AutoJs源码-旋转的小白

/* 软件作者：https://xuhss.com/oxox/pro */ /** * 作者: 家 * QQ: 203118908 * 功能: canvas的旋转 */ 'ui'; var marginSize = '10' var myMargin = marginSize + ' ' + marginSize + ' ' + marginSize + ' ' + marginSize // <button id='button' >button</button> ui.layout( <vertical> <frame margin= '{{myMargin}}' > <canvas id='board'></canvas> </frame> </vertical> ) importClass(java.io.File); importClass(java.io.FileFilter); importClass(android.graphics.Path); importClass(android.graphics.RectF); importClass(android.graphics.Rect); importClass(android.graphics.Paint); importClass(android.graphics.BitmapFactory); importClass(android.graphics.Bitmap); importClass(android.graphics.Matrix); importClass(android.graphics.Color); importClass(android.graphics.ColorMatrix); importClass(android.graphics.ColorFilter); var path = new Path(); var myPaint = new Paint(); var matrix = new Matrix(); myPaint.setStrokeWidth(2); myPaint.setTextAlign(Paint.Align.CENTER); myPaint.setColor(-28707) // myPaint.setColor(-65536) // myPaint.setColor(13823224) myPaint.setStyle(Paint.Style.FILL); // myPaint.setStyle(Paint.Style.STROKE); var bitmap = android.graphics.Bitmap.createBitmap(1080, 1920, android.graphics.Bitmap.Config.ARGB_8888); var mcanvas = new Canvas(bitmap); var 弧度360=function(){ var 角度=0 return function(){ if(角度>360){角度=0} 角度=角度+10 return 角度; } }() view = ui.board var rect = new Rect; view.getBoundsOnScreen(rect) left=rect.left top=rect.top right=rect.right bottom=rect.bottom centerx = rect.centerX() centery = rect.centerY() w=view.getWidth() h=view.getHeight() log(centerx,centery,w, h) 黑洞圆的半径=50 var 半边宽度=w/2 ui.board.on("draw", function (canvas) { canvas.drawARGB(255, 127, 127, 127); // canvas.translate(centerx,centery) var r=弧度360() // log(r) canvas.rotate(r,centerx,centery) canvas.drawBitmap(bitmap, 0, 0, myPaint); }); // path.moveTo(500,300); // path.lineTo(378,230); // mcanvas.drawPath(path, myPaint); ui.post( function () { threads.start(function () { asd(mcanvas, myPaint, path); }); } ) function asd(myCanvas, myPaint, path) { 画黑洞(myCanvas, myPaint) } function 画黑洞(myCanvas, myPaint){ // 中间黑,啥也不画 function 画点(x,y,r){ var r=r || 6 myPaint.setColor(rndColor()); myCanvas.drawCircle(x,y, r, myPaint) } view = ui.board var rect = new Rect; view.getBoundsOnScreen(rect) left=rect.left top=rect.top right=rect.right bottom=rect.bottom centerx = rect.centerX() centery = rect.centerY() w=view.getWidth() h=view.getHeight() log(centerx,centery,w, h) 黑洞圆的半径=50 var 半边宽度=w/2 myPaint.setStyle(Paint.Style.STROKE); myCanvas.drawCircle(centerx,centery, 半边宽度, myPaint) myPaint.setStyle(Paint.Style.FILL); 根号2=1.4142 圆内正方形边长=根号2*半边宽度 圆内正方形左上角的坐标=[centerx-圆内正方形边长/2,centery-圆内正方形边长/2] 圆内正方形右下角的坐标=[centerx+圆内正方形边长/2,centery+圆内正方形边长/2] var 随机出来的坐标集合=在圆内正方形里面随机生成指定数量的坐标(300) for(var i=0;i<随机出来的坐标集合.length;i++){ var x=随机出来的坐标集合[i][0] var y=随机出来的坐标集合[i][1] 画点(x,y) } // 画点(centerx,centery,黑洞圆的半径) myPaint.setColor(-10); myCanvas.drawCircle(centerx,centery,黑洞圆的半径, myPaint) } function rndBoolean(){ var r=(Math.random()>0.495) return r } function 在圆内正方形里面随机生成指定数量的坐标(n){ var xMin=圆内正方形左上角的坐标[0] var xMax=圆内正方形右下角的坐标[0] var yMin=圆内正方形左上角的坐标[1] var yMax=圆内正方形右下角的坐标[1] var xyArr=[] for(var i=0;i<n;i++){ var x=rndNum(xMin, xMax) var y=rndNum(yMin, yMax) xyArr.push([x,y]) } return xyArr } function rndColor() { return colors.rgb(random(0, 255), random(0, 255), random(0, 255)) } function rndNum(min, max) { return Math.floor(Math.random() * (max - min + 1) + min); }