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Grdblend fix 9248 #9249

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Merged
joa-quim merged 4 commits into from
Oct 8, 2026
Merged

Grdblend fix 9248 #9249

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c669fed
Add grdimage pbr test
joa-quim Sep 24, 2026
8b6cdc6
Merge branch 'master' of https://github.com/GenericMappingTools/gmt
joa-quim Oct 1, 2026
719a4b8
Merge branch 'master' of https://github.com/GenericMappingTools/gmt
joa-quim Oct 8, 2026
5551394
Fix grdblend bug #9248
joa-quim Oct 8, 2026
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10 changes: 8 additions & 2 deletions src/grdblend.c
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Original file line number Diff line number Diff line change
Expand Up @@ -499,7 +499,11 @@ GMT_LOCAL int grdblend_init_blend_job(struct GMT_CTRL *GMT, char **files, unsign
if (srtm_job)
GMT_Report (GMT->parent, GMT_MSG_INFORMATION,
"Convert tile from JPEG2000 to netCDF grid [%s]\n", B[n].file);
if (gmt_get_tempname (GMT->parent, "grdblend_reformatted", ".nc", buffer))
char template[GMT_LEN32] = {""};
/* One template per grid, as for the resampled ones above: MSVC's _mktemp_s hands back the
same name every time, so a fixed template made every reformatted grid overwrite the last */
sprintf(template, "grdblend_reformatted_%d", n);
if (gmt_get_tempname(GMT->parent, template, ".nc", buffer))
return GMT_RUNTIME_ERROR;
snprintf (cmd, GMT_LEN256, "%s %s %s -V%c", B[n].file, Rargs, buffer, V_level[GMT->current.setting.verbose]);
if (gmt_M_is_geographic (GMT, GMT_IN)) strcat (cmd, " -fg");
Expand All @@ -520,7 +524,9 @@ GMT_LOCAL int grdblend_init_blend_job(struct GMT_CTRL *GMT, char **files, unsign
}
B[n].memory = false; /* Since we read from file, even if it was a mem-grid before */
t = B[n].G->header; /* Since it got reallocated */
if (grdblend_overlap_check (GMT, &B[n], h, 0)) continue; /* In case grdconvert changed the region */
/* In case grdconvert changed the region. Only for longitudes, as the checks above: on a
Cartesian grid this +-360 "adjustment" shifts the tile's columns off the output grid */
if (gmt_M_x_is_lon(GMT, GMT_IN) && grdblend_overlap_check(GMT, &B[n], h, 0)) continue;
}
if (B[n].weight < 0.0) { /* Negative weight means invert sense of taper */
B[n].weight = fabs (B[n].weight);
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