# Libraries

**URL:** https://discourse.processing.org/c/processing/processing-libraries/19.md?page=51

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

**Page:** 52

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## [Adaptive background subtraction with motionless objects](https://discourse.processing.org/t/adaptive-background-subtraction-with-motionless-objects/14370)

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**Author:** [@rojele](https://discourse.processing.org/u/rojele)\
**Replies:** 3\
**Last updated:** [October 6, 2019, 2:46pm UTC](https://discourse.processing.org/t/adaptive-background-subtraction-with-motionless-objects/14370 "2019-10-06T14:46:31Z")

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Hi! I would like to get a background subtraction method for outdoor conditions, capable of gradually adjust itself to environment light variations but with the capacity of revealing a presence even that is not in motion.…

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## [How to connect Google Spreadsheets to a sketch](https://discourse.processing.org/t/how-to-connect-google-spreadsheets-to-a-sketch/14459)

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**Author:** [@Marce](https://discourse.processing.org/u/Marce)\
**Replies:** 0\
**Last updated:** [October 6, 2019, 10:00am UTC](https://discourse.processing.org/t/how-to-connect-google-spreadsheets-to-a-sketch/14459 "2019-10-06T10:00:53Z")

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Hi there ! I’m new to the new processing forum so if I’m doing something wrong, please tell me ! I’m trying to connect a google spreadsheet to my processing sketch. I have tried using the Temboo library but it seems th…

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## [Simultaneous (nested) AniSequences](https://discourse.processing.org/t/simultaneous-nested-anisequences/14380)

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**Author:** [@leo.nerd](https://discourse.processing.org/u/leo.nerd)\
**Replies:** 1\
**Last updated:** [October 3, 2019, 1:51am UTC](https://discourse.processing.org/t/simultaneous-nested-anisequences/14380 "2019-10-03T01:51:54Z")

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Hello. I’m trying to use the Ani library to orchestrate a sketch that contains several “sub-modes” that have their own timelines and display methods. Essentially, I would like the master sketch to run a sequence similar …

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## [Network library Netstation](https://discourse.processing.org/t/network-library-netstation/14365)

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**Author:** [@kb12592](https://discourse.processing.org/u/kb12592)\
**Replies:** 4\
**Last updated:** [October 2, 2019, 2:54pm UTC](https://discourse.processing.org/t/network-library-netstation/14365 "2019-10-02T14:54:08Z")

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I want to be able to send time-stamps from Processing PDE to an EEG acquisition software called NetStation using the network library. NetStation has plug-ins and scripts available for Matlab, E-prime and Python, to send …

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## [Toxiclibs particles and springs](https://discourse.processing.org/t/toxiclibs-particles-and-springs/14182)

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**Author:** [@orbicularis](https://discourse.processing.org/u/orbicularis)\
**Replies:** 5\
**Last updated:** [October 2, 2019, 12:15am UTC](https://discourse.processing.org/t/toxiclibs-particles-and-springs/14182 "2019-10-02T00:15:43Z")

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Hi, I wrote that with the help of a toxiclibs tutorial. I want all the particles moving upwards to make cylindrical mesh. But in my sketch, particles moves horizontally. What should I change to move particles and spring…

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## [Conflicting libraries (YOLO comp vision)](https://discourse.processing.org/t/conflicting-libraries-yolo-comp-vision/6812)

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**Author:** [@TTG](https://discourse.processing.org/u/TTG)\
**Replies:** 7\
**Last updated:** [September 30, 2019, 1:24am UTC](https://discourse.processing.org/t/conflicting-libraries-yolo-comp-vision/6812 "2019-09-30T01:24:48Z")

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Hi team, i seem not to be able to get YOLO working despite some step by step guidance stated on: from mr MagicandLove. I removed libraries and replaced them to try get the error removed. Is there a tip that can s…

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## [Help in Slit-Scan](https://discourse.processing.org/t/help-in-slit-scan/14195)

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**Author:** [@royal96](https://discourse.processing.org/u/royal96)\
**Replies:** 2\
**Last updated:** [September 29, 2019, 11:58pm UTC](https://discourse.processing.org/t/help-in-slit-scan/14195 "2019-09-29T23:58:04Z")

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hello :slight\_smile: i have written this code for Slit-Scan, import processing.video.\*; Capture video; int x = 0; void setup() { size(2000, 720); frameRate(120); video = new Capture(this, 1280, 720); // Start c…

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## [Sound Recognition](https://discourse.processing.org/t/sound-recognition/14291)

