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comment Seeking shapefile for Pacific Ring of Fire?
@user3667365 have a look at commons.wikimedia.org/wiki/File:Pacific_Ring_of_Fire.svg, which claims commons.wikimedia.org/wiki/User:Gringer as the author, with vector data from evl.uic.edu/pape/data/WDB
1d
comment Coordinate points not lining up with a preexisting map on QGIS
Where did you get the coordinates in the CSV from, and how large is the offset in meters? Can you provide sample coordinates of points that can be recognized in Openstreetmap or Google imagery?
2d
comment Generate 1 shape out of many GPX files
@Skye the answers given in your link are based on GDAL and work even without QGIS!
2d
comment Change the actual coordinates in a shapefile (QGIS)
Can you add the content of the .prj file, and the extent given by Rightclick on the layer, Properties, Metadata, Properties field?
2d
comment Coordinate points not lining up with a preexisting map on QGIS
Degree coordinates should be fine, using EPSG:4326 WGS84 or EPSG:4269 NAD83, but they should be in longitude-latitude order, and decimal degrees instead of degrees-minutes-seconds. Longitudes in the US must be negative.
Apr
27
comment Convert resolution of geojson file from 1:10 to 1:110
They have a world coastline, you have to cut it between Europe and Asia where you think it should be. A simple task with QGIS.
Apr
27
comment QGIS 2.14 Georeferencer Issue
It surely helps if you can share the files. And a picture of your transformation settings window might be helpful too.
Apr
27
comment How do you line up a pre-existing public domain map with csv coordinate points on QGIS?
Duplicate of gis.stackexchange.com/questions/191276/…
Apr
27
comment Coordinate points not lining up with a preexisting map on QGIS
Can you provide a link to the county map?
Apr
26
comment Cannot locate GRASS plugin in QGIS 2.14.1 on Linux
By now, the ubuntugis stable also has support for QGIS 2.8.3 and Grass 7. But I can't see from the file description which grass version is supported by the plugin.
Apr
26
comment Shapefile Polygon does not display in QGIS
QGIS reads the header, and takes the extent data as correct. If you feed garbage, you get garbage. Not really a reason to blame the QGIS developers on that.
Apr
26
comment Some characters in OpenStreetMap display as rectangles
It might be an encoding issue. Openstreetmap uses UTF-8. I`m not sure if this has to be set in Postgres or Mapnik explicitely.
Apr
26
comment Converting shapefile data to OpenStreetMap data?
Please insert details about the shapefile. If it only contains a border line, you will get no roads and relations. You might have to convert the line to a polygon to have a polygon in planet_osm_polygon.
Apr
26
comment QGIS 2.14 Georeferencer Issue
You can change the CRS inside the georeferencer window under Settings -> Transformation settings, Target SRS. It should always be the same as the project CRS, if you pick your points from the canvas. The residuals should be small, otherwise the result is useless.
Apr
22
comment Raster rotation on QGIS
You can do it with projected coordinates, see gis.stackexchange.com/questions/79093/… and gis.stackexchange.com/questions/181526/…. See also gis.stackexchange.com/questions/37790/…
Apr
22
comment Converting from unknown coordinate system into common one using fiducial points?
If you can share a sample of points in both CRS (3 at least), I can write one ;-)
Apr
21
comment How to resolve error when launching OSeo4W Shell: Windows cannot find .bat file?
From gisinternals, download download.gisinternals.com/sdk/downloads/…, extract it to a folder, and start SDKShell.bat. Much easier than OSGeo4W.
Apr
21
comment Proj4js not working
21.76,39.55 is surely no gnomonic projection, but EPSG:4326 lonlat degrees if it should be in Greece.
Apr
21
comment Coordinates calculation using QGIS
Union still has the border in the middle. Dissolve using Dissolve all creates one polygon covering all elements.
Apr
20
comment Postgres error: fatal role “username” does not exist
If you installed postgres twice, the second will run on a different port. Evene after deinstallation of the first.