We also added Std.ftoi(x) to the language a while back (at 1.3.2.0). It’s much clearer to read, and more obvious as to what’s going on and why, than the casting notation. To round, just add 0.5 to x in the function arg.
so: > Std.ftoi(0.4*myBuf.samples()+0.5) => myBuf.pos; would set your play pointer to the 40% point in the sound buffer. Prc Sent from my iPhone > 1. Conversion float to int using SndBuf (M?che?l ? Cath?in) > > 40.0 => float pctPosInit; > pctPosInit/100*myBuf.samples() => myBuf.pos; > > > This throws the error argument types don't match. > I'm not seeing how to convert the float to an int here. > Thanks for your help! > > Micheal > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://lists.cs.princeton.edu/pipermail/chuck-users/attachments/20200121/6b83ba90/attachment-0001.html> > > ------------------------------ > > Message: 2 > Date: Tue, 21 Jan 2020 09:35:12 -0600 > From: Michael Heuer <heue...@gmail.com> > To: ChucK Users Mailing List <chuck-users@lists.cs.princeton.edu> > Subject: Re: [chuck-users] Conversion float to int using SndBuf > Message-ID: <20797eb6-c4bc-4d00-91b9-b9d4e6568...@gmail.com> > Content-Type: text/plain; charset=utf-8 > > Hello M?che?l, > > The ChucK language has a cast operator '$' which might come in handy in this > situation > > (pctPosInit/100*myBuf.samples()) $ int => myBuf.pos; > > Cheers, > > michael > > >> On Jan 21, 2020, at 7:08 AM, M?che?l ? Cath?in <micheal.ocath...@gmail.com> >> wrote: >> >> Hi >> What is the best way to convert a float to int in the following please? >> >> //I want to set myBuf.pos to a percentage of myBuf.samples()... >> //Start playing at say 40% through the total number of samples. >> >> 40.0 => float pctPosInit; >> pctPosInit/100*myBuf.samples() => myBuf.pos; >> >> >> This throws the error argument types don't match. >> I'm not seeing how to convert the float to an int here. >> Thanks for your help! >> >> Micheal >> _______________________________________________ >> chuck-users mailing list >> chuck-users@lists.cs.princeton.edu >> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users > > > > ------------------------------ > > Message: 3 > Date: Tue, 21 Jan 2020 16:47:40 +0100 > From: ermina <erm...@studioplume.com> > To: chuck-users@lists.cs.princeton.edu > Subject: Re: [chuck-users] Conversion float to int using SndBuf > Message-ID: <bc93ce0d-c4bd-0616-2f3c-15562f9ff...@studioplume.com> > Content-Type: text/plain; charset=utf-8; format=flowed > > Hi, > > to convert a float to an int, > you need to explicitly cast the value with > 4.8 $ int => int foo; // foo == 4 > (as written here: https://chuck.cs.princeton.edu/doc/language/oper.html) > > So you would do something like > pctPosInit $ int => int pctPosInitInt > pctPosInitInt/100*myBuf.samples() => myBuf.pos; > > . e >> On 01/21/2020 02:08 PM, M?che?l ? Cath?in wrote: >> Hi >> What is the best way to convert a float to int in the following please? >> >> //I want to set myBuf.pos to a percentage of myBuf.samples()... >> //Start playing at say 40% through the total number of samples. >> >> 40.0 => float pctPosInit; >> pctPosInit/100*myBuf.samples() => myBuf.pos; >> >> >> This throws the error argument types don't match. >> I'm not seeing how to convert the float to an int here. >> Thanks for your help! >> >> Micheal >> >> >> _______________________________________________ >> chuck-users mailing list >> chuck-users@lists.cs.princeton.edu >> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users >> > > > ------------------------------ > > Message: 4 > Date: Tue, 21 Jan 2020 12:58:36 -0300 > From: Jean Menezes da Rocha <j...@menezesdarocha.info> > To: ChucK Users Mailing List <chuck-users@lists.cs.princeton.edu> > Subject: Re: [chuck-users] Conversion float to int using SndBuf > Message-ID: > <CALRb6hJimYGzoV7tChQ=ugg5uvftkqnrrd3umn8nselpn0j...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > I would suggest that you call Math.round() before casting, as to prevent > undesirable effects: notice that in the example sent by ermina, 4.8 rounds > down to 4 when cast to int, which could cause miscalculations *depending on > your use case*. > The previous example would look something like this if we used Math.round(): > > Math.round(pctPosInit) $ int => int pctPosInitInt; > pctPosInitInt/100*myBuf.samples() => myBuf.pos; > > Best regards! > >> On Tue, Jan 21, 2020 at 12:49 PM ermina <erm...@studioplume.com> wrote: >> >> Hi, >> >> to convert a float to an int, >> you need to explicitly cast the value with >> 4.8 $ int => int foo; // foo == 4 >> (as written here: https://chuck.cs.princeton.edu/doc/language/oper.html) >> >> So you would do something like >> pctPosInit $ int => int pctPosInitInt >> pctPosInitInt/100*myBuf.samples() => myBuf.pos; >> >> . e >>> On 01/21/2020 02:08 PM, M?che?l ? Cath?in wrote: >>> Hi >>> What is the best way to convert a float to int in the following please? >>> >>> //I want to set myBuf.pos to a percentage of myBuf.samples()... >>> //Start playing at say 40% through the total number of samples. >>> >>> 40.0 => float pctPosInit; >>> pctPosInit/100*myBuf.samples() => myBuf.pos; >>> >>> >>> This throws the error argument types don't match. >>> I'm not seeing how to convert the float to an int here. >>> Thanks for your help! >>> >>> Micheal >>> >>> >>> _______________________________________________ >>> chuck-users mailing list >>> chuck-users@lists.cs.princeton.edu >>> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users >>> >> _______________________________________________ >> chuck-users mailing list >> chuck-users@lists.cs.princeton.edu >> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users >> > > > -- > Jean Menezes da Rocha > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://lists.cs.princeton.edu/pipermail/chuck-users/attachments/20200121/b08c368e/attachment-0001.html> > > ------------------------------ > > _______________________________________________ > chuck-users mailing list > chuck-users@lists.cs.princeton.edu > https://lists.cs.princeton.edu/mailman/listinfo/chuck-users > > > End of chuck-users Digest, Vol 173, Issue 10 > ******************************************** _______________________________________________ chuck-users mailing list chuck-users@lists.cs.princeton.edu https://lists.cs.princeton.edu/mailman/listinfo/chuck-users
