# Latest

**URL:** https://discourse.processing.org/latest.md?page=552

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

**Page:** 553

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## [Trying volume control of mp3 file with arduino flex sensor](https://discourse.processing.org/t/trying-volume-control-of-mp3-file-with-arduino-flex-sensor/6256)

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**Author:** [@runwaysun](https://discourse.processing.org/u/runwaysun)\
**Replies:** 0\
**Last updated:** [December 3, 2018, 3:10pm UTC](https://discourse.processing.org/t/trying-volume-control-of-mp3-file-with-arduino-flex-sensor/6256 "2018-12-03T15:10:13Z")

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Hi im very new to processing. I want to control volume of a mp3 file with flex sensor. So if I bend the sensor the volume goes down. Arduino circuit works and I get the serial but it doesn’t work with processing. Sou…

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## [TCA9548 MUX with multiple sensors having same address](https://discourse.processing.org/t/tca9548-mux-with-multiple-sensors-having-same-address/6239)

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**Author:** [@achumarya](https://discourse.processing.org/u/achumarya)\
**Replies:** 0\
**Last updated:** [December 3, 2018, 2:37am UTC](https://discourse.processing.org/t/tca9548-mux-with-multiple-sensors-having-same-address/6239 "2018-12-03T02:37:10Z")

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One TCA9548 can connect 8 I2C slave devices . If these 8 slave devices have the same I2C slave address. How to access each slave device by TCA9548? Could anyone share some codes? Thanks in advance.

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## [Auto-updating and downloading libraries](https://discourse.processing.org/t/auto-updating-and-downloading-libraries/6008)

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**Author:** [@ThatIsAPseudo](https://discourse.processing.org/u/ThatIsAPseudo)\
**Replies:** 1\
**Last updated:** [December 3, 2018, 1:19pm UTC](https://discourse.processing.org/t/auto-updating-and-downloading-libraries/6008 "2018-12-03T13:19:51Z")

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Hello there ! I was wondering if that is possible to ask index.html to look for the libraries online through the CDN, and if these are not available (because of server connexion failure, airplane mode,…) it uses local l…

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## [Color selected from pallette randomly for ellipses drawn by an array](https://discourse.processing.org/t/color-selected-from-pallette-randomly-for-ellipses-drawn-by-an-array/6204)

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**Author:** [@W1nDs0R](https://discourse.processing.org/u/W1nDs0R)\
**Replies:** 2\
**Last updated:** [December 2, 2018, 9:36pm UTC](https://discourse.processing.org/t/color-selected-from-pallette-randomly-for-ellipses-drawn-by-an-array/6204 "2018-12-02T21:36:20Z")

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Hey there Guys, I was wondering if you could offer me some insight in to how I can color each ellipse randomly that is drawn by an array. Currently I have created a second array for colors which it draws from when the …

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## [Questions on static methods](https://discourse.processing.org/t/questions-on-static-methods/6169)

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**Author:** [@jb4x](https://discourse.processing.org/u/jb4x)\
**Replies:** 4\
**Last updated:** [December 2, 2018, 7:33pm UTC](https://discourse.processing.org/t/questions-on-static-methods/6169 "2018-12-02T19:33:43Z")

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Hi everyone, I’m trying to get my head around static methods in a class. Let’s say I want to create the following class: class MyVector { float v1, v2; MyVector(float v1, float v2) { this.v1 = v1; this.…

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## [Shift perspective on a 2D sketch? or if not posible, easily convert to 3D?](https://discourse.processing.org/t/shift-perspective-on-a-2d-sketch-or-if-not-posible-easily-convert-to-3d/5954)

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**Author:** [@gio](https://discourse.processing.org/u/gio)\
**Replies:** 2\
**Last updated:** [December 2, 2018, 6:53pm UTC](https://discourse.processing.org/t/shift-perspective-on-a-2d-sketch-or-if-not-posible-easily-convert-to-3d/5954 "2018-12-02T18:53:35Z")

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Hi, I got this 2s array grid of sliding circles: https://codepen.io/giorgiomartini/pen/MzGmwW?editors=0010 Its inspired by this poster: as u can see in the poster, it has perspecive… is there a way to tilt/shift …

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## [Open Call for 2019 Processing Foundation Fellowships](https://discourse.processing.org/t/open-call-for-2019-processing-foundation-fellowships/6168)

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**Author:** [@lmccart](https://discourse.processing.org/u/lmccart)\
**Replies:** 0\
**Last updated:** [December 2, 2018, 5:35pm UTC](https://discourse.processing.org/t/open-call-for-2019-processing-foundation-fellowships/6168 "2018-12-02T17:35:37Z")

