Hello Daniel!
Well, I was busy with some honors project since two days, so I didn't
update you on what I've been doing. Sorry about that.
So, I have been looking at mathematical approaches for primitives and right
now I have implemented :
1. Surface area callback for HYP (Elliptical Hyperboloid of one sheet)
2. Volume callback for RHC (Right Hyperbolic Cylinder)
3. Surface Area callback for EHY (Elliptical Hyperboloid of two sheets
(half part))
4. Volume Callback for EHY
5. Centroid Callback for EHY
There was a small error in surface area calculations for RHC -- fixed that.
I think I haven't got #1 perfectly but #2 to #5 are 100% up to the mark. I
will get #1 perfectly as soon as possible.
There is a list that I have prepared to which I refer while working on
primitives :
https://docs.google.com/spreadsheets/d/1IFwjwKOrqH98sZdKo-5LssbThoOuYcGb7QYvLBv79_w/edit?usp=sharing
I will send you the worked out math behind all the work I have done as
well, before Wednesday.
Well, most importantly, when do we discuss about the generic method?
About the overall plan that we will follow for the development period?
There might be time to add one or two new classes to the GE. Do we consider
that?
These are some things I would like to discuss / get answers to.
PS : I need a 64-bit OS for my honors work it seems. Things aren't going
well on 32-bit OS. So, I'm reinstalling my OS. So, it'll take some time to
get back, but I should be back to normal development by tomorrow evening.
:)
On Monday, May 4, 2015, Daniel Roßberg <danielmrossb...@gmail.com> wrote:
> 2015-05-03 15:42 GMT+02:00 Vasco Alexandre da Silva Costa
> <vasco.co...@gmail.com>:
> > This is just my opinion but I think you should have primitive specific
> > methods where possible as they will be much more computationally
> efficient.
>
> This is the restriction: "where possible". It isn't possible for
> every type, e.g. combination. Therefore we need a general method. On
> the other hand such a method would be a good generic rt_functab entry
> for primitives were we haven't a specialized function yet.
>
> > On Sun, May 3, 2015 at 10:15 AM, Kalpit Thakkar <ceasy...@gmail.com>
> wrote:
> >>
> >> Hello Daniel!
> >> I wanted to discuss about the approach that could be followed in
> enhancing
> >> the Geometry Engine by adding the support for Volume, Centroid and
> Surface
> >> Area callbacks for primitives.
> >> As we had talked before, it could be a general method or it can be
> >> implementing the missing functions in librt. In any case, combinations
> >> *MUST* be entailed and hence general method seems to be the better
> choice.
>
> Implementing the missing functions includes to implement a generic one
> too. However, you could start with implementing primitive specific
> functions if you know how (i.e. it is relatively easy for you) to gain
> experience in doing so. This could be a good patch to demonstrate
> your programming skills to get commit access.
>
> >> However, I would like to discuss the pros and cons of the general method
> >> and about where to look so that I can understand it nicely.
> >> Please suggest a time when we can meet up on IRC and discuss the same.
> >>
> >> About the interaction schedule : I think it'll be great if we can meet
> up
> >> on IRC atleast twice a week when I'll update you with the progress and
> >> discuss about the difficulties faced. I suggest Monday and Friday.
> Ofcourse,
> >> you can always check the development log (
> http://brlcaddev.wordpress.com)
> >> whenever required.
>
> At least in May and June I'm traveling a lot, so I cannot promise to
> be regular available on IRC. But e-mail via the mailing list, like
> this one, is fine. And there are other competent mentors too.
>
> >> About the commit access : I promised you that I would merge the Pipe
> >> implementation done by Andrei Popescu. I have applied the indentation
> rules
> >> on the test files and the final patch is ready. I'll upload it and after
> >> reviewing, if it's ready for merging, it'll be a delight. So, please
> tell me
> >> what to do about it.
>
> If it's OK I'll commit it. (I want to get it done too.)
>
> >> Last but not the least : I feel privileged to have this opportunity. I'm
> >> glad I now have a real chance to make a difference. Muchas Gracias :D
>
> You are welcome :)
>
>
> Regards,
> Daniel
>
>
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