4
votes
1answer
524 views

Is there a way to select what to import from planet-latest.osm.bz2 to database?

Is there a way to select what to import from planet-latest.osm.bz2 to database? I want to do something like : osm2pgsql ... --place='city' --admin_level='2' My goal is to use only cities and ...
12
votes
3answers
22k views

How to import coordinate data from excel into QGIS?

I have an excel file containing data collected over many years as latitude and longitude coordinates for archaeological sites - how can I import it into QGIS as a new layer?
3
votes
0answers
357 views

A problem with ArcGIS network analyst making paths and roads work together

Working in Arc GIS 10 .0 service pack 5, network analyst extension, Productivity Suite 2.1 service pack 7, on Windows 7. I am trying to get the Ordnance survey ITN urban paths layer to work with OS ...
3
votes
2answers
1k views

How to debug 'Layer is not valid error' from Python plugin?

I'm trying to understand what goes wrong with a QGIS python plugin. Basically I'm trying to render a series of POINT. The query works fine, at least giving it by hand from inside PostGIS DB: "SELECT ...
4
votes
3answers
2k views

Summing attributes intersected by under a radius

Apologies - new user. I am working with QGIS on Mac OS X and with shapefiles downloaded from the US Census Bureau that show population data by state and by county. How do I: select certain points ...
2
votes
1answer
166 views

How to close and fill Gulfs and inlets in QGIS or Grass?

I have a raster layer from which I extracted only zones with a certain color, then polygonized it with QGis. I just generalized the new vector layer in GRASS to smooth things a bit. There are many ...
2
votes
1answer
469 views

NEAR_3D function without the need for 3D Analyst, Arcpy

I am looking for a python script which would do similar as the ArcGIS 3D Analyst NEAR_3D function. Basically I would like to programatically in python find nearest points of one point feature class ...
5
votes
7answers
543 views

Which GIS (with GUI) produces good-looking maps for a reasonable price?

I would like to produce some good looking wall maps. I have an excellent data set, but it seems that most GIS packages are geared towards data analysis etc. as opposed to producing an aesthetically ...
13
votes
2answers
22k views

Adding/Removing Leaflet GeoJSON layers

I'm trying to show different GeoJSON layers at different zoom layers using the Leaflet API. I can load and display all three layers at once (though I don't actually want them all to show at once). I ...
7
votes
2answers
22k views

How to make heat maps?

It might beginner question regarding heat maps..I want to prepare the heat maps so what parameters are required for that?? I gone through following posts about heat map..but I did not get exact ...
7
votes
4answers
5k views

How to extract POINT from a [LINE|MULTILINE]STRING

I'd like to create a vectorLayer in QGIS to display all the points that form a LINESTRING or a MULTILINESTRING stored in a PostGIS DB. I think that I need to transform all points of LINESTRING (or ...
3
votes
0answers
244 views

How to merge SeaWiFS and MODIS data or use other merged products?

I hope to produce a time-series for sea surface temperature (SST) and chlorophyll-a (Chl-a) for use in MaxEnt without the use of arcgis, preferring Python tools to others. I am new to satellite data ...
5
votes
4answers
21k views

Examples of Google styled Maps? (including JSON)

After watching a great video on creating different map styles with Google Maps, I have been having some fun playing around with the Google Maps Style Wizard. I was hoping to find a gallery of user ...
2
votes
1answer
82 views

calibrating vector line in qgis

I have loaded GPS points into a QGIS vector layer. I also imported a vector line from a dxf file which doesn't have georeferencing. I would like to fit in line geometry between the GPS points - how ...
2
votes
0answers
194 views

Ogr: How to add layer description to dgn?

I have created a dgn-file using Ogr, but can't find a way to fill out the description for this layer programatically. (something like _dgnLayer.Description = "Highways") opts.Add("SEED=" + ...
1
vote
0answers
57 views

How to extract numbers from each vectors?

I'm trying to create custom legend for a layer where OpenLayers.Rule objects are created dynamically and added to a layer. new OpenLayers.Rule({ symbolizer: { ...
1
vote
0answers
242 views

How to correlate Image DN with Spectrometer reflectance?

