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I am very new at using GIS data and only modestly experienced with R. I've been reading about how to analyze spatial data using the spatial-analyst.net PDF book, so I'm not completely lost, but I thought I could describe my problem and people might suggest ideas. I have a dataset with about...

Leading chemicals company requires Customs clearance & Logistics coordinator: - Ability to handle communications with overseas suppliers and service providers. - Facilitating the customs clearance process and ensuring the proper documentations for clearance - Handling the shipping process for...

I have a Geotiff with internal overviews, generated using gdaladdo and the -r mode. I published this Geotiff in GeoServer 2.6 and I can see the image fine in map preview.However, when I load the image in our OpenLayer 2 application, the image quality is worse. It appears as though GeoServer Map...

I'm trying to load a shapefile as a new layer into a running QGIS application using python within a Windows command shell. The python is basically what is explained in this post: How to open a layer in QGIS from another application? I have worked through various errors and now I get none, but...

This is a conceptual question I've been trying to implement for a while, and not being very good at raster/data processing or python I'd like to hear best practices in dealing with an extent such as the ConUSA. Problem: I would like to create a tool which would allow me to append csv files with...

By Danny Kallich, Southwest Pennsylvania Environmental Health Project This article examines whether emergency responders are prepared in rural areas for oil and gas drilling emergencies, how people may be put at risk if the proper procedures aren’t in place, and other critical safety questions...

We’re working on new technology for answering geographic problems on a global scale. To determine OpenStreetMap’s total coverage, identify bicycle paths that are in RunKeeper but not in OpenStreetMap, or identify incorrectly-tagged sidewalks, we need to run an analysis on an entire world’s worth...

I'd like to use the points filter tool in the QGIS processing toolbox to remove errant gps points from data i'm looking at. I've had limited success playing with it and I was hoping someone who is more familiar with the tool might be able to fill in the blanks. Specifically Attribute - Does...

I would like to show on my map only the reddish pixels of my raster layer. Said in another way: I would like to transform my white background into transparent background so I can see my other features. I have the feeling this is possible using the custom transparence tab in the layer property...

for a visualisation project I need the boundaries of the UN regions as defined here : http://unstats.un.org/unsd/methods/m49/m49regin.htm That's 21 polygons for the sub-regions. I have been looking around on the usual places but couldn't find anything that also includes the oceans. The...

I am developing a standalone app in Python, using QGIS libraries including processing algorithms. I am developing in Linux environment and I put the libraries in a folder. Also I put the processing folder from QGIS in that same folder. I run the app but when I import the processing folder, it...

Most people are aware of all the cool things you can do with ArcGIS Online. They know they can access thousands of layers through the Living Atlas and Open Data portals.* They know they can distribute maps and engaging web applications like Story Maps within their institution or with the...

Unlike the apparently similar question already asked where the .dbf is associated with the .shp, my problem is simply opening a .dbf in order to join it with a disconnected shapefile by table join. My question is quite simple: how can I open a .dbf file in QGIS? I can't find the right...

How to project -180.0 أكثر...

I use to write QGis plugins, which is based on PyQT.I use to create QButtons and connect their click to a function that itself calls a QFileDialog. For example: def doOpenFile(self): fname = QFileDialog.getOpenFileName(self.dlg, self.tr("Open input file") ) if fname...

So here is the issue: I've got a spreadsheet that is a list of countries (in column A). Next to each country is a list of journal articles about disasters and displacement within that country. (We're a non-profit making a map of available research on this issue). Each article is another column...

I have searched for this answer online for 4-5 hours and am not finding the specific topic or solution to my problem. I am creating a data driven pages mapbook of the state parks, state gamelands and state forests in Pennsylvania, with each page representing a county. The problem that I am...

I have geography data stored in SQL Server and I am trying to merge polygons from two data sets together. The problem is that they do not line up exactly, so unioning them results in narrow gaps along the boundaries between the two sets. What's the easiest way to removed these seams? I am...

I have problems to use the function v.what.vect and I'm not sure what is the issue. I have a simple forest polygone and a try to determine if a point is in the forest or not. # check the output of the feature naturev.db.select nature col=landuse where="cat

I'm trying to regrid and interpolate vector values from WAM model output. I got WAM model netCDF output in rotated grid, I need to interpolate it to another grid which is some variant of LAEA projection. For scalar values I used SCRIP (Spherical Coordinate Remapping and Interpolation Package)...