All Questions

0
votes
0answers
12 views

How do I upload netcdf and hdf files to Geonode? [on hold]

What is the best way to upload netcdf and hdf files to Geonode? Are those formats supported natively, do I have to access them programatically, or do I need to convert to another format first?
0
votes
1answer
22 views

QGIS Print Composer producing angled graticule lines that look like rectangles instead of squares?

I just tried to create an extremely simple map made of one layer loaded as WMS layer from Croatia's geoportal (http://geoportal.dgu.hr/wms). I successfully loaded the necessary layer and created ...
0
votes
1answer
28 views

QGIS 2.6 - creating contours from points

I can't find the example model "contours from points" in QGIS 2.6. Is there another tool for creating contours from points, besides the QGIS Contour plugin?
0
votes
0answers
5 views

Labelling in QGIS and adding texts on map

Is there another way to put river, towns etc names beside labeling in QGIS? Can you manually type text determine size and place it where and as you wish on the map?
0
votes
1answer
29 views

Is there a QGIS plugin that can transform tabular data to graph?

I have a CSV file with water level measurments in a well, taken once a year for 40 years. Is there a way to show this data as a graph (x axis being the date and y axis the water level) in QGIS?
3
votes
1answer
257 views

Symbology for Open Street Map [OSM] Data in MapInfo [tab] format

I have shapefiles for the different SOM layers which I have translated into TABs but I am now trying to symbolise them in a similar style to OSM online. Is there a way to easily apply the OSM ...
0
votes
1answer
6 views

send csv with polygon or line in gps data

I want to send a csv with a polygon or line to show it in cartoDB map but when I try to send data to the server I don´t know the exact way to send the info. for polygon some think like this. ...
1
vote
2answers
11 views

Making data joined from Excel independent in ArcMap?

I have joined some data from Excel (.csv) "text" to my attributes table of one feature class. However I can't edit it. I found out it is still connected to Excel file from where I added it, and I need ...
0
votes
1answer
5 views

Trouble connecting to microsoft sql server 2008 from geoserver

I am having trouble connecting to ms sql server 2008 from geoserver. my ports seem to be fine. error message: Error creating data store, check the parameters. Error message: Unable to obtain ...
1
vote
0answers
7 views

Create a polygon with attributes with arcGIS 10

I'm new of the use of arcGIS. I have xy data that descibe a polygon. But when I use the tool "point to line" I lost all attributes. There is a way to create a polygon with attributes. I try to explain ...
0
votes
0answers
6 views

Modifying a raster zone's values with a maths expression

I'm currently doing an SIG project with the goal of calculating groundwater volumes in chalk and silex residuals aquifers. I have point data of underground water, chalk roof and floor elevations as ...
3
votes
1answer
201 views

digitizing (tolerence) error in line data

I have designed a large number of boundaries. For accuracy, I took lines in patches from different data sets and merged them into one. Now I want to turn them into polygons from lines. I every second ...
1
vote
2answers
22 views

Why does clipping polygons result in no features?

I'm using QGIS 2.6. I'm trying to clip the polygons in one layer by another but cannot get the results I expect. I have a layer with wetland areas, and another layer with the boundary of my client's ...
1
vote
1answer
16 views

Where to break the loop to make several polyline instead of one?

I am trying to solve a problem, I am pasting part of the code: from arcpy import env arcpy.env.overwriteOutput = True spatialRef = arcpy.SpatialReference("WGS 1984") polylineFC = ...
1
vote
1answer
24 views

How to save changes in Feature-Geometry with GDAL/OGR and Python? (Segmentation fault)

I have a problem with my code: driver = ogr.GetDriverByName('ESRI Shapefile') dataSource = driver.Open('merge.shp', 0) if dataSource is None: print 'Could not open file' sys.exit(1) layer = ...
0
votes
1answer
30 views

GeowebCache white/blank 1kb tiles

I have a couple of GeoTIFF images that I am combining as a layergroup in GeoServer. The images work great when I am viewing them with GeoServers OpenLayers. I am trying to cache the images using a ...
0
votes
1answer
17 views

