# Latest

**URL:** https://discourse.processing.org/latest.md?page=413

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

**Page:** 414

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## [Receive DMX input to control sketch on raspberry PI](https://discourse.processing.org/t/receive-dmx-input-to-control-sketch-on-raspberry-pi/15989)

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**Author:** [@xpluscal](https://discourse.processing.org/u/xpluscal)\
**Replies:** 1\
**Last updated:** [December 13, 2019, 12:24am UTC](https://discourse.processing.org/t/receive-dmx-input-to-control-sketch-on-raspberry-pi/15989 "2019-12-13T00:24:41Z")

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Hi, I’m trying to do the following: I have a light installation of about 500 LEDs (with a Fadecandy controller) that are being controlled by a processing sketch running on a raspberry pi zero w. In order to make this …

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## [How to analyze the computational overhead of a Processing Sketch](https://discourse.processing.org/t/how-to-analyze-the-computational-overhead-of-a-processing-sketch/16327)

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**Author:** [@CaseyJ](https://discourse.processing.org/u/CaseyJ)\
**Replies:** 5\
**Last updated:** [December 12, 2019, 10:43am UTC](https://discourse.processing.org/t/how-to-analyze-the-computational-overhead-of-a-processing-sketch/16327 "2019-12-12T10:43:31Z")

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Please forgive me if the terms are inaccurate or this is the wrong forum. Essentially I write sketches in Processing and I am struggling to find out why my code runs slow. Sometimes a sketch runs fast and I have no ide…

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## [Update canvas when scrolling](https://discourse.processing.org/t/update-canvas-when-scrolling/16160)

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**Author:** [@clankill3r](https://discourse.processing.org/u/clankill3r)\
**Replies:** 2\
**Last updated:** [December 12, 2019, 8:42am UTC](https://discourse.processing.org/t/update-canvas-when-scrolling/16160 "2019-12-12T08:42:07Z")

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I have elements in the dom and I draw certain overlays using a canvas. The problem is that often the render of the dom happens before the canvas is updated and therefore they are not in sync: Is there any way to make…

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## [Have a problem with "for" comand](https://discourse.processing.org/t/have-a-problem-with-for-comand/16337)

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**Author:** [@AkaiKenshi](https://discourse.processing.org/u/AkaiKenshi)\
**Replies:** 10\
**Last updated:** [December 12, 2019, 6:20am UTC](https://discourse.processing.org/t/have-a-problem-with-for-comand/16337 "2019-12-12T06:20:27Z")

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i’m trying to create a code that display a grid with squares and when you put the mouse over a square it disappears, how ever in my code when I put the mouse over a square the row and the column disappear… here is my c…

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## [Bad language: block posting or censor words?](https://discourse.processing.org/t/bad-language-block-posting-or-censor-words/16334)

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**Author:** [@jeremydouglass](https://discourse.processing.org/u/jeremydouglass)\
**Replies:** 4\
**Last updated:** [December 12, 2019, 3:04am UTC](https://discourse.processing.org/t/bad-language-block-posting-or-censor-words/16334 "2019-12-12T03:04:02Z")

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We have had a couple proposals to configure the forum to automatically process a list of blocked / censored profane words, such as you might find in: CMU Offensive / Profane words list https://www.cs.cmu.edu/~biglou/re…

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## [Video forwarding with Processing - request](https://discourse.processing.org/t/video-forwarding-with-processing-request/16326)

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**Author:** [@galgal12345](https://discourse.processing.org/u/galgal12345)\
**Replies:** 2\
**Last updated:** [December 12, 2019, 2:28am UTC](https://discourse.processing.org/t/video-forwarding-with-processing-request/16326 "2019-12-12T02:28:27Z")

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Hi guys, Im new to Arduino+Processing and I have a project for school. can anyone help me with coding this task- Im using an infrared sensor with this code on arduino (attached) and I would like to ‘forward’ a playin…

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## [How to covert vectors to SVG paths?](https://discourse.processing.org/t/how-to-covert-vectors-to-svg-paths/15942)

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**Author:** [@buria](https://discourse.processing.org/u/buria)\
**Replies:** 2\
**Last updated:** [December 12, 2019, 12:33am UTC](https://discourse.processing.org/t/how-to-covert-vectors-to-svg-paths/15942 "2019-12-12T00:33:37Z")

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I’m using this sketch made by 郑越升Sen and I’m trying to export the result as PDF to work on it on Illustrator. But the lines are not paths, they’re a bunch of points. Is there a way to export curve lines as svg maintainin…

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## [Highlighting a rect for some time](https://discourse.processing.org/t/highlighting-a-rect-for-some-time/16322)

