5. Object Transparency

	Transparency overview
	Transparency configuration
	Transparency configuration and runtime example

Transparency Overview

An object can become more or less transparent during runtime, based on a specified expression value.

Select the object whose transparency you want to change.

Example

A kiln will have text display SLOW START UP as it starts up and fade to invisible when the temperature reaches 45.

The same kiln will have a DANGER sign slowly become opaque as the temperature goes from 130 through 150.

Open the objects Properties dialog box.
Configure the transparency.

Transparency Configuration

Select Transparency in the Properties dialog box.

Transparency options are as follows.

A	Expression
B	Expr. min/max
C	Min/max value

A	Expression

A point ID or expression that will determine the object transparency percent within the entered minimum and maximum values.

	Opens the Expression Editor.
	Opens a Popup menu.

Expr. min/max

Min

Minimum value of the point ID or expression.

The object will display at the percent value in the left Min/Max value field when the expression value is equal to or less than the entered value.
As the value increases, the object display will become more opaque or transparent, depending on the Min/Max value field entries.

Max

Maximum value of the Point ID or expression.

The object will display at the percent value in the right Min/Max value field when the expression value is equal to or more than the entered value.
As the value decreases, the object display will become more opaque or transparent, depending on the Min/Max value field entries.

Note: If the Expression field contains a single point ID with no operations performed on it and the point has Display Limits defined, you may leave the Expr. Min/Max fields blank. CimView will use the Display Limits configured for the point ID during runtime.

C	Min/max value
	Left field	The value entered determines the object's transparency when the expression value is equal or less than the entered minimum expression value.
	Right field	The value entered determines the object's transparency when the expression value is equal or more than the entered maximum eexpression value.

Transparency Configuration and Runtime Example

A CimView screen will report when a kiln is starting up and when it exceeds a minimum temperature.

Text reporting the startup will slowly fade off the screen.

A danger sign will slowly become more visible.

Both are based on values of the same point: HEAT301.

Configuration

A	The start up message HEAT301 transparency entries are as follows.
	Field	Left	Right
	Expr. min/max	0	45
	Min/max value	100	0
B	The danger sign HEAT301 transparency entries are as follows.
	Field	Left	Right
	Expr. min/max	130	150
	Min/max value	0	100

Runtime Performance

During runtime the startup text and danger sign display as follows.

Temp.	Startup Text	Danger Sign
0	100% Visible	Invisible

25	50% Visible	Invisible

100	Invisible	Invisible

140	Invisible	50% Visible

150	Invisible	100% Visible

More information

Runtime movement and animation