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PaulWessel merged 1 commit into from
Feb 24, 2023
Merged

Improve docs for grdimage -Q #7260

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8 changes: 4 additions & 4 deletions doc/rst/source/grdimage.rst
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Expand Up @@ -166,12 +166,12 @@ Optional Arguments

.. _-Q:

**-Q**\ [*color*][**+z**\ *value*]
**-Q**\ [**+z**\ *value*][*color*]
Make grid nodes with NaN values transparent, using the color-masking
feature in PostScript Level 3 (the PS device must support PS Level 3).
Use **+z** to select another grid value than NaN.
If input is instead an image then black pixels are set to be transparent;
append an alternate color to select another pixel value to be transparent.
If the input is a grid, use **+z** to select another grid value than NaN.
If input is instead an image, append an alternate color to select another
pixel value to be transparent [Default is black].

.. |Add_-R| replace:: |Add_-R_links|
.. include:: explain_-R.rst_
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