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Looking for ideas on a workflow in QGIS: I have an Aspect raster layer and a point vector layer from the same area. Such point data represents localities of interest for a particular study. Is there any way I can obtain the exact Aspect value at each of those points? I know I could always use...

I looked at this question, but it only answers part of my problem. I want to create Thiessen polygons based off of the green points within the blue polygon boundary ONLY. I've set the Processing extent to the exchange boundary, and have set the raster analysis mask to the same exchange...

ArcMap 10.3.1 I have several shapefiles that I am attempting to edit in the following way. 1) Right click on shapefile -> properties -> add hyperlink capability to a field in the attribute table -> hide first two fields of data -> rename the alias of one field. 2) Change the color of...

I Have a set of some QAction in my QGIS-Plugin and they are created and added to the toolbar like this icon = QIcon(":/action1.png") self.action1 = QAction(icon, u"Action 1", self.iface.mainWindow()) QObject.connect(self.action1, SIGNAL("triggered()"), self.someMethod)...

Summary: The U.S. Geological Survey today announced the publication of a new study examining how Alaska’s tribal environmental managers and local observer networks view statewide trends in wild berry harvests Contact Information: Jerry Hupp ( Phone...

Summary: The Monterey Formation in the deepest parts of California’s San Joaquin Basin contains an estimated mean volumes of 21 million barrels of oil, 27 billion cubic feet of gas, and 1 million barrels of natural gas liquids, according to the first USGS assessment of continuous...

Another example of how cloud GIS may be used in local government projects comes from Mihai Iepure, Faculty of Geography, Babes-Bolay University Cluj-Napoca. Mihai Iepure wrote a case study in which he describes his implementation of GIS technology with a goal to assist the process of...

Four years after the first Eye on Earth Summit (see my reflections about the 2011 event here, and the Dublin meeting in 2013 here), the second summit is being held in Abu Dhabi. Eye on Earth is a meeting that is dedicated to the coordination of environmental information sharing at all scales so...

I have some mxds from a few years back that I have been tasked with re-purposing. I need to recreate the original symbology, now missing, which was apparently done by loading a lyr file from parts unknown. Is there any way I can tell which lyr file was used to create the symbology? If I...

I'm trying to update latitude and longitude data per individual station for a lab I'm working for. Here's some code I have that's supposed to assign any all bay stations of a certain name the appropriate GPS coordinates. Whenever I try to run it arcMap simply says there was an error...

I am having a difficulty to use network analysis in ArcGIS because of unavailable network datasets.So, I googled it and realized that it is possible by using OpenStreetMap.However I don't know how to create a network dataset from OSM in qgis and then incorporate it to ArcGIS.I am a very beginner...

I have a very large map file (.TIF) and a large DTM file (.GRD).When I add them to my layers in MapInfo I get a .TAB file. When my Map / DTM are visible MapInfo works and responds really slow and sometimes crashes. I wanted to know, what can be done so that I could work with large layers with...

There has to be an easy answer to this, but for the life of me I can't figure it out. How do you simply clear old plots from the plots result window in QGIS? Is there a line of R code that you'd need to run to do so, or is there a means of doing so through the GUI? New to QGIS, so any help is...

طبعا مكتبتنا العظيمة الاسكندرية التى صرف عليها الملايين لا توجد وسط هذه المكتبات والسبب غير معروف 25 Of The Most Majestic Libraries In The World... أكثر...

For a map application using pbf vector tiles, should I go with Tangrams which uses webgl to draw the tiles or some other library (e.g. Hoverboard)? Tangrams looks very promising since it abstracts out the tile styling to a .yaml file, but it won't work on clients without webgl support, and the...

How do I make a URL a hyperlink when the information is called from a GeoJSON field? I have tried adding html tags, but since the link is not in-line, it does not work. (Script below) LOC_Catalo is the field with the URL. // load GeoJSON from an external file...

I have two shapefiles. One is the DMA and another of states. What I'm trying to do is "expand" a DMA boundary to match the boundary of the states, since the DMA map doesn't extend all the way. To illustrate: This is the map of the Mid Atlantic and Midwest region states: And this is the DMA...

my first question! In ArcGIS, I have a shapefile for a pipeline and another for plots of land that the pipeline shapefile touches and I was wondering if there is an obvious way to calculate the area that the pipeline covers within each of the individual polygons for the land plots shapefile. I...

I have two data sets: one for Thurston County, Washington and one for all of Washington state. I created a map of hydrology features in Thurston County, and now I want to take the data from the Washington state data set and overlay it on top of the Thurston County data set, so that all of the WA...

I am attempting to add the following plugin to search a GeoJSON file I have open in Leaflet Javascript: http://labs.easyblog.it/maps/leaflet-search/examples/geojson-layer.html I have brought in the search js and css files and called them, I just do not understand the syntax to incorporate it...