Hi! Is there a 'trunc' function in OpenSCAD? (I can't find one) Or any other simple way to retrieve just the integer part of the result of a division? -- Sent from: http://forum.openscad.org/

Openscad has floor, round, and ceil. Depends on which you want On Mon, 15 Jun 2020, 19:31 Gadgetman!, <trygve@totallytrygve.com> wrote: > Hi! > > Is there a 'trunc' function in OpenSCAD? > (I can't find one) > Or any other simple way to retrieve just the integer part of the result of > a > division? > > > > > > -- > Sent from: http://forum.openscad.org/ > > _______________________________________________ > OpenSCAD mailing list > Discuss@lists.openscad.org > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org >

*function trunc(x=0) = ( x > 0 ? floor (x) : ceil(x) );*

CEIL rounds up, FLOOR rounds down, ROUND goes to the closet integer .... none of which is a TRUNC function. OpenSCAD does not have a trunc function, but it is easy to make one: *function trunc(x=0) = ( x > 0 ? floor (x) : ceil(x) );* Then call it like: echo (trunc(4.3)); Given inputs of: x = -4.9, -4.5, -4.1, 0.232, 5.1, 5.5, 5.9 TRUNC: -4, -4, -4, 0, 5, 5, 5 CEIL: -4, -4, -4, 1, 6, 6, 6 ROUND: -5, -5, -4, 0, 5, 6, 6 FLOOR: -5, -5, -5, 0, 5, 5, 5 -- Sent from: http://forum.openscad.org/

 *function trunc(x=0) = ( x > 0 ? floor (x) : ceil(x) );*

or including decimal numbers: function trunc(x,dec) = x > 0 ? floor(x * pow(10,dec)) / pow(10,dec) : ceil(x*pow(10,dec)) / pow(10,dec); echo(trunc(9.875311,2)); echo(trunc(-9.875311,1)); // ECHO: 9.87 // ECHO: -9.8 Am Di., 16. Juni 2020 um 05:49 Uhr schrieb shadowwynd <shadowwynd@gmail.com >: > CEIL rounds up, FLOOR rounds down, ROUND goes to the closet integer .... > none > of which is a TRUNC function. OpenSCAD does not have a trunc function, but > it is easy to make one: > > *function trunc(x=0) = ( x > 0 ? floor (x) : ceil(x) );* > > Then call it like: echo (trunc(4.3)); > > Given inputs of: > x = -4.9, -4.5, -4.1, 0.232, 5.1, 5.5, 5.9 > > TRUNC: -4, -4, -4, 0, 5, 5, 5 > > CEIL: -4, -4, -4, 1, 6, 6, 6 > ROUND: -5, -5, -4, 0, 5, 6, 6 > FLOOR: -5, -5, -5, 0, 5, 5, 5 > > > > > > -- > Sent from: http://forum.openscad.org/ > > _______________________________________________ > OpenSCAD mailing list > Discuss@lists.openscad.org > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org >

Hello I use the 'abs' command best regards Sven > Am 16.06.2020 um 01:30 schrieb Gadgetman! <trygve@totallytrygve.com>: > > Hi! > > Is there a 'trunc' function in OpenSCAD? > (I can't find one) > Or any other simple way to retrieve just the integer part of the result of a > division? > > > > > > -- > Sent from: http://forum.openscad.org/ > > _______________________________________________ > OpenSCAD mailing list > Discuss@lists.openscad.org > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org

Something like: function trunc(x) = sign(x) *floor(abs(x)) ; On Tue, 16 Jun 2020, 07:59 Sven Sylla, <sven.sylla@freenet.de> wrote: > Hello I use the 'abs' command > > best regards Sven > > > Am 16.06.2020 um 01:30 schrieb Gadgetman! <trygve@totallytrygve.com>: > > > > Hi! > > > > Is there a 'trunc' function in OpenSCAD? > > (I can't find one) > > Or any other simple way to retrieve just the integer part of the result > of a > > division? > > > > > > > > > > > > -- > > Sent from: http://forum.openscad.org/ > > > > _______________________________________________ > > OpenSCAD mailing list > > Discuss@lists.openscad.org > > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org > > > _______________________________________________ > OpenSCAD mailing list > Discuss@lists.openscad.org > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org >