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**Author:** [@Unl3a5h3r](https://discourse.processing.org/u/Unl3a5h3r)\
**Replies:** 1\
**Last updated:** [December 11, 2019, 4:05pm UTC](https://discourse.processing.org/t/highlighting-a-rect-for-some-time/16322 "2019-12-11T16:05:39Z")

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Hi, ich try to get into processing and thought I’ll programm a small game. I googled for some game ideas and found the game simon that seemed to be pretty simple to program. I have defined my colors and stored them in …

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## [How to add image to particle system](https://discourse.processing.org/t/how-to-add-image-to-particle-system/16017)

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**Author:** [@dawn](https://discourse.processing.org/u/dawn)\
**Replies:** 5\
**Last updated:** [December 11, 2019, 2:23pm UTC](https://discourse.processing.org/t/how-to-add-image-to-particle-system/16017 "2019-12-11T14:23:11Z")

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PImage fondo; Globos\[\] globos = new Globos\[0\]; int cantGlobos =400; void setup () { size (900, 606); noStroke(); smooth(); fondo=loadImage ("fondoperdiste.jpg"); } void draw() { background(fondo); globos = (Globo…

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## [Play Animation within p5js/Hover Effect on Objects](https://discourse.processing.org/t/play-animation-within-p5js-hover-effect-on-objects/16306)

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**Author:** [@van326](https://discourse.processing.org/u/van326)\
**Replies:** 4\
**Last updated:** [December 11, 2019, 4:21am UTC](https://discourse.processing.org/t/play-animation-within-p5js-hover-effect-on-objects/16306 "2019-12-11T04:21:31Z")

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Hello! Long story short, I am trying to have animations and audio play in a loop when the user clicks on certain objects. I have looked up the Coding Train videos and have gotten some help for most parts of my project, b…

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## [Degradado Lineal Diagonal](https://discourse.processing.org/t/degradado-lineal-diagonal/16298)

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**Author:** [@humano](https://discourse.processing.org/u/humano)\
**Replies:** 7\
**Last updated:** [December 11, 2019, 12:04am UTC](https://discourse.processing.org/t/degradado-lineal-diagonal/16298 "2019-12-11T00:04:29Z")

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Hi! How could I change this linear gradient from horizontal to diagonal? Thanks! void setup(){ size(360,720); smooth(); background(255,95,95); float l = width/255; for(int i = 0; i\<width; i++) { stroke(2…

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## [Dirección agujas reloj](https://discourse.processing.org/t/direccion-agujas-reloj/16277)

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**Author:** [@humano](https://discourse.processing.org/u/humano)\
**Replies:** 8\
**Last updated:** [December 10, 2019, 7:49pm UTC](https://discourse.processing.org/t/direccion-agujas-reloj/16277 "2019-12-10T19:49:42Z")

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¡Hola! Necesito realizar varios cambios en el siguiente reloj, ¿podéis ayudarme? ¿Cómo puedo conseguir que la aguja vaya hacia atrás, es decir, que se mueva en la dirección contraria a las agujas del reloj? ¿Cómo …

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## [Update Of my Processing Work](https://discourse.processing.org/t/update-of-my-processing-work/16294)

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**Author:** [@Skys](https://discourse.processing.org/u/Skys)\
**Replies:** 0\
**Last updated:** [December 10, 2019, 1:51pm UTC](https://discourse.processing.org/t/update-of-my-processing-work/16294 "2019-12-10T13:51:20Z")

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My work goes on, and i made a little update of my code colletions i wrote for processing. I try to make a Swarm enemy for my space shoter Xenotaum, called XenoSwarm. this will be a “swarm” for my tradegeme Wothtrade lik…

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## [Missing Sketchbook - Processing Won't Start](https://discourse.processing.org/t/missing-sketchbook-processing-wont-start/16184)

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**Author:** [@fredstout](https://discourse.processing.org/u/fredstout)\
**Replies:** 16\
**Last updated:** [December 10, 2019, 1:17pm UTC](https://discourse.processing.org/t/missing-sketchbook-processing-wont-start/16184 "2019-12-10T13:17:12Z")

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I have downloaded the latest version of Processing after a major file reorganization. Processing will not start because it says the Sketchbook is missing. I have checked for a preferences.txt file and there isn’t one. Wh…

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## [How to add sliders to fluid animation](https://discourse.processing.org/t/how-to-add-sliders-to-fluid-animation/16291)

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**Author:** [@fabnai](https://discourse.processing.org/u/fabnai)\
**Replies:** 1\
**Last updated:** [December 10, 2019, 11:36am UTC](https://discourse.processing.org/t/how-to-add-sliders-to-fluid-animation/16291 "2019-12-10T11:36:30Z")

