Hello, On Wed, Nov 19, 2014 at 12:37 PM, remicres <[email protected]> wrote:
> The otbProjection of the input image (MOD13Q1 product) is instanciated > with errors, which explain why reprojection fails. > Why is the projection so bad? Apparently this comes from the fact that the > datum is unknown by OSSIM (See this topic > <https://groups.google.com/forum/?fromgroups#%21topic/otb-users/RuCoBV0ZWl8>). > > Indeed, ossim-info fails to find that the datum is custom with a > zero-valued flattening parameter (ossim-info prints that major-axis is not > equal to minor-axis, that's wrong). > > So the problem described in this topic seems to be 100% related to OSSIM > (By the way proj4 does not seems to be related to this issue becaus > GDAL/OGR have no problem to deal with the MOD13Q1 custom projection wkt) > > If I have the time I will try to find something to fix this. > (If someone has knowledge to share here about OSSIM > templates/factories/geometry files, it could be nice!) > maybe you already know... If no you can ask reach to ossim developers at - https://lists.sourceforge.net/lists/listinfo/ossim-developer and you can file bug on their tracker - http://trac.osgeo.org/ossim/newticket Cheers, Rémi Le mardi 4 novembre 2014 14:19:21 UTC+1, Raúl Nanclares a écrit : > > Open the image with a viewer and zoom until you see the shape of the > pixels. > El nov 4, 2014 3:36 AM, "remicres" <[email protected]> escribió: > >> >> >> Le vendredi 31 octobre 2014 16:45:02 UTC+1, Raúl Nanclares a écrit : >>> >>> Remi that's the correct definition for the GCS, though it says spheroid >>> it's a ellipsoid. You have the radius and the flattening parameter (f = >>> 1/298.257223563). >>> >>> You have different GSD in the two images that may be causing the >>> difference in origin. ¿Can you please check the shape of your pixels? If i >>> recall correctly when you reproject MODIS using other tools than the ones i >>> mentioned before you get parallelogram-shaped pixels not squares. >>> >> >> Sorry... How can I check the shape of my pixels? >> >> -- >> -- >> Check the OTB FAQ at >> http://www.orfeo-toolbox.org/FAQ.html >> >> You received this message because you are subscribed to the Google >> Groups "otb-users" group. >> To post to this group, send email to [email protected] >> To unsubscribe from this group, send email to >> [email protected] >> For more options, visit this group at >> http://groups.google.com/group/otb-users?hl=en >> --- >> You received this message because you are subscribed to a topic in the >> Google Groups "otb-users" group. >> To unsubscribe from this topic, visit https://groups.google.com/d/ >> topic/otb-users/WmeCNAICeww/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> > -- > -- > Check the OTB FAQ at > http://www.orfeo-toolbox.org/FAQ.html > > You received this message because you are subscribed to the Google > Groups "otb-users" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/otb-users?hl=en > --- > You received this message because you are subscribed to the Google Groups > "otb-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- Regards, Rashad -- -- Check the OTB FAQ at http://www.orfeo-toolbox.org/FAQ.html You received this message because you are subscribed to the Google Groups "otb-users" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/otb-users?hl=en --- You received this message because you are subscribed to the Google Groups "otb-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
