hi all
during my trials with gem i made a little set of abstractions, that hopefully could be usefull when dealing with vectors. at least they have been for me.
the set contains:
[v_+] : adds two vectors [v_-] : subtracts a vector from another [v_scale] : scales a vector [v_mag] : outputs the magnitude of a vector [v_normalize] : normalizes a vector (so that its magnitude becomes 1) [v_x] : computes the cross product of two vectors [v_rotate] : rotates a vector around another
let me know if you miss something or if you find it not useable at all.
it can be downloaded from here: http://romanhaefeli.net/pd/v_abstractions.tar.gz
roman
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More like this, please!!!
~Kyle
On 2/28/07, Roman Haefeli reduzierer@yahoo.de wrote:
hi all
during my trials with gem i made a little set of abstractions, that hopefully could be usefull when dealing with vectors. at least they have been for me.
the set contains:
[v_+] : adds two vectors [v_-] : subtracts a vector from another [v_scale] : scales a vector [v_mag] : outputs the magnitude of a vector [v_normalize] : normalizes a vector (so that its magnitude becomes 1) [v_x] : computes the cross product of two vectors [v_rotate] : rotates a vector around another
let me know if you miss something or if you find it not useable at all.
it can be downloaded from here: http://romanhaefeli.net/pd/v_abstractions.tar.gz
roman
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Roman Haefeli wrote:
hi all
during my trials with gem i made a little set of abstractions, that hopefully could be usefull when dealing with vectors. at least they have been for me.
the set contains:
[v_+] : adds two vectors [v_-] : subtracts a vector from another [v_scale] : scales a vector
funnily enough theses have been part of Gem for a long time. they have been made abstractions and moved to markEx (along with other objects that are not directly related to Gem)
[v_mag] : outputs the magnitude of a vector [v_normalize] : normalizes a vector (so that its magnitude becomes 1) [v_x] : computes the cross product of two vectors [v_rotate] : rotates a vector around another
let me know if you miss something or if you find it not useable at all.
why don't you just make them part of the frank's list-abstractions?
mf.asdr IOhannes
Hallo, IOhannes m zmoelnig hat gesagt: // IOhannes m zmoelnig wrote:
why don't you just make them part of the frank's list-abstractions?
Because they already are? ;)
But the versions of these in [list]-abs also handle arbitrary length lists and lists including symbols (which get ignored). If you already know, that you always have 3-element float lists you can optimize stuff a bit.
Ciao
Frank Barknecht _ ______footils.org_ __goto10.org__
On Thu, 2007-03-01 at 10:53 +0100, Frank Barknecht wrote:
Hallo, IOhannes m zmoelnig hat gesagt: // IOhannes m zmoelnig wrote:
why don't you just make them part of the frank's list-abstractions?
Because they already are? ;)
But the versions of these in [list]-abs also handle arbitrary length lists and lists including symbols (which get ignored). If you already know, that you always have 3-element float lists you can optimize stuff a bit.
hey frank
after a closer look to list-abs again, it turned out that almost all of the vector-abs are already implemented in list-abs and therefore could be considered obsolet. the only really new is [v_rotate] (it's _not_ the same as list-rot) and possibly [v_move], which is somehow related to [triple-scale]. however, i started with [v_rotate] which i was really missing and then one came after the other. i didn't meant to invent the wheel again.
roman
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Hallo, Roman Haefeli hat gesagt: // Roman Haefeli wrote:
after a closer look to list-abs again, it turned out that almost all of the vector-abs are already implemented in list-abs and therefore could be considered obsolet. the only really new is [v_rotate] (it's _not_ the same as list-rot) and possibly [v_move], which is somehow related to [triple-scale]. however, i started with [v_rotate] which i was really missing and then one came after the other. i didn't meant to invent the wheel again.
Not at all: I think, having a set of specific 3-element vector operations available as abstractions is very useful.
Ciao
Frank Barknecht _ ______footils.org_ __goto10.org__
On Thu, 2007-03-01 at 10:10 +0100, IOhannes m zmoelnig wrote:
Roman Haefeli wrote:
hi all
during my trials with gem i made a little set of abstractions, that hopefully could be usefull when dealing with vectors. at least they have been for me.
the set contains:
[v_+] : adds two vectors [v_-] : subtracts a vector from another [v_scale] : scales a vector
funnily enough theses have been part of Gem for a long time. they have been made abstractions and moved to markEx (along with other objects that are not directly related to Gem)
[v_mag] : outputs the magnitude of a vector [v_normalize] : normalizes a vector (so that its magnitude becomes 1) [v_x] : computes the cross product of two vectors [v_rotate] : rotates a vector around another
let me know if you miss something or if you find it not useable at all.
why don't you just make them part of the frank's list-abstractions?
i don't think that these should get part of list-abs, though they share some functionality. the list-abs are so cool, because they work with any list with any length. the aim of the v_abs is really only dealing with vectors (list of 3 floatatoms) and they are a bit faster because of that. when passing 1000 vectors each gem render cycle, this could make a difference, i think.
roman
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-
Frank Barknecht -
IOhannes m zmoelnig -
Kyle Klipowicz -
Roman Haefeli