Pie Chart omits some labels

[Eric Pokriefke]

dojox.charting.plot2d.Pie offers a very useful option: 'labelStyle: "columns"'

However, if you use this mode instead of the default one, labels will be omitted, if the slice is too small.

dojox.charting.plot2d.Pie line: 395

labeledSlices.push({
	angle: labelAngle,
	left: Math.cos(labelAngle) < 0,
	theme: themes[i],
	index: i,
	omit: end - start < 0.001
});

If you look at my test page, you might think there are only 3 different slices, but there are 6! [www.teamspace.de/ts/test/pietest.html]

Pie charts become very unclear because of this.

[cjolif]

Some people might want this "feature" even if indeed this might be misleading. What I would propose is a new API on Pie that enable or disable this for both columns and default style labels. With a default value of showing all labels. That way it will be consistent between the two modes (columns & default) and user will be able to pick the choice they want (all labels or just labels with non small slices).

[cjolif]

adding omitLabels property.

[cjolif]

In [27005]:

adding omitLabels property to choose whether to omit labels on small pie or not. Fixes #12885. !strict.