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POC: WIP: Add note regarding bug in meca ignoring a colormap set up via makecpt in GMT 6.7.0 #4887

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POC: WIP: Add note regarding bug in meca ignoring a colormap set up via makecpt in GMT 6.7.0 #4887

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88a75db
Add note regarding meca cpt setup bug in GMT 6.7.0
yvonnefroehlich Sep 9, 2026
53fba21
Fix note synthax
yvonnefroehlich Sep 9, 2026
dcdd504
Add note to gallery example
yvonnefroehlich Sep 9, 2026
b7d4476
Merge branch 'main' into add-note-meca-cpt-670
yvonnefroehlich Sep 10, 2026
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5 changes: 5 additions & 0 deletions examples/gallery/seismology/meca.py
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Expand Up @@ -9,6 +9,11 @@
compressive and extensive quadrants can be filled either with a color or a pattern via
the ``compression_fill`` and ``extension_fill`` parameters, respectively. Use the
``pen`` parameter to adjust the outline of the beachballs.

For GMT 6.7.0, a colormap set up via ``pygmt.makecpt`` and applied as ``cmap=True``
is ignored. For details, please see the upstream GMT
[issue 9176](https://github.com/GenericMappingTools/gmt/issues/9176) and
[PR 9177](https://github.com/GenericMappingTools/gmt/pull/9177).
"""

# %%
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5 changes: 5 additions & 0 deletions examples/tutorials/advanced/focal_mechanisms.py
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Expand Up @@ -303,6 +303,11 @@
# ``depth``, e.g., by moment magnitude or hypocentral depth, respectively. Use the
# parameter ``cmap`` to pass the desired colormap. Now, the fills of the small circles
# indicating the event locations are given by the colormap.
#
# For GMT 6.7.0, a colormap set up via ``pygmt.makecpt`` and applied as ``cmap=True``
# is ignored. For details, please see the upstream GMT
# [issue 9176](https://github.com/GenericMappingTools/gmt/issues/9176) and
# [PR 9177](https://github.com/GenericMappingTools/gmt/pull/9177).

fig = pygmt.Figure()
fig.coast(region="d", projection="N10c", land="lightgray", frame=True)
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7 changes: 7 additions & 0 deletions pygmt/src/meca.py
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Expand Up @@ -337,6 +337,13 @@ def meca(
automatically. The color of the compressive quadrants is determined by the
z-value (i.e., event depth or the third column for an input file). This setting
also applies to the fill of the circle defined via ``offset``.

.. note::
For GMT 6.7.0, a colormap set up via ``pygmt.makecpt`` and applied as
``cmap=True`` is ignored. For details, please see the upstream GMT
[issue 9176](https://github.com/GenericMappingTools/gmt/issues/9176) and
[PR 9177](https://github.com/GenericMappingTools/gmt/pull/9177).

no_clip
Do **not** skip symbols that fall outside the frame boundaries [Default is
``False``, i.e., plot symbols inside the frame boundaries only].
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