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<div id="app">
<bar-chart percent="{{barValue}}" foreground-color="#badaff" background-color="#bada55"></bar-chart><br>
Value: <input type="range" min="0" step="1" max="100" v-model="barValue"> {{barValue}}<br><br>
<!-- Just define the foreground color, background color, stroke-width and radius -->
<donut-chart percent="{{value}}" foreground-color="#badaff" background-color="#bada55" stroke-width="{{width}}" radius="{{radius}}"></donut-chart><br>
<!-- Fun tool -->
Value: <input type="range" min="0" step="1" max="100" v-model="value"> {{value}}<br>
Radius: <input type="range" min="0" step="1" max="100" v-model="radius"> {{radius}}<br>
Width: <input type="range" min="0" step="1" max="100" v-model="width"> {{width}}<br>
</div>
<script type="text/x-template" id="bar-template">
<div class="bar-outer" style="width: 100%; height: {{height}}; background-color: {{backgroundColor}};">
<div class="bar-inner" style="width: {{percent}}%; height: {{height}}; background-color: {{foregroundColor}}">
</div>
</script>
<script type="text/x-template" id="donut-template">
<svg width="200" height="200" version="1.1" xmlns="http://www.w3.org/2000/svg" style="border: 1px solid #000000;" viewBox="0 0 200 200">
<!-- Background circle -->
<path v-attr="d: dBg"
fill="transparent"
stroke="{{backgroundColor}}"
stroke-width="{{strokeWidth}}"/>
<!-- Move to start position, start drawing arc -->
<path v-attr="d: d"
fill="transparent"
stroke="{{foregroundColor}}"
stroke-width="{{strokeWidth}}"/>
</svg>
</script>
body {
background: #ffffff;
}
svg {
width: 300px;
height: 300px;
}
Vue.component('bar-chart', {
props: ['percent', 'foreground-color', 'background-color'],
template: '#bar-template',
replace: true,
data: function () {
return {
// default values
foregroundColor: "#badaff",
backgroundColor: "#bada55",
percent: 25,
height: '1em'
}
},
});
Vue.component('donut-chart', {
props: ['percent', 'foreground-color', 'background-color',
'stroke-width', 'radius'],
template: '#donut-template',
replace: true,
data: function () {
return {
// default values
foregroundColor: "#badaff",
backgroundColor: "#bada55",
radius: 85,
strokeWidth: 20,
percent: 25
}
},
computed: {
// If more than 50% filled we need to switch arc drawing mode from less than 180 deg to more than 180 deg
largeArc: function () {
return this.percent < 50 ? 0 : 1;
},
// Where to put x coordinate of center of circle
x: function () {
return 100;
},
// Where to put y coordinate of center of circle
y: function () {
return 100 - this.radius;
},
// Calculate X coordinate of end of arc (+ 100 to move it to middle of image)
// add some rounding error to make arc not disappear at 100%
endX: function () {
return -Math.sin(this.radians) * this.radius + 100 - 0.0001;
},
// Calculate Y coordinate of end of arc (+ 100 to move it to middle of image)
endY: function () {
return Math.cos(this.radians) * this.radius + 100;
},
// Calculate length of arc in radians
radians: function () {
var degrees = (this.percent/100)*360
var value = degrees - 180; // Turn the circle 180 degrees counter clockwise
return (value*Math.PI)/180;
},
// If we reach full circle we need to complete the circle, this ties into the rounding error in X coordinate above
z: function () {
return this.percent == 100 ? 'z' : '';
},
dBg: function () {
return "M "+this.x+" "+this.y+" A "+this.radius+" "+this.radius+" 0 1 1 "+(this.x-0.0001)+" "+this.y+" z";
},
d: function () {
return "M "+this.x+" "+this.y+" A "+this.radius+" "+this.radius+" 0 "+this.largeArc+" 1 "+this.endX+" "+this.endY+" "+this.z;
}
}
});
var vm = new Vue({
el: '#app',
data: {
// Bar
barValue: 25,
// Donut
value: 25,
radius: 85,
width: 20
}
});
Also see: Tab Triggers