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Hello everybody I am new to processing and coding in general so please have patience with me. I found a tutorial from coding train on how to create fluid animations in processing. I would like to control different par…

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## [Ml5 NetworkError](https://discourse.processing.org/t/ml5-networkerror/16191)

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**Author:** [@coco](https://discourse.processing.org/u/coco)\
**Replies:** 8\
**Last updated:** [December 10, 2019, 8:51am UTC](https://discourse.processing.org/t/ml5-networkerror/16191 "2019-12-10T08:51:13Z")

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I’m trying to get the Image Classifier demo to work (using a local server) but I keep getting a “NetworkError when attempting to fetch resource” error… It apparently has something to do with CORS but I can’t seem to a…

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## [Linear Potentiometer](https://discourse.processing.org/t/linear-potentiometer/16270)

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**Author:** [@ozman](https://discourse.processing.org/u/ozman)\
**Replies:** 5\
**Last updated:** [December 10, 2019, 4:41am UTC](https://discourse.processing.org/t/linear-potentiometer/16270 "2019-12-10T04:41:54Z")

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Hi, i am trying to make a game using a single linear potentiometer where you can draw line Up, Down, Left and Right. So far i am able to move in every direction by pressing ‘H’ to change the axis direction to up and do…

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## [Función circle() en Processing 3](https://discourse.processing.org/t/funcion-circle-en-processing-3/15815)

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**Author:** [@humano](https://discourse.processing.org/u/humano)\
**Replies:** 7\
**Last updated:** [December 9, 2019, 9:52pm UTC](https://discourse.processing.org/t/funcion-circle-en-processing-3/15815 "2019-12-09T21:52:51Z")

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¡Hola! Estoy usando Processing 3.5.3 y no me reconoce la función circle (), pero no quiero usar ellipse() porque necesito que el programa funcione en pantallas de muy diferentes formatos, sin que los círculos se deforme…

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## [Use a list to updatePixels()](https://discourse.processing.org/t/use-a-list-to-updatepixels/16268)

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**Author:** [@WhatItDo](https://discourse.processing.org/u/WhatItDo)\
**Replies:** 10\
**Last updated:** [December 9, 2019, 9:22pm UTC](https://discourse.processing.org/t/use-a-list-to-updatepixels/16268 "2019-12-09T21:22:45Z")

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Hallo everyone, I have a List of RGB values (technically all grey, in the form of (255, 255, 255), (204, 204, 204), (255, 255, 255) etc.) that I would like to display as an image. From my understanding, the updatePixels…

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## [DLL in processing](https://discourse.processing.org/t/dll-in-processing/16263)

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**Author:** [@Lubos](https://discourse.processing.org/u/Lubos)\
**Replies:** 1\
**Last updated:** [December 9, 2019, 5:15pm UTC](https://discourse.processing.org/t/dll-in-processing/16263 "2019-12-09T17:15:48Z")

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How to use (non Windows) DLL within Processing?

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## [About the p5.js Editor and Enhancements](https://discourse.processing.org/t/about-the-p5-js-editor-and-enhancements/15913)

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**Author:** [@willianxz](https://discourse.processing.org/u/willianxz)\
**Replies:** 6\
**Last updated:** [December 9, 2019, 3:52pm UTC](https://discourse.processing.org/t/about-the-p5-js-editor-and-enhancements/15913 "2019-12-09T15:52:32Z")

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Hello, what do you think of when we create our projects, they appear as screen print in our URL ?? For example, going to https://editor.p5js.org/willianxz/ should appear a list of my projects in the form of images, this…

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## [Animation that turns on and off when I receive an arduino data](https://discourse.processing.org/t/animation-that-turns-on-and-off-when-i-receive-an-arduino-data/16259)

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**Author:** [@sebasg94](https://discourse.processing.org/u/sebasg94)\
**Replies:** 2\
**Last updated:** [December 9, 2019, 11:35am UTC](https://discourse.processing.org/t/animation-that-turns-on-and-off-when-i-receive-an-arduino-data/16259 "2019-12-09T11:35:29Z")

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I want to make an animation of the car park dashboard lights, but I don’t know how to do it. I have 2 images, one of the lights on and one of the lights off. What I try is to make an animation that turns on and off as i…

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## [G4P not drawing background of label](https://discourse.processing.org/t/g4p-not-drawing-background-of-label/16261)

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**Author:** [@mark\_orion](https://discourse.processing.org/u/mark_orion)\
**Replies:** 1\
**Last updated:** [December 9, 2019, 11:14am UTC](https://discourse.processing.org/t/g4p-not-drawing-background-of-label/16261 "2019-12-09T11:14:21Z")

