# Libraries

**URL:** https://discourse.processing.org/c/processing/processing-libraries/19.md?page=49

[Latest](https://discourse.processing.org/latest.md) · [Categories](https://discourse.processing.org/categories.md) · [Tags](https://discourse.processing.org/tags.md)

**Page:** 50

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## [Finding the velocity at a specific point using the PixelFlow library](https://discourse.processing.org/t/finding-the-velocity-at-a-specific-point-using-the-pixelflow-library/15603)

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**Author:** [@BongoTurtle](https://discourse.processing.org/u/BongoTurtle)\
**Replies:** 3\
**Last updated:** [November 23, 2019, 6:58am UTC](https://discourse.processing.org/t/finding-the-velocity-at-a-specific-point-using-the-pixelflow-library/15603 "2019-11-23T06:58:39Z")

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How would I find the velocity at a specific point for the basic 2D flow like in the example: // FLUID SIMULATION EXAMPLE import com.thomasdiewald.pixelflow.java.DwPixelFlow; import com.thomasdiewald.pixelflow.java.fluid…

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## [Allow people to vote in videos/streams on youtube](https://discourse.processing.org/t/allow-people-to-vote-in-videos-streams-on-youtube/15594)

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**Author:** [@HAL989](https://discourse.processing.org/u/HAL989)\
**Replies:** 2\
**Last updated:** [November 23, 2019, 12:04am UTC](https://discourse.processing.org/t/allow-people-to-vote-in-videos-streams-on-youtube/15594 "2019-11-23T00:04:58Z")

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Hello. I currently have some code working that reads a discussion page and looks for a keyword (!type), i’m wondering how exactly would i turn it into a thing to read: (preferably stream comments) or video comments. imp…

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## [Interactivity and capture](https://discourse.processing.org/t/interactivity-and-capture/15613)

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**Author:** [@Aelita](https://discourse.processing.org/u/Aelita)\
**Replies:** 4\
**Last updated:** [November 22, 2019, 10:36pm UTC](https://discourse.processing.org/t/interactivity-and-capture/15613 "2019-11-22T22:36:47Z")

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Hi! I’m working on a project for university and I’m having some difficulties with Processing. Concept: There are two pictures and the program makes a transition by transparency from one picture to another, by moving the…

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## [Getting the video library to work outside the PDE](https://discourse.processing.org/t/getting-the-video-library-to-work-outside-the-pde/15532)

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**Author:** [@clankill3r](https://discourse.processing.org/u/clankill3r)\
**Replies:** 1\
**Last updated:** [November 22, 2019, 8:28pm UTC](https://discourse.processing.org/t/getting-the-video-library-to-work-outside-the-pde/15532 "2019-11-22T20:28:33Z")

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How can I get the video library to work outside the pde. I can load a movie, I can hear the sound, but it is not displaying. I tried System.setProperty("java.library.path", "/java/libs/processing/video/macosx/gstreame…

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## [Connect to node.js](https://discourse.processing.org/t/connect-to-node-js/15683)

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**Author:** [@clankill3r](https://discourse.processing.org/u/clankill3r)\
**Replies:** 0\
**Last updated:** [November 21, 2019, 10:51am UTC](https://discourse.processing.org/t/connect-to-node-js/15683 "2019-11-21T10:51:29Z")

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Is anyone able to connect processing with node.js? I get onError(EOFException: Reading WebSocket Upgrade response) import websockets.\*; WebsocketClient wsc; void setup() { size(200, 200); wsc = new WebsocketClie…

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## [ControlP5 buttons - How to make them work](https://discourse.processing.org/t/controlp5-buttons-how-to-make-them-work/15550)

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**Author:** [@dawn](https://discourse.processing.org/u/dawn)\
**Replies:** 5\
**Last updated:** [November 20, 2019, 10:15pm UTC](https://discourse.processing.org/t/controlp5-buttons-how-to-make-them-work/15550 "2019-11-20T22:15:44Z")

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Hello, I’m trying to create a photo filter app using controlP5 buttons. How can I make it work? I have tried this (thinking how I built a filter app before using the keyboard), but it doesn’t work, seems like I still d…

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## [Reading Data from Microsoft Access Files](https://discourse.processing.org/t/reading-data-from-microsoft-access-files/15622)

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**Author:** [@Lehmoxy](https://discourse.processing.org/u/Lehmoxy)\
**Replies:** 10\
**Last updated:** [November 20, 2019, 4:03pm UTC](https://discourse.processing.org/t/reading-data-from-microsoft-access-files/15622 "2019-11-20T16:03:26Z")

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Hello everyone. I am trying to make a custom interface tool/client for a Microsoft Access database, and I need to be able to read information from a Microsoft Access file. Are there any libraries or other tools available…

