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This article introduces the relevant knowledge of "how to realize the Qt visualization large-screen electronic Kanban system". In the operation of the actual case, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

I. functional features

Using hierarchical design, the overall interface is divided into three levels, the first interface is the overall layout, the secondary interface is a single functional module, and the third interface is a single control.

Sub-controls include pie chart + circle chart + curve chart + column chart + horizontal column chart + horizontal column group chart + qualified rate control + percentage control + progress control + equipment status panel + table data + map control + video control and so on.

The secondary interface can be dragged and suspended freely, supporting minimization and maximization to turn off, in response to double-clicking the custom title bar.

The data source supports analog data (default), database acquisition, serial communication (to be customized), network communication (to be customized), network request, etc., and the collection interval of each sub-interface, that is, data refresh frequency, can be set freely.

Written in pure QWidget, test Qt4.6 to any version of Qt5.15, theoretically support other Qt versions, test win+linux+mac+uos+kylin and other systems with perfect results, and also support embedded linux such as raspberry pie, orange pie, Quanzhi, imx6 and so on.

At the same time, it integrates the custom control + qchart pie chart + echart map function.

Built-in multiple sets of color matching styles (purple, blue, dark blue, black), default purple, support any resolution.

You can set the title + target resolution + layout scheme to start immediate application.

You can set the main background color + panel color + crosshair cursor color.

Can set multiple curve colors, without setting colors, built-in 15 sets of beautiful colors can be applied randomly.

You can set the title block background color + text color.

You can set the curve chart background color + text color + grid color.

You can set normal color + warning color + alarm color + disable color + percentage progress color.

Various font sizes can be set separately, such as global + software name + title bar + sub-title bar + bold label and so on.

You can set the title bar height + heading height + row height.

The curve supports cursor + hover highlighted data points and display values, the bar chart supports the top (top + top + middle + bottom) to display data, all adaptive calculation positions.

The main interface directly right mouse button switch layout + color scheme + close open a secondary form.

Automatically memorize the size and position of all child windows and start the application immediately next time.

Dynamically load the layout scheme menu, you can dynamically create a new layout, restore the layout, save the layout, save the layout, etc., and the user can create any layout.

Secondary form, double-click to separate from the main form to float, you can freely resize. Double-click the title bar again to maximize, double-click again to restore, equivalent to the sub-module can also be full-screen display as a large screen, so that a large screen can expand multiple sub-large screens, zoom in to see the data details of the sub-module.

Each module can customize the acquisition speed, if it is a database acquisition will be automatically queued processing, and later can expand each sub-module independent database acquisition.

Provide the system settings window for the overall configuration parameter settings.

Provide exquisite and cool large-screen map module, including static picture + flicker effect + migration effect + world map + area map, etc., you can specify the longitude and latitude coordinates of the point, identify the click response, you can do map jump, etc., each point can have different colors and tips, the function is awesome!

In addition to providing a large screen system, each module has made an independent module example interface, each module can be used independently, and the controls used in it have also made a separate control sample interface to facilitate learning how to use each control. Really thoughtful!

Super detailed development and user manual, including detailed database description, module control diagram, control control diagram, project structure code description, usage and so on!

Second, the effect picture

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