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    how can i generate polygons along a line in QGIS?

    I would like to create polygons along a line to use them for AtlasCreator in a next step. ArcMap has a tool called "Strip Map Index Features" https://desktop.arcgis.com/en/desktop/latest/tools/cartography-toolbox/strip-map-index-features.htm With this tool I can choose the height and width...
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    Blanks in animation in ArcScene?

    I have a few layers in ArcScene about aquifer depth. I hope to use them to create an animation to show the change of aquifer depth through time. I used "create group animation". But in the animation there're blanks when a new layer first load (as the picture below.) Should I lower down some...
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    Maps Minutes Hack #3: save time with up-to-date holiday business hours

    Part of our series on how to save time this holiday season with Google Maps. Whether you’re looking for restaurants open on Christmas Eve, trying to avoid crowds at the gym for a year-end workout, or wondering if you’ll make it before the store closes to grab that last minute gift–Google Maps...
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    Trying to optimize, arcpy.da.Walk seems slow - but not sure if that is the primary is

    So the deal is, I'm trying to automate a workflow that currently costs a co-worker about 45 minutes. General run down is this person copies files from a network drive onto a local one, and process it through four separate ArcGIS models, the code below does not comprise all of the geoprocesses...
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    ArcGIS frequency analysis tool

    Will the ArcGIS frequency analysis tool work on a shapefile's attribute table or does it only work on a discrete/standalone table loaded in a mapping session. Have loaded an geolocated address book into map and am trying to get a count by zip code (one to many), so I might join count to zip...
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    Analyzer errors were encountered (codes = 3) Failed to execute (StageService)

    I am running bellow python script on server using PuTTY and my .mxd file is also on server. This script is working fine till .sddraft creation but giving me error on staging service. import arcpywrkspc = '/home/gis/arcgis/server/arcpy/arcpy/idtech/Example/'mapDoc =...
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    Arcpy.sa NoData issue with saving TIFF

    Similar to the poster here, I am attempting to convert numerical NoData values to actual NoData cells. The solution in the linked question doesn't work for me, however, as when I use the save method to save to TIFF the numerical values are reintroduced. When I do this manually (using the GUI...
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    How can the students get Geospatial Information and make a map

    We propose one of the practical case that the students are able to handle Geospatial Information and to make a map by using the FOSS4G. In recent years, the informatization of education is progressing in Japan. Its aim is to distribute one information device per one child in 2020 by...
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    New White Paper: Virtualization of ArcGIS Pro

    ArcGIS Pro works great in virtual environments. Learn more about how to properly virtualize ArcGIS Pro with this Esri whitepaper. Esri performed extensive benchmarking in order to help IT professionals implement high performance and scalable solutions for GIS users. أكثر...
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    Cartodb tooltips don't appear when zoom value is not an integer

    Building a custom cartodb map here using the createLayer process. With the vast difference in visual appearance and scale between zoom levels of 4 and 5, I am aiming to default to a zoom level of 4.5. This works perfectly fine as far as the map view goes. However, when I am at this zoom level...
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    How do I select polygons that overlap by a specified percentage of overlap?

    I have two polygon layers. One represents parcels, the other is a hazard zone. How do I return only parcels where more than 30% of the parcel area overlaps the hazard zone? For example a parcel with an area of 100,000 square feet with 35,000 square feet inside the hazard zone should be returned...
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    Merge Feature Records with Identical Parameters in Two Different Fields using ArcPy o

    I'm trying to merge feature records based on identical parameters in two different fields using Python or SQL. I have a polygon feature class with ~800 records, that I've intersected with another feature, which has created a number of duplicated geometry fragments. The intersected feature...
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    Custom mobile maps with Mapbox Studio + Twitter Fabric

    Starting today, our iOS and Android SDKs are available on Twitter Fabric. Fabric is a free, modular development platform that streamlines the process of finding and using the best mobile SDKs in your apps. Integrating Mapbox in your app is now easy as clicking a button and adding a few...
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    Converting GeoTIFF projection definition to proj4

    I'm working with las/laz files which often have GeoTIFF information attached to them. However, for further processing I need proj4 definitions. http://spatialreference.org/ has helped me so far to convert between both manualy but ideally I'd like to do that automatically.Is this possible...
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    Graph: Undirected, with cost and reverse cost

    What is the purpose of a graph that is "undirected, with cost and reverse cost"?Where is the difference to a graph that is "undirected, with cost" ? For me it does not really make sense, because for my understanding the reverse cost should just come into play when the graph is directed ...
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    Need to find a point a given distance along a linestring

    Need to take a linestring and find a coord every x meters along the line. I tried using the SQL Server Spatial Tools and found .NET to be slow and after 5(ish) days of processing, SQL server (or .NET) just stops working. I'm moving away from .NET to a native approach and still use SQL Server...
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    ModelBuilder - Convert Empty line feature class to a point

    I have a modelbuilder to work as a tool.The workflow is that buffer 30 meters in the rivers and then intersect with classification feature class (vegetation and production area) then the result is selected (only the production area) and is converted to "feature to line" and then "feature to...
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    Using Field Calculator to compare two fields in att table and returning if equal or n

    Using 10.2.2 I am attempting to compare two fields in an attribute table using the Field Calculator. I'd like to return a value of '0' if they are equal and a value of '1' of they are not equal. There are 600,000 records to compare and the overwhelming majority will end up being equal. So...
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    longitudes look flipped when displaying geoserver kmz on google maps

    Any ideas on how to get my raster overlay lined up properly on google maps? The geoserver layer is re-projected from EPSG:4269 to 3857 before serving it to google maps. To me it looks as if the longitudes are flipped. Here is my code snippet and output on JSFiddle. أكثر...
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    Correcting Errors in Height Above Nearest Drainage (HAND) model

    I have used this tread Spatial Analysis - Calculate a cells elevation (height) above the nearest stream cell to create a HAND map in ArcGIS. First I used the hydrology toolset to fill in sink in the SRTM DEM, the generated the flow direction, flow accumulation,and the drainage networks. I then...
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