Javascript 如何将Kinteic.js中的以下代码转换为函数?
我有一个代码,它画一个圆角十六进制,当鼠标移到它上面和外面时,它会放大和缩小。如何使代码模块化和可重用,如何将其转化为函数?特别是十六进制绘图代码Javascript 如何将Kinteic.js中的以下代码转换为函数?,javascript,html,function,canvas,kineticjs,Javascript,Html,Function,Canvas,Kineticjs,我有一个代码,它画一个圆角十六进制,当鼠标移到它上面和外面时,它会放大和缩小。如何使代码模块化和可重用,如何将其转化为函数?特别是十六进制绘图代码 <script src="js/kinetic.min.js" charset="utf-8"></script> <script defer="defer" type="text/javascript"> function zoomHex() { }
<script src="js/kinetic.min.js" charset="utf-8"></script>
<script defer="defer" type="text/javascript">
function zoomHex() {
}
var stage = new Kinetic.Stage({
container: 'container',
width: 1024,
height: 800
});
var shapesLayer = new Kinetic.Layer();
var hex = new Kinetic.Shape({
x: 5,
y: 10,
fill: 'rgb(53, 74, 159)',
// a Kinetic.Canvas renderer is passed into the drawFunc function
drawFunc: function(canvas) {
var context = canvas.getContext();
context.beginPath();
context.moveTo(0.1, 51.9);
context.bezierCurveTo(0.1, 43.6, 4.6, 35.8, 11.9, 31.6);
context.lineTo(61.0, 3.3);
context.bezierCurveTo(68.2, -0.9, 77.2, -0.9, 84.4, 3.3);
context.lineTo(133.6, 31.6);
context.bezierCurveTo(140.8, 35.8, 145.3, 43.6, 145.3, 52.0);
context.lineTo(145.3, 108.7);
context.bezierCurveTo(145.3, 117.1, 140.8, 124.8, 133.6, 129.0);
context.lineTo(84.4, 157.4);
context.bezierCurveTo(77.2, 161.5, 68.2, 161.5, 61.0, 157.4);
context.lineTo(11.9, 129.0);
context.bezierCurveTo(4.6, 124.8, 0.1, 117.0, 0.1, 108.7);
context.lineTo(0.1, 51.9);
context.closePath();
canvas.fillStroke(this);
}
});
var zoomIn = new Kinetic.Animation(function(frame) {
var period = 2500;
var duration = 250;
zoomAmount = 1;
var scale =frame.time / period;
hex.setScale(frame.time / period + zoomAmount);
if(frame.time > duration) {
zoomIn.stop();
this.frame.time = 0;
}
}, shapesLayer);
var zoomOut = new Kinetic.Animation(function(frame) {
var period = 2500;
var duration = 250;
zoomAmount = 1;
hex.setScale(zoomAmount - frame.time / period + 0.102);
if(frame.time > duration) {
zoomOut.stop();
this.frame.time = 0;
}
}, shapesLayer);
hex.on('mouseover', function() {
zoomIn.start();
//zoomIn.stop();
});
hex.on('mouseleave', function() {
zoomOut.start();
//zoomOut.stop();
});
shapesLayer.add(hex);
stage.add(shapesLayer);
</script>
函数zoomHex(){
}
var阶段=新的动力学阶段({
容器:'容器',
宽度:1024,
身高:800
});
var shapesLayer=新的dynamic.Layer();
var hex=新的动力学形状({
x:5,
y:10,
填写:'rgb(53、74、159)',
//将动能.Canvas渲染器传递到drawFunc函数中
drawFunc:函数(画布){
var context=canvas.getContext();
context.beginPath();
上下文。移动到(0.1,51.9);
贝塞尔曲线图(0.1,43.6,4.6,35.8,11.9,31.6);
上下文。lineTo(61.0,3.3);
贝塞尔曲线图(68.2,-0.9,77.2,-0.9,84.4,3.3);
上下文。lineTo(133.6,31.6);
贝塞尔曲线图(140.8,35.8,145.3,43.6,145.3,52.0);
lineTo(145.3108.7);
贝塞尔曲线图(145.3117.1144.8124.8133.6129.0);
上下文。lineTo(84.4157.4);
贝塞尔曲线图(77.2161.5,68.2161.5,61.0157.4);
lineTo(11.9129.0);
贝塞尔曲线图(4.6124.8,0.1117.0,0.1108.7);
上下文。lineTo(0.1,51.9);
closePath();
canvas.fillStroke(这个);
}
});
var zoomIn=新的动能动画(函数(帧){
var周期=2500;
var持续时间=250;
zoomAmount=1;
var刻度=帧时间/周期;
十六进制设置刻度(帧时间/周期+缩放计数);
如果(帧时间>持续时间){
zoomIn.stop();
this.frame.time=0;
}
},造型层);
var zoomOut=新的动能.动画(函数(帧){
