quercus/{0}/cellhd/{1} -f ...
3
votes
0answers
54 views

Web mapping API popularity

Are there any online statistics for the popularity/usage of web mapping APIs? A diagram would be sufficient, if it can be published in a paper. I have only found one source: ...
3
votes
0answers
210 views

SetNull in Python script for Arcgis assign 0 value

I am writing a script in Python where I assign to few Tiff defined in a function as inputRaster a NoData value as follows: whereClauseSetNull = "VALUE > 100" outSetNull = SetNull(inputRaster, ...
3
votes
0answers
50 views

MapServer - Os Open Data - Tutorial

I have recently received my OS OpenData discs from Ordnance Survey, and for the last two evening tried to get this data into MapServer for ultimate use as a WMS for OpenLayers. Safe to say I have ...
3
votes
0answers
47 views

Editing Cursor for GPS live tracking in QGIS 2.4

I am interested in using QGIS 2.4 for vessel navigation due to its ability to display NOAA vector charts or BSB's as well as user created shapefiles. I currently oversee a project that requires ...
3
votes
0answers
86 views

arcpy.mapping.ExportToTIFF fails to render layer?

Has anyone else had this problem? I have an mxd file with two layers in it, one of which is fairly 'heavy' (i.e. takes a minute or so to draw). All layers are visible by default. I have the ...
3
votes
0answers
36 views

Generate a series of ellipses on a line

I am trying to create a series of ellipses (mocked up in green below) of defined dimensions along a line. I have got as far as generating regularly spaced points along the line that are attributed ...
3
votes
0answers
250 views

Select and copy attributes features in ArcMap using Python add-in tool?

I'm trying to add a tool to an add-in toolbar to select features from an existing feature class and copy attributes to another feature class,from point to point. TopoHeight_Field_Name='Comment' def ...
3
votes
0answers
129 views

Does QGIS work with Anaconda?

I am trying to get QGIS to work with the Anaconda distribution of Python but I do not know how to get this to work. In one of the answers it was mentioned that QGIS does not work with Anaconda and I ...
3
votes
0answers
122 views

How complete are the Fusion tools in QGIS?

How complete are the Fusion tools in QGIS? I have them installed and (vaguely) working, but there are only about ten of them. Is the idea of having just a few tools available, that one can use ...
3
votes
0answers
111 views

How to set Vertical Coordinate system when creating a 3D shapefile?

I'm working with GDAL v1.11 and am seeing the vertical CS stripped when exporting a 3D shapefile (from oracle spatial). This is the command I'm running: ogr2ogr -f "ESRI Shapefile" B_POINT.shp ...
3
votes
0answers
179 views

Hexagon binning using Google Maps

I have a bunch of geolocated points that I am looking to cluster on a google map using hexagons. These clusters will be stored in a db for quick retrieval and will be reduced to a single point and ...
3
votes
0answers
126 views

Single Tree detection

I was wondering how I could extract "crown area" of single trees in a forest from a high-resolution image with only 3 band (RGB) in ArcMap. ( No NIR to use NDVI as any threshold). I need a fast ...
3
votes
0answers
31 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 ...
3
votes
0answers
94 views

Most efficient way to intersect overlapping polylines

I have 4 multipart polyline shapefiles (download a sample dataset here). The geometries are identical, except for the length of segments in each shapefile. They represent 4 variables describing an ...
3
votes
0answers
76 views

Both-sided transparency in ArcScene for extruded features

I'd like to extrude my polylines and make them transparent, but from both sides. As you can see below, the transparency works only on one side. I think it's something with the side-orientation. I can ...
2
votes
0answers
5 views

Link two destination objects in FME

I have an object 'building' which is represented into multiple feature classes (point, line ) in esri file geodatabase. Is there a way to copy an attribute in one class to an attribute of another ...
2
votes
0answers
570 views

Building java based desktop map application using embedded database such as spatialite

I am relatively very new to building GIS based applications and have a very limited understanding in this area. So I need some help in building a java based desktop application which would generate ...
1
vote
0answers
6 views

ArcSDE PostgreSQL configuration parameters for Spatial Index?

I wonder why there is not any configuration parameter (DEFAULT Keyword) for spatial indexes in Arcsde for postgres. In ArcSDE for Oracle we have S_STORAGE,S_INDEX_SP_FID,S_INDEX_ALL parameter for ...
1
vote
0answers
19 views

How do I add packages to Standalone Qgis's Python?

I have installed the QGIS 2.8 on my Windows 8.1 system, using the Standalone Installer. I now wish to install the VectorBender plugin. The docs for this plugin say, that I need to install matplotlib ...
1
vote
0answers
24 views

How to run kriging in modelbuilder with various shapefiles

I need to run kriging in a model, using 5 diferent point shapefiles. I put as input %Name% to run the different shapefiles, but in Z value field I have an error, because it's different in each ...
0
votes
0answers
7 views

Repair/Check for empty geometry in SDE?

