Difference between revisions of "B2.PrismaticJoint"

From GiderosMobile
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=== <translate>Methods</translate> ===
 
=== <translate>Methods</translate> ===
[[Special:MyLanguage/b2.PrismaticJoint:enableLimit|b2.PrismaticJoint:enableLimit]] ''<translate>enables or disables the joint limit</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:enableLimit -->
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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(flag) enables or disables the joint limit -->
[[Special:MyLanguage/b2.PrismaticJoint:enableMotor|b2.PrismaticJoint:enableMotor]] ''<translate>enables or disables the joint motor</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:enableMotor -->
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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(flag) enables or disables the joint motor -->
[[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 -->
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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() returns the current joint translation speed in meters per second -->
[[Special:MyLanguage/b2.PrismaticJoint:getJointTranslation|b2.PrismaticJoint:getJointTranslation]] ''<translate>returns the current joint translation in meters</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:getJointTranslation -->
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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() returns the current joint translation in meters -->
[[Special:MyLanguage/b2.PrismaticJoint:getLimits|b2.PrismaticJoint:getLimits]] ''<translate>returns the lower and upper joint limits in meters</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:getLimits -->
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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() returns the lower and upper joint limits in meters -->
[[Special:MyLanguage/b2.PrismaticJoint:getMotorSpeed|b2.PrismaticJoint:getMotorSpeed]] ''<translate>returns the motor speed in meters per second</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:getMotorSpeed -->
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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() returns the motor speed in meters per second -->
[[Special:MyLanguage/b2.PrismaticJoint:isLimitEnabled|b2.PrismaticJoint:isLimitEnabled]] ''<translate>is the joint limit enabled?</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:isLimitEnabled -->
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[[Special:MyLanguage/b2.PrismaticJoint:isLimitEnabled|b2.PrismaticJoint:isLimitEnabled]] ''<translate>is the joint limit enabled?</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:isLimitEnabled() is the joint limit enabled? -->
[[Special:MyLanguage/b2.PrismaticJoint:isMotorEnabled|b2.PrismaticJoint:isMotorEnabled]] ''<translate>is the joint motor enabled?</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:isMotorEnabled -->
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[[Special:MyLanguage/b2.PrismaticJoint:isMotorEnabled|b2.PrismaticJoint:isMotorEnabled]] ''<translate>is the joint motor enabled?</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:isMotorEnabled() is the joint motor enabled? -->
[[Special:MyLanguage/b2.PrismaticJoint:setLimits|b2.PrismaticJoint:setLimits]] ''<translate>sets the joint limits in meters</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:setLimits -->
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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(lower,upper) sets the joint limits in meters -->
[[Special:MyLanguage/b2.PrismaticJoint:setMaxMotorForce|b2.PrismaticJoint:setMaxMotorForce]] ''<translate>sets the maximum motor force in N</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:setMaxMotorForce -->
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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(force) sets the maximum motor force in N -->
[[Special:MyLanguage/b2.PrismaticJoint:setMotorSpeed|b2.PrismaticJoint:setMotorSpeed]] ''<translate>sets the motor speed in meters per second</translate>''<br/><!-- GIDEROSMTD:b2.PrismaticJoint:setMotorSpeed -->
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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(speed) sets the motor speed in meters per second -->
[[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 -->
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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(inv_dt) returns the current motor force given the inverse time step -->
 
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=== <translate>Events</translate> ===
 
=== <translate>Events</translate> ===
 
=== <translate>Constants</translate> ===
 
=== <translate>Constants</translate> ===
 
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Revision as of 16:32, 13 September 2018


Supported platforms: Platform android.pngPlatform ios.pngPlatform mac.pngPlatform pc.pngPlatform html5.pngPlatform winrt.pngPlatform win32.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