Sounds like a problem in Qwt to me, to be honest. I think what you were doing in the constructor should work. The only thing I can think about, is that perhaps (speculation) Qwt does not accept setting up axis before you actually told it about the kind of data is need to plot (and what axis there are in that)?
Yes, the Qt libs are precompiled. To use boost together with those you will have to compile it with the same settings. It will not help to change 10.5 to 10.7 in the mkspecs, as Qt is still built with the old settings!
You have two options here:
build boost with the same settings as Qt
build Qt manually with the same settings as you build boost
I personally would go with the first option and rebuild Qt.
Good question. I guess this is tricky to do with the standard Qt slider widget. What you might considder (if possible for you), is to use Qwt instead. It provides more options for its slider widget, including having custom scales. It even supports logartitmic scales.
Yes. Typically add the user you run your application as to the uucp group or maybe enable filesystem ACLs and set a suitable ACL on your serial device.
"Follow this link":http://developer.qt.nokia.com/faq/answer/do_you_provide_a_tool_for_creating_graphs
Also if you click the qwt tag on the right you will find more usefull info.
On the qwt website there is an example using logaritmic scale if I remember well.
You are, unfortunately, very right. This library of mine is still very static and the redesign is slow-going (work responsibilities are picking up towards the end of the year). With regards to interaction, have a look at the Qt Chart example if you haven't done so yet:
http://doc.qt.nokia.com/stable/itemviews-chart.html
Enjoy and good luck!
"this":http://qwt.sourceforge.net/ is the website you need.
both ways are possible. "This topic":http://developer.qt.nokia.com/forums/viewthread/7597/P15 might help you.
By the way other interesting topics on devnet can be found using the qwt tag on the right of this site.