Difference between revisions of "B2.WheelJoint"
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'''Supported platforms:''' android, ios, mac, pc<br/> | '''Supported platforms:''' android, ios, mac, pc<br/> | ||
'''Available since:''' Gideros 2011.6<br/> | '''Available since:''' Gideros 2011.6<br/> | ||
| − | === Description === | + | === <translate>Description</translate> === |
<translate><br /> | <translate><br /> | ||
A wheel joint provides two degrees of freedom: translation along an axis fixed in bodyA and rotation in the plane. You can use a <br /> | A wheel joint provides two degrees of freedom: translation along an axis fixed in bodyA and rotation in the plane. You can use a <br /> | ||
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is designed for vehicle suspensions.<br /> | is designed for vehicle suspensions.<br /> | ||
<br /></translate> | <br /></translate> | ||
| − | === Examples === | + | === <translate>Examples</translate> === |
'''Wheel joint'''<br/> | '''Wheel joint'''<br/> | ||
<source lang="lua">--create empty box2d body for joint | <source lang="lua">--create empty box2d body for joint | ||
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{|- | {|- | ||
| style="width: 50%; vertical-align:top;"| | | style="width: 50%; vertical-align:top;"| | ||
| − | === Methods === | + | === <translate>Methods</translate> === |
[[Special:MyLanguage/b2.WheelJoint:enableMotor|b2.WheelJoint:enableMotor]] ''<translate>enables or disables the joint motor</translate>''<br/> | [[Special:MyLanguage/b2.WheelJoint:enableMotor|b2.WheelJoint:enableMotor]] ''<translate>enables or disables the joint motor</translate>''<br/> | ||
[[Special:MyLanguage/b2.WheelJoint:getJointSpeed|b2.WheelJoint:getJointSpeed]] ''<translate>returns the current joint translation speed in meters per second.</translate>''<br/> | [[Special:MyLanguage/b2.WheelJoint:getJointSpeed|b2.WheelJoint:getJointSpeed]] ''<translate>returns the current joint translation speed in meters per second.</translate>''<br/> | ||
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[[Special:MyLanguage/b2.WheelJoint:setSpringFrequencyHz|b2.WheelJoint:setSpringFrequencyHz]] ''<translate>sets the spring frequency in Hertz (0 = disable the spring)</translate>''<br/> | [[Special:MyLanguage/b2.WheelJoint:setSpringFrequencyHz|b2.WheelJoint:setSpringFrequencyHz]] ''<translate>sets the spring frequency in Hertz (0 = disable the spring)</translate>''<br/> | ||
| style="width: 50%; vertical-align:top;"| | | style="width: 50%; vertical-align:top;"| | ||
| − | === Events === | + | === <translate>Events</translate> === |
| − | === Constants === | + | === <translate>Constants</translate> === |
|} | |} | ||
Revision as of 08:28, 24 August 2018
Supported platforms: android, ios, mac, pc
Available since: Gideros 2011.6
Description
A wheel joint provides two degrees of freedom: translation along an axis fixed in bodyA and rotation in the plane. You can use a
joint limit to restrict the range of motion and a joint motor to drive the rotation or to model rotational friction. This joint
is designed for vehicle suspensions.
Examples
Wheel joint
--create empty box2d body for joint
local ground = world:createBody({})
ground:setPosition(350, 480)
--axisx, axisy values usually between 0 and 1
--0 0 moves freely
--0 1 force pulling back on y axis
--1 0 force pulling back on x axis
--1 1 force pulling back all diretions
local jointDef = b2.createWheelJointDef(body, ground, 350, 200, 1, 1)
local wheelJoint = world:createJoint(jointDef)
Methodsb2.WheelJoint:enableMotor enables or disables the joint motor |
EventsConstants |
