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different-point-sizes.html
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Created
Mon, Oct 21, 09:28
Size
5 KB
Mime Type
text/html
Expires
Wed, Oct 23, 09:28 (2 d)
Engine
blob
Format
Raw Data
Handle
21837267
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R2664 SHRINE MedCo Fork
different-point-sizes.html
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<!doctype html>
<html>
<head>
<title>
Line 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
style=
"width:75%;"
>
<canvas
id=
"canvas"
></canvas>
</div>
<br>
<br>
<button
id=
"randomizeData"
>
Randomize Data
</button>
<button
id=
"addData"
>
Add Data
</button>
<button
id=
"removeData"
>
Remove Data
</button>
<script>
var
MONTHS
=
[
"January"
,
"February"
,
"March"
,
"April"
,
"May"
,
"June"
,
"July"
,
"August"
,
"September"
,
"October"
,
"November"
,
"December"
];
var
randomScalingFactor
=
function
()
{
return
Math
.
round
(
Math
.
random
()
*
100
*
(
Math
.
random
()
>
0.5
?
-
1
:
1
));
};
var
randomColorFactor
=
function
()
{
return
Math
.
round
(
Math
.
random
()
*
255
);
};
var
randomColor
=
function
(
opacity
)
{
return
'rgba('
+
randomColorFactor
()
+
','
+
randomColorFactor
()
+
','
+
randomColorFactor
()
+
','
+
(
opacity
||
'.3'
)
+
')'
;
};
var
config
=
{
type
:
'line'
,
data
:
{
labels
:
[
"January"
,
"February"
,
"March"
,
"April"
,
"May"
,
"June"
,
"July"
],
datasets
:
[{
label
:
"dataset - big points"
,
data
:
[
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
()],
fill
:
false
,
borderDash
:
[
5
,
5
],
pointRadius
:
15
,
pointHoverRadius
:
10
,
},
{
label
:
"dataset - individual point sizes"
,
data
:
[
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
()],
fill
:
false
,
borderDash
:
[
5
,
5
],
pointRadius
:
[
2
,
4
,
6
,
18
,
0
,
12
,
20
],
},
{
label
:
"dataset - large pointHoverRadius"
,
data
:
[
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
()],
fill
:
false
,
pointHoverRadius
:
30
,
},
{
label
:
"dataset - large pointHitRadius"
,
data
:
[
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
(),
randomScalingFactor
()],
fill
:
false
,
pointHitRadius
:
20
,
}]
},
options
:
{
responsive
:
true
,
legend
:
{
position
:
'bottom'
,
},
hover
:
{
mode
:
'label'
},
scales
:
{
xAxes
:
[{
display
:
true
,
scaleLabel
:
{
display
:
true
,
labelString
:
'Month'
}
}],
yAxes
:
[{
display
:
true
,
scaleLabel
:
{
display
:
true
,
labelString
:
'Value'
}
}]
},
title
:
{
display
:
true
,
text
:
'Chart.js Line Chart - Different point sizes'
}
}
};
$
.
each
(
config
.
data
.
datasets
,
function
(
i
,
dataset
)
{
var
background
=
randomColor
(
0.5
);
dataset
.
borderColor
=
background
;
dataset
.
backgroundColor
=
background
;
dataset
.
pointBorderColor
=
background
;
dataset
.
pointBackgroundColor
=
background
;
dataset
.
pointBorderWidth
=
1
;
});
window
.
onload
=
function
()
{
var
ctx
=
document
.
getElementById
(
"canvas"
).
getContext
(
"2d"
);
window
.
myLine
=
new
Chart
(
ctx
,
config
);
};
$
(
'#randomizeData'
).
click
(
function
()
{
$
.
each
(
config
.
data
.
datasets
,
function
(
i
,
dataset
)
{
dataset
.
data
=
dataset
.
data
.
map
(
function
()
{
return
randomScalingFactor
();
});
});
window
.
myLine
.
update
();
});
$
(
'#addData'
).
click
(
function
()
{
if
(
config
.
data
.
datasets
.
length
>
0
)
{
var
month
=
MONTHS
[
config
.
data
.
labels
.
length
%
MONTHS
.
length
];
config
.
data
.
labels
.
push
(
month
);
$
.
each
(
config
.
data
.
datasets
,
function
(
i
,
dataset
)
{
dataset
.
data
.
push
(
randomScalingFactor
());
if
(
Array
.
isArray
(
dataset
.
pointRadius
))
{
dataset
.
pointRadius
.
push
(
Math
.
random
()
*
30
);
}
});
window
.
myLine
.
update
();
}
});
$
(
'#removeData'
).
click
(
function
()
{
config
.
data
.
labels
.
splice
(
-
1
,
1
);
// remove the label first
config
.
data
.
datasets
.
forEach
(
function
(
dataset
,
datasetIndex
)
{
dataset
.
data
.
pop
();
if
(
Array
.
isArray
(
dataset
.
pointRadius
))
{
dataset
.
pointRadius
.
pop
();
}
});
window
.
myLine
.
update
();
});
</script>
</body>
</html>
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