Backup and restore GWC data with minimal downtime

I have a geowebcache of for an entire country for 20 zoom level have more than 85 Laksh tiles which is saved in C drive ,I need to move the same file into another system with minimum downtime , ...
1
vote
2answers
47 views

“Phantom” features showing up in QGIS 2.4

I tried searching for this, but am unsure exactly what my problem is. I am using QGIS 2.4 on Windows 8.1. I have a project in which I have been digitizing from OpenMaps. Last night I was doing some ...
0
votes
1answer
492 views

ArcPy SelectLayerByAttribute Error and how to control GP output layer name

I have a rather long script that first references an SDE feature class (non-versioned) to perform an attribute selection based on a SQL selection. I've been unable to figure out why the script will ...
1
vote
1answer
4 views

layer loadstart & loadend event in openlayer3

Openlayers2 has these layer events "loadstart & loadend" , What is equivalent to them in openlayer3 ? I need to show loading icon during vector layer loading and rendring
1
vote
2answers
51 views

Looking for atmospheric dispersion model with 3d GIS application

is there any atmospheric dispersion model with 3d GIS application that can use DEM and atmospheric data as input ?
2
votes
1answer
88 views

Getting Uncompressed Size of Raster using ArcObjects?

How can we get the Uncompressed Size of a raster as shown in the layer properties below using ArcObjects?
1
vote
0answers
11 views

QGIS Extract elevation data only for one country [duplicate]

Hye, Here a map built with (1) a shape file for country contour, and (2) raster from .hgt files with altitudinal representation. How can I only select the area corresponding to the country ? I found ...
1
vote
2answers
283 views

Dynamically Reload OpenLayers Marker Layer based on user input

Not really sure how to ask this, so I'll outline the scenario. We have a database with locations in it. There are various types of cars at each location and each car has a problem of varying ...
1
vote
1answer
6 views

How to get list of all markers from selected Polygon using OpenLayer MAP v2

I am able to run following features on OpenLayers Map Version 2.x Put Markers on Map Draw Polygon on Map Select Polygon on Map Now my requirement is when i select any polygon then i would like to ...
0
votes
1answer
169 views

Compressing the service definition failed

I am trying to publish a map on my server but I am getting this error: Compressing the service definition failed. I have changed the location of service points, still the Error remains. How can ...
1
vote
1answer
16 views

GEOS_ERROR: TopologyException: Input geom 1 is invalid: Self-intersection at or near point

I'm using GeoDjango (but I guess this is from the geos library). I have a set of polygons that compose a city surface and I want to merge them into a single one. The code looks like this: polygons = ...
2
votes
2answers
22 views

How can I avoid incomplete wms layers when exporting large maps in qgis 2.6?

I have a QGIS 2.6 project with around 20 vector layers and on wms layer (working on Ubuntu 14.04). WMS rendering works OK, altough a little bit slow, and exporting A4-size maps also works properly ...
4
votes
1answer
53 views

What are definitions of watershed segmentation, local maxima, variable window search, regarding LiDAR for vegetation?

I am not familiar about Lidar. I want to measure trees height and number of trees. I guess, watershed = to locate the trees, local maxima = to measure trees height. I used these methods in SAGA GIS. ...
2
votes
1answer
37 views

Python Geospatial Development Error

I'm working through some examples in the Python Geospatial Development book by Erik Westra. On page 439, about setting up a tile map server, he gives the following code for calculating a bounding ...
0
votes
1answer
139 views

Z value (height,altitude) from 3D multipoint shapefile in QGIS

Is there a way to get Z value/height/altitude from 3D multipoint shapefile in QGIS? All I found is way through SpatiaLite or PostGIS as explained here: ...
1
vote
1answer
40 views

From CSV file (latitude and longitude fields) to point .shp

How i create a new point shapefile from CSV table? If i have a CSV file with a latitude and longitude fields, is there a method for to have in output a puntal shapefile?
0
votes
0answers
11 views

Old GDAL/OGR version with QGIS from ubuntugis in 14.10?

Installing QGIS 2.6 from ubuntugis installs an old GDAL/OGR (ogrinfo --version GDAL 1.10.1, released 2013/08/26) - it should be 1.11 for support of the Open FileGDB connector in QGIS 2.6 So I don't ...
0
votes
1answer
114 views

How can I copy columns from layer 1 to layer 2?

