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In QGIS, a memory layer is like a normal vector layer, but it is created to be temporary. You can create memory layers by using the new memory layer plugin. Notice that the layer will only exists within your current open project. Once the project is closed, IT WILL DISAPPEAR. You can workaround this with another plugin called memory layer saver that, ...


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You're talking about the Contour Lines From Points model. I still have 2.4, I saved it for you as a .model Link to Dropbox


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In order to use this data in PostGIS or another system you need to convert the start-center-end arcs into start-midpoint-end arcs. This is actually pretty easy. In vector terms, you subtract the center from the start- and end-points. Now you can get the mid-point of the arc by adding the start- and end-points together, then normalizing to the radius of ...


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For the record, the question was answered in the GRASS User list: http://lists.osgeo.org/pipermail/grass-user/2014-December/071451.html


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Maybe try something like this? http://docs.geotools.org/stable/userguide/library/jts/geometry.html#creating-circularstring


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After a lot of thinking and research here, I believe I found a solution. I would love to receive some peer review and feedback on this approach. I used ogr2ogr to generate a GeoJSON file from a PostGIS query using the CIRCULARSTRING function. ogr2ogr -s_srs EPSG:26910 -t_srs EPSG:26910 -f GeoJSON testArc.geojson PG:"host=localhost ...


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(Disclosure: I am part of the WOUDC data centre renewal team) The data centre is undergoing renewal in order to modernize client services. Improved data access is one of the major enhancements (which includes geospatial web services and formats; see the data access about page for details). Users are encouraged to provide feedback against the beta. For ...


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Probably you are looking for this page: This page lists implementations of software that work with vector tiles using the Mapbox protobuf format.


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As pointed out by @Greg, instead of TileStream (my first attempt) you should use Tilelive to host your own vector tiles. Tilelive isn't a server itself but a backend framework that deals with tiles in different formats from different sources. But it's based on Node.js so you can turn it into a server in a pretty straight-forward way. To read tiles from a ...


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why don't you use a Basemap as the background layer? (if you are working in ArcGIS). For the boundary lines it should be also very easy to find that. There are several shapefiles out there, just google for Istanbul shapefiles.


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Thanks for the great question. I did not know that they had finally released a stable version of the vector tiles. Moreover, you may have to work with this answer as it is a source of ideas to your "any ideas?" question. I do not have a running studio yet. I think one of the problems that you are running into is that you are using a tilejson file. You ...


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Yo uhave the municipality boundaries a a shapefile, and your jpeg has "homogeneous" values inside each municipality. Therefore, the best method to get your values is tansfer the values of eac band. It is easy if you have spatial analyst licence: 1) feature to point with the "inside" option to build the centroid (or add XY fields and make XY event layer if ...


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The problem is due to the presence of non-ascii characters in the path of the output file, so you just change the path name to something else that contains ordinary characters (e.g. UTF-8) and try again.


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It needs to be set in the "layerOptions" parameter. This parameter takes a list of strings of the format "OPTION=VALUE", corresponding to OGR layer options for the vector format. So, for coordinate precision, try setting this parameter to: ['COORDINATE_PRECISION=3'] (or whatever your desired precision is). Additional valid parameters are listed on the OGR ...


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In general, the library will not render data that is not shown in the viewport, but if there is a huge amount of data it might be taking some time to retrieve it and parse. Can you open a web-inspector and see how long it takes to get the data? And see if the profiler gives you any other info? I don't know how OpenLayers handles KML, but you could also ...


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Create a new line layer with an encoding which is suitable for Cyrillic letters and try again. If it works, copy the features from your old layer into the new one and continue from there.


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I would not normally jump in when a question has effectively been answered in the comments but it seems some confusion has crept in. If you want to export your raster as is but with compression there are lots of ways of doing it but Project->Save as Image is NOT one of them. This takes a georeferenced snapshot of the current data view, which can be ...



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