背景连线动画
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6 changed files with 482 additions and 1 deletions
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eclipse.preferences.version=1
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eclipse.preferences.version=1
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encoding//Demo/AutoRestart.py=utf-8
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encoding//Demo/AutoRestart.py=utf-8
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encoding//Demo/CircleLine.py=utf-8
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encoding//Demo/EmbedWindow.py=utf-8
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encoding//Demo/EmbedWindow.py=utf-8
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encoding//Demo/FacePoints.py=utf-8
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encoding//Demo/FacePoints.py=utf-8
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encoding//Demo/FollowWindow.py=utf-8
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encoding//Demo/FollowWindow.py=utf-8
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@ -20,6 +21,7 @@ encoding//QChart/LineChart.py=utf-8
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encoding//QFont/AwesomeFont.py=utf-8
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encoding//QFont/AwesomeFont.py=utf-8
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encoding//QFont/Lib/FontAwesome.py=utf-8
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encoding//QFont/Lib/FontAwesome.py=utf-8
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encoding//QGraphicsDropShadowEffect/ShadowEffect.py=utf-8
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encoding//QGraphicsDropShadowEffect/ShadowEffect.py=utf-8
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encoding//QGraphicsView/WorldMap.py=utf-8
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encoding//QListView/CustomWidgetSortItem.py=utf-8
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encoding//QListView/CustomWidgetSortItem.py=utf-8
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encoding//QListView/SortItemByRole.py=utf-8
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encoding//QListView/SortItemByRole.py=utf-8
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encoding//QMessageBox/CustomColorIcon.py=utf-8
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encoding//QMessageBox/CustomColorIcon.py=utf-8
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Demo/CircleLine.py
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Demo/CircleLine.py
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Created on 2019年3月19日
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@author: Irony
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@site: https://pyqt5.com https://github.com/892768447
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@email: 892768447@qq.com
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@file: CircleLine
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@description:
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"""
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from math import floor, pi, cos, sin
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from random import random, randint
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from time import time
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from PyQt5.QtCore import QTimer, Qt
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from PyQt5.QtGui import QColor, QPainter, QPainterPath, QPen
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from PyQt5.QtWidgets import QWidget
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__Author__ = 'Irony'
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__Copyright__ = 'Copyright (c) 2019'
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# 最小和最大半径、半径阈值和填充圆的百分比
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radMin = 10
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radMax = 80
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filledCircle = 30 # 填充圆的百分比
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concentricCircle = 60 # 同心圆百分比
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radThreshold = 25 # IFF special, over this radius concentric, otherwise filled
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# 最小和最大移动速度
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speedMin = 0.3
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speedMax = 0.6
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# 每个圆和模糊效果的最大透明度
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maxOpacity = 0.6
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colors = [
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QColor(52, 168, 83),
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QColor(117, 95, 147),
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QColor(199, 108, 23),
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QColor(194, 62, 55),
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QColor(0, 172, 212),
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QColor(120, 120, 120)
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]
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circleBorder = 10
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backgroundLine = colors[0]
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backgroundColor = QColor(38, 43, 46)
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backgroundMlt = 0.85
