[Qgis-user] Problems with Override definition for simbol size

[Alexandre Neto]

I'm trying to use override definitions to set a circular symbol of a
specific size.

The symbol units is in mm, and the expression used is:

0.0025 * "field_1"

I would expect that once printed, a point with a value of 20000 would have
a size of 50 mm diameter. But instead, it's just 22,5 mm.

This become more evident when, trying to create a legend for my map, I
duplicate the layer and create categories with some values and manually set
the symbols values. The 20000 value is set to 50 mm, and the legend prints
at the right.

I'm still using 2.8.1, but it seams that 2.8.2 is behaving the same way. Is
this a bug? Or am I missing something?

Thanks,

Alexandre Neto
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