I just followed the examples in qwt disto.
Thr pinting is quite good.
However, when I try to export an svg file, I get also negative values inside the figures.
I mean: my plot data have negative values on the y axis, but when I plot, I fix the value of the axis to be positive. So on screen, I get only positive values.
The ps printing is ok. When I export the svg file, I get also the negative values, like in this figure.
Bookmarks