yZoneColor(threshold, belowColor, aboveColor[, mainAxis ])

Create a y-zone color. A y-zone will change from one color to another depending on a threshold value on the y-axis.

For example, if a y-zone color is used as the fill color in an area layer, the area will switch from one color to another when its value is higher than a certain value on the y-axis.

The two colors used in a y-zone color can be other dynamic colors. You may create y-zone colors with more than 2 zones by cascading multiple y-zone colors.

Argument	Default	Description
threshold	(Mandatory)	The y value serving as the threshold for switching between two colors.
belowColor	(Mandatory)	The color to use when the y-axis value of the pixel is smaller than the threshold.
aboveColor	(Mandatory)	The color to use when the y-axis value of the pixel is greater than the threshold.
mainAxis	true (non-zero)	A true (non-zero) value means the primary y-axis is used to define the y-zone color. A false (zero) value means the secondary y-axis is used to define the y-zone color.

None