我有以下代码:
var text = new Kinetic.Text({
text: carNames,
fontFamily: 'Calibri',
fontSize: 17,
fill: 'black',
align: 'center'
});
text.toImage({
width: text.getWidth(),
height: text.getHeight(),
callback: function (img) {
var cachedText = new Kinetic.Image({
image: img,
x: 180,
y: 0
});
wedge.add(cachedText);
layer.draw();
}
});
生成的楔形和文本如下所示:
但我需要将文本置于楔形内部,如下所示:
有谁知道实现这个目标的方法?我已经尝试了几件事,但我无法像第二张图片那样对齐文本。
提前感谢您的麻烦。
答案 0 :(得分:2)
一种方法是将文本的偏移量与文本的rotationDeg结合使用:
演示:http://jsfiddle.net/m1erickson/mqsY3/
这是代码:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Prototype</title>
<script type="text/javascript" src="http://code.jquery.com/jquery.min.js"></script>
<script src="http://d3lp1msu2r81bx.cloudfront.net/kjs/js/lib/kinetic-v4.7.2.min.js"></script>
<style>
body{padding:20px;}
#container{
border:solid 1px #ccc;
margin-top: 10px;
width:350px;
height:350px;
}
</style>
<script>
$(function(){
var stage = new Kinetic.Stage({
container: 'container',
width: 350,
height: 350
});
var layer = new Kinetic.Layer();
stage.add(layer);
var cx=175;
var cy=175;
var wedgeRadius=120;
var accumAngle=0;
var center = new Kinetic.Circle({
x:cx,
y:cy,
radius:5,
fill: 'red'
});
layer.add(center);
for(var i=0;i<12;i++){
newTextWedge(30,"Element # "+i);
}
function newTextWedge(angle,text){
var wedge = new Kinetic.Wedge({
x: cx,
y: cy,
radius: wedgeRadius,
angleDeg: angle,
stroke: 'gray',
strokeWidth: 1,
rotationDeg:-accumAngle+angle/2
});
layer.add(wedge);
if(accumAngle>90 && accumAngle<270){
var offset=[wedgeRadius-10,7];
var textAngle=accumAngle-180;
}else{
var offset=[-50,7];
var textAngle=accumAngle;
}
var text = new Kinetic.Text({
x:cx,
y:cy,
text:text,
fill: 'red',
offset:offset,
rotationDeg:textAngle
});
layer.add(text);
layer.draw();
accumAngle+=angle;
}
}); // end $(function(){});
</script>
</head>
<body>
<div id="container"></div>
</body>
</html>