This change adds an additional check for whether the parent element
is `null` or `undefined` in `$.color.extract`. This can happen when
working with elements that have not yet been added to the DOM under
`<body>`.
Consider the following example pie chart.
var elm = $("<div />")
.css({
width: "240px"
, height: "320px"
})
var data = [
{label: "One", data: "33"}
, {label: "Two", data: "33"}
, {label: "Three", data: "33"}
]
var opts = {
legend: {
show: true
}
, series: {
pie: {
show: true
}
}
}
$.plot(elm, data, opts)
elm.appendTo($("body"))
When flot inserts each legend row, it tries to use the same color as
the corresponding graph part, unless it was explicitly specified in
the options. However, in this example, `$.color.extract` runs into
an unexpected `null` reference because `<body>` is not an ancestor
of `elm`. Specifically, a `TypeError: Cannot read property
'nodeName' of undefined` would be thrown.
The pie plugin was a little too clever in its use of closures. In
processDatapoints it set canvas, target, and options for use in other
functions. Since options was not declared this meant that it became
global. Pages containing multiple pie plots therefore saw a range of
weird effects resulting from earlier plots receiving some of the options
set by later ones. Resolves#1128, resolves#1073, resolves#1055.
If an explicit numeric offset was provided, we should not override it.
The clipping is only meant to apply to the case where the center is
moved to make room for the legend in 'auto' mode, anyway.
When series.points.show is false, currently a ring appears on highlight
around where the point would have been. Instead, display the point on
highlight.
The autoscale check was too broad; it included the case where autoscale
was undefined. This resulted in axes not expanding correctly when
coordinates at the end of a series had null x or y values. Fixed by
narrowing the check to !== false; resolves#1095.
This is up to 2x faster and appears to work around issues in Chrome's
canvas implementation that sometimes result in bars not being filled.
Resolves#915.
Mike Połtyn
David Schnur
Benjamin Gram
Amey Sakhadeo
Nick Schonning
Luis Silva
sgissinger
execjosh
Craig Oldford
Thodoris Greasidis
Brian Peiris
Eric Byers
Trask Stalnaker