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i am making a map that includes all kinds of vector layers; the map looks perfect in QGIS 2.12 Lyon as well as in map composer.None of the layers have scale-dipendent visibility; i have the following issues when exporting as image (regardless the output format):- A4 format: if i set the...

I want to plot data from netcdf file like an ocean model. Is there any way to transform LatLonProjection (-180.0 to 180.0): to this range (ocean model): And plot like this: I am using java api, NetCDF Java library and jfreechart library. أكثر...

I have a array called place_names which holds some place names. I have a geojson layer loaded in my cartodb, which has three columns id, name and the_geom(which is a geometry object) that can be queried and retrieved as json. What i need is i am comparing the names in place_names array to the...

I just made a simple subtraction between two raster layers and got the error: Traceback (most recent call last): File "C:/Users/user/.qgis2/python/plugins\raster_transparency\rastertransparency.py", line 150, in layerChanged maxValue = int(stat.maximumValue) OverflowError: cannot...

Langley is a small rural community on Whidbey Island in Washington State. Like so many other small rural communities, Langley is faced with limited resources but a great need to better understand the geospatial context of the local environment. Through the use of open source tools, including...

Bonjour à tous, J'ai voulu imprimer des pdf qui sont très bien sortis... Cependant j'ai un soucis. Je ne peux pas supprimer les dossier et bloque mes autres collègues d'imprimer. J'ai bien essayer net stop spool et net start mais rien y fait j'ai toujours ces documents avec marqué supression...

I'm using a QGis Server to provide WMS layers to WorldWind 2.0.0. I have a raster layer which appears correctly in the QGIS Desktop viewer, but as soon as I serve it to WorldWind and pick it up the tiles are around the wrong way and if I zoom in the land masses move about. I have checked that...

This question already has an answer here: How to Start Web Mapping? 25 answers I want to make a map like the attached. My Map will show roads and buildings only. I'm interested much in distance than...

I have a point shape file (WGS 1984, GCS) with some random data points. I want to add the latitude and longitude in attribute field. أكثر...

I am working with Fiber network data. I have to develop 144 lines fiber network. I have created whole line database. Now, I need to joint the lines. In this case, I need to extent 144 lines in order to joint the curved 144 lines. Is there any easy way to extent multiple lines in a single...

We are looking for open-access examples of geotagged data that farmers can supply. Examples include: field and farm shapefiles; agro-ecological data, such as data on soils and climate; and precision farming and animal production data. أكثر...

how can I increase the zoom level in QGIS for OpenStreetMap (OSM) data? I am new to GIS therefore I may have the terminology wrong. I have added an OSM layer using the OpenLayers plugin. Everything is working fine except once I zoom in too much, the layer disappears. I need to be able to zoom...

Google has just released Street View for more than 30 historical sites in Jordan. Read more about it on the LatLong Blog. It can be a little difficult to explore the locations in Google Earth. As we have mentioned before, Google Earth has some problems with the blue Street View layer not showing...

I have two tables that I join in my existing workflow. One of these includes flood events (was a shapefile that has been imported to postgresql), the other one is a grid that holds the amount of precipitation for each day and each grid. It is a grid spawned across the world, each pattern one...

I am very ill at ease with Python. I am working on ArcGIS 10.3. I am working on a table in a gdb. I want to fill an empty field of this table with an expression (words) according to the value of a second field in the same table. In my case, if my second field contain the word "roadway", I...

I can load a PostGIS layer on QGIS' map canvas but "Toggle Editing" button comes "inactive". How can I load vector layer as editable? The code given below loads PostGIS layer on map canvas & "Toggle Editing" button comes "active" but once I run the script below in Python console; when I press...

Bonjour à tous, Pour ceux qui ne connaissent pas, Demande de Valeurs Foncières est un service de téléchargement des ventes immobilières, mis en place par la DGFiP auprès d'une liste d'organisme ayants-droit. Mais DVF reste plutôt méconnu, et complexe à utiliser. C'est pourquoi un Groupe... أكثر...

I am trying to save changes via WFS-T using GeoServer: var editLayer = new OpenLayers.Layer.Vector("Edit Layer", { visibility: false, strategies: [new OpenLayers.Strategy.BBOX(), saveStrategy], rendererOptions: { zIndexing: true }, projection: new...

Continuamos con las novedades en gvSIG 2.3 relacionadas con Segmentaci أكثر...

Salut tout le monde. Tout est dans le titre ;-) Vous souvenez vous de ces grandes cartes papiers que l'on utilisait en première année, d'une taille style A0 absolument pas pratique, avec des trous a force d أكثر...