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lineBorder = 2.5
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# 最重要的是:包含它们的整个圆和数组的数目
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maxCircles = 8
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points = []
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# 实验变量
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circleExp = 1
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circleExpMax = 1.003
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circleExpMin = 0.997
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circleExpSp = 0.00004
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circlePulse = False
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# 生成随机整数 a<=x<=b
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def randint(a, b):
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return floor(random() * (b - a + 1) + a)
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# 生成随机小数
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def randRange(a, b):
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return random() * (b - a) + a
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# 生成接近a的随机小数
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def hyperRange(a, b):
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return random() * random() * random() * (b - a) + a
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class Circle:
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def __init__(self, background, width, height):
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self.background = background
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self.x = randRange(-width / 2, width / 2)
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self.y = randRange(-height / 2, height / 2)
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self.radius = hyperRange(radMin, radMax)
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self.filled = (False if randint(
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0, 100) > concentricCircle else 'full') if self.radius < radThreshold else (
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False if randint(0, 100) > concentricCircle else 'concentric')
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self.color = colors[randint(0, len(colors) - 1)]
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self.borderColor = colors[randint(0, len(colors) - 1)]
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self.opacity = 0.05
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self.speed = randRange(speedMin, speedMax) # * (radMin / self.radius)
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self.speedAngle = random() * 2 * pi
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self.speedx = cos(self.speedAngle) * self.speed
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self.speedy = sin(self.speedAngle) * self.speed
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spacex = abs((self.x - (-1 if self.speedx < 0 else 1) *
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(width / 2 + self.radius)) / self.speedx)
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spacey = abs((self.y - (-1 if self.speedy < 0 else 1) *
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(height / 2 + self.radius)) / self.speedy)
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self.ttl = min(spacex, spacey)
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class CircleLineWindow(QWidget):
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def __init__(self, *args, **kwargs):
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super(CircleLineWindow, self).__init__(*args, **kwargs)
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geometry = QApplication.instance().desktop().availableGeometry()
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self.screenWidth = geometry.width()
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self.screenHeight = geometry.height()
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self._canDraw = True
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self._firstDraw = True
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self._timer = QTimer(self, timeout=self.update)
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def init(self):
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points.clear()
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# 链接的最小距离
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self.linkDist = min(self.screenWidth, self.screenHeight) / 2.4
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# 初始化点
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for _ in range(maxCircles * 3):
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points.append(Circle('', self.screenWidth, self.screenHeight))
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self.update()
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def resizeEvent(self, event):
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super(CircleLineWindow, self).resizeEvent(event)
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self.init()
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def showEvent(self, event):
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super(CircleLineWindow, self).showEvent(event)
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self._canDraw = True
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def hideEvent(self, event):
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super(CircleLineWindow, self).hideEvent(event)
