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How to receive linear velocity?
#15842
06/23/03 02:09
06/23/03 02:09
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Joined: Sep 2001
Posts: 237
Maine, USA
Jason Bryant
OP
Member
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OP
Member
Joined: Sep 2001
Posts: 237
Maine, USA
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I can't seem to get the linear velocity of my physics object. When I use phent_getvelocity, I can't seem to get only the linear velocity. It seems to be a combination of linear and angular velocity. I may just be using the command incorrectly, but there isn't an example of it being used in the manual. ![[Frown]](images/icons/frown.gif) Would someone please post a simple example that shows how to get the linear velocity of an object using phent_getvelocity? Thanks, Jason
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Re: How to receive linear velocity?
#15843
06/23/03 17:36
06/23/03 17:36
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Joined: Oct 2001
Posts: 1,407
Helsinki, Finland
Phantom88
Expert
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Expert
Joined: Oct 2001
Posts: 1,407
Helsinki, Finland
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code:
phent_getvelocity(my, temp, nullvector);
Now Temp is the linear velocity.
~Phantom88~
Programmer, Gamer
ICQ #: 157485106 | Xfire: Phantom1988 | MSN: lauri_andler@hotmail.com | AIM: FinPhantom | YAHOO: FinPhantom
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Re: How to receive linear velocity?
#15844
06/24/03 00:19
06/24/03 00:19
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Joined: Sep 2001
Posts: 237
Maine, USA
Jason Bryant
OP
Member
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OP
Member
Joined: Sep 2001
Posts: 237
Maine, USA
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code:
str_cpy(temp_str1,"L Vel: ");
draw_text(temp_str1,400,30,vector(150,75,75));
phent_getvelocity(ball,temp,vector(0,0,0));
temp2 = vec_dist(temp,vector(0,0,0));
str_for_num(temp_str1,temp2);
draw_text(temp_str1,450,30,vector(150,75,75));
The above code is what I'm using... is this correct? temp2 still appears to be affected by the angular velocity of the ball...
Jason
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Re: How to receive linear velocity?
#15845
06/24/03 01:12
06/24/03 01:12
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Joined: Jul 2000
Posts: 2,037
Lafayette, LA USA
James Snydstrup
Senior Expert
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Senior Expert
Joined: Jul 2000
Posts: 2,037
Lafayette, LA USA
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quote:
phent_getvelocity(ball,temp,vector(0,0,0));
According to the manual you should get linear velocity using the above command. However, I haven't had any luck getting the linear velocity from any physics object that rotates i.e wheels using the above line of code.
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Re: How to receive linear velocity?
#15846
06/24/03 01:24
06/24/03 01:24
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Joined: Sep 2001
Posts: 237
Maine, USA
Jason Bryant
OP
Member
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OP
Member
Joined: Sep 2001
Posts: 237
Maine, USA
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I had read these posts before: http://www.conitecserver.com/ubb/ultimatebb.php?ubb=get_topic;f=32;t=000011but I had thought that I would still be able to obtain the linear velocity. The physics object I'm trying to get the information for is a rolling ball. I must be having the same problem as you then James. I wasn't sure if I was interpreting and using the commands correctly. Thanks, Jason
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