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## [Using sound and mouse interaction](https://discourse.processing.org/t/using-sound-and-mouse-interaction/15441)

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**Author:** [@JoseBri93](https://discourse.processing.org/u/JoseBri93)\
**Replies:** 6\
**Last updated:** [November 19, 2019, 6:41am UTC](https://discourse.processing.org/t/using-sound-and-mouse-interaction/15441 "2019-11-19T06:41:46Z")

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Hi, Im currently working on this sketch. Overall, whenever i overlap the mouse on any ellipse, i get a color fill and a piece of sound that start playing. The problem was the sound started looping insanely fast (partly …

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## [Processing Sound library, multiple plays, some annoying playing, noises, bad quality](https://discourse.processing.org/t/processing-sound-library-multiple-plays-some-annoying-playing-noises-bad-quality/15589)

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**Author:** [@GeorgeJava](https://discourse.processing.org/u/GeorgeJava)\
**Replies:** 1\
**Last updated:** [November 17, 2019, 10:09pm UTC](https://discourse.processing.org/t/processing-sound-library-multiple-plays-some-annoying-playing-noises-bad-quality/15589 "2019-11-17T22:09:15Z")

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Hello, i try to make some shooter game, and when i was clicking the mouse, the sound gets lags and some noisy, can you help me ? Try it yourself, why it is doing that ? I try to stop afrer if(!audio.isPlaying()) … end it…

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## [Changing webcam-pixels to "nearest" color from color palette array](https://discourse.processing.org/t/changing-webcam-pixels-to-nearest-color-from-color-palette-array/14811)

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**Author:** [@AndreasRef](https://discourse.processing.org/u/AndreasRef)\
**Replies:** 29\
**Last updated:** [November 17, 2019, 9:09pm UTC](https://discourse.processing.org/t/changing-webcam-pixels-to-nearest-color-from-color-palette-array/14811 "2019-11-17T21:09:56Z")

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Hi Using my webcam and a predefined color palette array I want to change each pixels from the webcam into the closest matching color from the color palette array. I am having trouble finding an efficient and stable way…

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## [Problem installing a library (Chroma)](https://discourse.processing.org/t/problem-installing-a-library-chroma/15469)

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**Author:** [@paulstgeorge](https://discourse.processing.org/u/paulstgeorge)\
**Replies:** 10\
**Last updated:** [November 17, 2019, 5:39pm UTC](https://discourse.processing.org/t/problem-installing-a-library-chroma/15469 "2019-11-17T17:39:16Z")

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Can someone with more experience of contributed libraries please look at https://github.com/neilpanchal/Chroma I cannot install this library in Processing. I have tried to download and manually install into ~/Documents/…

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## [How to make a track attachment visualization?](https://discourse.processing.org/t/how-to-make-a-track-attachment-visualization/15425)

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**Author:** [@Garry](https://discourse.processing.org/u/Garry)\
**Replies:** 5\
**Last updated:** [November 17, 2019, 5:33pm UTC](https://discourse.processing.org/t/how-to-make-a-track-attachment-visualization/15425 "2019-11-17T17:33:03Z")

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i have 2 codes 1) import processing.dxf.\*; import ddf.minim.analysis.\*; import ddf.minim.\*; FFT fftLin; FFT fftLog; Waveform audio3D; Minim minim; AudioInput microphone; boolean record; PFont font; float camzoom;…

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## [Audio minim RAM overfill, when creating and deleting sounds](https://discourse.processing.org/t/audio-minim-ram-overfill-when-creating-and-deleting-sounds/15510)

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**Author:** [@GeorgeJava](https://discourse.processing.org/u/GeorgeJava)\
**Replies:** 5\
**Last updated:** [November 17, 2019, 1:57pm UTC](https://discourse.processing.org/t/audio-minim-ram-overfill-when-creating-and-deleting-sounds/15510 "2019-11-17T13:57:10Z")

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Hello there, I creating a sound engine for my 2D game, where i want to change pan and gain in each sound, so i create class, that have minim AudioSample, that loads specific sound, but when i want to delete this, it can…

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## [Can't find a solution to this error](https://discourse.processing.org/t/cant-find-a-solution-to-this-error/15536)

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**Author:** [@jithin1](https://discourse.processing.org/u/jithin1)\
**Replies:** 2\
**Last updated:** [November 17, 2019, 5:18am UTC](https://discourse.processing.org/t/cant-find-a-solution-to-this-error/15536 "2019-11-17T05:18:59Z")

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Can someone help me in solving this error… java.lang.RuntimeException: mouseEvent() already added for this instance of interfascia.IFButton at processing.core.PApplet.die(PApplet.java:3735) at processing.core.PApplet…

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## [How about a GCloud Text-to-Speech & Speech-to-Text wrapper for Processing with a \<10 liner?](https://discourse.processing.org/t/how-about-a-gcloud-text-to-speech-speech-to-text-wrapper-for-processing-with-a-10-liner/15467)

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**Author:** [@advancecoder](https://discourse.processing.org/u/advancecoder)\
**Replies:** 6\
**Last updated:** [November 14, 2019, 4:36pm UTC](https://discourse.processing.org/t/how-about-a-gcloud-text-to-speech-speech-to-text-wrapper-for-processing-with-a-10-liner/15467 "2019-11-14T16:36:44Z")

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How about a GCloud Text-to-Speech & Speech-to-Text wrapper for Processing with a \<10 liner?

