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Commit 9731438

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DOC: hove rcParams validation whats new
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‎doc/users/whats_new.rst

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@@ -484,6 +484,38 @@ the API required by a class that is to be used as the ``writer`` in the
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:class:`~matplotlib.animation.MovieWriter` class now derives from the new
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abstract base class.
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Validation of line style rcParams
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---------------------------------
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Stricter validation
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~~~~~~~~~~~~~~~~~~~
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The validation of rcParams that are related to line styles
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(``lines.linestyle``, ``boxplot.*.linestyle``, ``grid.linestyle`` and
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``contour.negative_linestyle``) now effectively checks that the values
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are valid line styles. Strings like ``dashed`` or ``--`` are accepted,
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as well as even-length sequences of on-off ink like ``[1, 1.65]``. In
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this latter case, the offset value is handled internally and should *not*
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be provided by the user.
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The validation is case-insensitive.
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Deprecation of the former validators for ``contour.negative_linestyle``
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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The new validation scheme replaces the former one used for the
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``contour.negative_linestyle`` rcParams, that was limited to ``solid``
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and ``dashed`` line styles.
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The former public validation functions ``validate_negative_linestyle``
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and ``validate_negative_linestyle_legacy`` will be deprecated in 2.1 and
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may be removed in 2.3. There are no public functions to replace them.
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Examples of use
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~~~~~~~~~~~~~~~
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::
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grid.linestyle : (1, 3) # loosely dotted grid lines
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contour.negative_linestyle : dashdot # previously only solid or dashed
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Performance
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+++++++++++
@@ -519,38 +551,6 @@ values are unlikely to cause any visible differences in your plots.
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Pending
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+++++++
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Validation of line style rcParams
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---------------------------------
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Stricter validation
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~~~~~~~~~~~~~~~~~~~
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The validation of rcParams that are related to line styles
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(``lines.linestyle``, ``boxplot.*.linestyle``, ``grid.linestyle`` and
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``contour.negative_linestyle``) now effectively checks that the values
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are valid line styles. Strings like ``dashed`` or ``--`` are accepted,
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as well as even-length sequences of on-off ink like ``[1, 1.65]``. In
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this latter case, the offset value is handled internally and should *not*
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be provided by the user.
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The validation is case-insensitive.
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Deprecation of the former validators for ``contour.negative_linestyle``
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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The new validation scheme replaces the former one used for the
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``contour.negative_linestyle`` rcParams, that was limited to ``solid``
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and ``dashed`` line styles.
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The former public validation functions ``validate_negative_linestyle``
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and ``validate_negative_linestyle_legacy`` will be deprecated in 2.1 and
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may be removed in 2.3. There are no public functions to replace them.
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Examples of use
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~~~~~~~~~~~~~~~
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::
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grid.linestyle : (1, 3) # loosely dotted grid lines
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contour.negative_linestyle : dashdot # previously only solid or dashed
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New keyword argument 'sep' for EngFormatter
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-------------------------------------------

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