Kivy es una herramienta GUI independiente de la plataforma en Python. Como se puede ejecutar en Android, IOS, Linux y Windows, etc. Básicamente se usa para desarrollar la aplicación de Android, pero eso no significa que no se pueda usar en aplicaciones de escritorio.
Lienzo de línea:
Línea es una instrucción de lienzo de vértice. Permite dibujar líneas a través de puntos. Este código muestra cómo usar/dibujar el dibujo de línea extendida, como círculos, elipses, rectángulos y Bézier, etc.
Basic Approach: 1) import kivy 2) import kivy App 3) import Gridlayout 4) import widget 5) set minimum version(optional) 6) Create as much as widget class as needed 7) create the App class 8) return the widget/layout etc class 9) Run an instance of the class
Implementación de Enfoque:
# Main.py
Python3
# kivy Lines Demo # import kivy module import kivy # base Class of your App inherits from the App class. # app:always refers to the instance of your application from kivy.app import App # The GridLayout arranges children in a matrix. # It takes the available space and # divides it into columns and rows, # then adds widgets to the resulting “cells”. from kivy.uix.gridlayout import GridLayout # Widgets are elements of # a graphical user interface that # form part of the User Experience. from kivy.uix.widget import Widget ############################################## # Classes form Different types of line as widgets class LineEllipse1(Widget): pass class LineEllipse2(Widget): pass class LineEllipse3(Widget): pass class LineCircle1(Widget): pass class LineCircle2(Widget): pass class LineCircle3(Widget): pass class LineCircle4(Widget): pass class LineRectangle(Widget): pass class LineBezier(Widget): pass # Create the App class class LineApp(App): def build(self): # Assign the number of column, spacing and padding root = GridLayout(cols = 3, padding = 50, spacing = 100) # Adding the widgets root.add_widget(LineEllipse1()) root.add_widget(LineEllipse2()) root.add_widget(LineEllipse3()) root.add_widget(LineCircle1()) root.add_widget(LineCircle2()) root.add_widget(LineCircle3()) root.add_widget(LineCircle4()) root.add_widget(LineRectangle()) root.add_widget(LineBezier()) return root # Run the App class if __name__ == '__main__': LineApp().run()
Archivo Line.kv:
Python3
# Line.kv file of the code # Creating Different types of Lines(or shapes through line) ########################################### # Row 1: # Ellipse(1st row 1st element) <LineEllipse1>: # Creating Canvas canvas: Color: rgba: 1, .1, .1, .9 # Ellipse Creation Line: width: 2. ellipse: (self.x, self.y, self.width, self.height) # Label the figure Label: center: root.center text: 'Ellipse' ############################################ # Ellipse from 90 to 180((1st row 2nd element)) <LineEllipse2>: canvas: Color: rgba: 1, .1, .1, .9 Line: width: 2. ellipse: (self.x, self.y, self.width, self.height, 90, 180) Label: center: root.center text: 'Ellipse from 90 to 180' ############################################ # Ellipse from 90 to 720, 10 segments(1st row 3rd element) <LineEllipse3>: canvas: Color: rgba: 1, .1, .1, .9 Line: width: 2. ellipse: (self.x, self.y, self.width, self.height, 90, 720, 10) Label: center: root.center text: 'Ellipse from 90 to 720, 10 segments' halign: 'center' ############################################ # Circle(2nd row 1st element) <LineCircle1>: canvas: Color: rgba: .1, 1, .1, .9 Line: width: 2. circle: (self.center_x, self.center_y, min(self.width, self.height) / 2) Label: center: root.center text: 'Circle' ############################################ # Circle from 90 to 180(2nd row 2nd element) <LineCircle2>: canvas: Color: rgba: .1, 1, .1, .9 Line: width: 2. circle: (self.center_x, self.center_y, min(self.width, self.height) / 2, 90, 180) Label: center: root.center text: 'Circle from 90 to 180' ############################################ # Circle from 90 to 180, 10 segments(1st row 3rd element) <LineCircle3>: canvas: Color: rgba: .1, 1, .1, .9 Line: width: 2. circle: (self.center_x, self.center_y, min(self.width, self.height) / 2, 90, 180, 10) Label: center: root.center text: 'Circle from 90 to 180, 10 segments' halign: 'center' ############################################ # Circle from 0 to 360 (3rd row 1st element) <LineCircle4>: canvas: Color: rgba: .1, 1, .1, .9 Line: width: 2. circle: (self.center_x, self.center_y, min(self.width, self.height) / 2, 0, 360) Label: center: root.center text: 'Circle from 0 to 360' halign: 'center' ############################################ # Rectangle (3rd row 2nd element) <LineRectangle>: canvas: Color: rgba: .1, .1, 1, .9 Line: width: 2. rectangle: (self.x, self.y, self.width, self.height) Label: center: root.center text: 'Rectangle' ############################################ # Bezier (3rd row 3rd element) <LineBezier>: canvas: Color: rgba: .1, .1, 1, .9 Line: width: 2. bezier: (self.x, self.y, self.center_x - 40, self.y + 100, self.center_x + 40, self.y - 100, self.right, self.y) Label: center: root.center text: 'Bezier'
Producción:
Publicación traducida automáticamente
Artículo escrito por YashKhandelwal8 y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA