Difference between revisions of "B2.PrismaticJoint"
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local prismaticJoint = world:createJoint(jointDef)</source> | local prismaticJoint = world:createJoint(jointDef)</source> | ||
{|- | {|- | ||
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=== Methods === | === Methods === | ||
| − | [[b2.PrismaticJoint:enableLimit]] | + | [[b2.PrismaticJoint:enableLimit]] ''<translate>enables or disables the joint limit</translate>''<br/> |
| − | [[b2.PrismaticJoint:enableMotor]] | + | [[b2.PrismaticJoint:enableMotor]] ''<translate>enables or disables the joint motor</translate>''<br/> |
| − | [[b2.PrismaticJoint:getJointSpeed]] | + | [[b2.PrismaticJoint:getJointSpeed]] ''<translate>returns the current joint translation speed in meters per second</translate>''<br/> |
| − | [[b2.PrismaticJoint:getJointTranslation]] | + | [[b2.PrismaticJoint:getJointTranslation]] ''<translate>returns the current joint translation in meters</translate>''<br/> |
| − | [[b2.PrismaticJoint:getLimits]] | + | [[b2.PrismaticJoint:getLimits]] ''<translate>returns the lower and upper joint limits in meters</translate>''<br/> |
| − | [[b2.PrismaticJoint:getMotorSpeed]] | + | [[b2.PrismaticJoint:getMotorSpeed]] ''<translate>returns the motor speed in meters per second</translate>''<br/> |
| − | [[b2.PrismaticJoint:isLimitEnabled]] | + | [[b2.PrismaticJoint:isLimitEnabled]] ''<translate>is the joint limit enabled?</translate>''<br/> |
| − | [[b2.PrismaticJoint:isMotorEnabled]] | + | [[b2.PrismaticJoint:isMotorEnabled]] ''<translate>is the joint motor enabled?</translate>''<br/> |
| − | [[b2.PrismaticJoint:setLimits]] | + | [[b2.PrismaticJoint:setLimits]] ''<translate>sets the joint limits in meters</translate>''<br/> |
| − | [[b2.PrismaticJoint:setMaxMotorForce]] | + | [[b2.PrismaticJoint:setMaxMotorForce]] ''<translate>sets the maximum motor force in N</translate>''<br/> |
| − | [[b2.PrismaticJoint:setMotorSpeed]] | + | [[b2.PrismaticJoint:setMotorSpeed]] ''<translate>sets the motor speed in meters per second</translate>''<br/> |
| − | [[b2.RevoluteJoint:getMotorForce]] | + | [[b2.RevoluteJoint:getMotorForce]] ''<translate>returns the current motor force given the inverse time step</translate>''<br/> |
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=== Events === | === Events === | ||
=== Constants === | === Constants === | ||
|} | |} | ||
Revision as of 14:30, 23 August 2018
Supported platforms: android, ios, mac, pc
Available since: Gideros 2011.6
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)
Methodsb2.PrismaticJoint:enableLimit enables or disables the joint limit |
EventsConstants |
