Search a dict
Mar 26 2020 | 10:54 pm
Hi, I have probably a pretty amateurish question about [dict] and JS.
I'm testing using [dict] to store information about samples in buffers. The structure of the [dict] as I imagine it looks something like:
{ "sound1" : { "descriptors" : { "pitchclass" : [ 0, 1, 3 ], "noisiness" : 0.3, "loudness" : 0.8 } , "playback" : { "buffer name" : "vla_trem2s", "sample start" : 66551.929688000003807, "sample end" : 71836.484375, "main out level" : 0.01, "aux send level" : 1.2714, "pan setting" : "all" } } , "sound2" : { "descriptors" : { "pitchclass" : [ 0, 4, 8 ], "noisiness" : 0.9, "loudness" : 0.1 } , "playback" : { "buffer name" : "vla_temp", "sample start" : 1000, "sample end" : 9999, "main out level" : 0.5, "aux send level" : 0.1, "pan setting" : "left" } } }
(sorry if the formatting is wacky, I can repost as a maxpat if that's a problem)
Now, let's say I want to find all sounds that have pitch class 0. What I want returned is "sound1" and "sound2." Or, just sounds with pitch class 4, which returns only "sound2."
Follow up feature: Rank all sounds by loudness, low to high, which I want returned as "sound2" followed by "sound1."
I've sort of built a primitive version of this using [coll] but I'm reaching the limits of organization and usability. In my [coll] version, I'm iterating through my data at each request, keeping track of the data index. I had a hunch that [dict] in combination with some JS might be a more descriptive, expandable, and readable route to try. However, my JS and [dict] skills are coming up short.
Any help is greatly appreciated!
- Mar 27 2020 | 11:40 amUsing 'getkeys' you can iterate through the dict (keeping track of the key), and at each step use 'get' to check the data.Here is a patch in plain Max (which I generally prefer over JS).
- Mar 27 2020 | 6:01 pmBROC! Amazing. Thanks for making a working patch to do that. Following your lead, I was able to complete my follow up sorting feature. I've posted in case this helps someone else.
