fix bug in label rendering code
fix bug in label rendering code

The bug caused large text sizes to be cropped. This fixes issue

biasmv/pv,biasmv/pv,biasmv/pv,biasmv/pv,CyrusBiotechnology/pv,CyrusBiotechnology/pv,CyrusBiotechnology/pv,CyrusBiotechnology/pv