I've had the 6-digit problem trying to print UTM position coordinates out of Pd.
If you know the range of your numbers, there are some ugly hacks that provide a limited solution. Eg, for 1234.5678 you can pass the number through [int] and then subtract that from the original number to get the parts before and after the decimal, then print them separately and use external scripts to concatenate - or maybe you could convert them to symbols and concatenate in Pd before printing. You could do similar things using [mod] for numbers above 1e+06, etc... Nick On Nov 7, 2008, at 10:08 AM, Roman Haefeli wrote: > On Fri, 2008-11-07 at 09:45 +0100, IOhannes m zmoelnig wrote: >> Mark Sexton wrote: >>> Hi >>> I need PD to make simple but accurate calculations for a >>> sonification project. However there seems to be a problem working >>> accurately with floats that have 7 or more digits in total (before >>> or after the decimal point). PD always seem to round the figure to >>> 6 digits whether in a calculation, or even typing a 7+ digit float >>> into a number box e.g. 1234.5678 rounded to 1234.57 >>> >>> I've got a couple of ugly hacks to work around for now, but it >>> seems a fairly fundamental thing to do, so would be grateful to >>> hear if I'm missing a simple way to get PD to work accurately with >>> floats of any arbitrary length above 6 digits. >>> >> >> you don't need anything. >> Pd does uses IEEE floating point values for numbers, you don't >> loose a >> single bit. >> it's only the GUI that likes to round the numbers when displaying it. >> internally everything is "correct" (as far as it is possible using >> single precision floats) >> >> you could change the "width" of a number-box to see more digits. > > still only 6 digits are displayed. altough pd works internall with > IEEE > 32bit floating values, i couldn't think of an easy way to get them out > of pd. both, print and the numberbox truncate the numbers. > > two ways - not very feasible, though - to get full precision out of pd > come to my mind: > > - send the numbers over OSC to some other application > - write the numbers to an audio file with 32bit bitlength. extract the > numbers from there > > or has someone a better idea? > > roman > > > > > ___________________________________________________________ > Der frühe Vogel fängt den Wurm. Hier gelangen Sie zum neuen Yahoo! > Mail: http://mail.yahoo.de > > > _______________________________________________ > [email protected] mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list _______________________________________________ [email protected] mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
