[GRASS-user] Reprojection of raster maps in various platforms: projected coordinates are different

[Markus Neteler]

On Thu, Oct 8, 2015 at 9:36 PM, Uttam Kumar <uttamsinha09 at gmail.com> wrote:
> Hi All,
>
> This is the projection information of a single Landsat scene in ENVI, GRASS
> and using gdalwarp. GRASS and gdalwarp gave somewhat similar output but ENVI
> is totally different. I have been informed that the projected image from
> ENVI is correct as verified from the earlier work.
>
> Original data (in Sinusoidal Projection)
> ------------------------------------------------------
> Corner Coordinates:
> Upper Left  (-10801805.198W, 4130102.079N)
> Lower Left  (-10801805.198W, 3971252.079N)
> Upper Right (-10642955.198W, 4130102.079N)
> Lower Right (-10642955.198W, 3971252.079N)

So, I generated the upper left *corner* as a point:
echo "-10801805.198|4130102.079|1" | v.in.ascii input=- output=point

It appears to be located in California. Right?

>
> Reprojected in GRASS GIS (Lambert Azimuthal Equal Area, Datum: WGS84)

Can you please give more information here?

> ----------------------------------------------------------------------------------
> N:    5564460
> S:    5185590                        |
> E:   -5451390
> W:  -5762490

... is this the upper box?
In EU LAEA (EPSG 3035), my SIN point becomes

-674447.24192338|9862187.84799817

... without data it is hard to say. Could you export your SIN box as a
SHAPE file and make available?

Markus