This crushes on Win 7 with version 2015.03 module mirror(v){ children(); mirror(v)children(); } mirror([1,0,0])cube(); -- stempeldergeschichte@googlemail.com <karsten@rohrbach.de> P.S. Falls meine E-Mail kürzer ausfällt als Dir angenehm ist: Ich probiere gerade aus kurze Antworten statt gar keine Antworten zu schreiben. Wenn Du gerne mehr lesen möchtest, dann lass es mich bitte wissen. P.S. In case my e-mail is shorter than you enjoy: I am currently trying short replies instead of no replies at all. Please let me know, if you like to read more. Enjoy!

That is infinite recursion. Definitely invalid, but I'm not sure it should crash. > On 2 Apr 2015, at 10:11 pm, Peter Falke <stempeldergeschichte@googlemail.com> wrote: > > This crushes on Win 7 with version 2015.03 > > module mirror(v){ > children(); > mirror(v)children(); > } > > mirror([1,0,0])cube(); > > > -- > stempeldergeschichte@googlemail.com > > P.S. Falls meine E-Mail kürzer ausfällt als Dir angenehm ist: > Ich probiere gerade aus kurze Antworten statt gar keine Antworten zu schreiben. > Wenn Du gerne mehr lesen möchtest, dann lass es mich bitte wissen. > > P.S. In case my e-mail is shorter than you enjoy: > I am currently trying short replies instead of no replies at all. > Please let me know, if you like to read more. > > Enjoy! > _______________________________________________ > OpenSCAD mailing list > Discuss@lists.openscad.org > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org

module mirror_duplicate(v){
children();
mirror(v) children();
}

mirror_duplicate([1,0,0]) cube();

You redefine the predefined module mirror. What you want is probably this: module mirror_duplicate(v){ children(); mirror(v) children(); } mirror_duplicate([1,0,0]) cube(); Am 02.04.2015 um 13:41 schrieb Peter Falke: > This crushes on Win 7 with version 2015.03 > > module mirror(v){ > children(); > mirror(v)children(); > } > > mirror([1,0,0])cube(); **

What I want is: mirror(v,keep=true) But, I may not get it. ;) I posted it only, because it crashes and I think Kintel tries hard to fix OpenSCAD crashing at all. 2015-04-02 14:50 GMT+02:00 Martin Herdieckerhoff < Martin.Herdieckerhoff@mnet-mail.de>: > You redefine the predefined module mirror. > What you want is probably this: > > module mirror_duplicate(v){ > children(); > mirror(v) children(); > } > > mirror_duplicate([1,0,0]) cube(); > > > Am 02.04.2015 um 13:41 schrieb Peter Falke: > > This crushes on Win 7 with version 2015.03 > > module mirror(v){ > children(); > mirror(v)children(); > } > > mirror([1,0,0])cube(); > > > _______________________________________________ > OpenSCAD mailing list > Discuss@lists.openscad.org > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org > > -- stempeldergeschichte@googlemail.com <karsten@rohrbach.de> P.S. Falls meine E-Mail kürzer ausfällt als Dir angenehm ist: Ich probiere gerade aus kurze Antworten statt gar keine Antworten zu schreiben. Wenn Du gerne mehr lesen möchtest, dann lass es mich bitte wissen. P.S. In case my e-mail is shorter than you enjoy: I am currently trying short replies instead of no replies at all. Please let me know, if you like to read more. Enjoy!

Now, what I want, can be done in user space: redefining mirror, so to accept keep=true. I'm using multimarix to avoid a recursive definition. Using the reflection matrix: [image: \mathbf{A} = \begin{bmatrix} 1 - 2 a^2 & - 2 a b & - 2 a c \\ - 2 a b & 1 - 2 b^2 & - 2 b c \\ - 2 a c & - 2 b c & 1 - 2c^2 \end{bmatrix}] from: http://en.wikipedia.org/wiki/Transformation_matrix#Affine_transformations If it can be done in user space, this could be an argument not to include it into the core language. But I still think: it makes it easier for newbies and it makes cde easier to read and write if this is included into OpenSCAD. module mirror(v,keep=false){ if(keep)children(); u=v/norm(v); a=u.x; b=u.y; c=u.z; multmatrix(m = [ [1-2*a*a, -2*a*b, -2*a*c, 0], [-2*a*b,1-2*b*b, -2*b*c, 0], [-2*a*c, -2*b*c, 1-2*c*c, 0], [0, 0, 0, 1] ]) children(); } mirror([1,1,1],true)cube(1); 2015-04-02 15:32 GMT+02:00 Peter Falke <stempeldergeschichte@googlemail.com> : > What I want is: > > mirror(v,keep=true) > > But, I may not get it. ;) > > I posted it only, because it crashes and I think Kintel tries hard to fix > OpenSCAD crashing at all. > > 2015-04-02 14:50 GMT+02:00 Martin Herdieckerhoff < > Martin.Herdieckerhoff@mnet-mail.de>: > >> You redefine the predefined module mirror. >> What you want is probably this: >> >> module mirror_duplicate(v){ >> children(); >> mirror(v) children(); >> } >> >> mirror_duplicate([1,0,0]) cube(); >> >> >> Am 02.04.2015 um 13:41 schrieb Peter Falke: >> >> This crushes on Win 7 with version 2015.03 >> >> module mirror(v){ >> children(); >> mirror(v)children(); >> } >> >> mirror([1,0,0])cube(); >> >> >> _______________________________________________ >> OpenSCAD mailing list >> Discuss@lists.openscad.org >> http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org >> >> > > > -- > stempeldergeschichte@googlemail.com <karsten@rohrbach.de> > > P.S. Falls meine E-Mail kürzer ausfällt als Dir angenehm ist: > Ich probiere gerade aus kurze Antworten statt gar keine Antworten zu > schreiben. > Wenn Du gerne mehr lesen möchtest, dann lass es mich bitte wissen. > > P.S. In case my e-mail is shorter than you enjoy: > I am currently trying short replies instead of no replies at all. > Please let me know, if you like to read more. > > Enjoy! > -- stempeldergeschichte@googlemail.com <karsten@rohrbach.de> P.S. Falls meine E-Mail kürzer ausfällt als Dir angenehm ist: Ich probiere gerade aus kurze Antworten statt gar keine Antworten zu schreiben. Wenn Du gerne mehr lesen möchtest, dann lass es mich bitte wissen. P.S. In case my e-mail is shorter than you enjoy: I am currently trying short replies instead of no replies at all. Please let me know, if you like to read more. Enjoy!