get axis min and max of qwtplot

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const QwtScaleDiv & QwtPlot::axisScaleDiv

(

int

axisId

)

const

Return the scale division of a specified axis.

axisScaleDiv(axisId).lowerBound(), axisScaleDiv(axisId).upperBound() are the current limits of the axis scale.

Parameters

axisId

Axis index

Returns

Scale division

See also

QwtScaleDiv, setAxisScaleDiv(), QwtScaleEngine::divideScale()