Hi,
is it possible to have more than one graphic representation for the same array in the same patch?
I would like to have a couple of miniature "iconlike" representations of soundfiles on the screen (as arrays) and one current main buffer, which is represented in a large graphic array. Then I'd like to be able to switch the reference of the main buffer between the miniature buffers and get that reflected on screen.
Of course this would be possible by copying the values from the small buffers to the main buffer, but I would prefer a less expensive context switch. Or isn't it less expensive as the visual data has to be changed anyway?
If I have to copy values from a miniature buffer to the main buffer, is there a predefined message for accomplishing it or has the data to get read out and written by some self-defined loop mechanism? How do I access the array size for that?
Thanx in advance, Orm
is it possible to have more than one graphic representation for the same array in the same patch?
no, if you have more arrays with the same name, only one shows data
hi,
----- Original Message ----- From: "Orm Finnendahl" finnendahl@folkwang-hochschule.de To: pd-list@iem.kug.ac.at Sent: Thursday, May 16, 2002 10:35 AM Subject: [PD] arrays
I would like to have a couple of miniature "iconlike" representations of soundfiles on the screen (as arrays) and one current main buffer, which is represented in a large graphic array. Then I'd like to be able to switch the reference of the main buffer between the miniature buffers and get that reflected on screen.
the idea of mini-arrays is good, it saves space and cpu(?).
Of course this would be possible by copying the values from the small buffers to the main buffer, but I would prefer a less expensive context switch. Or isn't it less expensive as the visual data has to be changed anyway? If I have to copy values from a miniature buffer to the main buffer, is there a predefined message for accomplishing it or has the data to get read out and written by some self-defined loop mechanism? How do I access the array size for that?
as far as i know the visual data is always renewed/calculated from the sample/tabledata, and it is in fact maybe not the best graphical way of representating it. i always try not to display more data than available pixels. and i am working on a method that will show (with two arrays in one graph) the minimum and maximum value of all the samples represented by one pixel. (which will be an abstraction-like calculation in a subpatch). by now i live with "downsampled versions" of soundfiles for the graphical display, which has only the length (in samples) that the display can show (200 pixels - 200 samplevalues) and use a simple tabread4~ to calculate that. the "real" soundfile is in a table-object somewhere. the display is faster and doesŽnt grab to much from the cpu. before the tabread~ i dont use a phasor-loop, but a ramp-table from 0 to 1 which has the same length as the size of the "display" and that is read via a playtable~ everytime i load a new file into a table (and then is switched~ to 0 again). marius.
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Orm Finnendahl -
sme