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varyCollisionProperties

Add variations to collision properties

Since R2023a

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Syntax

varyCollisionProperties(variations,actor1ID,actor2ID,Name=Value)
varyCollisionProperties(variations,collisionObj,Name=Value)

Description

example

varyCollisionProperties(variations,actor1ID,actor2ID,Name=Value) adds property variations for a collision between a pair of actors, actor1ID and actor2ID, in the variationProperties object variations by using one or more name-value arguments.

example

varyCollisionProperties(variations,collisionObj,Name=Value) adds property variations for a collision specified by the collision object collisionObj in the variationProperties object variations by using one or more name-value arguments.

Note

This function requires the Automated Driving Toolbox™ Test Suite for Euro NCAP® Protocols support package. You can install Automated Driving Toolbox Test Suite for Euro NCAP Protocols from the Add-On Explorer. For more information about installing add-ons, see Get and Manage Add-Ons.

Examples

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This example uses:

Open Live Script

Create an empty variationProperties object.

variation = variationProperties;

Add a collision variation for a pair of actors with actorID values of 1 and 2.

varyCollisionProperties(variation,1,2,Actor2CollisionFraction=0.3)

Display the collision variation information.

disp(variation.CollisionVariationProperties)
                   Actor1ID: 1
                   Actor2ID: 2
    Actor2CollisionFraction: 0.3000
              VariationType: 'WaitTime'

This example uses:

Open Live Script

Load a seed scenario with a single collision into the workspace.

load("seedScenarioWithSingleCollision.mat")

Create a scenarioDescriptor object using the loaded driving scenario scenario.

scenarioDescriptor = getScenarioDescriptor(scenario,Simulator="DrivingScenario");

Extract collision information from the scenarioDescriptor object using the collision information from the seed scenario.

collisionsInScenario = getCollisionData(scenarioDescriptor);

Create an empty variationProperties object.

variation = variationProperties;

Add collision variation properties to the variationProperties object.

varyCollisionProperties(variation,collisionsInScenario.Collision,Actor2CollisionFraction=0.3);

Display the collision property variations.

disp(variation.CollisionVariationProperties)
                   Actor1ID: 1
                   Actor2ID: 2
    Actor2CollisionFraction: 0.3000
              VariationType: 'WaitTime'

Input Arguments

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Variation properties, specified as a variationProperties object.

First actor ID, specified as a positive integer.

Second actor ID, specified as a positive integer.

Collision information, specified as a collision object.

To get a collision object from the input scenario, use the getCollisionData function. For more information on the collision object, see the collisionInfo output argument of the getCollisionData function.

Name-Value Arguments

Specify optional pairs of arguments as Name1=Value1,...,NameN=ValueN, where Name is the argument name and Value is the corresponding value. Name-value arguments must appear after other arguments, but the order of the pairs does not matter.

Example: varyCollisionProperties(variation,collisionObj,Actor1CollisionFraction=0.3) specifies a variant collision fraction of 0.3 for the first actor.

Point of collision relative to the collision side of the first actor, specified as a scalar in the range [0, 1]. For more information on collision fractions, see Collision Fraction.

Example: Actor1CollisionFraction=0.3 specifies a variant collision fraction of 0.3 for the first actor.

Side of the first actor at which collision occurs, specified as "Front", "Left", "Back", or "Right". For more information on how to use this argument, see Tips and Limitations.

Example: Actor1CollisionSide="Front" specifies the variant collision side as "Front" for the first actor.

Point of collision relative to the collision side of the second actor, specified as a scalar in the range [0, 1]. For more information on collision fractions, see Collision Fraction.

Example: Actor2CollisionFraction=0.3 specifies a variant collision fraction of 0.3 for the second actor.

Side of the second actor at which collision occurs, specified as "Front", "Left", "Back", or "Right". For more information on how to use this argument, see Tips and Limitations.

Example: Actor2CollisionSide="Front" specifies the collision side as "Front" for the second actor.

Parameter to vary to generate variants, specified as "WaitTime", "EntryTime", or "Waypoints".

  • WaitTime — Varies wait time of an actor to create scenario variants.

  • EntryTime — Varies entry time of an actor to create scenario variants.

  • Waypoints — Varies waypoints of an actor to create scenario variants.

Example: VariationType="WaitTime" varies wait time of an actor to create scenario variants.

Limitations

  • To apply collision variations, your seed scenario must contain actor collisions.

  • The collision side of an actor in the seed scenario must match the collision side of that actor for which you generate variations.

Tips

  • To apply collision variations to your seed scenario, use the generateVariants function.

  • The actor collision points Actor1CollisionFraction and Actor2CollisionFraction are relative to their respective collision sides, Actor1CollisionSide and Actor2CollisionSide.

  • You can find the collision side of an actor in the seed scenario by referring to the CollisionSide field of the collision object.

Version History

Introduced in R2023a

See Also

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