Table of Contents

Table of Contents

Waiting Line

Waiting Line

Overview and Key Concepts

The Waiting Line object assists in modelling the behavior of people queuing.

Events

On Person Ready

The on person ready event fires when a person reaches the end of the line and is ready to leave.

It has the following parameters:

Event Parameter Type Explanation
Person Object The person who reached the end of the line.

On Entry

The on entry event will fire the object's on entry trigger. This event fires as soon as an item enters the object, before any other logic is executed.

It has the following parameters:

Event Parameter Type Explanation
Entering Item Object The flow item that entered the object.
Input Port int Unused

On Exit

The on exit event will fire the object's on exit trigger. This event fires as an item is leaving the object, before it has actually left the object. This means if you check the content of the object in the on exit trigger, the content will include the exiting item.

It has the following parameters:

Event Parameter Type Explanation
Exiting Item Object The flow item that is exiting the object.
Output Port int Unused

On Message

The on message event will fire the object's on message trigger. This event is fired when the object receives a message.

It has the following parameters:

Event Parameter Type Explanation
Sending Object Object The object that sent the message.
Message Param 1 Variant This is a parameter that was passed through the message and could be a number, string, treenode or array.
Message Param 2 Variant This is a parameter that was passed through the message and could be a number, string, treenode or array.
Message Param 3 Variant This is a parameter that was passed through the message and could be a number, string, treenode or array.

On Stop

This event fires when the object is stopped either through code using Object.stop() or by using a Time Table or MTBF/MTTR tool.

It has the following parameters:

Event Parameter Type Explanation
# Stop Requests int The number of stop requests the object has. This number includes the current stop request.
State int The state the object will go into it while stopped.
ID int The id or key for the stop request.
Priority double The priority of the stop request.
State Profile int The profile number of the new state. The default state profile is 0.

On Resume

This event fires when the object is resumed either through code using Object.resume() or by using a Time Table or MTBF/MTTR tool.

It has the following parameters:

Event Parameter Type Explanation
# Stop Requests int The number of stop requests the object has remaining.
ID int The id or key for the resume request.
State Profile int The profile number of the state that was used when the object was stopped. The default state profile is 0.

On Content Change

This event fires anytime the object's content changes. This occurs when a flow item is loaded or unloaded from the object.

This event has no parameters.

On Input Change

This event fires when a flow item is loaded into the object.

This event has no parameters.

On Output Change

This event fires when a flow item is unloaded from object.

This event has no parameters.

On Staytime Change

This event fires when a flow item is unloaded from the object, immediately after the On Output Change event.

This event has no parameters.

On State Change

This event fires when the object's state changes. This event allows you to listen to the object's state being changed to a specific state, or to track the state's the object is in.

It has the following parameters:

Event Parameter Type Explanation
State Profile Node treenode If the To State is in the default state profile, this parameter is NULL. Otherwise, this parameter is a reference to the state profile node (tracked variable) in the object's state_profiles attribute node.
To State int The state number the object will be set to.
From State int The state number the object was in before the new state is set.

On State Value Change

The on state value change event is associated with the tracked variable that stores the state statistics for the object. Listening to this event allows you to use the change rule. This event fires at the same time as the on state change event.

This event has one requirement, the state profile number. If using the default state profile, this number is 0.

On Reset

The on reset event is fired for each object when the model is reset.

This event has no parameters.

On Draw

The on draw event is fired each time the 3D view is repainted. This happens at different times depending on run speed and refresh rates. In order to ensure model repeatability, code used in the on draw trigger should not use the stochastics commands (distributions) that use FlexSim's random number generator.

It has the following parameters:

Event Parameter Type Explanation
View treenode The view the object is being drawn in. Having multiple 3D views open will cause the on draw event to be fired for each view.

States

Idle

The object is not performing any tasks.

Statistics

The waiting line uses the same statistics as a fixed resource. See Fixed Resource Concepts - Statistics for an explanation of these statistics.

Properties

The Waiting Line object has four tabs with various properties. The last three tabs are the standard tabs that are common to all objects. For more information about the properties on those tabs, see:

The WaitingLine tab defines the visuals and behavior of the line. The properties on this tab will be explained in more detail in the following sections.

Draw Floor

If checked a rectangular floor will be drawn between each point in the line with the texture specified here.

Width

The width of the drawn floor.

Width Repeat Distance

The distance once instance of the texture should be drawn in the width.

Length Repeat Distance

The distance once instance of the texture should be drawn in the length.

Color

The color that will be applied to the texture of the drawn floor.

Draw Stanchions

If checked, vertical rectangular images will be drawn to either side of the floor between each point in the line with the texture specified here.

Height

The height of the drawn stanchion images.

Repeat Distance

The distance once instance of the texture should be drawn in the length.

Color

The color that will be applied to the texture of the stanchions.

Gap Size

The distance each person should stand away from the person in front of them in line.

Single Entry Point

When checked, the line will behave like a line at an amusement park where you have to enter at the beginning and traverse the length of the line before reaching the end. If not checked, a person can walk in a straight line to the back of the line without following the layout of the line.