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When using Python anad fiona package to read a shapefile of Boston, I am getting very large values in the tens of thousands. Why is this? # Import Boston shapefileshapefilename = 'ZIPCODES_NT_POLY'shp = fiona.open(shapefilename + '.shp')coords = shp.boundsshp.close()Then running coords gives...

This question is an exact duplicate of: From .shp to .kml to .shp Without Losing Attributes 3 answers I have a point shapefile on which I used the "Layer to KML" tool on ArcMap. This tool successfully...

I've written a python script that uses a Spatial Analyst function and hence requires the Spatial Analyst extension to be enabled. I would like to be able to check out the extension only if it hasn't already been manually checked out by the user (i.e. via the "Customize->Extensions" dialog)...

I have set up a python script in ArcToolbox for our users. However when running it with ArcView 10.0 licensing the script fails with: ERROR 000824: The tool is not licensed I think it's an Identity_analysis command triggering this error. I've googled the topic and it seems there was a...

I'm new to QGIS and all geoinformation itself but have to work on some difficult stuff. I have a KML file with hundreds of points. To each point there is information, such as Name, Power, Age (it's a map of hydroenergy powerplants). If I import that KML file to QGIS, this information is lost...

I am using ArcGIS and arcpy to process some shapefiles. When I try to use the function arcpy.JoinField_management() the program stops and Python says that the tool is not licensed. This confuses me because the documentation for the tool does not ask for any special licenses...

I have seen this data set referenced in other posts on GIS stackexchange, and I would really like to access it: http://sedac.ciesin.columbia.edu/data/set/gpw-v3-population-density I followed the steps to create an EarthData login, and managed to make it to the data download page, but there...

This question already has an answer here: Obtaining print quality PDF or PNG output from QGIS? 5 answers I am creating art prints using spatial data. I use ESRI software every day for my regular job...

in geoserver I configured a layer containing positions that change in time (they are smart phone positions indeed). I'am able to insert fresh position in geoserver datastore (a postgis db), but I'm not able to automatically reload the layer in client side using openLayers. In addition I wish to...

The example below shows three raster (i.e. in black) and a single county polygon feature class. How can I clip/extract by mask the rasters by their corresponding county polygons (i.e. Edwards, Clark, Barber) in an automated fashion? For this example, the output should include three separate...

I have ArcGIS 10 with ArcView licence and I need to make point layer from a linear layer, with only start and end points for each line. In ArcInfo I could use Feature Vertices To Points with "both_ends" as option but I don`t have such licence. I found "Polyline Vertices to Points" script for...

Are there any publicly available instances of ArcGIS Server for learning? I have searched Amazon EC2 but I don't see any public instances available (unless you already have an ArcGIS Server license). أكثر...

I work with people who use ArcGIS Desktop and they have found the best resolution output images are made by creating PDFs. They tell me that *.png and the rest out of ArcGIS Desktop are not satisfactory and that they do not bother with them. Typically we are making the output appear in a report...

I am new here. I would like to ask some advice about software for a specific imagery workflow. We are interested in investing in relevant software packages, but are also open to open source solutions. This is the workflow - We collect high resolution imagery on two cameras, one is RGB, the...

Phytoplankton explosions off the east and west coasts of the United States have both benign and harmful impacts. أكثر...

I have a question about zonal statistics as a table. I have 200 circles (1 mile radius) and need to extract the mean value of a raster dataset to the individual circles. So each circle would have a mean value of the raster grid underneath it. I thought the best way to do this is Zonal statistics...

I am running a code that uses arcpy.sa.ExtractByMask but it returns: ExecuteError: Failed to execute. Parameters are not valid.ERROR 000824: The tool is not licensed.Failed to execute (ExtractByMask)I know i have spatial analyst licensed and the tool works fine within arcmap itself. Anyone...

This is the first time I am using Leaflet.js. I am trying to create a story map but have come across an issue. Currently I have a map with a scrolling text bar on the left hand side. I would like users to be able to scroll through the text on the left and when they click on a part of the text...

I'm using the zonal statistics in spatial analyst ArcMap 10.2. The input zone is a feature (conterminous US states) and the raster (.tiff - signed integer) is biomass for the entire conterminous US. All data have been projected to albers equal area. I have selected "Ignore No Data" The...

I'm using the Java Topology Suite and I'd like to efficiently check if a Geometry (a Polygon in fact) is convex or not. I currently do if (geometry.convexHull().equals(geometry)) but obivously that is ... suboptimal :) I could implement it myself with the early-interruption condition on the...