qt3.3 qwt 画曲线

Qt绘图、Qt绘制曲线第三方插件 

GraphPak  

KD Chart   

Qwt           

linux 下Qt 3安装qwt插件
版本qwt-4.2.0.tar.bz2
解压之后按其中的INSTALL文件安装
#Builds for Qt 3.x need qmake, that is official part of Qt 3.x.
qmake qwt.pro
make
The designer plugin is available for Qt > 3.x only. You can build and
install it with(这个东西编出来在qwt-4.2.0/designer/plugins/designer里生成libqwtplugin.so):

cd designer
qmake qwtplugin.pro
make
make install(这个命令把libqwtplugin.so这个插件库安装在QTDIR/plugins/designer/里,等designer运行的时候就会自动加载qwt了)

If you like to build the examples:
cd examples
qmake examples.pro
make

If you like to run the examples, don't forget to install the qwt libraries
or set the LD_LIBRARY_PATH to the lib directory of your local build.

qwt doesn't distribute binary unix packages. qwt.spec is a template
spec file for building rpm packages. Read the comments at the beginning
of qwt.pro how to use it.

一般说来,只要LD_LIBRARY_PATH路径设得对,就没问题

在FC4下 Qt 3.3在 /usr/lib/qt-3.3/ 目录中
为了方便,可以在$QTDIR/bin中建立一个bash文件,起动designer

#!/bin/bash
export QTDIR=/usr/lib/qt-3.3
export LD_LIBRARY_PATH=$(QTDIR)/lib:$(QTDIR)/plugins/designer:/Software/temp/qwt-4.2.0/lib

./designer &

source 它就可以了

上面的文章摘自：http://my.opera.com/kanzaki_v/blog/show.dml/282064