Radian LookUp Table

[wossname]

Why not just wrap an array in a function and pass a float to that and do some internal processing.

Also: Default properties of classes can take floats as arguments (as well as anything else in fact.

[Halsafar]

Yes but:
Vector *m_VectorCircle
m_VectorCirlce = new Vector[360]
m_VectorCircle[2.56] <<-- error. You HAVE to use integers when diving through arrays. You can probably bitshift or increment the points by a float...but that probably won't do you any good.
delete [] m_VectorCircle

[opus]

Maybe I'm a bit easy minded, but:

I use only degrees in my prog.
I figured a lookup-table for every tenth of a degree gives enough accuracy.

So I use something like:
Create a LookUptable(array) for Sin(0 ...3599) and Cos(0 ..3599). The conversion from Rad is done in there.
Make a Function that takes degree as input and gives the Sinus/Cosinus as output. This Function uses the lookuptable and takes care of the multiplication from 1/10 degree to 1 degree.

So I only use a Sinus or Cosinus Function in my program that take degree as input!

[Halsafar]

Thats pretty what I'm doing but now I only get a 0-360 range of movement.
Its not a bad idea.
I suppose.


Also to clarify with my last post.
I believe you overload the [] operator in a class with a float.

[opus]

Sorry forgot to mention, when calling the sinus or Cosinus function, I take degree as input, but I only use it as an integer! In my application (where I'm using 1/10 degree resolution) I do something like

Sinus=SinusFromLookTableUpValue (Int(Degree*10))

the SinusFromLookupTable holds Values for each 1/10 degree.
That way I do not overload!!

[Halsafar]

Thats very intelligent.

Thanks for all the replies.

[opus]

Thats very intelligent.

I wish my math-teachers would have said that, back then..........