Opened 13 years ago

Closed 9 years ago

#3993 closed defect (invalid)

Warping artefacts near dateline (+/-180°)

Reported by: Andrey Owned by: warmerdam
Priority: highest Milestone:
Component: GDAL_Raster Version: unspecified
Severity: normal Keywords: dateline gdalwarp
Cc:

Description 

gdalwarp -t_srs "+proj=merc +ellps=WGS84 +datum=WGS84 +lat_ts=0 +lon_0=0 +x_0=0 +y_0=0 +k_0=1 +units=m +nadgrids=@null +wktext +no_defs" -te -20037508.343 -20037508.343 20037508.343 20037508.343 -ts 512 512 -ot Float32 -wt Float32 -r cubicspline -multi GTOPO30.tif GTOPO30_merc_zl01.tif

Software: gdal-18-1600-core, GDAL-1.8.0.win32-py2.6 (both from ​http://vbkto.dyndns.org/sdk/) on Windows 7 Professional x64

My task: resampling (and reprojecting to Merc) of GTOPO30 from zoom level 7 (-ts 32768 32768) to zoom level 1 (see above).

Attachments (1)

srtm30_merc_zl01.zip​ (494.3 KB ) - added by Andrey 13 years ago.

Download all attachments as: .zip

Change History (2)

by Andrey, 13 years ago

Attachment: srtm30_merc_zl01.zip​ added

comment:1 by Even Rouault, 9 years ago

Resolution: → invalid
Status: new → closed

The source dataset wasn't provided. I'd note the bounds are going beyond the dateline. Using 20037508.34 instead of 20037508.343 should probably avoid artifacts

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