ZoomCharts Documentation

Whether to allow skipping some labels if there isn't enough space to draw any labels at all

Whether to draw overlapping value labels or not

Whether overlapping labels can be drawn in a stack instead if overlap is disallowed

Prepare custom content to display in value label along with numeric value. If this callback is not defined, then floating value is formatted with two digits after the decimal point and integer values are formatted without decimal digits. If this callback returns null or undefined for the given value, it won't be created. Note that null values are never passed to the callback. Usage example:

contentsFunction: function(value) { return value.toFixed(2) + "$"; }

Parameters

Return value

Whether to show series data labels.

The font size will be used as defined in series.valueLabel.style. However, if the available space is too narrow, font size will be gradually reduced to the minimum font size. If the minimum font size still does not fit, the values won't be displayed.

Note that this value must match the units that is being used in the style.textStyle.font setting. For example, if the font is specified as 2em Arial then this should be adjusted to, for example, 0.5, since the default value is tailored for font sizes in pixels.

Value label position in perspective to the series data point. Note that in all of the inside options automatically reduce the font size (based on minFontSize setting) in situations when the height of the column or line area does not provide enough room for full-size labels.

• outside - label will be located above (outside) data point for positive values and below the data point for negative.
• outsideTop - label will be located above (outside) data point
• outsideBottom - label will be located below (outside) data point
• aboveValue - label will be located above the data point (outside for positive values and inside for negative).
• value - label will be placed over the center of the data point.
• belowValue - label will be located below data point.
• insideTopAuto - acts as insideTop if there is enough space in the series area and outside if there is not.
• insideTop - label will be located inside the series area at the upper edge for positive and bottom edge for negative values.
• insideCenter - label will be located on the center of the series area.
• insideBase - label will be located inside the series area at the bottom edge for positive and upper edge for negative values.

Whether to skip drawing labels for null values

Whether to skip drawing labels for zero values

View section details

Data label text style.

Advanced: Skip the contents function when calculating font width reduction. Less accurate, but can improve performance is using an expensive contentsFunction.

Specifies if the value label render the stacked value (the sum of all values below it) or just the individual value of the particular series.

Default value null means that the stacked value is used unless the stack type is set to based.

Value label horizontal position in perspective to the series data point.

• center - label will be located on the center of the series area.
• insideRight - label will be located inside the series area, aligned to the right.
• right - label will be located on the border of the series area, aligned to the right.
• centerRight - label will be located to the right of the midpoint.
• outsideRight - label will be placed outside the series area, aligned to the right.
• insideLeft - label will be located inside the series area, aligned to the left.
• left - label will be located on the border of the series area, aligned to the left.
• centerLeft - label will be located to the left of the midpoint.
• outsideLeft - label will be placed outside the series area, aligned to the left.