LinkVisualizerBase

simple module

This is a base module for link visualizer simple modules. It keeps track of active links in a network. A link between two network node is considered active if a packet is sent recently between the corresponding layers. Active links are not displayed by default, see the module parameters for how to enable the visualization. The actual visualization of active links is done in derived modules.

This module subscribes for signals at the provided subscription module. When determining active links, it only considers packets matched by the provided filters. The filters use the format of cMatchExpression with the packet name as the default attribute.

The format string can contain the following directives:

%n packet name
%c packet class

Inheritance diagram

The following diagram shows inheritance relationships for this type. Unresolved types are missing from the diagram.

Known subclasses

Name	Type	Description
DataLinkVisualizerBase	simple module	This is a base module for data link layer link visualizer simple modules. It keeps track of active links in a network. A link between two network node is considered active if a packet is sent recently between their link layers. Active links are not displayed by default, see the module parameters for how to enable the visualization. The actual visualization of active links is done in derived modules.
PhysicalLinkVisualizerBase	simple module	This is a base module for physical layer link visualizer simple modules. It keeps track of active links in a network. A link between two network node is considered active if a packet is sent recently between their physical layers. Active links are not displayed by default, see the module parameters for how to enable the visualization. The actual visualization of active links is done in derived modules.

Extends

Name	Type	Description
VisualizerBase	simple module	This is a base module for visualizer simple modules. It simply provides the visualization target module for derived modules.

Parameters

Name	Type	Default value	Description
visualizerTargetModule	string	""	module path relative to the visualizer where the visualization should appear in the user interface, root module by default
tags	string	""	tag added to each visualization for disambiguation in the runtime environment
subscriptionModule	string	""	module where the visualizer subscribes for signals, root module by default
displayLinks	bool	false	display arrows for active links, disabled by default
nodeFilter	string	"*"	which nodes are considered, matches all nodes by default
interfaceFilter	string	"*"	which interfaces are considered, matches all interfaces by default
packetFilter	string	"*"	which packets are considered, matches all packets by default
lineColor	string	"black"	link arrow color, black by default
lineStyle	string	"solid"	link arrow style (solid, dashed, dotted)
lineWidth	double	3	link arrow width
lineShift	double	16	line shift to avoid overlapping arrows
lineShiftMode	string	"normal"	determines how overlapping arrows are shifted, possible values are: none, normal, x, y, z; optional prefix + or -
lineContactSpacing	double	3	spacing between arrow end and submodule icon
lineContactMode	string	"rectangular"	determines how arrows are clipped at the submodules
labelFormat	string	"%n"	determines what link data is displayed
labelFont	string	", 8px"	label font, automatic by default
labelColor	string	"black"	label color, black by default
fadeOutMode	string	"realTime"	specifies how inactive links fade out
fadeOutTime	double	1s	how quickly inactive links fade away, 1 second by default
fadeOutAnimationSpeed	double	0	animation speed while there are active links, value must be in the range (0, +inf)

Properties

Name	Value	Description
class	LinkVisualizerBase
display	i=block/app_s

Source code

//
// This is a base module for link visualizer simple modules. It keeps track of
// active links in a network. A link between two network node is considered
// active if a packet is sent recently between the corresponding layers. Active
// links are not displayed by default, see the module parameters for how to
// enable the visualization. The actual visualization of active links is done
// in derived modules.
//
// This module subscribes for signals at the provided subscription module. When
// determining active links, it only considers packets matched by the provided
// filters. The filters use the format of cMatchExpression with the packet name
// as the default attribute.
//
// The format string can contain the following directives:
//  - %n packet name
//  - %c packet class
//
// @see ~PhysicalLinkVisualizerBase, ~DataLinkVisualizerBase, ~VisualizerBase
//
simple LinkVisualizerBase extends VisualizerBase
{
    parameters:
        string subscriptionModule = default("<root>"); // module where the visualizer subscribes for signals, root module by default

        bool displayLinks = default(false); // display arrows for active links, disabled by default

        string nodeFilter @mutable = default("*"); // which nodes are considered, matches all nodes by default
        string interfaceFilter @mutable = default("*"); // which interfaces are considered, matches all interfaces by default
        string packetFilter @mutable = default("*"); // which packets are considered, matches all packets by default

        string lineColor = default("black"); // link arrow color, black by default
        string lineStyle = default("solid"); // link arrow style (solid, dashed, dotted)
        double lineWidth = default(3); // link arrow width

        double lineShift = default(16); // line shift to avoid overlapping arrows
        string lineShiftMode = default("normal"); // determines how overlapping arrows are shifted, possible values are: none, normal, x, y, z; optional prefix + or -

        double lineContactSpacing = default(3); // spacing between arrow end and submodule icon
        string lineContactMode @enum("circular","rectangular") = default("rectangular"); // determines how arrows are clipped at the submodules

        string labelFormat = default("%n"); // determines what link data is displayed
        string labelFont = default("<default>, 8px"); // label font, automatic by default
        string labelColor = default("black"); // label color, black by default

        string fadeOutMode @enum("realTime","animationTime","simulationTime") = default("realTime"); // specifies how inactive links fade out
        double fadeOutTime @unit(s) = default(1s); // how quickly inactive links fade away, 1 second by default
        double fadeOutAnimationSpeed = default(0); // animation speed while there are active links, value must be in the range (0, +inf)

        @class(LinkVisualizerBase);
}

File: src/inet/visualizer/base/LinkVisualizerBase.ned