I need help!!!
I need create a vector in 2D from to the cordenates x and y. I have the x component, tx_l, and the y component, ty_l. I tried with the follow UDF:
real tx_l, ty_l;
real t_l [ND_ND]
tx_l = mu_l*C_DUDX(cell,thread_l)*C_UDSI_G(cell,thread_l, 0) + 0.5*mu_l*C_UDSI_G(cell,thread_l,0)*(C_DUDY(cell,thread_l) + C_DVDX(cell,thread_l));
ty_l = mu_l*C_DVDY(cell,thread_l)*C_UDSI_G(cell,thread_l, 0) + 0.5*mu_l*C_UDSI_G(cell,thread_l,0)*(C_DUDY(cell,thread_l) + C_DVDX(cell,thread_l));
ND_SET(t_l, t_l, tx_l, ty_l)
But this not works. The error is:
error: macro "ND_SET" requires 6 arguments, but only 4 given
Also I tried with:
t_l = tx_l;
t_l = ty_l;
In this case gave no error, but I'm not sure if well.
Anyone knows, how create a vector using the ND_SET macro in this case, which I have the components?
ND_SET requires 6 arguments no matter what the value of ND_ND is. you have to write something like
ND_SET(t_l, t_l, NULL, tx_l, ty_l, NULL)
because the 3rd and 6th arguments must appear but are not used if ND_ND is 2.
It is ok you assign the value for t_I array directly, which is almost the same as what the macro ND_SET does.
Thank you very much for your reply.
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