Hello,

now, i plot curve with a logarithmic X axis:

Qt Code: 
  1. myplot->setAxisScaleEngine(QwtPlot::xBottom, new QwtLog10ScaleEngine)
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the result is not very nice:

the original scale is between 1e-100 and 1, if autoscale works nice is not a problem for me but, there is a problem.
my values are between 1 and 2 and during the ploting the scale stay between 1e-100 and 1e20, So my curve is like a vertical line

=> how i can modify this? can we fix originals boundaries for this autoscaling?