I have two layers, the first layer is pipe: that has some fields (column) title like : length, id, material. Also I have another layer that is empty (without any fields). How can I copy fields ...
0
votes
0answers
8 views

ERDAS: “Image and Aoi files have different map info. Aborting…”

I have an image 03.img and I want to apply Sub pixel classification on it. Since the image is rather big, I first clipped it with an AOI file (converted from a shape file). Next I applied ...
0
votes
0answers
6 views

Mapfish-print on Mapserver

I have a web map application that is built on MapServer in a Java Tomtcat container on Windows Server 2008. How can I install Mapfish-print in this setup?
1
vote
2answers
155 views

Rasters added to mosaic dataset only display at large acale

I have a set of 357 rasters in .jp2 that I've added to a mosaic dataset. All but 7 of them display properly, but the 7 only display at larger scales, around 1:6500 and under. I've tried adding them ...
1
vote
1answer
106 views

Is it possible to create a default workspace in QGIS 2.0?

I have been using QGIS for quite some time. It always happens that I change the position of toolbars and panels to make the workflow more efficient. But then when I close QGIS and I have to start a ...
0
votes
0answers
366 views

How to create contours from points where points are not a grid?

With QGIS 2.01, the plugin Contour is not available. Anyone have another method to create contours from point / shapefile source, where the points are not a grid?
1
vote
0answers
13 views

Is there a way to create layer summary Pie Charts?

In Qgis2.6. I want to create a pie chart to summarize the layer data. I have a layer of land use polygons (woodland, agricultural, urban etc.). I want a pie chart to show the % of each land use in the ...
1
vote
1answer
118 views

Mapserver WMS, features clipped and positioned

How can I prevent features being clipped at tile boundaries in an WMS layer as per the picture The arrow and line segments are being clipped when viewed in openlayers as a WMS layer. The map file ...
1
vote
0answers
14 views

Simplifying geometries and calculating non-spatial averages

I'm quite new to using proper spatial tools, and have a simple question that doesn't immediately show up on google. I have a table that contains multiple rows of empiric data (say, speed of a ...
1
vote
2answers
807 views

QGis 2.0.1 mapserver extension missing

I tried to export my Qgis projects to mapserver, using RT mapserver extension, because there is not any other extension in my version of QGis.(QGis 2.0.1 Dufour on ubuntu 12.04 LTS). After installing ...
0
votes
1answer
124 views

How do I make my Cartodb info windows wider?

According to my read of andrewxhill (more readable version) I should be able to change the info window size by adding CSS, like so: <div class="cartodb-popup header with-image" ...
3
votes
1answer
330 views

mosaic raster to file geodatabase yields missing raster sections

Since upgrading to ArcGIS 10.1 (SP 1) from 10.0, I've been encountering an issue when running the arcpy.MosaicToNewRaster_management() tool with output to a file geodatabase. I'm principally working ...
1
vote
1answer
489 views

How to calculate driving distance/time between two points

I am doing some analysis for our fire rescue department where we are comparing actual response times to fires vs predicted response times. The actual response time analysis is straight forward as I ...
2
votes
1answer
234 views

How to get data from TileMill tileLayer properties in Mapbox for click/hover

I've successfully used Leaflet to load a geoJSON polygon-shapefile with data, and added click and hover interactivity to the layer. For a large dataset, I switched to mapbox.js 1.6.1, used TileMill to ...
0
votes
1answer
96 views

How to automatically generate least-cost paths between several polygons?

What is the fastest way to automatically generate least-cost paths (LCPs) between several polygons with ArcGIS ? I created a python program to do this by using the functions "CostDistance" and ...
-3
votes
0answers
22 views

How do i create a simple square polygon from Python through arcpy? [duplicate]

I do not need a google search result because I checked. I need to see a code. This has been super difficult for me. Please help.
2
votes
1answer
214 views

How to add XY coordinates (latitude/longitude) to a DEM raster in ArcGIS 10.1

I would like to add xy coordinates of about 10 sites to a raster. I am using ArcGIS 10.1 and my xy coordinates are on Access 2013 database - saved as .mdb. The steps I have taken so far: 1) In ...

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