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    Spatial Conversations – Will Cadell talks about Maptiks

    Spatial Conversations Shownotes – Episode 01 10 September 2015 Will Cadell of Sparkgeo talks about their full release of Maptiks, a map analytics tool for online maps…think of Google Analytics for how people interact with webmaps. Click to directly download MP3...
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    How to assign a new name for values selected from two columns?

    I'd like to assign a new name (either HIGH, MEDIUM or LOW) to values selected from different columns in ArcMap 10.3 I selected the two values from the two columns ("MAIN_ROCK" and "SUB_ROCKS") using SELECT BY ATTRIBUTES as follows: "MAIN_ROCK"='gravel" AND "SUB_ROCKS" in ('mudstone tephra...
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    Select Features returns There was error executing query in ArcMap when using OLE DB c

    I have a spatial enabled OLE DB Provider corresponding to OGIS simple feature specification for OLE/COM revision 1.1 I can add spatial data as ArcMap layers successfully using this provider and by making OLE DB connection in "Add Data" menu in ArcMap TOC.All tools in "Tools" toolbar of ArcMap...
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    How to select different different values from two columns through SELECT BY ATTRIBUTE

    I'm using ArcMAP 10.3. I'm trying to select by attributes different values from two columns. I want to define the areas where 1) Main rock is GRAVEL and 2) Sub-rocks are a- mudstone tephra loess b- sand mud c- ... d- ... e- sand mud peat I have tried to do it as shown below but I...
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    Why is the Spatial Analyst toolbar graph different to Graphs>Create Graph?

    I'm using ArcGIS 10.3 and want to look at elevation vs frequency of each elevation for a DEM. There seems to be two ways to create this graph: Use the "Create histogram" tool on the Spatial Analyst toolbar. Go to View>Graphs>Create Graph. The Histogram graph type in Create Graph looks very...
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    How to convert a .style arcgis file to use it in Qgis? [duplicate]

    This question already has an answer here: Converting/using ArcGIS *.style file for/in QGIS (QML or SLD)? 2 answers I have a .style file in Arcgis i want to change it to a file to use it in Qgis how to...
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    Separating disjoint GPS path segments in Postgres

    This involves a lot of code; if it's better suited for StackOverflow, please let me know! I'm working on a project involving trips that are constructed from GPS coordinates. I'm mapping the recorded trips on a webpage, with version 0.35 of Windshaft. Trips are collected from a mobile...
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    Add/Remove markers

    I'm trying to add/remove markers to a leaflet map. I have 6 checkboxes, what i want is that when I check any of them show the points in the map, and when uncheck one of them the only to remove is the one I uncheck. What I have, The checkboxes: .row .col-md-12 .row...
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    Converting/using ArcGIS *.style file for/in QGIS (QML or SLD)?

    I have downloaded a dataset from a government organisation. it comes with a .style file. I use QGIS 1.8 on windows 7. Is there a way to use the .style file as a qml or sld? I have tried simply changing the extension but to no avail. أكثر...
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    New Global Layers for Local Relief and Landforms added to the Living Atlas

    The number of global landscape layers in the Living Atlas of the World has grown significantly in the past year. This summer we added and updated several layers, including new World Local Relief and World Landforms. These layers provide globally comparable information useful for characterizing...
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    Tropical Storm Leads to Floods in Japan

    Though it never reached typhoon status, Etau provoked record-setting rain in several prefectures. أكثر...
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    Tropical Storm Leads to Floods in Japan

    Though it never reached typhoon status, Etau provoked record-setting rain in several prefectures. أكثر...
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    What is a good way to visualise a point dataset, emphasising a variable (in this case

    I have a dataset of 300,000 poles including a number of attributes including pole age. I have a question regarding methods of visualisation. What I'd like to do, ideally, is be able to distinguish areas that have more old poles. Unfortunately I can't release the data for you to play with, but I...
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    overlaying raster image with vector

    I have a project on finding a suitable area for a clinic in ohangwena region. I downloaded the landsat from earth explorer and got the shapefile from map maker. Now the problem when I load this two product the shapefile doesn't overlay to enable me clip out my study area أكثر...
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    Adding additional data to R maps - package data

    Is there a way to add data to "additional_data" result set obtained from below line of code? from R maps package additional_data
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    Postgresql and PHPpgadmin Delete Data [on hold]

    I have a problem with PostgreSQL and PHPpgadmin I have a table with more than 50 millions lines and to remove this, phppgadmin gives me two options - remove this ony by one or clear it. I need a query to remove just data, as an example, older than 60 days or from to - something like this...
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    osm2pgsql import fails with parse error

    I'm attempting to import the 45GB (compressed) planet-latest.osm.bz2 file downloaded from ftp://ftp.spline.de/pub/openstreetmap/planet/planet-latest.osm.bz2 but I receive parsing errors. As of now I have had two separate files fail in the same way - downloaded approximately 1 month apart. The...
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    ArcGis Runtime (.net) powered REST-services?

    I am currently involved in a project where we need a few services for complex geometry processing. At the moment, some services has been implemented as Python GP-tools and deployed on an ArcGIS server. This is an ugly approach, thinking of debugging, error handling, performance etc. ArcGIS...
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    R with ggplot2/ggmap - How to load a png image as a map

    I am trying to find a workaround for ggmap's missing support of world maps (i.e. you can't create any maps that show latitudes > 80°, due to idiosyncrasies in the mapproj package).To a limited extend however, it seems possible to create empty world maps and save them as an image (png etc.), even...
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    Cast arcpy result as an integer instead (arcpy.GetCount_management)

    I am trying to get a number by counting how many points are in a shapefile. And this works (I think), except I then am running into trouble using that number somewhere else. Eventually, I'll be using that count in some math (field calculator), but while debugging I'm running into an error that...
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