I am trying to develop a system to measure NDVI from the commercial grade digital camera. I am trying to get two bands NIR and RED from the image and apply it for NDVI measurement using diffent ...
1
vote
3answers
7k views

How upload KML from your local disk using Google Maps API?

I am trying to get load my KML from my local disk with given below code : <script type="text/javascript"> function initialize() { var mapOptions = { center: new ...
1
vote
1answer
2k views

Converting data from gml.gz to ESRI format

I am using the Productivity Suite v3 Data Converter tool to convert Urban Paths (from OS Master Map ITN layer (UK)) from gml.gz format to ESRI format. However, there appears to be a bug in this ...
4
votes
1answer
159 views

Measurement not correct in QGIS 1.8

I have a SHP file of sub-areas of U.S. counties (roughly about the size of a Census tract) that I've reprojected into a 'true distance' projection (World Equidistant Cylindrical) in QGIS 1.8. However, ...
2
votes
0answers
180 views

VSIMalloc3() and UnifiedSrcDensity mask errors when running gdal_warp in OSGEO4w shell

This is related to gdal.py as part of bat script in windows 7 I am getting ERROR 2: VSIMalloc3(): Out of memory allocating 854522136 bytes. ERROR 2: Out of memory allocating 119813400 bytes ...
3
votes
0answers
401 views

How to solve the problem when buildings are extruded without roof?

I tried to extrude buildings in ArcScene with Extrusion function in Layer Properties. But most of the buildings seem like only their walls are extruded. Instead of solid blocks, they appear like no ...
2
votes
0answers
313 views

How to program select by attribute unique values using ArcGIS silverlight API?

I'd like to create a select by attribute window in my webGIS using silverlight api . this is like select by attribute in arcgis desktop . i create select layer combobox ( cbolayers)and select fields ...
5
votes
2answers
1k views

OpenLayers XYZ Unable to Load Local Tiles

I have some local tiles that were generated from OpenStreetMaps using Maperitive. I've tried going through the docs and tests but the map is not loading. I'm not getting any errors in chrome's js ...
2
votes
1answer
3k views

TIN Interpolation using a vector layer

I'm writing a plugin in QGIS and I'd like to generate a TIN surface using a vector layer with x,y and z (interpolation attribute). The idea is to visualize the same result like in the Interpolation ...
1
vote
1answer
2k views

QGIS, how do you break segments of a polygon, ie break 1 polygon into 2 or more?

I have a polygon but would like it to be in broken up to put into different layers. I can't work out how to do this.
4
votes
1answer
156 views

GRASS r.grow doesn't seem to change raster values at all

I have a raster map in GRASS that looks like this: The red cells have a value of 1, the yellow cells have a value of 0. I am trying to use the r.grow command to 'fill in' the gaps in the red ...
4
votes
1answer
372 views

How to set page size in ArcPy?

It is possible to set page size in ArcPy? I'm looking for any tricky way to set the page size, using pure Python or ArcPy. I'm using ArcGIS 10.1 for Desktop.
3
votes
1answer
881 views

Check if lat/long point is within shape

I'm a bit new to ESRI and GIS so forgive me if this is a simple question. Looking at this example ESRI Javascript sample (source code is here) I see you can click on a shape (via a published shape ...
2
votes
0answers
161 views

ModelBuilder Run Time Errors Using ArcGIS 10.0 [duplicate]

I recently susccesfully ran a watershed delineation model using both ArcHydro Tools for Arc GIS 10.0 and Model Builder in ArcGIS 10.0 on Windows 7 system (Dell Inspiron N4110 Intel Core TM i3 CPU @ ...
2
votes
0answers
335 views

From pgRouting shortest_path back to osm node id

I'm successfully performing path finding queries like shortest_path on data imported with osm2pgrouting. The tables I have inside my pgrouting DB are the following: List of relations ...
6
votes
2answers
282 views

Why do some maps show Sandy Island?

