1.首先在我們的plugin目錄下將本文件附件中的js檔案引入,這個元件是以angular工廠模式建立canvas物件,以angular指令控制dom
2.然後在html檔案中在需要畫圖的地方呼叫元件,以下為html的demo
<div
class
="test"
ng-controller
="testctrl"
>
<
circle-progress
config
="circleconfig"
>
circle-progress
>
div>
3.然後在controller.js邏輯層配置呼叫元件需要的引數,以下為demo
(functionfunction
($scope) }(
function
() )();
}]);
元件原始碼
/*** created by cloudsor
* date: 2019/4/09*/(
function
($interval);
//畫背景圓圈
circleprofactory.drawbackgroundcircle = function
();
//畫前景圓圈
circleprofactory.drawfrontcircle = function
(n)
this.ctx.strokestyle = this
.forecolor;
//用於繪製圓弧context.arc(x座標,y座標,半徑,起始角度,終止角度,順時針/逆時針)
if(this.iscounter&&this.start == 'bottom')
else
if(!this.iscounter&&this.start == 'top')
else
if(this.iscounter&&this.start == 'top')
else
if(!this.iscounter&&this.start == 'bottom')
this
.ctx.stroke();
this
.ctx.closepath();
this
.ctx.restore();
};//繪製百分比方法
circleprofactory.drawtext = function
(n)
//動態渲染方法
circleprofactory.animation = function
()
return
circleprofactory;
}])(circleprofactory,$document) ,
template: '',
restrict: 'e',
link:
function
(scope,ele,attr)
else
}circleprofactory.ele = ele['context'].firstelementchild;
circleprofactory.ctx = circleprofactory.ele.getcontext('2d');
circleprofactory.percent =scope.config.percent;
circleprofactory.bdgcolor =scope.config.bdgcolor;
circleprofactory.forecolor =scope.config.forecolor;
circleprofactory.center_x = scope.config.size/2;
circleprofactory.center_y = scope.config.size/2;
circleprofactory.speed = 0;
circleprofactory.rad = math.pi*2/100;
circleprofactory.isround =scope.config.isround;
circleprofactory.iscounter = scope.config.iscounter||true
; circleprofactory.start = scope.config.start || 'bottom';
drawframe();
} };
}])
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