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## [My sound file wont play or work and I don't know why](https://discourse.processing.org/t/my-sound-file-wont-play-or-work-and-i-dont-know-why/15445)

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**Author:** [@DudVudAura](https://discourse.processing.org/u/DudVudAura)\
**Replies:** 6\
**Last updated:** [November 13, 2019, 5:48am UTC](https://discourse.processing.org/t/my-sound-file-wont-play-or-work-and-i-dont-know-why/15445 "2019-11-13T05:48:23Z")

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import processing.sound.\*; SoundFile file; String audioName = "tank shot.wav"; String path; void setup() { frameRate(60); background(0); size(1500,1500); file = new SoundFile(this, "Sleigh Ride.mp3"); file…

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## [How to pick specific parts of a Shape3D shape (processing)](https://discourse.processing.org/t/how-to-pick-specific-parts-of-a-shape3d-shape-processing/15240)

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**Author:** [@20dshepard](https://discourse.processing.org/u/20dshepard)\
**Replies:** 3\
**Last updated:** [November 11, 2019, 5:10pm UTC](https://discourse.processing.org/t/how-to-pick-specific-parts-of-a-shape3d-shape-processing/15240 "2019-11-11T17:10:09Z")

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I am attempting to make a voxel-ish world builder, and I need to be able to stack the different blocks. How can I pick the separate sides of the block with the shapes3d library. Whenever I pick the shape, it renders it a…

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## [How to plot multiple graphs in one plot?](https://discourse.processing.org/t/how-to-plot-multiple-graphs-in-one-plot/15392)

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**Author:** [@KGS](https://discourse.processing.org/u/KGS)\
**Replies:** 5\
**Last updated:** [November 11, 2019, 6:32am UTC](https://discourse.processing.org/t/how-to-plot-multiple-graphs-in-one-plot/15392 "2019-11-11T06:32:40Z")

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I need to plot multiple graphs in a single plot in real-time. How can I do it ???

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## [SimpleOpenNI + Kinect V1 problem](https://discourse.processing.org/t/simpleopenni-kinect-v1-problem/15329)

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**Author:** [@Andrea](https://discourse.processing.org/u/Andrea)\
**Replies:** 6\
**Last updated:** [November 9, 2019, 1:43pm UTC](https://discourse.processing.org/t/simpleopenni-kinect-v1-problem/15329 "2019-11-09T13:43:33Z")

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Hi!:blush: I’m a beginner at Processing and I’m currently using Windows10, Processing version 3.5.3 and I have the Kinect 1414 (version 1 I believe). I’ve been trying to use somebody elses code, here’s the video of what …

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## [Draw line and play corresponding sound](https://discourse.processing.org/t/draw-line-and-play-corresponding-sound/15075)

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**Author:** [@plux](https://discourse.processing.org/u/plux)\
**Replies:** 3\
**Last updated:** [November 6, 2019, 8:31am UTC](https://discourse.processing.org/t/draw-line-and-play-corresponding-sound/15075 "2019-11-06T08:31:21Z")

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Hi, sorry for the title, didn’t know what to put. My question is mostly theoretical rather than actual code. I made a simple canvas where a user can draw a line (as image below). Now, assuming that vertical axis corre…

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## [Looking for guidance on rotating objects](https://discourse.processing.org/t/looking-for-guidance-on-rotating-objects/15247)

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**Author:** [@nicnut](https://discourse.processing.org/u/nicnut)\
**Replies:** 3\
**Last updated:** [November 6, 2019, 12:12am UTC](https://discourse.processing.org/t/looking-for-guidance-on-rotating-objects/15247 "2019-11-06T00:12:13Z")

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HI, I’m looking for ideas on how to approach this concept. I have a smaller octagon inside of another ocagon. They are connected by lines on each vertex. I want to rotate the outside octagon while keeping the inner, sm…

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## [How to deactivate polygonizer in geomerative](https://discourse.processing.org/t/how-to-deactivate-polygonizer-in-geomerative/15252)

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**Author:** [@jeykech](https://discourse.processing.org/u/jeykech)\
**Replies:** 1\
**Last updated:** [November 5, 2019, 2:48pm UTC](https://discourse.processing.org/t/how-to-deactivate-polygonizer-in-geomerative/15252 "2019-11-05T14:48:15Z")

