thank you Alex
and thank you Otto
when I do take a projected coord system (set to wgs84 zone 47N), the
measurements are correct.
but then arises a new problem, as I have a raster shaded relief as
geotiff overlayed, that is referenced in wgs84. projection on the fly
makes this raster invisible... strangely! and I havent found out how to
work around this yet. i cant work out to reproject this raster either,
somehow nothing ever happens using the gdal raster translation.
any ideas how to solve this little problem? :-)
cheers
markus
Alex Mandel schrieb:
Markus Nater wrote:
Hi List
I have some polygons in qgis with wgs84 projection. But when I try to
measure distance in meters, it gives me back 1cm for 0.1 degrees, which
is of course totally wrong.
how can I fix this, so I will have the correct measurements in meters?
cheers
markus
Enable projection on the fly, and pick a projected coordinate system.
Technically in WGS84 the best you could get is great circle distances,
and I'm not sure the measure tool does this yet. So you need to be in a
projection that flattens the map evenly for distance measurement.
Alex
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