collapsing StackedGroupedBarGraph

[fglueck]

I have a StackedGroupedBarGraph with keys like 'avg', '20.6.', '27.06.'. Anything works fine with:

'guideline'    => [
          [ current($rows)['cur_avg'], '⌀ aktuell', 'y', 'length_units'=>13, 'text_position'=>'inside top right 0 0'  , 'dash'=>'7,5', 'colour'=>'#286aac', 'text_colour'=>'#286aac' ]
        , [ current($rows)['his_avg'], '⌀ Vorjahr', 'y', 'length_units'=>14, 'text_position'=>'inside top right -10 0', 'dash'=>'5,7', 'colour'=>'#aaaaaa' ]
        , ['avg', "", 'x',
              'stroke_width' => 2, 'dash' => '3',
              'text_position' => 'bottom right -3 -15',
              'text_angle' => -90,
          #    'font' => 'Arial',
        ]
      ],

but than is the guideline before "avg", if I try to set it to '20.6.' ( ... , ['20.6.', "", 'x', ... ) then the bars are very small and the x-Achsis is not filled up to end (~66% used).
It looks like a problem with the "datevalue" 20.6., it is the beginning of a week and this triggers an automatisem for scalling or some else.

'guideline'    => [
          [ current($rows)['cur_avg'], '⌀ aktuell', 'y', 'length_units'=>13, 'text_position'=>'inside top right 0 0'  , 'dash'=>'7,5', 'colour'=>'#286aac', 'text_colour'=>'#286aac' ]
        , [ current($rows)['his_avg'], '⌀ Vorjahr', 'y', 'length_units'=>14, 'text_position'=>'inside top right -10 0', 'dash'=>'5,7', 'colour'=>'#aaaaaa' ]
        , ['20.6.', "", 'x',
              'stroke_width' => 2, 'dash' => '3',
              'text_position' => 'bottom right -3 -15',
              'text_angle' => -90,
          #    'font' => 'Arial',
        ]
      ],

[fglueck]

I found a little workarround, I use a shape:

'shape' => ['line', 'x1' => 'g1', 'y1' => "gt", 'x2' => 'g1', 'y2' => 'g0', 'stroke-width' => 3, 'stroke' => '#f0f'],

[goat1000]

Could you give me a script that I can use to reproduce this? I suspect it is some kind of number/date/string conversion problem, but I can't tell where it is going wrong from your description.

[fglueck]

I think you need sample data's. Sorry this week not time. I'll do it in the near future.