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polar-area.html
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Created
Mon, Oct 21, 06:28
Size
3 KB
Mime Type
text/html
Expires
Wed, Oct 23, 06:28 (2 d)
Engine
blob
Format
Raw Data
Handle
21834127
Attached To
R2664 SHRINE MedCo Fork
polar-area.html
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<!doctype html>
<html>
<head>
<title>
Polar Area Chart
</title>
<script
src=
"../dist/Chart.bundle.js"
></script>
<script
src=
"http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"
></script>
<style>
canvas
{
-
moz
-
user
-
select
:
none
;
-
webkit
-
user
-
select
:
none
;
-
ms
-
user
-
select
:
none
;
}
</style>
</head>
<body>
<div
id=
"canvas-holder"
style=
"width:75%"
>
<canvas
id=
"chart-area"
></canvas>
</div>
<button
id=
"randomizeData"
>
Randomize Data
</button>
<button
id=
"addData"
>
Add Data
</button>
<button
id=
"removeData"
>
Remove Data
</button>
<script>
var
randomScalingFactor
=
function
()
{
return
Math
.
round
(
Math
.
random
()
*
100
);
};
var
randomColorFactor
=
function
()
{
return
Math
.
round
(
Math
.
random
()
*
255
);
};
var
randomColor
=
function
(
opacity
)
{
return
'rgba('
+
randomColorFactor
()
+
','
+
randomColorFactor
()
+
','
+
randomColorFactor
()
+
','
+
(
opacity
||
'.3'
)
+
')'
;
};
var
config
=
{
data
:
{
datasets
:
[{
data
:
[
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
(),
],
backgroundColor
:
[
"#F7464A"
,
"#46BFBD"
,
"#FDB45C"
,
"#949FB1"
,
"#4D5360"
,
],
label
:
'My dataset'
// for legend
}],
labels
:
[
"Red"
,
"Green"
,
"Yellow"
,
"Grey"
,
"Dark Grey"
]
},
options
:
{
responsive
:
true
,
legend
:
{
position
:
'top'
,
},
title
:
{
display
:
true
,
text
:
'Chart.js Polar Area Chart'
},
scale
:
{
ticks
:
{
beginAtZero
:
true
},
reverse
:
false
},
animation
:
{
animateRotate
:
false
,
animateScale
:
true
}
}
};
window
.
onload
=
function
()
{
var
ctx
=
document
.
getElementById
(
"chart-area"
);
window
.
myPolarArea
=
Chart
.
PolarArea
(
ctx
,
config
);
};
$
(
'#randomizeData'
).
click
(
function
()
{
$
.
each
(
config
.
data
.
datasets
,
function
(
i
,
piece
)
{
$
.
each
(
piece
.
data
,
function
(
j
,
value
)
{
config
.
data
.
datasets
[
i
].
data
[
j
]
=
randomScalingFactor
();
config
.
data
.
datasets
[
i
].
backgroundColor
[
j
]
=
randomColor
();
});
});
window
.
myPolarArea
.
update
();
});
$
(
'#addData'
).
click
(
function
()
{
if
(
config
.
data
.
datasets
.
length
>
0
)
{
config
.
data
.
labels
.
push
(
'dataset #'
+
config
.
data
.
labels
.
length
);
$
.
each
(
config
.
data
.
datasets
,
function
(
i
,
dataset
)
{
dataset
.
backgroundColor
.
push
(
randomColor
());
dataset
.
data
.
push
(
randomScalingFactor
());
});
window
.
myPolarArea
.
update
();
}
});
$
(
'#removeData'
).
click
(
function
()
{
config
.
data
.
labels
.
pop
();
// remove the label first
$
.
each
(
config
.
data
.
datasets
,
function
(
i
,
dataset
)
{
dataset
.
backgroundColor
.
pop
();
dataset
.
data
.
pop
();
});
window
.
myPolarArea
.
update
();
});
</script>
</body>
</html>
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