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The Processing Foundation is currently accepting applications for the 2019 Fellowship Program. Processing Foundation Fellowships support artists, coders, and collectives in visionary projects that conceive a new directio…

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## [Turning processing file into a website?](https://discourse.processing.org/t/turning-processing-file-into-a-website/6166)

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**Author:** [@HelaRua](https://discourse.processing.org/u/HelaRua)\
**Replies:** 2\
**Last updated:** [December 2, 2018, 4:23pm UTC](https://discourse.processing.org/t/turning-processing-file-into-a-website/6166 "2018-12-02T16:23:42Z")

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Hi! Is there a way to take a processing file and make it a website? Also: is it possible to have have many people collaborate and make changes on it while being able to see each other’s changes in real-time? Thanks :sm…

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## [How to get pitch of human voice](https://discourse.processing.org/t/how-to-get-pitch-of-human-voice/5833)

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**Author:** [@emma](https://discourse.processing.org/u/emma)\
**Replies:** 5\
**Last updated:** [December 2, 2018, 7:30am UTC](https://discourse.processing.org/t/how-to-get-pitch-of-human-voice/5833 "2018-12-02T07:30:58Z")

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I’m trying to make a sketch that find the pitch of a human voice (speaking or singing). I thought I was headed in the right direction, but I’m getting stuck. Here is my strategy: Loop through all the frequencies in th…

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## [Making 3D planets](https://discourse.processing.org/t/making-3d-planets/6136)

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**Author:** [@nerdboybi](https://discourse.processing.org/u/nerdboybi)\
**Replies:** 6\
**Last updated:** [December 2, 2018, 1:42am UTC](https://discourse.processing.org/t/making-3d-planets/6136 "2018-12-02T01:42:03Z")

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Hello, so I have made this program where my planet rotates around the sun. final int SUN\_SIZE=50; final int planetSize=SUN\_SIZE/2; final int X\_RADIUS=150; final int Y\_RADIUS=35; float angle=0; final float SPEED=0.03; …

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## [How do I create regular spirograph curves around an asymmetrical shape](https://discourse.processing.org/t/how-do-i-create-regular-spirograph-curves-around-an-asymmetrical-shape/5501)

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**Author:** [@Rah](https://discourse.processing.org/u/Rah)\
**Replies:** 16\
**Last updated:** [December 1, 2018, 5:22pm UTC](https://discourse.processing.org/t/how-do-i-create-regular-spirograph-curves-around-an-asymmetrical-shape/5501 "2018-12-01T17:22:27Z")

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Hello! I’m desparate for a solution to my problem and very thankful for any kind of help. I’m new to this program and I need to find a way how to create regular spirograph-like curves around an asymmetrical shape. So n…

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## [Function wont work](https://discourse.processing.org/t/function-wont-work/6134)

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**Author:** [@kornFusion](https://discourse.processing.org/u/kornFusion)\
**Replies:** 4\
**Last updated:** [December 1, 2018, 5:06pm UTC](https://discourse.processing.org/t/function-wont-work/6134 "2018-12-01T17:06:43Z")

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Hey Everyone, I have coded a very simple game which works perfectly except the part where the player loses. I have a function called, dead with a condition that if deadSign == true show 2 pictures (PNG) which one of t…

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## [How to set these object in the back?](https://discourse.processing.org/t/how-to-set-these-object-in-the-back/6133)

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**Author:** [@ant](https://discourse.processing.org/u/ant)\
**Replies:** 7\
**Last updated:** [December 1, 2018, 4:48pm UTC](https://discourse.processing.org/t/how-to-set-these-object-in-the-back/6133 "2018-12-01T16:48:52Z")

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Having trouble getting the stars to be behind the building and the windows to be behind the water and the bridge. float time = 0; float\[\] a = new float\[2000\]; wall\[\]walls; void setup(){ size(1000,700); for (int i =…

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## [Processing Foundation logo too wide for mobile](https://discourse.processing.org/t/processing-foundation-logo-too-wide-for-mobile/5838)

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**Author:** [@Jakub](https://discourse.processing.org/u/Jakub)\
**Replies:** 8\
**Last updated:** [December 1, 2018, 4:33pm UTC](https://discourse.processing.org/t/processing-foundation-logo-too-wide-for-mobile/5838 "2018-12-01T16:33:14Z")

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Did the logo for this site change recently? My profile icon in the top right corner is now partly out of the screen and it’s hard to see when there is a notification badge on it.

