[Bf-committers] GSoC 2014 Aspirant: Implementation of a Pyramid Primitive in Blender

[Tamungang Brian]

Hi,
Thanks to Greg Zaal and Gaia for their wonderful suggestions in
response to my GSoC proposition.

Greg suggested the creation of the pyramid primitive as an addon
because it will have niche users.
Gaia suggested the addition of preset buttons to mesh primitive operators.

While thinking deeply about it, I tried to rank these two according to
level of utility. I think Gaia's suggestion benefits everyone and so
is more utilitarian. So I'm developing my GSoC proposal in that
direction.
In addition, I have not found a way to accurately create mesh
primitives; say I wanted a plane of a particular surface area, or
sphere of a particular radius. I would like to give users the power to
do that for the mesh primitives, finetune the way they use primitives
in Blender. I think many professional will find this useful.
Based on this, I would like to know where exactly the code for
primitives exit in the source. I also need a doc that explains Blender
UI and where its code resides because I will add a window from which
those specifics could be input.

Suggetions are welcome.
Cheers.
Brian.

On 3/15/14, Alberto Torres <kungfoobar at gmail.com> wrote:
> I usually select the 4 top vertices of the cube and merge them. Then press
> GZ=-2+(desired height here)
>
>
> 2014-03-15 22:16 GMT+01:00 Gaia <gaia.clary at machinimatrix.org>:
>
>> What about adding preset buttons to the mesh primitive operators ?
>> Once the preset buttons are in place, users can add their own presets as
>> they like.
>> Maybe that could be a useful improvement over what we have by now ?
>>
>> And then we always could add some default presets where they make sense,
>> for the Cone maybe something like:
>>
>> (Pyramid = vertices:4, Depth:sqrt(2), Rotation:45)
>> (Tetraeder = vertices:3, Depth:sqrt(2), Radius1:sqrt(2/3))
>>
>> Just a thought though :)
>>
>> cheers,
>> Gaia
>>
>> On 15.03.2014 21:50, Eugene Minov wrote:
>> > To create a cone one must enter a radius.
>> > To create a pyramid one must enter size/sizes.
>> >
>> > Visually you can create pyramid from a cone but you would have trouble
>> > to
>> > set exact size, i.e. you must calculate it manually using sin/cos, etc.
>> > Also you can't create non quad pyramid.
>> > Also cone-pyramid will be positioned with 45 angle on Z axes.
>> >
>> > All these obviously can be changed manually after but it's not very
>> > practical and takes extra time.
>> > Just my 5 cents.
>> >
>> >
>> > On Sat, Mar 15, 2014 at 8:15 PM, Harley Acheson <
>> harley.acheson at gmail.com>wrote:
>> >
>> >>> A pyramid has a polygonal base with n-sides, n=3 or n>3...
>> >> Yes, but as Campbell mentions, we get exactly that if we add a cone
>> >> but
>> >> change the vertices to three or four? As shown in this
>> >> image<http://www.pasteall.org/pic/show.php?id=68305>
>> >> :
>> >>
>> >> [image: Inline image 1]
>> >>
>> >> Harley
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