3rd Party Software

[quote author="Franzk" date="1297181733"][quote author="SolarQuark" date="1297181527"]Isn't this Qt stuff nice?[/quote]Just in case this was a sneer at Qt, Qwt is not maintained by Nokia.

Anyway, you're welcome.[/quote]

Absolutely NOT!

I genuinely think this Qt stuff is amazing.
It is not that long ago that someone like me really had a choice of VB/Delphi/or trying to write some graphics using the windows api and c (Petzold?).
Life was, and still is, far too short.

I did not even know of the existence of Qt, wxWidgets, FLTK, GTK, FOX, et al, until I recently began to do some research into modern C/C++ development platforms and if it was possible to program for a 'modern' (is there ever such a thing?) OS.
And so, in trying to teach myself C++, I tripped across the above technologies and, having researched as much as was reasonable, or perhaps even unreasonable, I decided to learn C++/Qt in parallel.
I do not regret that decision - despite my slowness of mind - and I genuinely am stunned by the capabilities of Qt. I wish, I wish, I wish that the documentation for Qwt was half as good as that for Qt though.

Take care, and thank you again for your help.

Mike

Thank you Gerolf

You are right.. I thought that the lib file was an import library.

I also tried to create an import library for qwt but I only got a .dll because I don´t have a the headers files __declspec definitions (implicit use of .dll). Is there any way to create a .dll without changing the header files?

Thank you very much again!

All the best

Ricardo Sousa

Hi, Franzk:
Thanks a lot.

I will try it.

Yes, i also use this library with success. But i think the 'enumeration' feature is in a very alpha state.
Only with a dll i can run correctly this feature.

[quote author="LiamMaru" date="1293466689"]I've used QSerialDevice to great success for other serial port tasks, it may be worth a look.[/quote]

hi i think i works for me but
try to put the implement of the class constructor and other function in a cpp file not within the class
and put Q_OBJECT for the two classes

Thanks a lot I'll try and i'll report the result.

Hi,

I'm not an expert in this thing, but I think you should use "QNmeaPositionInfoSource":http://doc.qt.nokia.com/qtmobility-1.1.0-beta/qnmeapositioninfosource.html and use, as QIODevice, "QExtSerialPort":http://qextserialport.sourceforge.net/

Once I wrote a GPS application, but I parsed NMEA sentences by myself, cause at that time there was no QtMobility. QExtSerialPort works fine, as long as your GPS is seen on your desktop as a COM device (virtual or not).

Tony.

Thank you. This was also my first intention but I was not sure that it is the "Qt way" of doing things so your answers are very valuable feedback for me.

@kalle
I'm looking for a plotting library that can plot data interactively. Specifically, I wish to render 1D histogram like curves that are spline smoothed, allow overlay with seperate axes on the left and right. The plots need to be rendered as "filled" plots (i.e. color under the curve), but the fill area needs to be controllable by user interaction. Automatic scaling, labeling, legending, and coloring would also be nice. The qwt library almost delivers what I need. However, I find its interface non-intuitive and its 2D plot rendering leaves a lot of features out.

I looked at KD Chart, and it may be what I am looking for. Of course, I'm only interested in free, open-source solutions.