handle null values in stacked bars more carefully

timbod7 / haskell-chart

A 2D charting library for haskell

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handle null values in stacked bars more carefully #254

Closed clayrat closed 1 year ago

clayrat commented 1 year ago

As a follow-up to #253, this fixes a problem with rendering log-axis stacked bars when bottom bars have value 0, and updates the new test case correspondingly:

Cairo+PNG test20

Diagrams+SVG test20