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# 窗口最小化要停止绘制, 减少cpu占用
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self._canDraw = False
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def paintEvent(self, event):
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super(CircleLineWindow, self).paintEvent(event)
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if not self._canDraw:
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return
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painter = QPainter(self)
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painter.setRenderHint(QPainter.Antialiasing)
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painter.setRenderHint(QPainter.SmoothPixmapTransform)
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painter.save()
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painter.fillRect(self.rect(), backgroundColor)
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painter.restore()
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self.draw(painter)
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def draw(self, painter):
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if circlePulse:
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if circleExp < circleExpMin or circleExp > circleExpMax:
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circleExpSp *= -1
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circleExp += circleExpSp
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painter.translate(self.screenWidth / 2, self.screenHeight / 2)
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if self._firstDraw:
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t = time()
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self.renderPoints(painter, points)
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if self._firstDraw:
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self._firstDraw = False
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# 此处有个比例关系用于设置timer的时间,如果初始窗口很小,没有比例会导致动画很快
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t = (time() - t) * 1000
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# 比例最大不能超过1920/800
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t = int(min(2.4, self.screenHeight / self.height()) * t) - 1
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print('start timer(%d msec)' % t)
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# 开启定时器
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self._timer.start(t)
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def drawCircle(self, painter, circle):
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# circle.radius *= circleExp
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if circle.background:
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circle.radius *= circleExp
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else:
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circle.radius /= circleExp
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radius = circle.radius
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r = radius * circleExp
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# 边框颜色设置透明度
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c = QColor(circle.borderColor)
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c.setAlphaF(circle.opacity)
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painter.save()
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if circle.filled == 'full':
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# 设置背景刷
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painter.setBrush(c)
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painter.setPen(Qt.NoPen)
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else:
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# 设置画笔
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painter.setPen(
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QPen(c, max(1, circleBorder * (radMin - circle.radius) / (radMin - radMax))))
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# 画实心圆或者圆圈
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painter.drawEllipse(circle.x - r, circle.y - r, 2 * r, 2 * r)
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painter.restore()
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if circle.filled == 'concentric':
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r = radius / 2
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# 画圆圈
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painter.save()
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painter.setBrush(Qt.NoBrush)
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painter.setPen(
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QPen(c, max(1, circleBorder * (radMin - circle.radius) / (radMin - radMax))))
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painter.drawEllipse(circle.x - r, circle.y - r, 2 * r, 2 * r)
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painter.restore()
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circle.x += circle.speedx
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circle.y += circle.speedy
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if (circle.opacity < maxOpacity):
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circle.opacity += 0.01
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circle.ttl -= 1
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def renderPoints(self, painter, circles):
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for i, circle in enumerate(circles):