I need to ask you guys after reading this article. Any speculations on why some maps showed it? What can be the cause of inaccuracies in (web)Maps?
5
votes
0answers
678 views

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

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 ...
1
vote
0answers
316 views

Layer set visible

I add this layer like this: var POIData = new esri.layers.ArcGISDynamicMapServiceLayer("https://mysite.com/ArcGIS/rest/services/POI_Data/MapServer"); map.addLayer(POIData); ...
3
votes
4answers
1k views

climatic data from MODIS or other sources

I'm looking for climatic information in the form of raster like MODIS daily LST (Land Surface Temperature) data. I'm looking for other parameters like precipitation, humidity, air pressure and so on. ...
6
votes
2answers
579 views

What are my options for Server side clustering using open source GIS tools?

I need to make a webapp that will show over 40K Points on a map. These points are all across the globe. Using WFS Service and OpenLayers, it is possible to do clustering on small set of points, but ...
2
votes
2answers
191 views

How can I get a window by clicking on a mapsubject in the QGIS web client?

Is it possible in Qgis-web-client to show a new little window (with custom informations and maybe a little picture) by clicking on a mapsubject? How to modify Qgis-web-client if possible? Maybe its ...
1
vote
0answers
67 views

how to use a particular output from previous code in my next code in matlab [closed]

I have written a code in matlab and there are several outputs. I have to use only one of the output(containing latitude, longitude, and one parameter) of these several outputs in my next code. Can ...
3
votes
1answer
2k views

Auto-updating map service via REST in ArcGIS for Server?

I have one map service which is updating per day so I need to manually overwrite the service in ArcGIS 10.1 for Server. In previous versions 10.0 its very easy..just update the .mxd then REST will be ...
4
votes
1answer
265 views

How to echo gdal process to screen and pipe to text file in Windows?

gdal_warp and similar give a nice progress summary when run and I want this output to show in the osgeo shell and also pipe to a text file. The issue is when I add the pipe the output doesn't show on ...
3
votes
1answer
3k views

What projection to use for Google Maps?

I'm loading a WMS layer which comes in WGS84 into Google Maps. From what I've read so far, I should reproject this layer to Google Pseudo Mercator (either 3857/900913). However, when I save the layer ...
3
votes
0answers
276 views

Can markers changes undo through history/revert to original?

I'm a contributor to a food foraging map and found that many markers are in the ocean. I then also noticed that I had an undo at the top of gmaps and realised I'd moved 5 trees trying to get to my ...
4
votes
1answer
1k views

qgis android problem on load

I am new to both android and qgis, but have 20 yrs experience with mapinfo and arc gis. I have installed qgis on a nexus 7 (4.2), but keep getting the error : No qgis data provider plugins found ...
8
votes
1answer
440 views

How to debug a QGis python plugin

I'm trying to write a python plugin for QGis. I'd like to debug some DB queries and I need a way to display the result. I thought about using a popup to display it, but I don't know how to show a ...
1
vote
0answers
83 views

Get layers and apply renderer to layer list from SDE ArcMap

I have the code that gets the layers from SDE, but when i add them to the map they have a different symbology. there is about 80 layers and i am accessing the SDE by getting the workspace from a ...
1
vote
1answer
159 views

WMSgetFeatureInfo problem

I want to get attributes of feature using getFeatureInfo: if(sss==null){ if (sld==null){ sld= new OpenLayers.Control.WMSGetFeatureInfo({ url: 'http://localhost:8080/geoserver/wms', ...
2
votes
2answers
2k views

OpenLayers: how to save added point in server side

I'm new in OpenLayers. I have simple application, which use a picture as map, on this picture users can add, move, or delte point, and then save. I have implemented adding, moving, deleting ...
3
votes
1answer
203 views

How to validate Personal Geodatabase against XML schema?

Is there a tool in ArcGIS ModelBuilder which can validate a personal geodatabase and an XML schema to give out an report saying if the gdb is validated or not?
1
vote
1answer
416 views

How to use SLD Select control?

I have a WMS layer and i want to get fid of polygon in it by click it. How can i do it? I know that i can create WFS layer from this WMS and get feature attributes from layer or store. But its ...
3
votes
2answers
2k views

Is there any way to set polygon features fill color and outline programmatically?

By some process I am creating a polygon feature layer. Before adding the layer in the map, I want to set polygon's fill color to no color and set polygon's outline color and width. I am working with ...

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