[Ipe-discuss] Fwd: How to draw a spring?

[Nathaniel Cunningham]

p.s. this parametric plotting approach was used to create the "I" in the
Ipe program icon!
[image: ipe128.png]

Nathaniel

On Thu, Feb 18, 2021 at 8:33 AM Nathaniel Cunningham <
nathaniel.cunningham at gmail.com> wrote:

> Yes, as Otfried said -- I plot multiple cycles of a parametric circle
> (x=cos(t), y=sin(t) or similar) with an added translation (extra t term in
> x or y).
>
> I attach a screenshot showing an example including the values used in the
> plot ipelet.
>
> Nathaniel
>
> [image: ipe plot springs.png]
>
>
> On Thu, Feb 18, 2021 at 2:13 AM Hemza <hemza.dz at gmail.com> wrote:
>
>> cool, I know about ipeplot and use it for basic functions plotting. could
>> you elaborate more on how to describe a spring parametrically?
>>
>>
>> On Wed, 17 Feb 2021 at 20:31, Nathaniel Cunningham via Ipe-discuss <
>> ipe-discuss at lists.science.uu.nl> wrote:
>>
>>> The "plots" ipelet is a great way to create springs and other shapes
>>> that can be mathematically defined!
>>> https://github.com/lahvak/ipeplots
>>>
>>> -- Nathaniel
>>>
>>> On Wed, Feb 17, 2021 at 1:26 PM Nathaniel Cunningham <
>>> nathaniel.cunningham at gmail.com> wrote:
>>>
>>>> The "plots" ipelet is a great way to create springs and other shapes
>>>> that can be mathematically defined!
>>>> https://github.com/lahvak/ipeplots
>>>>
>>>>
>>>> On Wed, Feb 17, 2021 at 11:31 AM Hemza via Ipe-discuss <
>>>> ipe-discuss at lists.science.uu.nl> wrote:
>>>>
>>>>>
>>>>>
>>>>> ---------- Forwarded message ---------
>>>>> From: Hemza <hemza.dz at gmail.com>
>>>>> Date: Wed, 17 Feb 2021 at 08:24
>>>>> Subject: Re: [Ipe-discuss] How to draw a spring?
>>>>> To: Fabien Lafont <lafont.fabien at gmail.com>
>>>>>
>>>>>
>>>>> Thanks for the tips. svgtoipe is a good way to do it.
>>>>>
>>>>> On Wed, 17 Feb 2021 at 07:51, Fabien Lafont <lafont.fabien at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> With Bézier curves and the snap to grid you can easily make one. Then
>>>>>> you can stretch it. Another solution is to use one that you like and use
>>>>>> svgtoipe or pdftoipe.
>>>>>>
>>>>>> On Wed, Feb 17, 2021, 08:30 Hemza <hemza.dz at gmail.com> wrote:
>>>>>>
>>>>>>> it is possible to sketch 'zig zag' springs, but coils like springs
>>>>>>> are not easy to sketch.
>>>>>>>
>>>>>>> On Wed, 17 Feb 2021 at 07:19, Fabien Lafont <lafont.fabien at gmail.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> Just stretch it. Keyboard shortcut : e
>>>>>>>>
>>>>>>>> On Wed, Feb 17, 2021, 08:10 Hemza via Ipe-discuss <
>>>>>>>> ipe-discuss at lists.science.uu.nl> wrote:
>>>>>>>>
>>>>>>>>> Hi,
>>>>>>>>> I just began to learn how to use Ipe. It is a great tool and
>>>>>>>>> already saved me many hours on drawing physics illustrations.
>>>>>>>>> One thing that I find frustrating to draw is drawing 'springs'
>>>>>>>>> (which are crucial things in mechanics problems). In Tikz, you could
>>>>>>>>> control how the spring looks like (see e.g
>>>>>>>>> https://tex.stackexchange.com/questions/41608/draw-mechanical-springs-in-tikz).
>>>>>>>>> Is there anything I can do to mimic this on Ipe?
>>>>>>>>>
>>>>>>>>> Hemza.
>>>>>>>>>
>>>>>>>>
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