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if circle.ttl < -20:
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# 重新初始化一个
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circle = Circle('', self.screenWidth, self.screenHeight)
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circles[i] = circle
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self.drawCircle(painter, circle)
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circles_len = len(circles)
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for i in range(circles_len - 1):
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for j in range(i + 1, circles_len):
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deltax = circles[i].x - circles[j].x
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deltay = circles[i].y - circles[j].y
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dist = pow(pow(deltax, 2) + pow(deltay, 2), 0.5)
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# if the circles are overlapping, no laser connecting them
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if dist <= circles[i].radius + circles[j].radius:
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continue
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# otherwise we connect them only if the dist is < linkDist
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if dist < self.linkDist:
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xi = (1 if circles[i].x < circles[j].x else -
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1) * abs(circles[i].radius * deltax / dist)
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yi = (1 if circles[i].y < circles[j].y else -
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1) * abs(circles[i].radius * deltay / dist)
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xj = (-1 if circles[i].x < circles[j].x else 1) * \
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abs(circles[j].radius * deltax / dist)
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yj = (-1 if circles[i].y < circles[j].y else 1) * \
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abs(circles[j].radius * deltay / dist)
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path = QPainterPath()
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path.moveTo(circles[i].x + xi, circles[i].y + yi)
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path.lineTo(circles[j].x + xj, circles[j].y + yj)
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# samecolor = circles[i].color == circles[j].color
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c = QColor(circles[i].borderColor)
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c.setAlphaF(min(circles[i].opacity, circles[j].opacity)
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* ((self.linkDist - dist) / self.linkDist))
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painter.setPen(QPen(c, (
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lineBorder * backgroundMlt if circles[i].background else lineBorder) * (
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(self.linkDist - dist) / self.linkDist)))
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painter.drawPath(path)
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if __name__ == '__main__':
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import sys
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from PyQt5.QtWidgets import QApplication
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app = QApplication(sys.argv)
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w = CircleLineWindow()
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w.resize(800, 600)
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w.show()
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sys.exit(app.exec_())
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Demo/Data/背景连线动画.html
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Demo/Data/背景连线动画.html
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>背景连线动画</title>
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<style>
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html,
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body {
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overflow: hidden;
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background: #262b2e
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}
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#canvas {
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z-index: 1;
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}
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</style>
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</head>
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<body>
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<div id="wrapper">
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<canvas id="canvas" width="1920px" height="1080px"></canvas>
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</div>
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<script>
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// min and max radius, radius threshold and percentage of filled circles
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var radMin = 10,
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radMax = 80,
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filledCircle = 30, //percentage of filled circles
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concentricCircle = 60, //percentage of concentric circles
