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Apr
15
comment OpenLayer Google Satellite plugin datum error
Note that the coordinates in the bottom line are project CRS, while the polygon layer can have a different CRS. You can change the coordinates display to degree with Project -> Project Properties, General tab, Coordinate Display section (only in the latest QGIS version). To get full QMS, go to Web -> QuickMap Services -> Settings, More services tab, Get contributed pack.
Apr
15
revised Why do layers with different CRS overlap fine but cannot be merged by location?
added 477 characters in body
Apr
15
revised Why do layers with different CRS overlap fine but cannot be merged by location?
formatting
Apr
15
answered Why do layers with different CRS overlap fine but cannot be merged by location?
Apr
15
comment Transformation from local projection to WGS84
Strangely, the WKTfromTif looks different from the gdalinfo output. But it contains the EPSG code 3857 (the first one), with which you can work on. Can you elaborate why the transformation "doesn't work"? You might have to subtract one row and column to get from upper left to lower right (coordinates can be mid cell or edge cell).
Apr
15
comment Transformation from local projection to WGS84
Have you tried the query method from gdal.org/osr_tutorial.html?
Apr
14
comment Transformation from local projection to WGS84
So you just want to reporject from EPSG:3857 to EPSG:4326. That should be a pretty simple task, see stackoverflow.com/questions/27131981/gdal-warping-in-c-sharp and gis.stackexchange.com/questions/20060/…
Apr
14
comment Draw the outline of a point cloud QGIS
You may need to buffer the hull to avoid touching the points, as required.
Apr
14
reviewed Approve Draw the outline of a point cloud QGIS
Apr
14
comment Identifying coordinate system?
I tried NAD83 too, but the points end up in Texas then. NAD27 has a different false Easting and Northing to avoid errors. BTW the URL states that the data is from Utah. stateplane.ret3.net notes that Utah central is correct for Salt Lake City.
Apr
14
comment Transformation from local projection to WGS84
The local CS is identifed ad Pseudo Mercator, centered by default off the Nigerian coast. This would be identical to EPSG:3857. I would expect a local CS to have an origin close to the study area. can you run gdalinfo on the file, and report the extent, and where you expect the data?
Apr
14
answered Identifying coordinate system?
Apr
14
comment Polygon another location
So take MULTIPOLYGON(((-1.121951 37.986504,-1.121243 37.986741,-1.120792 37.985794,-1.121479 37.985608,-1.121951 37.986504)))
Apr
14
comment Polygon another location
The Polygon data is now in Kenya. Where do you expect it to be? If you want La Condomina in Murcia/Spain, you have to swap the coordinates. WKT expects longitude-latitude order.
Apr
14
comment Importing XML data into QGIS
You have to open a terminal window in the bin folder, and type the command manually like in the second answer at superuser.com. Make sure to put the PDF in the same folder. I can open the Projects PV shapefile, but it does not look like the PDF. I guess you have to ask the data provider about the content.
Apr
14
comment Importing XML data into QGIS
I used pdftocairo from the poppler utiities under Windows to etxract just page 4, and it worked for me. QGIS did not like the svg output, but inkscape could transform it into dxf format which was readable by QGIS.
Apr
14
comment Importing XML data into QGIS
See my extended answer.
Apr
14
revised Importing XML data into QGIS
added 248 characters in body
Apr
14
revised Importing XML data into QGIS
added 253 characters in body
Apr
14
answered Importing XML data into QGIS