[Plugin] Quadrilateralizer v1.1 20110215

[TIG]

---

TIG (c) 2011
All Rights Reserved.
THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES,INCLUDING,WITHOUT LIMITATION,THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

---

Script: Quadrilateralizer.rb

---

Usage:
Select faces. Note that other entity-types in the selection are ignored.
Run 'Quadrilateralizer' from the 'Plugins' menu.
If there are no faces in the selection there is an error-message, it exits.
If all selected faces are already quads then you are asked if you want to
split them further: 'Yes' to redivide selected quad faces or No' to abort.
If the selected faces are not equivalent to 'all connected faces' then you
are warned: 'Yes' to continue, 'No' to abort. It is recommended that all
connected faces are processed together [treble-click a face to select all]
to ensure that all connected faces become quadrilaterals; otherwise later
processing of these non-quad faces could result in the connected quads
being made into non-quads, or if all connected faces were selected the
non-quads would split but the previously made quads will be split again -
it could get messy - this might be what is required... but usually
processing all connected at once is the best method.
All selected faces are now split into quadrilaterals ['quads'].
Note that any preexisting quads in the selection will also be split
because splitting any adjacent non-quads will force these existing quads
into non-quads anyway.
UV texture mapping etc is kept.
It is one step undo-able.
The vertices of these quad faces can be adjusted with the Move tool...

---

Donations: By PayPal.com to info @ revitrev.org

---

Version:
1.0 20110214 First Release.
1.1 20110215 More info and percentage progress reported in Status Bar.

---

Quadrilateralizer.rb

[Gaieus]

OK, first to download so first to thank. I know why Pete asked for it...

Will it move vertices slightly to create quads from non co-planar tris for instance (or does it only subdivide)?

[solo]

Sweet!! cannot wait to give it a run.

Thanks a bunch.

[Gaieus]

Some quads are created from tris in a way that they have co-linear edges. This may not be an issue in many apps but SDS2's smooth tool cannot handle these, Pete.

TIG: still great tool, thanks!

[TIG]

Some quads are created from tris in a way that they have co-linear edges. This may not be an issue in many apps but SDS2's smooth tool cannot handle these, Pete.
TIG: still great tool, thanks!

Most quads will not have co-linear sides [although thin slivers of triangles do approach co-linearity] - but those that do you can manually Move a vertex as desired.
The subdivision can produce unoptimized quads anyway that would benefit from some adjustments to some vertex locations...

This is only v1.0, I only starting thinking about writing it a couple of hours ago

Any feedback or suggestions on improvements welcomed...

[chloesdad]

Thank you very much TIG.

[TIG]

I can envisage another tool to optimize selected coplanar quads...
It tests a faces for their vertices' 'concave-ness'/co-linearity and adjusts the concave/linear vertex location until it is just convex... I suspect this might involve a lot of tail-chasing as one faces concave vertex could be its neighbor's convex vertex

Alternatively if any of the Quadrilateralized faces have co-linear or concave vertices select all and Quadrilateralize them a second time - that should fix them - although the mesh will then be much finer BUT there's no such thing as as a free lunch...

Capture.PNG

[CAntonis]

Thanks so much TIG!
One question though: Is this gonna help exporting a model to other modelers with greater detail, is it just because quad faced geometry is better or both?
Downloaded already and I ll be checking for updates!!!!
Again THANKS A BOUNCH!

[Didier Bur]

Hi TIG,

When translating into french, I came across this (line 82):

Code: Select all

return nil if UI.messagebox("Quadrilateralizer:\n\nThe Selected Faces are NOT\nALL of the Connected Faces.\nDo you want to Continue ?",MB_YESNO)==7

Isn't this message confusing or wrong ?

[TIG]

Hi TIG,

When translating into french, I came across this (line 82):

Code: Select all

return nil if UI.messagebox("Quadrilateralizer:\n\nThe Selected Faces are NOT\nALL of the Connected Faces.\nDo you want to Continue ?",MB_YESNO)==7

Isn't this message confusing or wrong ?

The selected-faces are not ALL of the connected-faces.
Do you want to continue?

Les choisir-faces ne sont pas tous les relier-faces.
Voulez-vous continuer ?

[Didier Bur]

Les faces choisies ne font PAS TOUTES partie des faces connectées

[TIG]

Les faces choisies ne font PAS TOUTES partie des faces connectées

I couldn't have put it better myself!
Je n'aurais pas pu mieux dire moi-même!

[Krisidious]

you Rock Tig...

[Ben Ritter]

TIG, thank you.

[EarthMover]

Thanks bro!

[Rich O Brien]

Thanks TIG....any chance of a progress bar?

[TIG]

Here's v1.1 viewtopic.php?p=309120#p309120
More info and percentage progress now reported in the Status Bar.

[Rich O Brien]

That was quick

[TIG]

Sorry it took so long I was at the corner-shop buying some milk when you posted

[Rich O Brien]

Now that you're around and idle, how about this

[Gaieus]

Thanks TIG. The more I think about this plugin, the more I like it. It can have so many areas to use.

[dedmin]

Sorry it took so long I was at the corner-shop buying some milk when you posted

So, if I drink more milk maybe I can start writing wonderful plugins as You do?

[Gaieus]

Or eat more cookies (look at ThomThom).
Maybe both - but if you drink more beer, you will grow a red beard like Rich has (or a belly like me).

[dedmin]

Or eat more cookies (look at ThomThom).
Maybe both - but if you drink more beer, you will grow a red beard like Rich has (or a belly like me).

[troyhome]

thanks for this great plug!

[TIG]

This new tool QuadsFrom2Tris viewtopic.php?p=315130#p315130 might help fix a few connected triangles into quads... rather than affect every preexisting quad in a surface by re-quadding it...

[bagou01]

i'm sorry i'm a bit of a noob here, but i can't manage to get anything else then SU crashes with quadrilateralizer...
i tried on a simple face as well as on a complicated one, no way to have it done by my side :-/