var周期=2500;
var持续时间=250;
zoomAmount=1;
十六进制设置刻度(zoomAmount-frame.time/period+0.102);
如果(帧时间>持续时间){
zoomOut.stop();
this.frame.time=0;
}
},造型层);
hex.on('mouseover',function(){
zoomIn.start();
//zoomIn.stop();
});
hex.on('mouseleave',function(){
zoomOut.start();
//zoomOut.stop();
});
shapesLayer.add(十六进制);
stage.add(shapesLayer);
您想使用KineticJS的扩展功能:
Kinetic.Util.extend(Kinetic.customShape,Kinetic.Shape)
例如:
(function() {
Kinetic.customHex = function(config) {
this._initHex(config);
};
Kinetic.MyCircle.prototype = {
_initHex: function(config) {
Kinetic.Shape.call(this, config);
},
drawFunc: function() {
},
customFunc : function() {
}
};
Kinetic.Util.extend(Kinetic.customHex, Kinetic.Shape);
})();
有关如何扩展
Kinetic.Shape
对象的示例,请参阅“直接搜索”和“向上搜索任何动力学形状”(矩形、圆形等)。要使用KineticJS的扩展功能:
Kinetic.Util.extend(Kinetic.customShape,Kinetic.Shape)
例如:
(function() {
Kinetic.customHex = function(config) {
this._initHex(config);
};
Kinetic.MyCircle.prototype = {
_initHex: function(config) {
Kinetic.Shape.call(this, config);
},
drawFunc: function() {
},
customFunc : function() {
}
};
Kinetic.Util.extend(Kinetic.customHex, Kinetic.Shape);
})();
有关如何扩展
dynamic.Shape
对象的示例,请参阅直接搜索任何动力学图形(rect、circle等)。您可以使用上下文轻松重用十六进制图形坐标。translate。
下面是一个小提琴的例子:
translate(x,y)将导致下一个图形开始,就像[x,y]是[0,0]坐标一样
这样你就不必调整你的十六进制坐标来在不同的位置使用它们
方法:
- 首先,使用context.save以未翻译状态保存上下文
- 然后,context.translate(165,10)将图形原点移动到[165,10]
- 然后画十六进制(使用相同的不变直线/曲线坐标)
- 最后,使用contex.restore将上下文返回到其未翻译状态
drawFunc: function(canvas) {
var context = canvas.getContext();
context.save();
context.translate(165,10);
context.beginPath();
context.moveTo(0.1, 51.9);
context.bezierCurveTo(0.1, 43.6, 4.6, 35.8, 11.9, 31.6);
context.lineTo(61.0, 3.3);
context.bezierCurveTo(68.2, -0.9, 77.2, -0.9, 84.4, 3.3);
context.lineTo(133.6, 31.6);
context.bezierCurveTo(140.8, 35.8, 145.3, 43.6, 145.3, 52.0);
context.lineTo(145.3, 108.7);
context.bezierCurveTo(145.3, 117.1, 140.8, 124.8, 133.6, 129.0);
context.lineTo(84.4, 157.4);
context.bezierCurveTo(77.2, 161.5, 68.2, 161.5, 61.0, 157.4);
context.lineTo(11.9, 129.0);
context.bezierCurveTo(4.6, 124.8, 0.1, 117.0, 0.1, 108.7);
context.lineTo(0.1, 51.9);
context.closePath();
canvas.fillStroke(this);
context.restore();
}
下面的代码将十六进制代码包装到模板函数中,这样您就可以重复调用该函数来创建所需数量的十六进制
缩放代码也封装在包装器函数中,因此所有的十六进制数都可以缩放
下面是代码和小提琴:
原型
#容器{
边框:实心1px#ccc;
边缘顶部:10px;
宽度:350px;
高度:400px;
}
$(函数(){
var阶段=新的动力学阶段({
容器:'容器',
宽度:350,
身高:400
});
var layer=新的动能层();
阶段。添加(层);
//使用函数创建多个十六进制
var-hexes=[];
六角推(makeHex(5,10,'rgb(53,74,159)');
推(makeHex(165,10,'skyblue'));
推(makeHex(5175,'gold');
hexes.push(makeHex(165175,'MediumAquamarine');
//做一个十六进制
函数makeHex(x,y,fill){
var hex=新的动力学形状({
x:0,,
y:0,
填充:填充,
//将动能.Canvas渲染器传递到drawFunc函数中
drawFunc:函数(画布){
var context=canvas.getContext();
context.save();
语境。翻译(x,y);
context.beginPath();
上下文。移动到(0.1,51.9);
贝塞尔曲线图(0.1,43.6,4.6,35.8,11.9,31.6);
上下文。lineTo(61.0,3.3);
贝塞尔曲线图(68.2,-0.9,77.2,-0.9,84.4,3.3);
上下文。lineTo(133.6,31.6);
贝塞尔曲线图(140.8,35.8,145.3,43.6,145.3,52.0);
lineTo(145.3108.7);
贝塞尔曲线图(145.3117.1144.8124.8133.6129.0);
上下文。lineTo(84.4157.4);
context.bezierCur