Hi All:
I use QgsGraduatedSymbolRendererV2 to simulate colorbar (like
matplotlib.colorbar)
use rendererV2.setClassAttribute to show using certain field
But there are some feature where its value of that field is NULL
I found that value NULL seems to be shown as value zero (range 0 - 0 )
Could I distinguish value NULL & zeros with different symbol?
or Could I make a symbol for NULL value?
THX
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