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hi all, I have this svg I want to import to processing and manipulate the vertices. when I import the svg , there are some points I don’t want or need. I want just the vertices from the original curve nothing more, how…

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## [Parse midi files](https://discourse.processing.org/t/parse-midi-files/14126)

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**Author:** [@Adrien](https://discourse.processing.org/u/Adrien)\
**Replies:** 8\
**Last updated:** [November 4, 2019, 9:32pm UTC](https://discourse.processing.org/t/parse-midi-files/14126 "2019-11-04T21:32:54Z")

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Hi, Do you know how to read/parse a midi file in processing 3? There was some librairies but to old to be use in processing 3, or I find some Java code to play a midi file “as it is”, but what I want to do is to play e…

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## [Superpixel boofcv?](https://discourse.processing.org/t/superpixel-boofcv/11702)

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**Author:** [@fun](https://discourse.processing.org/u/fun)\
**Replies:** 3\
**Last updated:** [November 4, 2019, 5:52am UTC](https://discourse.processing.org/t/superpixel-boofcv/11702 "2019-11-04T05:52:12Z")

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I have tried to find some way to make superpixels in Processing. I need it to be a bit configurable, the more features, the better, as resolution and numbers of superpixel will change. Important is a possibility to fill…

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## [Drag and drop an MP3 file](https://discourse.processing.org/t/drag-and-drop-an-mp3-file/15127)

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**Author:** [@ozman](https://discourse.processing.org/u/ozman)\
**Replies:** 2\
**Last updated:** [November 2, 2019, 10:05pm UTC](https://discourse.processing.org/t/drag-and-drop-an-mp3-file/15127 "2019-11-02T22:05:43Z")

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Hello! Are there any tutorials or does any one know how to drag and drop a sound file into a processing sketch and have it play? Thanks for any help, been struggling all day with this!

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## [Make text that is drawn, editable](https://discourse.processing.org/t/make-text-that-is-drawn-editable/15091)

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**Author:** [@cp796](https://discourse.processing.org/u/cp796)\
**Replies:** 3\
**Last updated:** [November 1, 2019, 3:24am UTC](https://discourse.processing.org/t/make-text-that-is-drawn-editable/15091 "2019-11-01T03:24:04Z")

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So I got the colour wheel from cp5 library, and achieved to display the hexcode with text everytime the colour is changed. This is the code which make the hex code display: // “C” is the colour on the colour wheel, so …

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## [Knife Movemement](https://discourse.processing.org/t/knife-movemement/15004)

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**Author:** [@beornten](https://discourse.processing.org/u/beornten)\
**Replies:** 3\
**Last updated:** [October 31, 2019, 1:47pm UTC](https://discourse.processing.org/t/knife-movemement/15004 "2019-10-31T13:47:35Z")

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Ok so basically i want a knife to o down like 600 px, and if its there go back. But i want it to look smooth and that other things dont freeze while the knife goes down. Thats. (btw the comments are german) My Code: //m…

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## [Typographic Mirror!](https://discourse.processing.org/t/typographic-mirror/15034)

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**Author:** [@madiMcD](https://discourse.processing.org/u/madiMcD)\
**Replies:** 2\
**Last updated:** [October 30, 2019, 1:34am UTC](https://discourse.processing.org/t/typographic-mirror/15034 "2019-10-30T01:34:41Z")

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Hi all!! I am a graphic designer using Processing for creative coding art projects, and right now I am part of an exhibition on typography. I am trying to create a mirror out of type. BOOM, cool right I am taking insp…

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## [Display 2 succesive images](https://discourse.processing.org/t/display-2-succesive-images/14966)

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**Author:** [@Y4niS](https://discourse.processing.org/u/Y4niS)\
**Replies:** 21\
**Last updated:** [October 29, 2019, 12:05pm UTC](https://discourse.processing.org/t/display-2-succesive-images/14966 "2019-10-29T12:05:02Z")

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Hi, I aim to display, using Processing, two successive images separated by a time interval. After trying many methods I still can’t get a decent result.:pleading\_face: Here is how I proceeded : int maxImages = 2; PIm…

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## [Using PoseNet/Runway on Processing](https://discourse.processing.org/t/using-posenet-runway-on-processing/14979)

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**Author:** [@natttyk](https://discourse.processing.org/u/natttyk)\
**Replies:** 2\
**Last updated:** [October 28, 2019, 9:27pm UTC](https://discourse.processing.org/t/using-posenet-runway-on-processing/14979 "2019-10-28T21:27:00Z")

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Hello! Newbie here. I’m using the PoseNet Library for Runway on Processing (https://github.com/runwayml/processing/blob/master/posenet/posenet.pde). The current examples only map out the joints in ellipses, but I want t…

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