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**Author:** [@Arjuna](https://discourse.processing.org/u/Arjuna)\
**Replies:** 0\
**Last updated:** [September 29, 2019, 9:09pm UTC](https://discourse.processing.org/t/sound-recognition/14291 "2019-09-29T21:09:14Z")

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Hello! I want to know if there is some library to recognize specific sounds. That is, some parts of the code will be triggered only when a certain sound is recognized. So far I tried to isolate only low sounds from voic…

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## [Minim and assign character](https://discourse.processing.org/t/minim-and-assign-character/14274)

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**Author:** [@nishafatin96](https://discourse.processing.org/u/nishafatin96)\
**Replies:** 1\
**Last updated:** [September 29, 2019, 2:16pm UTC](https://discourse.processing.org/t/minim-and-assign-character/14274 "2019-09-29T14:16:24Z")

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hi there, do help me, first of all, I have problem to add more than 1 sound and make sound that I add detect the beat of it. my sound is in different file because I want to do wearable electronic using fingers and assig…

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## [Server equilavent to clientEvent()?](https://discourse.processing.org/t/server-equilavent-to-clientevent/14265)

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**Author:** [@Brastin](https://discourse.processing.org/u/Brastin)\
**Replies:** 0\
**Last updated:** [September 29, 2019, 8:02am UTC](https://discourse.processing.org/t/server-equilavent-to-clientevent/14265 "2019-09-29T08:02:01Z")

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I’m trying to make a multiplayer game, and at the start it needs to send map data across from the host to the other players. A lot of examples I’ve seen use two different applications, a client and a server, but I’ve tie…

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## [How to use fixed Xlim and YLim commands in processing?](https://discourse.processing.org/t/how-to-use-fixed-xlim-and-ylim-commands-in-processing/14229)

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**Author:** [@KGS](https://discourse.processing.org/u/KGS)\
**Replies:** 2\
**Last updated:** [September 27, 2019, 6:08am UTC](https://discourse.processing.org/t/how-to-use-fixed-xlim-and-ylim-commands-in-processing/14229 "2019-09-27T06:08:24Z")

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I have created real-time plot with serial communication. I need a fixed vertical axis in my plot. I have used the grafica library to create the graphs. I have seen there is a command in Grafica library as “fixedYLim” an…

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## [Need Help to develop this code](https://discourse.processing.org/t/need-help-to-develop-this-code/14154)

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**Author:** [@royal96](https://discourse.processing.org/u/royal96)\
**Replies:** 2\
**Last updated:** [September 26, 2019, 2:20pm UTC](https://discourse.processing.org/t/need-help-to-develop-this-code/14154 "2019-09-26T14:20:33Z")

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Hi Everyone i need a help in this code import processing.video.\*; Capture video; int videoCount; int currentAngle; int pixelCount; int angleCount = 200; // how many divisions int radii\[\]; int angles\[\]; int movement…

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## [Missing the right curly bracket](https://discourse.processing.org/t/missing-the-right-curly-bracket/14105)

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**Author:** [@pica](https://discourse.processing.org/u/pica)\
**Replies:** 11\
**Last updated:** [September 23, 2019, 8:24am UTC](https://discourse.processing.org/t/missing-the-right-curly-bracket/14105 "2019-09-23T08:24:50Z")

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It said that I have missing right curly bracket in the last line how can i fix it? // usually one would probably make a generic Shape class and subclass different types (circle, polygon), but that // would mean at leas…

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## [Motion Detection of Multiple Objects](https://discourse.processing.org/t/motion-detection-of-multiple-objects/14045)

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**Author:** [@DietrickWiles](https://discourse.processing.org/u/DietrickWiles)\
**Replies:** 4\
**Last updated:** [September 23, 2019, 4:08am UTC](https://discourse.processing.org/t/motion-detection-of-multiple-objects/14045 "2019-09-23T04:08:57Z")

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Hi, I’m working on a project where I’m using a top-down camera over a space and I need to be able to get multiple people’s positions and a single x and y value each based on their movement. People will be the only thing…

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## [P3D Vector Spherical Geometry Ball](https://discourse.processing.org/t/p3d-vector-spherical-geometry-ball/14083)

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**Author:** [@ChristmasCC](https://discourse.processing.org/u/ChristmasCC)\
**Replies:** 8\
**Last updated:** [September 21, 2019, 4:25am UTC](https://discourse.processing.org/t/p3d-vector-spherical-geometry-ball/14083 "2019-09-21T04:25:19Z")

