[GRASS-user] Projection errors with Aster GDEM and SHP Files

[preiaen]

Dear Markus, 

thank you for your answer. I did as you suggested and below are the results.
As far as I can understand it, it looks fine, however the error remains.

*For the shapefile: *

*g.proj -g:*

-PROJ_INFO-------------------------------------------------
name       : WGS 84 / Pseudo-Mercator
datum      : wgs84
ellps      : wgs84
proj       : merc
lat_ts     : 0.0
lon_0      : 0.0
x_0        : 0.0
y_0        : 0
k          : 1.0
wktext     : defined
no_defs    : defined
-PROJ_EPSG-------------------------------------------------
epsg       : 3857
-PROJ_UNITS------------------------------------------------
unit       : meter
units      : meters
meters     : 1

*ogrinfo:*

PROJCS["WGS 84 / Pseudo-Mercator",
    GEOGCS["WGS 84",
        DATUM["WGS_1984",
            SPHEROID["WGS 84",6378137,298.257223563,
                AUTHORITY["EPSG","7030"]],
            AUTHORITY["EPSG","6326"]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4326"]],
    PROJECTION["Mercator_1SP"],
    PARAMETER["central_meridian",0],
    PARAMETER["scale_factor",1],
    PARAMETER["false_easting",0],
    PARAMETER["false_northing",0],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["X",EAST],
    AXIS["Y",NORTH],
    EXTENSION["PROJ4","+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0
+lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +wktext
+no_defs"],
    AUTHORITY["EPSG","3857"]]

*For the DEM:*

g.proj -p                                                                       
-PROJ_INFO-------------------------------------------------
name       : WGS 84
datum      : wgs84
ellps      : wgs84
proj       : ll
no_defs    : defined
-PROJ_UNITS------------------------------------------------
unit       : degree
units      : degrees
meters     : 1.0

*gdalinfo:*

GEOGCS["WGS 84",
    DATUM["WGS_1984",
        SPHEROID["WGS 84",6378137,298.257223563,
            AUTHORITY["EPSG","7030"]],
        AUTHORITY["EPSG","6326"]],
    PRIMEM["Greenwich",0],
    UNIT["degree",0.0174532925199433],
    AUTHORITY["EPSG","4326"]]


Nils



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