ChartViewer.getValueAtViewPort

ChartDirector 7.0 (Java Edition)

Usage

public double getValueAtViewPort(String id, double vpCoor [, boolean isLogScale ])

Description

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

Please refer to ChartViewer.setFullRange on how to define a data scale.

This method always returns a numeric value. If the axis scale is a date/time scale, and you are expecting a java.util.Date data type, please use Chart.NTime to convert the number to the java.util.Date data type.

Arguments

Argument	Default	Description
id	(Mandatory)	The name of the data scale.
vpCoor	(Mandatory)	The viewport coordinate.
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 value of the specified data scale at the viewport coordinate.