Blog - what's supported

_posts/2018-08-21-what-is-supported.md

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+---
+layout: post
+title:  "What's supported in mpl-altair"
+date:   2018-08-21 4:15:00 -0500
+author: "Kimberly Orr"
+categories: about
+tags: "about"
+excerpt_separator: <!--read more-->
+---
+
+# What is supported in mpl-altair?
+
+**Supported Marks**
+- mark_circle
+- mark_point
+- mark_square
+- mark_line
+
+
+**Supported Encodings**
+
+channel | supported marks
+:--- | :---
+x | circle, point, square, line
+y | circle, point, square, line
+color | circle*, point*, square*, line
+fill | point*, line
+size |
+stroke | line
+
+*Only quantitative and temporal data are supported for these encodings.
+
+**Supported Axis modifications**
+
+ex:
+```python
+alt.Chart(df).mark_point().encode(
+    alt.X('a:Q', axis=alt.Axis(format='.2g'))
+)
+```
+
+attribute | support notes
+:--- | :---
+domain |
+format | Supported
+grid |
+labelAngle | supported?
+labelBound |
+labelFlush |
+labelOverlap |
+labelPadding |
+labels |
+maxExtent |
+minExtent |
+offset |
+orient |
+position |
+tickCount | Supported
+tickSize |
+ticks |
+title |
+titleMaxLength |
+titlePadding |
+values | Supported
+zindex |
+
+**Supported Scale modifications**
+
+ex:
+```python
+alt.Chart(df).mark_point().encode(
+    alt.X('a:Q', scale=alt.Scale(type='log'))
+)
+```
+
+attribute | support notes
+--- | ---
+base | supported
+clamp |
+domain | supported
+exponent |
+interpolate |
+nice |
+padding |
+paddingInner |
+paddingOuter |
+range |
+rangeStep |
+round |
+scheme |
+type | linear, log, time scales supported
+zero | supported