About tcRunCycle()
18 May 2011 06:10 #9910
by euerka
About tcRunCycle() was created by euerka
When i read the source code in void tcRunCycle(TP_STRUCT *tp, TC_STRUCT *tc, double *v, int *on_final_decel) , I can't understand the follows mean:
discr = 0.5 * tc->cycle_time * tc->currentvel - (tc->target - tc->progress);
discr = 0.25 * pmSq(tc->cycle_time) - 2.0 / tc->maxaccel * discr;
newvel = maxnewvel = -0.5 * tc->maxaccel * tc->cycle_time +tc->maxaccel * pmSqrt(discr);
although i have read Simple Tp Notes(wiki.linuxcnc.org/emcinfo.pl?action=history&id=Simple_Tp_Notes), and understand it.
Is there anyone can explain it? or you can contact me with email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Thank you very much.
discr = 0.5 * tc->cycle_time * tc->currentvel - (tc->target - tc->progress);
discr = 0.25 * pmSq(tc->cycle_time) - 2.0 / tc->maxaccel * discr;
newvel = maxnewvel = -0.5 * tc->maxaccel * tc->cycle_time +tc->maxaccel * pmSqrt(discr);
although i have read Simple Tp Notes(wiki.linuxcnc.org/emcinfo.pl?action=history&id=Simple_Tp_Notes), and understand it.
Is there anyone can explain it? or you can contact me with email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Thank you very much.
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18 May 2011 11:53 #9911
by BigJohnT
Replied by BigJohnT on topic Re:About tcRunCycle()
You might ask this on the mailing list as the developers hangout there.
John
John
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18 May 2011 12:11 #9912
by euerka
Replied by euerka on topic Re:About tcRunCycle()
Yes. I think it is a basic question. Anyway thank you, i will try there.
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18 May 2011 13:09 #9913
by BigJohnT
Replied by BigJohnT on topic Re:About tcRunCycle()
Yes, basic for a developer... mostly users hang out here.
John
John
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19 May 2011 12:30 #9925
by euerka
Replied by euerka on topic Re:About tcRunCycle()
But there is nobody reply it. I am still looking forward to anyone explain it to me here.
Thank you!
Thank you!
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20 May 2011 06:39 #9944
by euerka
Replied by euerka on topic Re:About tcRunCycle()
Anders Wallin have explained it on the mailing list. Thank him very much.Here it goes:http://www.anderswallin.net/2011/05/emc2-tpruncycle-revisited/
Chen Chengxi
Chen Chengxi
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