Thanks to visit codestin.com
Credit goes to github.com

Skip to content

Commit 18169b2

Browse files
tacaswelltacaswell
committed
Merge pull request #3973 from endolith/Qualitative_ListedColormap
API: Convert qualitative colormaps to ListedColormap
2 parents f2cccf8 + 411d0b3 commit 18169b2

5 files changed

Lines changed: 490 additions & 1104 deletions

File tree

‎doc/api/api_changes/qualitative colormaps.rst‎

Lines changed: 11 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,11 @@
1+
Qualitative colormaps
2+
---------------------
3+
4+
Colorbrewer's qualitative/discrete colormaps ("Accent", "Dark2", "Paired",
5+
"Pastel1", "Pastel2", "Set1", "Set2", "Set3") are now implemented as
6+
``ListedColormap`` instead of ``LinearSegmentedColormap``.
7+
8+
To use these for images where categories are specified as integers, for
9+
instance, use::
10+
11+
plt.imshow(x, cmap='Dark2', norm=colors.NoNorm())

‎doc/users/whats_new/qualitative colormaps.rst‎

Lines changed: 9 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,9 @@
1+
Qualitative colormaps
2+
---------------------
3+
4+
ColorBrewer's "qualitative" colormaps ("Accent", "Dark2", "Paired",
5+
"Pastel1", "Pastel2", "Set1", "Set2", "Set3") were intended for discrete
6+
categorical data, with no implication of value, and therefore have been
7+
converted to ``ListedColormap`` instead of ``LinearSegmentedColormap``, so
8+
the colors will no longer be interpolated and they can be used for
9+
choropleths, labeled image features, etc.

0 commit comments

Comments
 (0)