In this post, you can download a pack of 3 patchs.
One of them called object builder dynamicaly generates the function of an expr~. From that you can do it for an expr.

https://forum.pdpatchrepo.info/topic/13773/simple-physical-modeling-equations/6

A modal synthesizer

10-modes.pd

Three new patches. How to make more complex objects.

ModelPhysique2 2.zip

I've made an exemple in this topic.

The site is no longer hosted but the code was still valide last year.

Three patches that implement some basic physical modeling with expr and fexpr~.

The explanations I wrote about the calcul are not exact. The V term does not mean speed but is the sum of the forces on an axis.

Ammortis.zip

A broken tuto about data structures :

TutoDatastruct.pd

Data structures always. The first, the blue one, is the result of a stack overflow..

Generative font using Data structures

Here is the patch:

police_generative.pd

Type in the screen window using the keyboard. Press escape to erase.
I've made only a few letters so far, a,e,i,o,l,n,s,r,c,t,f, but I'm gonna go for a patch organized in a totaly different way.

Ok nice.
An update with sync stream.

I think also 250 is a start sync message and 252 is a sync stop message but I could not verify.

Hello,
Here is a quick reminder on how to generate raw midi in order to use the midiout object.

A question: is there another way to work with multiple midi ports, or is midiout the only one, pd vanilla.

bye

RawMidiBase.pd

Hello

If you want to add inputs to the patch, you can use Html buttons and the function "onclick".
Something like that:

<button onclick="pd.send ( ' receive01 ' , ' 1 ' )"> 1 <button>
<button onclick="pd.send ( 'receive01 ' , ' 2 ' )"> 2 <button>
<button onclick="pd.send ( 'receive01' , ' 3 ' )"> 3 <button>

Maybe the syntaxe is not exact. See there for more info.

Well done.

Raffaella de Laurentiis - Cre-o leonis Il pleut

All images made in pure data. Editing in Shotcut

Stranger - Cre-o leonis il pleut

Font Keigo Hara.

And another one

Another design.

@EEight , why did you pinned it in "Output~" ?

Dans cette vidéo je montre comment utiliser conjointement pure data et un synté analogique modulaire.

And there the simpliest webpd site I could come up with.

Link :
http://leonisaircraft.go.yj.fr/

The site full code :
Site.zip

You can use it for yourself. Put your image and your patch and your done.

Take some time to read the step-by-step guide nonetheless, it will help you greatly.

By defining areas on the image, you can, in conjonction with onclick and Pd.send() function, create an interactive patch. Note that, not only images, but any part of the site, can be made interactive.

Don't forget that webpd doesn"t feature all pure data objects, only a (large) selection. If your patch doesn't behave as expected, check the list of objects.

Works fine on firefox and safari, and on my cellphone "internet" browser. But not for Chrome who wants a user gesture. Very nice but it means someone will have to put some kind of button for chrome. Thank you @EEight . And Chrome is by far the most popular browser nowaday.