Difference between revisions of "B2.PrismaticJoint"

From GiderosMobile
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__NOTOC__
 
__NOTOC__
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<!-- GIDEROSOBJ:b2.PrismaticJoint -->
 
'''<translate>Supported platforms</translate>:''' [[File:Platform android.png]][[File:Platform ios.png]][[File:Platform mac.png]][[File:Platform pc.png]]<br/>
 
'''<translate>Supported platforms</translate>:''' [[File:Platform android.png]][[File:Platform ios.png]][[File:Platform mac.png]][[File:Platform pc.png]]<br/>
 
'''<translate>Available since</translate>:''' Gideros 2011.6<br/>
 
'''<translate>Available since</translate>:''' Gideros 2011.6<br/>
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| style="width: 50%; vertical-align:top;"|
 
| style="width: 50%; vertical-align:top;"|
 
=== <translate>Methods</translate> ===
 
=== <translate>Methods</translate> ===
[[Special:MyLanguage/b2.PrismaticJoint:enableLimit|b2.PrismaticJoint:enableLimit]] ''<translate>enables or disables the joint limit</translate>''<br/>
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[[Special:MyLanguage/b2.PrismaticJoint:enableLimit|b2.PrismaticJoint:enableLimit]] ''<translate>enables or disables the joint limit</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:enableLimit -->
[[Special:MyLanguage/b2.PrismaticJoint:enableMotor|b2.PrismaticJoint:enableMotor]] ''<translate>enables or disables the joint motor</translate>''<br/>
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[[Special:MyLanguage/b2.PrismaticJoint:enableMotor|b2.PrismaticJoint:enableMotor]] ''<translate>enables or disables the joint motor</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:enableMotor -->
[[Special:MyLanguage/b2.PrismaticJoint:getJointSpeed|b2.PrismaticJoint:getJointSpeed]] ''<translate>returns the current joint translation speed in meters per second</translate>''<br/>
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[[Special:MyLanguage/b2.PrismaticJoint:getJointSpeed|b2.PrismaticJoint:getJointSpeed]] ''<translate>returns the current joint translation speed in meters per second</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:getJointSpeed -->
[[Special:MyLanguage/b2.PrismaticJoint:getJointTranslation|b2.PrismaticJoint:getJointTranslation]] ''<translate>returns the current joint translation in meters</translate>''<br/>
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[[Special:MyLanguage/b2.PrismaticJoint:getJointTranslation|b2.PrismaticJoint:getJointTranslation]] ''<translate>returns the current joint translation in meters</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:getJointTranslation -->
[[Special:MyLanguage/b2.PrismaticJoint:getLimits|b2.PrismaticJoint:getLimits]] ''<translate>returns the lower and upper joint limits in meters</translate>''<br/>
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[[Special:MyLanguage/b2.PrismaticJoint:getLimits|b2.PrismaticJoint:getLimits]] ''<translate>returns the lower and upper joint limits in meters</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:getLimits -->
[[Special:MyLanguage/b2.PrismaticJoint:getMotorSpeed|b2.PrismaticJoint:getMotorSpeed]] ''<translate>returns the motor speed in meters per second</translate>''<br/>
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[[Special:MyLanguage/b2.PrismaticJoint:getMotorSpeed|b2.PrismaticJoint:getMotorSpeed]] ''<translate>returns the motor speed in meters per second</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:getMotorSpeed -->
[[Special:MyLanguage/b2.PrismaticJoint:isLimitEnabled|b2.PrismaticJoint:isLimitEnabled]] ''<translate>is the joint limit enabled?</translate>''<br/>
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[[Special:MyLanguage/b2.PrismaticJoint:isLimitEnabled|b2.PrismaticJoint:isLimitEnabled]] ''<translate>is the joint limit enabled?</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:isLimitEnabled -->
[[Special:MyLanguage/b2.PrismaticJoint:isMotorEnabled|b2.PrismaticJoint:isMotorEnabled]] ''<translate>is the joint motor enabled?</translate>''<br/>
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[[Special:MyLanguage/b2.PrismaticJoint:isMotorEnabled|b2.PrismaticJoint:isMotorEnabled]] ''<translate>is the joint motor enabled?</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:isMotorEnabled -->
[[Special:MyLanguage/b2.PrismaticJoint:setLimits|b2.PrismaticJoint:setLimits]] ''<translate>sets the joint limits in meters</translate>''<br/>
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[[Special:MyLanguage/b2.PrismaticJoint:setLimits|b2.PrismaticJoint:setLimits]] ''<translate>sets the joint limits in meters</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:setLimits -->
[[Special:MyLanguage/b2.PrismaticJoint:setMaxMotorForce|b2.PrismaticJoint:setMaxMotorForce]] ''<translate>sets the maximum motor force in N</translate>''<br/>
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[[Special:MyLanguage/b2.PrismaticJoint:setMaxMotorForce|b2.PrismaticJoint:setMaxMotorForce]] ''<translate>sets the maximum motor force in N</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:setMaxMotorForce -->
[[Special:MyLanguage/b2.PrismaticJoint:setMotorSpeed|b2.PrismaticJoint:setMotorSpeed]] ''<translate>sets the motor speed in meters per second</translate>''<br/>
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[[Special:MyLanguage/b2.PrismaticJoint:setMotorSpeed|b2.PrismaticJoint:setMotorSpeed]] ''<translate>sets the motor speed in meters per second</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:setMotorSpeed -->
[[Special:MyLanguage/b2.RevoluteJoint:getMotorForce|b2.RevoluteJoint:getMotorForce]] ''<translate>returns the current motor force given the inverse time step</translate>''<br/>
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[[Special:MyLanguage/b2.RevoluteJoint:getMotorForce|b2.RevoluteJoint:getMotorForce]] ''<translate>returns the current motor force given the inverse time step</translate>''<br/><!-- GIDEROSMTD:b2.RevoluteJoint:getMotorForce -->
 