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I want to create a label with a distinctive background so that the actual box of the label is visible. However whatever color I define as background (color 6 in the color scheme) is only drawn right behind the text but n…

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## [Embedding .pde to html does not work/ .pde to p5.js](https://discourse.processing.org/t/embedding-pde-to-html-does-not-work-pde-to-p5-js/16181)

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**Author:** [@hannes](https://discourse.processing.org/u/hannes)\
**Replies:** 6\
**Last updated:** [December 9, 2019, 8:38am UTC](https://discourse.processing.org/t/embedding-pde-to-html-does-not-work-pde-to-p5-js/16181 "2019-12-09T08:38:31Z")

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Hello y’all, im trying to embed a processing sketch I just made in html but it didn’t work. I read some manuals on this and others forum but Im doing something wrong. (like this article: http://processingjs.org/articles…

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## [Echo effect - Sound coding](https://discourse.processing.org/t/echo-effect-sound-coding/15952)

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**Author:** [@gamzar](https://discourse.processing.org/u/gamzar)\
**Replies:** 3\
**Last updated:** [December 9, 2019, 7:23am UTC](https://discourse.processing.org/t/echo-effect-sound-coding/15952 "2019-12-09T07:23:48Z")

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Good morning dear processing users, sorry to bother you guys, but I am writing to ask for some help related to my project - visualising the sound input from microphone and having the echo delayed effect back from the sp…

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## [Marker not displaying on map using unfolding library](https://discourse.processing.org/t/marker-not-displaying-on-map-using-unfolding-library/16240)

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**Author:** [@iamgsshetty](https://discourse.processing.org/u/iamgsshetty)\
**Replies:** 13\
**Last updated:** [December 9, 2019, 6:45am UTC](https://discourse.processing.org/t/marker-not-displaying-on-map-using-unfolding-library/16240 "2019-12-09T06:45:45Z")

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code:- import de.fhpotsdam.unfolding. \<em\>; import de.fhpotsdam.unfolding.geo.\</em\> ; import de.fhpotsdam.unfolding.utils.\*; import de.fhpotsdam.unfolding.providers.Microsoft; import de.fhpotsdam.unfolding.marker.\*; U…

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## [Trouble with shapes](https://discourse.processing.org/t/trouble-with-shapes/16243)

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**Author:** [@FurryNightShade](https://discourse.processing.org/u/FurryNightShade)\
**Replies:** 3\
**Last updated:** [December 9, 2019, 4:18am UTC](https://discourse.processing.org/t/trouble-with-shapes/16243 "2019-12-09T04:18:20Z")

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Hi. I’m having some trouble with drawing shapes. I’m trying to draw a B and it doesn’t fill the whole shape. Acording to the example on the beginContour() doc page, you don’t have to draw the starting point at the end,…

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## [How to add curvature on a recursive tree](https://discourse.processing.org/t/how-to-add-curvature-on-a-recursive-tree/16257)

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**Author:** [@marcoo](https://discourse.processing.org/u/marcoo)\
**Replies:** 1\
**Last updated:** [December 9, 2019, 3:47am UTC](https://discourse.processing.org/t/how-to-add-curvature-on-a-recursive-tree/16257 "2019-12-09T03:47:39Z")

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Hi there. I’m doing a sketch of a recursive tree in processing and i want to add curvature on the branches but i don’t know how… There is the code below. float minBranchLen = 0.5; float angle= radians (30); float bran…

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## [About the P5.JS Editor](https://discourse.processing.org/t/about-the-p5-js-editor/15835)

<div class="topic-metadata">

**Author:** [@willianxz](https://discourse.processing.org/u/willianxz)\
**Replies:** 2\
**Last updated:** [December 9, 2019, 2:08am UTC](https://discourse.processing.org/t/about-the-p5-js-editor/15835 "2019-12-09T02:08:04Z")

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It would be very interesting if when saving the project, the project was saved with a screenshot taken, so when we open our projects we will have a preview of what it is. It would also be nice to have a place with other…

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## [I encountered a problem in Fisica's FPrismaticJoint setting](https://discourse.processing.org/t/i-encountered-a-problem-in-fisicas-fprismaticjoint-setting/15732)

<div class="topic-metadata">

**Author:** [@Shitou](https://discourse.processing.org/u/Shitou)\
**Replies:** 2\
**Last updated:** [December 9, 2019, 1:27am UTC](https://discourse.processing.org/t/i-encountered-a-problem-in-fisicas-fprismaticjoint-setting/15732 "2019-12-09T01:27:20Z")

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I want to use the FPrismaticJoint in my python mode processing sketch, but when i use setAxis() of the Joint, it never works. I want the Joint to move horizontally。 add\_library('fisica') from my\_func import \* def set…

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