Qt support the issue of on the high-resolution screen, curve of discontinuity-CodePudding

Qt set up to support high resolution, the use of 2 k screen

 
# if (QT_VERSION & gt; ,9,0=QT_VERSION_CHECK (5)) 
QApplication: : setAttribute (Qt: : AA_EnableHighDpiScaling); 
# endif 

QApplication a (arg c, argv);

Program is to use QWT drawing curve shapes, open the Settings above, after enlarged, curve changed short line, discontinuous,

The problem how to return a responsibility?

CodePudding user response:

Qwt themselves don't know don't support High - DPI, feeling the artists, Qwt some wind restoring ancient ways, in Qt Charts give it a try?

CodePudding user response:

reference 1st floor 丁劲犇 response:

don't know the Qwt itself does not support High DPI, feeling the artists, Qwt some wind restoring ancient ways, in Qt Charts give it a try?

QtCharts and QCustomPlot are commercial charge, only Qwt free

And Qwt performance and memory footprint are all better than both of them

CodePudding user response:

QtCharts already open source ~ ~ ~

CodePudding user response:

reference 丁劲犇 reply: 3/f

QtCharts already open source ~ ~ ~

The current QtCharts is part of the official Qt release!

CodePudding user response:

reference 4 floor 丁劲犇 response:

Quote: reference 丁劲犇 reply: 3/f
QtCharts already open source ~ ~ ~

The current QtCharts is part of the official Qt release!

Qt commercial or these Charts is a choice, if you are free to use, your project must also follow the GPL
Official Qt distribution there are several module is this permission form

CodePudding user response:

reference 5 floor mideum reply:

Quote: refer to 4th floor 丁劲犇 response:

Quote: refer to the third floor 丁劲犇 response:
QtCharts already open source ~ ~ ~

The current QtCharts is part of the official Qt release!

Qt commercial or these Charts is a choice, if you are free to use, your project must also follow the GPL
Official Qt distribution there are several module is this permission form

Follow the GPL is open source,,,

CodePudding user response:

reference at the 6th floor response:

Quote: refer to the 5 floor mideum response:

Quote: refer to 4th floor 丁劲犇 response:

Quote: refer to the third floor 丁劲犇 response:
QtCharts already open source ~ ~ ~

The current QtCharts is part of the official Qt release!

Qt commercial or these Charts is a choice, if you are free to use, your project must also follow the GPL
Official Qt distribution there are several module is this permission form

Follow the GPL is open source,,,

In theory, use the Qwt, is because of the GPL, so be open source, but unless you do very well-known software, otherwise, does not seem to someone, or, the display part made a separate client open source calculate,

Recommend a zhihu https://www.zhihu.com/question/28292322

CodePudding user response:

However, you're not modify Qwt or QtCharts, just want to use, so doesn't matter.