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radThreshold = 25; //IFF special, over this radius concentric, otherwise filled
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//min and max speed to move
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var speedMin = 0.3,
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speedMax = 0.6;
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//max reachable opacity for every circle and blur effect
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var maxOpacity = 0.6;
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//default palette choice
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var colors = ['52,168,83', '117,95,147', '199,108,23', '194,62,55', '0,172,212', '120,120,120'],
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circleBorder = 10,
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backgroundLine = colors[0];
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var backgroundMlt = 0.85;
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//min distance for links
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var linkDist = Math.min(canvas.width, canvas.height) / 2.4,
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lineBorder = 2.5;
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//most importantly: number of overall circles and arrays containing them
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var maxCircles = 8;
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var points = [];
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//experimental vars
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var circleExp = 1,
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circleExpMax = 1.003,
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circleExpMin = 0.997,
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circleExpSp = 0.00004,
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circlePulse = false;
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var ctxfr = null;
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//circle class
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function Circle(background) {
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this.x = randRange(-canvas.width / 2, canvas.width / 2);
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this.y = randRange(-canvas.height / 2, canvas.height / 2);
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this.radius = hyperRange(radMin, radMax);
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this.filled = this.radius < radThreshold ? (randint(0, 100) > filledCircle ? false : 'full') : (randint(0, 100) > concentricCircle ? false : 'concentric');
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this.color = colors[randint(0, colors.length - 1)];
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this.borderColor = colors[randint(0, colors.length - 1)];
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this.opacity = 0.05;
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this.speed = randRange(speedMin, speedMax); // * (radMin / this.radius);
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this.speedAngle = Math.random() * 2 * Math.PI;
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this.speedx = Math.cos(this.speedAngle) * this.speed;
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this.speedy = Math.sin(this.speedAngle) * this.speed;
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var spacex = Math.abs((this.x - (this.speedx < 0 ? -1 : 1) * (canvas.width / 2 + this.radius)) / this.speedx),
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spacey = Math.abs((this.y - (this.speedy < 0 ? -1 : 1) * (canvas.height / 2 + this.radius)) / this.speedy);
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this.ttl = Math.min(spacex, spacey);
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}
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||||||
|
Circle.prototype.init = function() {
|
||||||
|
Circle.call(this, this.background);
|
||||||
|
};
|
||||||
|
|
||||||
|
//support functions
|
||||||
|
//generate random int a<=x<=b
|
||||||
|
function randint(a, b) {
|
||||||
|
return Math.floor(Math.random() * (b - a + 1) + a);
|
||||||
|
}
|
||||||
|
//generate random float
|
||||||
|
function randRange(a, b) {
|
||||||
|
return Math.random() * (b - a) + a;
|
||||||
|
}
|
||||||
|
//generate random float more likely to be close to a
|
||||||
|
function hyperRange(a, b) {
|
||||||
|
return Math.random() * Math.random() * Math.random() * (b - a) + a;
|
||||||
|
}
|
||||||
|
|
||||||
|
//rendering function
|
||||||
|
function drawCircle(ctx, circle) {
|
||||||
|
//circle.radius *= circleExp;
|
||||||
|
var radius = circle.background ? circle.radius *= circleExp : circle.radius /= circleExp;
|
||||||
|
ctx.beginPath();
|
||||||
|
ctx.arc(circle.x, circle.y, radius * circleExp, 0, 2 * Math.PI, false);
|
||||||
|
ctx.lineWidth = Math.max(1, circleBorder * (radMin - circle.radius) / (radMin - radMax));
|
||||||
|
ctx.strokeStyle = ['rgba(', circle.borderColor, ',', circle.opacity, ')'].join('');
|
||||||
|
if (circle.filled === 'full') {
|
||||||
|
ctx.fillStyle = ['rgba(', circle.borderColor, ',', circle.opacity, ')'].join('');
|
||||||
|
ctx.fill();
|
||||||
|
ctx.lineWidth=0;
|
||||||
|
ctx.strokeStyle = ['rgba(', circle.borderColor, ',', 0, ')'].join('');
|
||||||
|
}
|
||||||
|
ctx.stroke();
|
||||||
|
if (circle.filled === 'concentric') {
|
||||||
|
ctx.beginPath();
|
||||||
|
