[x3d-public] Formulas of flowers

[Konstantin Smirnov]

Thanks! I saw your links
Fibonacci on other sites really exist. Formulas for roses not clear how to
apply,
I am looking for those that can be plugged in simple languages such as php
or JavaScript,

More important is to have formulas. For example for drawing leaves. At
first for php, then for 3d

вс, 4 июл. 2021 г., 03:15 John Carlson <yottzumm at gmail.com>:

> Ah, GD, I’ve used that in Perl, not PHP.   I was never really impressed by
> GD, but it may work for 2D.   I can help with JavaScript, GLSL or maybe
> Perl (OBJ file) if you want 3D.  I don’t have my AppleSoft Basic around any
> more.
>
> Maybe you want something like vpython?
>
> You seem to be lazy and not even using resources given to you?   What kind
> of flower do you want to draw?
>
> Look up converting converting polar or spherical coordinates to Cartesian
> coordinates would be a good start.  Also look up L-systems and graftals.
>
> John
>
> On Sat, Jul 3, 2021 at 6:53 PM John Carlson <yottzumm at gmail.com> wrote:
>
>> I would start out with something like Processing, not php.
>>
>> Good luck!
>>
>> On Sat, Jul 3, 2021 at 6:51 PM John Carlson <yottzumm at gmail.com> wrote:
>>
>>> I’ve never heard of php doing drawings.  You mean SVG or X3D?
>>>
>>> https://en.m.wikipedia.org/wiki/Rose_(mathematics)
>>>
>>> I don’t know about real flowers.   Good luck with that.
>>>
>>> Number theory is really an odd choice, but I guess I suggested
>>> Fibonacci.  That was more for numbers of petals.
>>>
>>> John
>>>
>>> On Sat, Jul 3, 2021 at 6:41 PM Konstantin Smirnov <
>>> konstantin.e.smirnov at gmail.com> wrote:
>>>
>>>> Thanks! I mean simple algorithm or formulas, for example on php, that
>>>> can easily draw flowers with math, number theory. For example, some flowers
>>>> may have structure like math equations solutions.
>>>>
>>>> Or for beginning, simply drawing a flower on php code.
>>>>
>>>> вс, 4 июл. 2021 г., 01:19 John Carlson <yottzumm at gmail.com>:
>>>>
>>>>> Mathematical Roses or Rhodonea should jump start you.   Also look up
>>>>> @sxywu on Twitter.   Her data sketches book may have specifics for a
>>>>> variety of “flowers”. For a more techy look, find Maurer Roses.
>>>>>
>>>>> I don’t know what you mean by Nt.   You can find shaders or JavaScript
>>>>> code in X3DJSONLD.   File names with “flower” or contents of “rose” will
>>>>> likely give you a jump start in 3D, but they are quite artificial and even
>>>>> more so animated.  Plus it seems like my code is currently in a non-working
>>>>> state.
>>>>>
>>>>> I would try something with Fibonacci, golden ratio to get things more
>>>>> natural, or perhaps particle systems for imperfections.
>>>>>
>>>>> For previews, checkout https://codextreme.net. One can get quite a
>>>>> lot of diversity with parametric equations, especially when animating
>>>>> parameters.
>>>>>
>>>>> http://www.grad.hr/sgorjanc/Links/roses.pdf
>>>>>
>>>>>
>>>>> Good luck!
>>>>> On Sat, Jul 3, 2021 at 11:45 AM Konstantin Smirnov <
>>>>> konstantin.e.smirnov at gmail.com> wrote:
>>>>>
>>>>>> Hi
>>>>>> Who knows formulas that can be used for drawing of flowers? Nt or
>>>>>> algorithms
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>>>>>> http://web3d.org/mailman/listinfo/x3d-public_web3d.org
>>>>>>
>>>>>
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