| style="width: 50%; vertical-align:top;"|
 
| style="width: 50%; vertical-align:top;"|
 
=== <translate>Events</translate> ===
 
=== <translate>Events</translate> ===
 
=== <translate>Constants</translate> ===
 
=== <translate>Constants</translate> ===
 
|}
 
|}

Revision as of 14:55, 31 August 2018

Supported platforms: Platform android.pngPlatform ios.pngPlatform mac.pngPlatform pc.png
Available since: Gideros 2011.6
Inherits from: b2.Joint

Description


A prismatic joint. This joint provides one degree of freedom: translation along an axis fixed in body1. Relative rotation is prevented. You can use a joint limit to restrict the range of motion and a joint motor to drive the motion or to model joint friction.

Examples

Prismatic joint

--create empty box2d body for joint
local ground = world:createBody({})
ground:setPosition(465, 480)

--axisx, 	axisy	values usually between 0 and 1
--0			0		moves freely
--0			1		moves on y axis
--1			0		moves on x axis
--1			1		moves on diagonal
local jointDef = b2.createPrismaticJointDef(body, ground, 350, 100, 0.3, 1)
local prismaticJoint = world:createJoint(jointDef)

Methods

b2.PrismaticJoint:enableLimit enables or disables the joint limit
b2.PrismaticJoint:enableMotor enables or disables the joint motor
b2.PrismaticJoint:getJointSpeed returns the current joint translation speed in meters per second
b2.PrismaticJoint:getJointTranslation returns the current joint translation in meters
b2.PrismaticJoint:getLimits returns the lower and upper joint limits in meters
b2.PrismaticJoint:getMotorSpeed returns the motor speed in meters per second
b2.PrismaticJoint:isLimitEnabled is the joint limit enabled?
b2.PrismaticJoint:isMotorEnabled is the joint motor enabled?
b2.PrismaticJoint:setLimits sets the joint limits in meters
b2.PrismaticJoint:setMaxMotorForce sets the maximum motor force in N
b2.PrismaticJoint:setMotorSpeed sets the motor speed in meters per second
b2.RevoluteJoint:getMotorForce returns the current motor force given the inverse time step

Events

Constants