Pd-list November 2005

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143 participants
298 discussions

pd font finetuning with tk scaling ?
by Andre Schmidt 30 Nov '05

30 Nov '05

hi, started to experiment with fonts under tk, and while reading the tk manual, i found this: http://www.tcl.tk/man/tcl8.5/TkCmd/tk.htm#M7 "tk scaling ?-displayof window? ?number? Sets and queries the current scaling factor used by Tk to convert between physical units (for example, points, inches, or millimeters) and pixels. The number argument is a floating point number that specifies the number of pixels per point on window's display. If the window argument is omitted, it defaults to the main window. If the number argument is omitted, the current value of the scaling factor is returned. A ``point'' is a unit of measurement equal to 1/72 inch. A scaling factor of 1.0 corresponds to 1 pixel per point, which is equivalent to a standard 72 dpi monitor. A scaling factor of 1.25 would mean 1.25 pixels per point, which is the setting for a 90 dpi monitor; setting the scaling factor to 1.25 on a 72 dpi monitor would cause everything in the application to be displayed 1.25 times as large as normal. The initial value for the scaling factor is set when the application starts, based on properties of the installed monitor, but it can be changed at any time. Measurements made after the scaling factor is changed will use the new scaling factor, but it is undefined whether existing widgets will resize themselves dynamically to accomodate the new scaling factor." wouldnt this mean that we could do pixel accurate, measurements and finetuning (calibration) on the client to get the desired font size ? i made a test and added "tk scaling 1.5" in the beginning of "pd.tk" made a test pacth with all gui objects having font size 10... but it seems to affect only labels, and nmb2 : http://osku.de/allgui.png well, didnt find out how to get it work with the other gui stuff (and im tired), so i desided to ask before i continue my... quest :) font agent ;) andre "oskude" schmidt ps. attached is that allgui.pd pss. pd is devel 0.39-1test1

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Gem, speed of video
by Thomas Ouellet Fredericks 30 Nov '05

30 Nov '05

Does using [auto $1< to play a video file with pix_film take less CPU than a counter that increments with every render? Thanks Tom

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Re: scrolllist 0.1
by Chris McCormick 30 Nov '05

30 Nov '05

On Tue, Nov 29, 2005 at 09:56:37PM +0100, pd-list-request(a)iem.at wrote: > > Message: 2 > Date: Tue, 29 Nov 2005 19:24:18 +0100 > From: ydegoyon(a)free.fr > Subject: Re: [PD] scrolllist 0.1 > To: pd-list(a)iem.at > Message-ID: <1133288658.438c9cd24cc41(a)imp2-g19.free.fr> > Content-Type: text/plain; charset=ISO-8859-1 > > > Thomas Ouellet Fredericks wrote: > > > Di you test it with an non empty scrolllist? > > > > > yes, i did... > in fact, i make object that seems to compile on windows > and then crash and install some trojan in your machine, > so please don't use then on windows ) Hurrah for freedom! Chris. ------------------- chris(a)mccormick.cx http://mccormick.cx

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Radeon 9800 for mac
by Pat Pagano 30 Nov '05

30 Nov '05

Hi just got a radon 9800 for my desktop and was wondering if anyone else is using one for pd/GEM/pidip/PixelTango/gridflow..etc.. Seems to work pretty well though i wish i could set the buffers manually. pretty zippy so far. pat

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true-type-font versus bitmap-font
by Andre Schmidt 30 Nov '05

30 Nov '05

i dont really know if tk uses ttf or bitmap fonts, nor can i find info on how to tell tk to use ttf or bitmap fonts exclusively... (well i know that i use bitmap font if i use a font name that only exists as bitmap font) and is it just me that thinks using only bitmap font(s) would solve our problems ? (or are we allready, just the bitmap fonts are scaled or/and are different sizes on different os) like, a 10pixels height bitmap font would(should) be 10pixels height on any os or screen resolution (were not supposed to scale bitmap fonts) so no need to calculate sizes cause we have "predefinied" (pixel)bitmap font sizes... i remember even miller being interested on a custom "pd-font", but didnt like (and i dont like too) about installing fonts to the client system... i come to these "solutions": 1. leave it as it is (using system courier, ttf or bitmap) and try to "hack" the size to be exact as possible on all os/screenres 2. we do(/use) custom bitmap fonts and install them on all os 3. somehow embedd bitmap fonts in tk/pd the "best" would be number 3. but i havent found anything about "embedding" fonts in tk apps (well, i assume we would need another font renderer than the system uses = way more work ?) so, my vote would go to 2. cheers andre ps. as the topic says, i would still like to hear why we should use ttf fonts in pd... well, for big sizes ttf would be ok (if they are not used in reference/docs/tuts and so on...)