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I want to create a Ball that could go bigger and smaller according to the Music Frequency. (I don’t want to use the sphere(), because it doesn’t create the dot points) I made it work. But, it is a little bit laggy. At t…

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## [Counting people's numbers](https://discourse.processing.org/t/counting-peoples-numbers/14049)

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**Author:** [@jeeees2](https://discourse.processing.org/u/jeeees2)\
**Replies:** 4\
**Last updated:** [September 20, 2019, 4:40am UTC](https://discourse.processing.org/t/counting-peoples-numbers/14049 "2019-09-20T04:40:04Z")

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Hi, I’m a beginner in processing. I count the number of people with a Kinect program. It recognizes the current number of people and the previous number of people in real time. But there’s a problem. From zero to one,…

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## [Having problem with video library](https://discourse.processing.org/t/having-problem-with-video-library/14065)

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**Author:** [@maddyna](https://discourse.processing.org/u/maddyna)\
**Replies:** 5\
**Last updated:** [September 20, 2019, 4:01am UTC](https://discourse.processing.org/t/having-problem-with-video-library/14065 "2019-09-20T04:01:42Z")

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when ever I am trying to use the video library it is showing an error message: a library used by this sketch is not installed properly. UnsatisfiedLinkError: can’t load library gio-2.0 (gio-2.0|libgio-2.0|libgio-2.0-0…

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## [Extra rotation added while using Proscene](https://discourse.processing.org/t/extra-rotation-added-while-using-proscene/14036)

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**Author:** [@simCoder](https://discourse.processing.org/u/simCoder)\
**Replies:** 1\
**Last updated:** [September 19, 2019, 8:28pm UTC](https://discourse.processing.org/t/extra-rotation-added-while-using-proscene/14036 "2019-09-19T20:28:19Z")

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Hello all! I am currently using the Proscene library to control 3D panning, rotation, and zooming, and one thing I noticed is that when rotating a scene by pressing on the left mouse button while dragging the mouse (or b…

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## [JBox2D moving dynamic object](https://discourse.processing.org/t/jbox2d-moving-dynamic-object/14001)

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**Author:** [@parmex](https://discourse.processing.org/u/parmex)\
**Replies:** 2\
**Last updated:** [September 18, 2019, 8:02am UTC](https://discourse.processing.org/t/jbox2d-moving-dynamic-object/14001 "2019-09-18T08:02:25Z")

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Hi, i am using the JBox2D library, I have a problem. I want to use a little square that is a dynamic object and when i press A or D it moves on left and right; but if i am over the platform it fall like a normal dynamic…

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## [Exporting to OBJ](https://discourse.processing.org/t/exporting-to-obj/11051)

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**Author:** [@PixelMx](https://discourse.processing.org/u/PixelMx)\
**Replies:** 4\
**Last updated:** [September 18, 2019, 1:52am UTC](https://discourse.processing.org/t/exporting-to-obj/11051 "2019-09-18T01:52:37Z")

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I used to use Nervous System to export to OBJ, but it does not work for Processing 3, I even installed Processing 2 and won’t work there either. If there’s no similar library now I’ll try to code it directly in python/bl…

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## [Adding library in Processing IDE](https://discourse.processing.org/t/adding-library-in-processing-ide/14030)

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**Author:** [@ruperty](https://discourse.processing.org/u/ruperty)\
**Replies:** 3\
**Last updated:** [September 17, 2019, 6:23pm UTC](https://discourse.processing.org/t/adding-library-in-processing-ide/14030 "2019-09-17T18:23:15Z")

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I have loaded a library (grafica) in the Processing IDE, but the functions are not recognised. I notice that the library file does not appear in the folder. I guess I can do this manually, but shouldn’t the IDE do this? …

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## [Load map API into Processing? (Leaflet.js equivalent)](https://discourse.processing.org/t/load-map-api-into-processing-leaflet-js-equivalent/14022)

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**Author:** [@antoinesaurat](https://discourse.processing.org/u/antoinesaurat)\
**Replies:** 0\
**Last updated:** [September 17, 2019, 6:26am UTC](https://discourse.processing.org/t/load-map-api-into-processing-leaflet-js-equivalent/14022 "2019-09-17T06:26:00Z")

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Dear all, I am using the excellent library UnfoldingMaps to easily load map tiles API (Google, ESRI etc.) but I was wondering if anyone was aware of another library that would able to load other more modern map API espe…

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## [Get frequencies of sound](https://discourse.processing.org/t/get-frequencies-of-sound/14004)

