WebChartViewer.getValueAtViewPort

ChartDirector 7.0 (ASP/COM/VB Edition)

Usage

getValueAtViewPort(id, vpCoor [, isLogScale ])

Description

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

Please refer to WebChartViewer.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 Date data type, please use ChartDirector.API.NTime to convert the number to the Date data type.

Arguments

Argument	Default	Description
id	(Mandatory)	The name of the data scale.
vpCoor	(Mandatory)	The viewport coordinate.
isLogScale	false (zero)	true (non-zero) if the conversion is based on a logarithmic scale. false (zero) if the conversion is based on a non-logarithmic scale.

Return Value

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