Hi Andreas, for sure it would be much better to use the webservice directly but I´m already investigating with CARTO and it seems there´s no WMS support - if I have any update on this, I´ll share with you.
EPSG:4326 would be perfect for me, even though I know the original file is in Magna Sirgas (EPSG:4686). 2016-11-07 19:15 GMT-02:00 Andreas Neumann <[email protected]>: > Hi Juliana, > > First, I would investigate with Carto, if you really cannot embed a WMS. > It would be much better to use the webservice directly rather than > downloading and uploading and then end up with an outdated image. > > If that does not work, you need to set a meaningful resolution. As we can > see in your screenshot the resolution text input fields are empty. Also > check if the projection is correct. Do you really want to save in EPSG:4326 > or rather in a meter based system? > > What kind of data are you saving? Orthoimages or maps with few colors or > black and white? If it is orthoimages, I would use JPEG compression in the > Geotiff, otherwise probably deflate/LZW. > > Then you have to find a meaningful resolution. If you really want to save > in EPSG:4326, you have to specify a resolution in decimal degrees. Try with > larger values first, such as 0.05 and then, if it is too coarse go to > smaller values. > > About polygonizing raster to vector: this really depends on the content - > and I kind of doubt it if you really get meaningful results. Maybe it works > with few colors and homogeneous areas. It certainly would not work well for > aerial images. > Hope it helps, > Andreas > > Am 07.11.2016 um 22:05 schrieb Juliana Mori: > > Hi Andreas, > > thanks for your reply. > > I chose layer extent for extensions and current layer for resolution but > still doesn´t work. > > > > > Should I do this in a different way? > > About the bigger question, no, CARTO doesn´t allow uploading geotiffs. > What I´ve done so far is polygonizing the rasters in QGis and uploading the > converted shapefile to CARTO. As you said WMS can´t be converted into > shape, I´m not sure this is going to work at all... won´t I be able to > polygonize a raster downloaded from a WMS server? > > All the best, Juliana. > > > > > > 2016-11-07 18:44 GMT-02:00 Andreas Neumann <[email protected]>: > >> Hi Juliana, >> >> "Save AS" as a WMS should work fine - but you need to specify a useful >> extent and resolution (in map units of your projection). Otherwise it >> probably fails. >> >> I just tested it and it works fine. >> >> The bigger question is: will CARTO allow to upload larger Geotiff files? >> Did you check that? >> >> Note that WMS are always raster. You can't convert it into a shp file. >> >> Andreas >> >> Am 07.11.2016 um 21:27 schrieb Juliana Mori: >> >> Hello, >> >> I have loaded a wms server to QGis, which is a raster format. As I need >> to use this in an external aplication (CARTO) which does not support wms, >> I´m trying to export the server loaded into QGIS through "save as" >> funcionality. But it´s not working. >> >> Do you know how I can export the wms loaded to a file (raster or shp)? >> >> Thanks a lot, Juliana. >> >> >> ps:: I´m working with QGis Essen, 2.14.3 >> >> -- >> *Juliana Mori* >> www.julianamori.com >> >> >> >> _______________________________________________ >> Qgis-user mailing [email protected] >> List info: http://lists.osgeo.org/mailman/listinfo/qgis-user >> Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user >> >> _______________________________________________ Qgis-user mailing list >> [email protected] List info: http://lists.osgeo.org/mailman >> /listinfo/qgis-user Unsubscribe: http://lists.osgeo.org/mailman >> /listinfo/qgis-user > > -- > *Juliana Mori* > www.julianamori.com > +55 11 999653145 > > -- *Juliana Mori* www.julianamori.com +55 11 999653145
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