The knife tool doesnt work???

Does anybody know why the knife tool (see here) is not able to cut the MakeHuman head mesh at its mirror axis (plane) and produces an error? Why is it still relying on NMesh methods?!?!?

is this the plane knife ?

is that one worlking on 2.49?

i have the french version and it works fine !

Salutations

Try to cut the MakeHuman head mesh (it is NOT connected to the body mesh after importing)… Which ever Blender… 2.46, 2.48, 2.49 :eek:

make human use special technic to make their models

is the head part of a group

i think knife want work if it is in a group or part of a subsurf

so may be should copy then remove all subsurf and group then try it!

the head also has heavy UV usage so not cetain if you cut it what’s is gong to do to the UV mapping ?

Salutations

The knife tool just gives an error saying faces should be with > 2 verts => it receives at a moment potential faces with 2 verts (or less)… which is a bug that does NOT have anything in common with the mesh to cut but with knife’s algorithm, I think…

are you talking about the knife tool inside blender

or the plane knife script to cut an object in 2 with a plane here!

if it is the knife tool in blender sorry cannot help you on that one

ny knife tool is not worlking because of a bug in the vid driver i have for the graphci card i have intel chipset

so i cannot use the knife tool on my blender!

thanks

Sorry, just duplicated postings - just read the NEXT one :wink:

I think my first posting was very nice explained but - OK - here it is again in more details:

I have my critics to MakeHuman (MH) program (software) and in order to confirm them I wanna play with MH-produced meshes. OR to learn from MH, too!!! Sooo… I need to play with MH-produced mesh… To do this, I need to import MH-produced obj file into Blender and it is OK :wink: Then - for modifying something on the head and have it reflected on the other part, I need to use only 1/2 of the MH-mesh, right? Sooo… I need to “cut” one half of the mesh and apply the mirror modifier to the remaining part… Right? :wink:

MakeHuman is a well-known software and everyone can make my experiment. Just export from MakeHuman the default body, without any modifications and import the obj file into blender. Then look only at the head… Sooo… cutting setup looks like this:

http://www.mediafire.com/imgbnc.php/b1505d77451830c43c0a08093d5726f76g.jpg

I am using the knife tool given at Blender site here

I also want to achieve, for example, the following:

http://www.mediafire.com/imgbnc.php/fb4dc69c846c96fbbcaca4d2460dfe136g.jpg

I’ve done the above cutting manually… And using the knife tool gives me an error message as follows:

http://www.mediafire.com/imgbnc.php/a4e93b11a64938f842f712f00e6b83e66g.jpg

And I wonder why?? And how to avoid THIS, if it is possible… :eek:

THat’s what I am talking about…

Regards,

Why are you using the knife tool? Why not in edit mode delete half of the vertices. If the knife tool is doing what you want but raising an error. So what? If you get the outcome you want.

I’ve tried MakeHuman 0.9.1RC1 (latest version for OSX) without a problem.

Richard

i e mail you a pic of what i did

and seem to work fine with the cut plane for me at leat

nor probelmo at all see the pic in e mail

now don’t see where the problem is with the cut plane?

may be you don’t ahve the right version

i did not get any error at all it works fine on my Pc!

bu as i said last year i tried the cut plane in wiki and it did not work
so i got the version from france at zooblender that version works well

so not certain here !

anyway let us know if yo still having problem !

Thanks

I reported the problem on 26.JUNE… I first experienced it on the same day and, just to be sure, I downloaded again the knife tool from Blender.org site => I am speaking about the current and “official” version of that script. Period.

Everything here - just for your info…

Regards,

i think as i said that i downloaded it last year and i had problem with it and
no one listen to me

and then i found the proper cut knife version at zooblender inf France
and that oe is owrking

so if yuou need a copy i;ll sent i to you no problemo
let me know!

did you sent a message to Meta Androco
he’s in charge now for the scripts at wiki?

Thanks

No, not yet :wink:

I think I’d rather re-write the script… I have the idea to make it cut using not only a single plane but a more complicated figure (contour). At a second stage - I’d like to make a script for 3D cut, i.e. something like currect boolean operations incorporated in Bleder at present but the boolean operations NOT ALWAYS give a nice result, nice cut-out :wink: I think it is possible to have this improved :wink:

I dont when I’ll do that - it is a matter of some extra free time :spin:

some answers, not the ones you may want, are here:
http://blenderartists.org/forum/showthread.php?t=113247
i’ll look into finding if there is a good cutting tool, like this one.
https://svn.blender.org/svnroot/bf-scripts/trunk/scripts/knife.py

@ Meta-Androcto - thanks for the script links. I tried exactly the same script (ver. 0.0.8). I tried yours (from the link you suppled) and the result at the console was:

Compiled with Python version 2.5.
Checking for installed Python... got it!
mesh(es) cut in 0.00453362317785 seconds
Traceback (most recent call last):
  File "Text", line 696, in bevent
  File "Text", line 604, in CutMesh
RuntimeError: faces must have at 3 or 4 vertices

You may try this yourself - here is a testing blend… :wink:

I thought the incorporated knife in Blender (pressing K in edit mode) is able to cut the figure, not only cut the edges. Any more info on that will be appreciated!

Regards,

why not use the one i’m using the french site Zooblender knife tool

since i have this one i never had any problems with it

it works fine

here the beginning of the script is it the same

#############################################################

Blender Knife Tool

© December 2002 Stefano <S68> Selleri

Released under the Blender Artistic Licence (BAL)

See www.blender.org

#############################################################

History

V: 0.0.0 - 08-12-02 - The script starts to take shape, an

history is now deserved :slight_smile:

0.0.1 - 09-12-02 - The faces are correctly selected and#

assigned to the relevant objects

now the hard (splitting) part…

0.0.2 - 14-12-02 - Still hacking on the splitting…

It works, but I have to de-globalize#

the intersection coordinates

0.0.3 - 15-12-02 - First Alpha version

0.0.4 - 17-12-02 - Upgraded accordingly to eeshlo tips

Use Matrices for coordinate transf.

Add a GUI

Make it Run on 2.23

0.0.5 - 17-12-02 - Eeshlo solved some problems…

Theeth too adviced me

0.0.6 - 18-12-02 - Better error messages

#############################################################

that;s the one i use and it works really well!

if you need the whole thing let me know!

Happy blendering

Ricky,
sure, I’ll give it a go.

Abidos, the problem here is that the split plane is very slightly in the wrong position.
moving the split plane very slightly & the mesh splits fine.
I would say that you found a limitation within the script where it cannot split edges aligned exactly to the split plane.

sorry

got a problem here cause the text is too long > 10,000 words

i did not know there was such a limit here !

i’ll load a file and come back with url

ok here is the file with script sorry it was too long

http://cid-348ad7d85dee0c79.skydrive.live.com/self.aspx/.Public/Frecnhknife1.blend

just get rid of objects you don’t need
but this knife work well so enjoy it

unless you find other problems with it !!

but i used it several times last year and never had any error or prolbems with this one!

Thanks

Thanks Ricky.
Did you know that script is 5 years old?
The one I posted is 3 years old & an updated version of the script you posted.
By the same author. s68, updated by Wim Van Hoydonck.
With more functionality.

ok i’ll test your newer improved version

but last year when i searched it was the only one working !
the one on wiki did not work last year !

and it’s 3 year old ?

how come it did not work last year ?

but i’ll test it tomorrow

Thanks