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Excuse my first question being slightly more Numpy and less actual GIS, but it relates to latitude / longitude so I thought I'd give it a shot. Problem: I have a flat file with latitude and longitude and I'm asked to increase the resolution of these individual points. Currently I'm given a...

So I have a points file of taxi drop off locations and a raster file grid. I am trying to get a count of each point on a raster cell. How do I go about doing that? It is like I am doing a spatial join with two vectors but rather with a raster data set. I am doing this so I can create a taxi...

I have a python script that checks file path names for corresponding files in a drive location. All of the inputs were originally hard coded, and it works well enough: import arcpy import os shp = r"C:\Users\dotwell\Desktop\Locations.shp" fields = ["ZdriveLoc"] f = open...

I'm trying to run the Identity function on two large data sets but it fails every time. I don't think it is a lack of hardware as I can run other processes on the same data sets. I've already updated software, and added the 64 bit geoprocessing add-in, checked and repaired geometry, and done...

Many changes have taken place in Online GIS and geospatial course offerings over the past year, since we first covered the topic on GISCafe. The range of topics has increased to include even courses for high schoolers, and the ever popular drone classes and Geodesign. The popularity of “Massive...

As the event blurb explained *“the Giving Time experiments were led by a team from four UK universities, who wanted to know whether sharing information about how others have volunteered could help to improve volunteering…*this was about giving time – and whether volunteers can be nudged. The...

I would like to performs a spatial join using a (non-existent) "contains part of" match option. i.e. I want the join to include any and all polygons that overlap. None of the match options available produces satisfactory results. To clarify, using the ESRI graphics ("Select polygon using...

Is there any python code that: 1st, sort a column (example name by alphabet) 2nd, grab the first cell of sorted column and assigned it to a variable like A=.. I need all of this to be done in field calculator and inside show block. Please give me a sample or help. Thx أكثر...

I need to run a Viewshed analysis (ESRI 10.2 spatial analyst tool) to answer this: what areas will be able to see a proposed 30m high structure. I have the choice of a DSM or a DTM to use as the input elevation model. I am thinking that the DSM will be better as it will be the tops of...

Is there any way to use the geoserver kml reflector in cesium viewer? I have millions of features with height value. The geoserver kml reflector works in google earths, but not in cesium. أكثر...

Using the reclassify tool in ArcMap أكثر...

A map is worth a thousand words, every map lover knows that. Many of us share maps on Twitter, Facebook or Instagram and blogs like Geoaweosmeness write about them. But are we allowed to do that? Maps should be treaded like any other intellectual property or a piece of art.*As a general rule...

I'm a bit new to gdal, I mostly use ogr2ogr for data imports to MS SQL Server -- so I'm a bit out of my tree on gdal_rasterize My goal is to create png raster files 200x200 from a geometry column. I tried something like with no avail. gdal_rasterize -src_datasource...

I have QGIS V 2.12.0 and am an absolute novice, doing some volunteer work for a charity. I have created a map with added Delimited Text Layer. This references Buildings by Latitude and Longitude from an imported CSV file (an Excel file). This all works fine on different maps. I would like to...

For each feature I want a picture related to that feature. So its obvious to have written a path in the tables attribute. Then I´ll label that attribute somehow by brackets like [%path%]. But it´s not that simple and need some guidance how to write it correctly. Cann you help me out. Thanks...

So I have a regular CartoDB map that has a torque layer with a timeSlider. I know how to access the date for the slider object, but is there a way to access the datapoints for each step as it goes along? What I want to try and do is access the set of datapoints for each 'step' of the...

For the task of accessing WMS services through proxy and then bringing into OsGeo/ArcGIS, MapProxy seems ideal, but much of the documentation and latest code seems oriented towards linux installs. Is there a Windows equivalent of MapProxy when it comes to free or low cost proxy for GIS on a...

I ingested two Landsat images into PostGIS database using : raster2pgsql -I -C -s 28356 -M -t 100x100 LS7_20150425_B40.tif public.red | psql -d postgres -U postgresraster2pgsql -I -C -s 28356 -M -t 100x100 LS7_20150425_B50.tif public.nir | psql -d postgres -U postgresIngestion is going fast ...

Is there a way to draw a polygon with a fixed area in ArcMap? For example, I'm trying to create a 40,000 foot boundary around a feature, but the boundary does not have to be any specific length or width. أكثر...

I want the open the fs variable which in under Retrival category and covert that into raster grid. Thanks! library(ncdf4)file