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**Author:** [@Loe159](https://discourse.processing.org/u/Loe159)\
**Replies:** 1\
**Last updated:** [September 16, 2019, 2:48am UTC](https://discourse.processing.org/t/get-frequencies-of-sound/14004 "2019-09-16T02:48:35Z")

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Hi, to start, sorry for my English but I’m French so I’ll maybe do some mistakes. I’m totally new on Processing and I’d like to get bass of the song of my PC. To do it, I already found a code wich do a spectrograme of t…

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## [How to remove this color bar from color wheel? (Controlp5)](https://discourse.processing.org/t/how-to-remove-this-color-bar-from-color-wheel-controlp5/13984)

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**Author:** [@Leonhard](https://discourse.processing.org/u/Leonhard)\
**Replies:** 5\
**Last updated:** [September 15, 2019, 4:16pm UTC](https://discourse.processing.org/t/how-to-remove-this-color-bar-from-color-wheel-controlp5/13984 "2019-09-15T16:16:33Z")

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Remove the rectangle displaying the color underneath the color wheel. Anyone know how to do this? Thanks

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## [ControlP5 - java.lang.NullPointerException](https://discourse.processing.org/t/controlp5-java-lang-nullpointerexception/13974)

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**Author:** [@Rammstan](https://discourse.processing.org/u/Rammstan)\
**Replies:** 1\
**Last updated:** [September 14, 2019, 4:38am UTC](https://discourse.processing.org/t/controlp5-java-lang-nullpointerexception/13974 "2019-09-14T04:38:05Z")

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Hello, Similar to this post, i have an error. I know the problem is path = controlP5.get(Textfield.class,"File").getText(); But i don’t understand why. All variables are declared at right time… i think :stuck\_out\_tong…

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## [How to change slider label? (controlP5)](https://discourse.processing.org/t/how-to-change-slider-label-controlp5/13946)

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**Author:** [@Leonhard](https://discourse.processing.org/u/Leonhard)\
**Replies:** 2\
**Last updated:** [September 14, 2019, 4:04am UTC](https://discourse.processing.org/t/how-to-change-slider-label-controlp5/13946 "2019-09-14T04:04:20Z")

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Change to something like that:

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## [Export SVG from PGraphics](https://discourse.processing.org/t/export-svg-from-pgraphics/12289)

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**Author:** [@eduzal](https://discourse.processing.org/u/eduzal)\
**Replies:** 12\
**Last updated:** [September 12, 2019, 11:19pm UTC](https://discourse.processing.org/t/export-svg-from-pgraphics/12289 "2019-09-12T23:19:49Z")

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I have a doubt on how to export an SVG with the vector contents inside a PGraphics. Here’s the deal, I’m doing some mouse interactivity(storing mouseClicks as vectors) that are stored in a PGrpahics that’s sending that …

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## [New library for Image Processing](https://discourse.processing.org/t/new-library-for-image-processing/13957)

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**Author:** [@svr8](https://discourse.processing.org/u/svr8)\
**Replies:** 0\
**Last updated:** [September 12, 2019, 10:00pm UTC](https://discourse.processing.org/t/new-library-for-image-processing/13957 "2019-09-12T22:00:15Z")

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Hi! I was looking towards processing as a tool for artists. I wanted to know if processing can have a library that can convert an image of a hand-drawn design on paper into a list of vectors of different shapes. For exa…

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## [Facial recognition (as opposed to detection)?](https://discourse.processing.org/t/facial-recognition-as-opposed-to-detection/13954)

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**Author:** [@prismspecs](https://discourse.processing.org/u/prismspecs)\
**Replies:** 0\
**Last updated:** [September 12, 2019, 8:44pm UTC](https://discourse.processing.org/t/facial-recognition-as-opposed-to-detection/13954 "2019-09-12T20:44:38Z")

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I’m looking for something that will let me train a model based on some prior input (a folder of images) and give me a level of certainty that a face is a match for that person. Does anything like this exist yet in Proces…

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## [Running PGraphics on a second window](https://discourse.processing.org/t/running-pgraphics-on-a-second-window/13563)

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**Author:** [@eduzal](https://discourse.processing.org/u/eduzal)\
**Replies:** 2\
**Last updated:** [September 12, 2019, 7:01pm UTC](https://discourse.processing.org/t/running-pgraphics-on-a-second-window/13563 "2019-09-12T19:01:31Z")

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I have the following situation. I have a PGraphics that’s running without problems in the main window. I want to remove this PG from the main window and simply display it on a second window. All the calculation and Cont…

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