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PDDP all about template sketch
by Hans-Christoph Steiner 30 Nov '05

30 Nov '05

I made an "all about" sketch based on Ben's template-6.pd and all_about_sends_n_receives.pd http://puredata.org/dev/pddp/DraftAboutDesigns Its review time! .hc ________________________________________________________________________ ____ ¡El pueblo unido jamás será vencido!

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Re: [PD] Re: [OT] Edirol FA-101 under Linux
by José Henrique Padovani 30 Nov '05

30 Nov '05

And does anyone have notice how is the UA-101 working on linux? I don't know yet but it seens to work just like FA-101, but how it is USB 2 I thought that it would be more friendly... A firewire card that seens interesting is Quatafire 610.... Anyone using with PD on linux? Hammerfall is much expensive to me.... :( ZÃ© _______________________________________________________ Yahoo! doce lar. FaÃ§a do Yahoo! sua homepage. http://br.yahoo.com/homepageset.html

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Re: [PD] help with rfft~ (fwd)
by Mathieu Bouchard 30 Nov '05

30 Nov '05

mail lost? resending... ---------- Forwarded message ---------- Date: Tue, 29 Nov 2005 18:44:52 -0500 (EST) From: Mathieu Bouchard <matju(a)artengine.ca> To: thewade <pdman(a)aproximation.org> Cc: Georg Holzmann <grhPD(a)gmx.at>, pd-list <pd-list(a)iem.kug.ac.at> Subject: Re: [PD] help with rfft~ On Tue, 29 Nov 2005, thewade wrote: > So which is better for convolution: polar or rectangular? Some processing must > happen for convolution, because just multiplying the real outputs of two rfft~ > objects and the two complex outputs makes for very poor convolution. Do most > convolution tools (PD or otherwise) convert to polar, multiply the > frequencies, divide by niquist (I have no idea here), then use one of the the > signal phases and convert back to rectangular for rifft~, or is there some > oter way? excuse me? multiplying the frequencies? i think you mean, for each frequency, multiply the amplitudes together. multiplication of two complexes x+y*i and x'+y'*i in cartesian representation is: x'' = x*x' - y*y' y'' = x*y' + y*x' Then with a polar representation: x = r*cos(a) y = r*sin(a) It becomes as easy as: a'' = a+a' r'' = r*r' Or even easier in complex log representation: s+a*i = log(x+y*i) s = log r a'' = a+a' s'' = s+s' However, it only makes sense if you are going to make many multiplications between polar forms. If not, then the sin,cos conversions and their inverses r=sqrt(x*x+y*y),a=atan2(y,x) become more of a burden than a shortcut. ____________________________________________________________________ Mathieu Bouchard - tél:+1.514.383.3801 - http://artengine.ca/matju Freelance Digital Arts Engineer, Montréal QC Canada

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Call for PDDP Sketches
by Hans-Christoph Steiner 30 Nov '05

30 Nov '05

We are now working full tilt on the templates for the Pure Data Documentation Project. Now that we have the reference/help template basically ironed out, we are moving on the "all about", tutorial, and workshop templates. If you have some ideas, make a sketch and submit it to the PDDP wiki: http://puredata.org/dev/pddp/ There you will also find all of the existing sketches and links to the existing PDDP content in various layouts. .hc ________________________________________________________________________ ____ "Information wants to be free." -Stewart Brand

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help with rfft~
by thewade 30 Nov '05

30 Nov '05

Hi all, I am reading Curtis Roads book "The Computer Music Tutorial" trying to understand fft. I get a little lost at times but I think I basically get it. Now how does this information match with the fft~ or rfft~ object in PD I wonder? The help for fft~ says (for that rfft~ at least) the left and right outputs can be considered as the coefficents of cosine and sine respectively. Does this mean that if frequency and phase of a sinusoid can br represented as A*sin(2*PI*f*t)+B*cos(2*PI*f*t), then the left output of fft~ is B and the right output is A? If so, how do I get frequency and phase? (My calculus book is back in Boulder) If I am going to convolve the two signals - multiply in the frequency domain - what happens to phase? I know that I could open the convo-bros patch and copy/paste, but I would really rather understand the process and write my own patch from scratch. Thank you for the help! -thewade PS: also, for bug reporting purposes: sometimes if I have a patch running and I open/edit/save an abstraction within that patch i can no longer close that bastraction as PD claims that there is no .X874598743 object (or some number). And feature requests: i would like to be able to decare default font size and level of dialogs in the .pdrc. For example whe I close a window I always get a dialog "are you sure you want to close this window". I would rather close the window and kick myself later for not saving, then get that dialog all the time. PD-devel from CVS

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Pd-list November 2005