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preface Learning notes of "advanced VTK graphics and image development Zhang Xiaodong Luo Huoling". Learning materials VTK8.2.0+QT5+VS2015 x86/x64 compiled third-party library to test DEMO: https://download.csdn.net/download/qq_37373742/83350761?spm=1001.2014.3001.5503 VTK official website learning address: https://vtk.org/doc/nigh ...

1, Introduction to Qt custom title bar The title bar of QWidget and its subclass form components is controlled by the operating system, that is, the interface style of the title bar is the same as the theme style of the operating system. In engineering practice, developers need to define it by themselves to beautify the application interface. ...

1, User defined interface introduction UI design refers to the overall design of human-computer interaction, operation logic and beautiful interface of software. Excellent UI design not only makes the software personalized and tasteful, but also makes the operation of the software comfortable, simple and free, which fully reflects the position ...

1, Introduction to QtDBus QtDBus is a Unix only library that uses D-Bus protocol for inter process communication. It is the encapsulation and implementation of the underlying API of D-Bus. QtDBus module provides an interface extended by Qt signal slot mechanism. To use the QtDBus module, you need to add the following code to the code: #inclu ...

Based on QT4 Version 8.6 1, Principle of signal slot mechanism 1. Introduction to signal slot Signal slot is an implementation of observer mode, and its characteristics are as follows: A. A signal is an event that can be observed, or at least a notification that an event has occurred; B. A slot is an observer, which is usually a function c ...

Foundation type Because Qt is a C + + framework, all syntax and data types in C + + are supported in Qt, but Qt also defines some of its own data types (mostly aliases of C + + data types). Let's introduce these basic data types QT basic data types are defined in #include < qtglobal > Type namenotesremarksqint8signed charSigned 8-bit d ...

Source of this tutorial The tutorial takes the model of automobile fuel efficiency as an example, with the number of cylinders, displacement, horsepower and weight as variables Linear regression mathematical theory I learned before get data dataset_path = keras.utils.get_file("auto-mpg.data", "http://archive.ics.uci.edu/ml/machine-learning-d ...

1, Event mechanism Events are sent by the system or QT platform itself at different times. When the user presses the mouse, taps the keyboard, or the window needs to be redrawn, a corresponding event will be issued. Some events are issued in response to user operations, such as keyboard events; Other events are automatically issued by the syst ...

1, QtQuick model view Foundation Model view is a technology that separates data from display. QtQuick provides a series of predefined models and views. 1,Repeater The most basic way to separate data from the presentation layer in QtQuick is to use the repeater element. The repeater element can be used to display the data of an array and can ...

1, Introduction to JSON 1. Introduction to JSON JSON(JavaScript Object Notation) is a lightweight data exchange format based on a subset of JavaScript (Standard ECMA-262 3rd Edition - December 1999). JSON adopts a text format that is completely independent of the language and uses the habit of C-like language family (including C, C + +, c#, J ...