JsChartViewer.getViewPortAtValue

ChartDirector 7.1 (.NET Edition)

Usage

getViewPortAtValue(id, value [, isLogScale ])

Description

Converts a value of the specified data scale to a viewport coordinate.

Please refer to WebChartViewer.setFullRange or RazorChartViewer.setFullRange on how to define a data scale.

This method only accepts numeric values as input. If the axis scale is a date/time scale, and you are using a DateTime value, please use Chart.CTime to convert it to a number.

Arguments

Argument	Default	Description
id	(Mandatory)	The name of the data scale.
value	(Mandatory)	The value to be converted.
isLogScale	false	true if the conversion is based on a logarithmic scale. false if the conversion is based on a non-logarithmic scale.

Return Value

The viewport coordinate at the value of the specified data scale.