I understand that the standard validation/repair tools are not for use with SDE's and that ESRI needs to fix this, but are there work-arounds for at least checking where there might be empty geometry ...
0
votes
0answers
5 views

accessing services.arcgisonline from a local print task behind a proxy

I'm calling a standard ExportWebMapTask published on a local server. This server is behind a firewall. The print service internally has to make a call to services.arcgisonline to retrieve basemap ...
0
votes
0answers
7 views

What program can I use to highlight and calculate multiple areas on a satellite map?

I would like to calculate the area of all the parking spaces in my city (North Miami Beach). I would highlight the parking in two layers, commercial and residential, and then export it to excel and ...
0
votes
0answers
4 views

QGIS Crashing when Adding MSSQL Spatial Layer

Using QGIS I have connected to a database from MSSQL with no issues. When I import one feature I can specify the coordinate system and edit attributes. However, if I wish to add a second feature and ...
0
votes
0answers
7 views

How to display tools on the Heron toolbar

Attached is my code for the index_page of Heron Layout, I can't find a way to display tools icons on the menu bar. I also have Heron.js, default.css, DefaultOptionsNL.js and Config.js locally in the ...
0
votes
0answers
9 views

Use leaflets to display svg floor plans

How can we use the svg image as map? I have the floor plan of svg format and i need to track the location of employees. How does leaflet allow to integrate the coordinates of map and the lat lng? Can ...
0
votes
0answers
7 views

Image is Not Showing in QGIS:- in the plugin information pane (the right pane where the details of the plugin is displayed on selecting the plugin)

I created a QGIS plugin with Plugin Builder. Even though the icon set in the metadata.txt is displayed in the Plugin Manager list (left to the plugin name in the installed plugin list), it is not ...
0
votes
0answers
8 views

How to project WRF data (lat/lon) onto ArcGIS maps

I have climate data generated using the WRF model, in lat/lon format (lambert conformal projection), in an Excel file. I'm looking to project / overlay this data onto a map of the UK using ArcGIS, ...
0
votes
0answers
9 views

GeoExt : Gxp Query Function

I am using a Gxp function which allows to query on layers. It is defined as var queryPanel=new gxp.QueryPanel({ title:"Query Panel", region:"east", width:390, ...
0
votes
0answers
18 views

Updating a polygon with an attribute from ALL intersecting polylines

I have a polyline layer with road information such as the road it beings from and the road it ends at. Some of these are digitised incorrectly and I am trying to pull out the road name (or unique ID ...
0
votes
0answers
5 views

Parameterizing Postgis function in GeoServer's SQL Views

I have a problem when parameterizing a postgis function in sqlviews If i create this sql, all works like a charm attaching this &viewparams=idvia:6753 to the url SELECT ...
0
votes
0answers
8 views

Checking if Terrain Model has pyramids or data sources using ArcPy/Python?

I asked this question in the Esri forums and got nothing but a lesson on LAS point cloud classifications—not even remotely what I had asked. I’m hoping someone here can point me in the right ...
0
votes
0answers
8 views

Geonetwork won't load metadata

I'm using Geonetwork 2.10.3. I have implemented new language succefully and put it in Glassfish on server. When I run Geonetwork form browser, all metadata is loaded from other application, but ...
0
votes
0answers
25 views

How does a GPS satellite knows which gps receiver asked for it's location?

GPS satellites get a lot of requests for information from many different devices, so how do they know to return the information to the right receiver?
0
votes
0answers
19 views

Activating multiple data stores for GeoServer?

I'm working on web-mapping interface , and I am refering to some wms layers punlished as wms in Geoserver . I'd like to know If it's possible to activate different datasctores at once . And link ...
0
votes
0answers
14 views

Multiple LEFT JOIN in PostgreSQL

I got a "nice" problem with a query in PostgreSQL with a multiple join SELECT DISTINCT "Monitoraggio_L001_L008_2015_aprile"."ID", "Monitoraggio_L001_L008_2015_aprile"."Ordine", ...
0
votes
0answers
13 views

GDAL raster shifting with python error: 'NoneType' object has no attribute 'GetGeoTransform'

I'm trying to shift a georeferenced raster by 0.5m N and 0.5m W in QGIS using the python console: from osgeo import gdal # Open in read/write mode rast_src = gdal.Open('test_raster.tif', 1) # Get ...
0
votes
0answers
13 views

ArcGIS WebApp Builder not Displaying on Mobile

On Desktop, I have developed a Web App using the WebApp Builder on ArcGIS Online. The data is a Map Service, and everything works fine on Desktop. However, when I try to access the App on a mobile ...
0
votes
0answers
21 views

Run the GUI of JTS 1.12

I've got an error in JSTS (JavaScript Topology Suite) library based on JTS (Java Topology Suite) v1.12 (r405). But there is no error in the last build of JTS on the same test case. So I want to check ...
0
votes
0answers
65 views

QGIS web client - ERROR generating pdf

If I push the print Button at the toolbar, i will get the menu which works fine. But then i want to print the map the pdf doesn't generate. That's why i look into firebug and i get following ...

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