Rasterview data entry edge?

[Mr_Cloud]

Hello All,

I'm trying to find out if there is a way to have a border of thickness maybe 1 or 2 pixels wide between data points in raster mode. This is a rough sketch of what I mean:

No edge:
http://s21.postimg.org/68rhlmrzr/nopixeledge.png


With edge:
http://s21.postimg.org/xuu96bbcn/pixeledge.png


Is it possible?


Thanks

[Uwe]

Not sure if it is really a spectrogram, what you want to display - but what you can do is to add a grid item on top of it.
You would have to overload QwtPlotGrid::updateScaleDiv(), where you have to replace the values for the ticks with the positions of the edges for the given ranges.

Uwe