On Fri, Aug 20, 2004 at 06:23:48PM +0200, IOhannes m zmoelnig wrote:

Lazzaro N. Ciccolella wrote:

...

I would want to convert a stream in the range from 0 (0.01 0.02 0.03 .. 0.99) to 1 (the x coords of a xv window) in a stream of numbers from 0 to 127.

how about [* 127] ? maths can be awesome...

Thanks but (apologize if I have too much simplified the question) what succeeds if I must convert one portion of that range ? example I would want to convert the range 0.20 - 0.60 in the range 0 - 127

in other word:

0.20 must become 0 and 0.60 must become 127

(I am making a patch that transforms whichever thing inside a pidip_canvas in one slider 0-127)

I have already made the subpatch (with the maths object :)) that make this trasformation but the patch becomes more and more large and I asked if were a pd object that let me to save cpu.

many thanks

Lazzaro

...

maths can be awesome...

I would want to convert the range 0.20 - 0.60 in the range 0 - 127

oh, oh, probably (sorry for being sarcastic, but) this can be done with maths too!

[- 0.2] | [* 317.5]

any other questions ?

mfg.as.dr IOhannes

PS: sure there are externals that can do this better. PPS: you can also use [.] (from zexy) to do the multiplication

On Friday 20 August 2004 18:18, Lazzaro N. Ciccolella wrote:

yes,

it is wery wery fast (sure faster than a lib) but how I can make it automaticaly ? how calculates the two numbers ?

many thanks

You want to map a range of 0.5 length f.i. starting at 0.1 to another range starting at 0 or any other number. You do that by

subtract the smallest number (so that is mapped to zero) 2) multiply by the desired-range/input-range (i.e.) biggest number - smallest number) 3)if necessary add the new lower bound.

so 0.1-0.5 mapped to 20-500 goes like so:

• 0.1

• (480/0.4) = 1200

• 20

G

This seems to be a very popular question...

#N canvas 435 305 484 374 12; #X obj 123 29 nbx 5 14 0 100 0 0 empty empty empty 0 -6 0 10 -262144 -1 -1 38 256; #X obj 123 52 / 100; #X floatatom 123 82 5 0 0 0 - - -; #X text 183 29 (0-100); #X text 172 83 (0-1); #X floatatom 123 334 5 0 0 0 - - -; #X floatatom 216 152 5 0 0 0 Minimum - -; #X obj 123 176 expr ($f1-$f2)/($f3-$f2); #X floatatom 353 152 5 0 0 0 Maximum - -; #X obj 123 212 clip 0 1; #X text 64 111 -------------------------; #X obj 307 81 loadbang; #X msg 294 111 0.2; #X msg 353 111 0.6; #X obj 123 276 * 127; #X text 172 273 New range; #X connect 0 0 1 0; #X connect 1 0 2 0; #X connect 2 0 7 0; #X connect 6 0 7 1; #X connect 7 0 9 0; #X connect 8 0 7 2; #X connect 9 0 14 0; #X connect 11 0 12 0; #X connect 11 0 13 0; #X connect 12 0 6 0; #X connect 13 0 8 0; #X connect 14 0 5 0;

----- Original Message ----- From: "Lazzaro N. Ciccolella" ciccolix@tiscalinet.it To: pd-list@iem.at Sent: Friday, August 20, 2004 12:55 PM Subject: Re: [PD] range of numbers

On Fri, Aug 20, 2004 at 06:23:48PM +0200, IOhannes m zmoelnig wrote:

...

Lazzaro N. Ciccolella wrote:

...

I would want to convert a stream in the range from 0 (0.01 0.02 0.03 .. 0.99) to 1 (the x coords of a xv window) in a stream of numbers from 0 to 127.

how about [* 127] ? maths can be awesome...

Thanks but (apologize if I have too much simplified the question) what succeeds if I must convert one portion of that range ? example I would want to convert the range 0.20 - 0.60 in the range 0 - 127

in other word:

0.20 must become 0 and 0.60 must become 127

(I am making a patch that transforms whichever thing inside a pidip_canvas in one slider 0-127)

I have already made the subpatch (with the maths object :)) that make this

trasformation

but the patch becomes more and more large and I asked if were a pd object that

let me to save cpu.

many thanks

Lazzaro

---

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On Fri, Aug 20, 2004 at 07:34:23PM +0300, Sami Nybacka wrote:

At least "scale" by Olaf Matthes does this. I found it from pd-externals package from:

http://pure-data.sourceforge.net/

-- Sami Nybacka

Hi, many thanks it is exactly that one of which I have need.

Building the lib I had some errors regarding the net* stuff.

(for being able to use immediately the object that I need I am edited the makefile and the maxlib.c so I have now the scale and many other beautiful objects)

but if someone can help me I would want to compile all.
appended there are the errors.

thanks

Lazzaro

cc -DPD -DMAXLIB -DUNIX -O2 -funroll-loops -fomit-frame-pointer -Wall -W -Wshadow -Wno-unused -Wno-parentheses -Wno-switch -I/usr/include -I./include -c src/netclient.c src/netclient.c:30:21: s_stuff.h: No such file or directory src/netclient.c:32:19: m_imp.h: No such file or directory src/netclient.c: In function netclient_tick': src/netclient.c:89: warning: implicit declaration of functionsys_addpollfn' src/netclient.c:89: error: t_fdpollfn' undeclared (first use in this function) src/netclient.c:89: error: (Each undeclared identifier is reported only once src/netclient.c:89: error: for each function it appears in.) src/netclient.c:89: error: parse error before "netclient_rcv" src/netclient.c: In functionnetclient_child_connect': src/netclient.c:112: warning: implicit declaration of function sys_sockerror' src/netclient.c:133: warning: implicit declaration of functionsys_closesocket' src/netclient.c: In function netclient_disconnect': src/netclient.c:162: warning: implicit declaration of functionsys_rmpollfn' make: *** [maxlib.pd_linux] Error 1

Hallo, Frank Barknecht hat gesagt: // Frank Barknecht wrote:

I would recommend you go to the externals/build/YOU_OS directory, and build the externals as single externals there.

... that is, if you used the CVS checkout.

Ciao

Frank Barknecht _ ______footils.org__