Hi Folks I am trying to update a 2.x snippet I have which iteratively sets the CRS with sequentially higher LO values:
https://gist.github.com/timlinux/1057c2c6b5ebda6ed2b5aa8c5aa21372 # Uses a trick from Alexander Neto: "I created a orthographic projection with lisbon longitude, but with a south hemisphere latitude # That way kinda looks 3d" # This will make the QGIS use a world projection and then move the center # of the CRS sequentially to create a spinning globe effect import time from subprocess import call longitude_increments = 5 image_counter = 1 for i in range(-180, 180, longitude_increments): definition = ( '+proj=ortho +lat_0=-20 +lon_0=%i +x_0=0 +y_0=0 +R=6371000 +units=m +no_defs +type=crs' % i) crs = QgsCoordinateReferenceSystem() crs.createFromProj(definition) iface.mapCanvas().mapSettings().setDestinationCrs(crs) #iface.mapCanvas().setMapUnits(0) iface.mapCanvas().refresh() iface.mapCanvas().saveAsImage( '/tmp/globe-%03d.png' % image_counter) image_counter += 1 print (definition) time.sleep(1) # Now generate the GIF. If this fails try run the call from the command line # and check the path to convert (provided by ImageMagick) is correct... call('/usr/bin/convert -delay 35 -loop 0 /tmp/globe-*.png /tmp/globe.gif') The example python above using Orthographc North will hopefully make a more pleasing looking spinny globe. However, in QGIS 3.x the code runs but if I inspect the mapcanvas CRS after setting the new CRS, it still shows the old CRS. Can anyone see what I am missing here? Thanks! Regards Tim -- ------------------------------------------------------------------------------------------ Tim Sutton Visit http://kartoza.com to find out about open source: * Desktop GIS programming services * Geospatial web development * GIS Training * Consulting Services Tim is a member of the QGIS Project Steering Committee -------------------------------------------------------------------------------------------
_______________________________________________ QGIS-Developer mailing list [email protected] List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
