# Start point 4 sin wave

**URL:** <https://forum.kirupa.com/t/start-point-4-sin-wave/98040>\
**Category:** Uncategorized\
**Created:** [January 2, 2004, 6:16am UTC](https://forum.kirupa.com/t/start-point-4-sin-wave/98040 "2004-01-02T06:16:32Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![hognav2t](https://avatars.discourse-cdn.com/v4/letter/h/eb8c5e/32.png) [@hognav2t](https://forum.kirupa.com/u/hognav2t)\
**Post date:** [January 2, 2004, 6:16am UTC](https://forum.kirupa.com/t/start-point-4-sin-wave/98040/1 "2004-01-02T06:16:32Z")

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hi guys,

i have mc cruisin along a sin wave curve, code:

onClipEvent(load){  
var position=\_x=0,\_y=0;  
}  
onClipEvent(enterFrame){  
position +=1  
\_y=position;  
\_x=100_Math.sin(\_root.rand_position);  
}

Q: how can i set an orgin/start point?

thnx tons !!~~