ctx.arc(circle.x, circle.y, radius / 2, 0, 2 * Math.PI, false);
|
||||||
|
ctx.lineWidth = Math.max(1, circleBorder * (radMin - circle.radius) / (radMin - radMax));
|
||||||
|
ctx.strokeStyle = ['rgba(', circle.color, ',', circle.opacity, ')'].join('');
|
||||||
|
ctx.stroke();
|
||||||
|
}
|
||||||
|
circle.x += circle.speedx;
|
||||||
|
circle.y += circle.speedy;
|
||||||
|
if (circle.opacity < maxOpacity) circle.opacity += 0.01;
|
||||||
|
circle.ttl--;
|
||||||
|
}
|
||||||
|
|
||||||
|
//initializing function
|
||||||
|
function init() {
|
||||||
|
|
||||||
|
var canvas1 = document.getElementById('canvas');
|
||||||
|
canvas1.width = document.documentElement.clientWidth;
|
||||||
|
canvas1.height = document.documentElement.clientHeight;
|
||||||
|
ctxfr = document.getElementById('canvas').getContext('2d');
|
||||||
|
ctxfr.globalCompositeOperation = 'destination-over';
|
||||||
|
//populating the screen
|
||||||
|
for (var i = 0; i < maxCircles * 2; i++) points.push(new Circle(false));
|
||||||
|
|
||||||
|
window.requestAnimationFrame(draw);
|
||||||
|
}
|
||||||
|
|
||||||
|
//rendering function
|
||||||
|
function draw() {
|
||||||
|
if (circlePulse) {
|
||||||
|
if (circleExp < circleExpMin || circleExp > circleExpMax) circleExpSp *= -1;
|
||||||
|
circleExp += circleExpSp;
|
||||||
|
}
|
||||||
|
|
||||||
|
ctxfr.clearRect(0, 0, canvas.width, canvas.height); // clear canvas
|
||||||
|
ctxfr.save();
|
||||||
|
ctxfr.translate(canvas.width / 2, canvas.height / 2);
|
||||||
|
|
||||||
|
|
||||||
|
//function to render each single circle, its connections and to manage its out of boundaries replacement
|
||||||
|
function renderPoints(ctx, arr) {
|
||||||
|
for (var i = 0; i < arr.length; i++) {
|
||||||
|
var circle = arr[i];
|
||||||
|
//checking if out of boundaries
|
||||||
|
if (circle.ttl<0) {}
|
||||||
|
var xEscape = canvas.width / 2 + circle.radius,
|
||||||
|
yEscape = canvas.height / 2 + circle.radius;
|
||||||
|
if (circle.ttl < -20) arr[i].init(arr[i].background);
|
||||||
|
//if (Math.abs(circle.y) > yEscape || Math.abs(circle.x) > xEscape) arr[i].init(arr[i].background);
|
||||||
|
drawCircle(ctx, circle);
|
||||||
|
}
|
||||||
|
for (var i = 0; i < arr.length - 1; i++) {
|
||||||
|
for (var j = i + 1; j < arr.length; j++) {
|
||||||
|
var deltax = arr[i].x - arr[j].x;
|
||||||
|
var deltay = arr[i].y - arr[j].y;
|
||||||
|
var dist = Math.pow(Math.pow(deltax, 2) + Math.pow(deltay, 2), 0.5);
|
||||||
|
//if the circles are overlapping, no laser connecting them
|
||||||
|
if (dist <= arr[i].radius + arr[j].radius) continue;
|
||||||
|
//otherwise we connect them only if the dist is < linkDist
|
||||||
|
if (dist < linkDist) {
|
||||||
|
var xi = (arr[i].x < arr[j].x ? 1 : -1) * Math.abs(arr[i].radius * deltax / dist);
|
||||||
|
var yi = (arr[i].y < arr[j].y ? 1 : -1) * Math.abs(arr[i].radius * deltay / dist);
|
||||||
|
var xj = (arr[i].x < arr[j].x ? -1 : 1) * Math.abs(arr[j].radius * deltax / dist);
|
||||||
|
var yj = (arr[i].y < arr[j].y ? -1 : 1) * Math.abs(arr[j].radius * deltay / dist);
|
||||||
|
ctx.beginPath();
|
||||||
|
ctx.moveTo(arr[i].x + xi, arr[i].y + yi);
|
||||||
|
ctx.lineTo(arr[j].x + xj, arr[j].y + yj);
|
||||||
|
var samecolor = arr[i].color == arr[j].color;
|
||||||
|
ctx.strokeStyle = ["rgba(", arr[i].borderColor, ",", Math.min(arr[i].opacity, arr[j].opacity) * ((linkDist - dist) / linkDist), ")"].join("");
|
||||||
|
ctx.lineWidth = (arr[i].background ? lineBorder * backgroundMlt : lineBorder) * ((linkDist - dist) / linkDist); //*((linkDist-dist)/linkDist);
|
||||||
|
ctx.stroke();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
var startTime = Date.now();
|
||||||
|
renderPoints(ctxfr, points);
|
||||||
|
|
||||||
|
deltaT = Date.now() - startTime;
|
||||||
|
ctxfr.restore();
|
||||||
|
|
||||||
|
window.requestAnimationFrame(draw);
|
||||||
|
}
|
||||||
|
|
||||||
|
init();
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
/*Credits and aknowledgements:
|
||||||
|
Original Idea and Design by Luca Luzzatti
|
||||||
|
|
||||||
|
Optimizing tips from Benjamin K?stner
|
||||||
|
General tips from Salvatore Previti*/
|
||||||
|
</script>
|
||||||
|
</body>
|
||||||
|
</html>
|
|
@ -16,6 +16,7 @@
|
||||||
- [验证码控件](#14、验证码控件)
|
- [验证码控件](#14、验证码控件)
|
||||||
- [人脸特征点](#15、人脸特征点)
|
- [人脸特征点](#15、人脸特征点)
|
||||||
- [使用Threading](#16、使用Threading)
|
- [使用Threading](#16、使用Threading)
|
||||||
|
- [背景连线动画](#17、背景连线动画)
|
||||||
|
|
||||||
## 1、重启窗口Widget
|
## 1、重启窗口Widget
|
||||||
[运行 RestartWindow.py](RestartWindow.py)
|
[运行 RestartWindow.py](RestartWindow.py)
|
||||||
|
@ -162,4 +163,11 @@ PyQt 结合 Opencv 进行人脸检测;
|
||||||
|
|
||||||
在PyQt中使用Theading线程
|
在PyQt中使用Theading线程
|
||||||
|
|
||||||
![QtThreading](ScreenShot/QtThreading.gif)
|
![QtThreading](ScreenShot/QtThreading.gif)
|
||||||
|
|
||||||
|
## 17、背景连线动画
|
||||||
|
[运行 CircleLine.py](CircleLine.py)
|
||||||
|
|
||||||
|
主要参考 [背景连线动画.html](Data/背景连线动画.html)
|
||||||
|
|
||||||
|
![CircleLine](ScreenShot/CircleLine.gif)
|
BIN
Demo/ScreenShot/CircleLine.gif
Normal file
BIN
Demo/ScreenShot/CircleLine.gif
Normal file
Binary file not shown.
After Width: | Height: | Size: 778 KiB |
|
@ -171,6 +171,7 @@ https://pyqt5.com 社区是专门针对PyQt5学习和提升开设的博客网站
|
||||||
- [验证码控件](Demo/VerificationCode.py)
|
- [验证码控件](Demo/VerificationCode.py)
|
||||||
- [人脸特征点](Demo/FacePoints.py)
|
- [人脸特征点](Demo/FacePoints.py)
|
||||||
- [使用Threading](Demo/QtThreading.py)
|
- [使用Threading](Demo/QtThreading.py)
|
||||||
|
- [背景连线动画](Demo/CircleLine.py)
|
||||||
|
|
||||||
# QQ群
|
# QQ群
|
||||||
|
|
||||||
|
|
Loading…
Reference in a new issue