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## [Upload files that are not images](https://discourse.processing.org/t/upload-files-that-are-not-images/5933)

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**Author:** [@josephh](https://discourse.processing.org/u/josephh)\
**Replies:** 12\
**Last updated:** [December 1, 2018, 4:29pm UTC](https://discourse.processing.org/t/upload-files-that-are-not-images/5933 "2018-12-01T16:29:23Z")

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Hello there, Can we authorize people to upload files that are not images (.jpg / .png type)? Like in this Discourse forum : https://discourse.mcneel.com/ Thanks again for the quality of this forum :slight\_smile:

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## [Displaying effect unwanted](https://discourse.processing.org/t/displaying-effect-unwanted/6129)

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**Author:** [@Pr0tonX](https://discourse.processing.org/u/Pr0tonX)\
**Replies:** 1\
**Last updated:** [December 1, 2018, 3:37pm UTC](https://discourse.processing.org/t/displaying-effect-unwanted/6129 "2018-12-01T15:37:26Z")

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Hello, I’m trying to remake the concept of the Patatap of jonobr1 ( see https://www.patatap.com/) wich is pretty cool : 1 song 1 shape according to the song, launched by your keyboard. So I’m stuck on only one animatio…

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## [Pushing cell agents](https://discourse.processing.org/t/pushing-cell-agents/6077)

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**Author:** [@solub](https://discourse.processing.org/u/solub)\
**Replies:** 5\
**Last updated:** [December 1, 2018, 1:42pm UTC](https://discourse.processing.org/t/pushing-cell-agents/6077 "2018-12-01T13:42:01Z")

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Hi, I’m trying to make a Cell Division and Growth algorithm where cell agents are pushed right next to neighboring cell just after the division process. I’d like the final output to look like a circle packing. Howeve…

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## [Jonno's Music Visualisers](https://discourse.processing.org/t/jonnos-music-visualisers/6132)

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**Author:** [@Uncle\_Jonno](https://discourse.processing.org/u/Uncle_Jonno)\
**Replies:** 2\
**Last updated:** [December 1, 2018, 2:50am UTC](https://discourse.processing.org/t/jonnos-music-visualisers/6132 "2018-12-01T02:50:22Z")

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Instead of spamming other threads, I thought I would make my own in the Beginner section. I’ve been having a go at music visualisers in Processing and MINIM. Sorry about the la…

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## [Applying two forces to particles](https://discourse.processing.org/t/applying-two-forces-to-particles/6127)

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**Author:** [@jmean](https://discourse.processing.org/u/jmean)\
**Replies:** 1\
**Last updated:** [December 1, 2018, 1:51am UTC](https://discourse.processing.org/t/applying-two-forces-to-particles/6127 "2018-12-01T01:51:31Z")

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Hi, I’m writing a sketch where I want many small particles to be attracted to large central particle, this is working. However I also want all small particles to repel from each other at the same time. I’ve tried a co…

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## [How can I make my game create a new ball and/or restart the code?](https://discourse.processing.org/t/how-can-i-make-my-game-create-a-new-ball-and-or-restart-the-code/6111)

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**Author:** [@BLy](https://discourse.processing.org/u/BLy)\
**Replies:** 6\
**Last updated:** [December 1, 2018, 12:39am UTC](https://discourse.processing.org/t/how-can-i-make-my-game-create-a-new-ball-and-or-restart-the-code/6111 "2018-12-01T00:39:17Z")

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I am currently trying to make it so when a button is clicked, it will create a new ball. I’m also trying to have another button that would completely restart the game. Can someone help me out please? My code is here: va…

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## [Volume control with analog sensor Arduino/ Processing](https://discourse.processing.org/t/volume-control-with-analog-sensor-arduino-processing/6122)

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**Author:** [@Pomdibow](https://discourse.processing.org/u/Pomdibow)\
**Replies:** 6\
**Last updated:** [December 1, 2018, 12:28am UTC](https://discourse.processing.org/t/volume-control-with-analog-sensor-arduino-processing/6122 "2018-12-01T00:28:06Z")

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Hi everyone, I would like to control the volume of my audio file or my video with a classic analog sensor. So I founded these sketchs to link Arduino and Processing and I modified it to map my volume but I don’t underst…

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## [Overlaying images with opacity using tint() in P3D](https://discourse.processing.org/t/overlaying-images-with-opacity-using-tint-in-p3d/6114)

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**Author:** [@currymike](https://discourse.processing.org/u/currymike)\
**Replies:** 5\
**Last updated:** [November 30, 2018, 6:37pm UTC](https://discourse.processing.org/t/overlaying-images-with-opacity-using-tint-in-p3d/6114 "2018-11-30T18:37:17Z")

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I’m playing around with overlaying two images in 3D space using P3D and tint(). When I bring the opacity of the front image down instead of seeing the image behind I get a black box. (see images below). I trying to cr…

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## [How to create the code of the following video effect?](https://discourse.processing.org/t/how-to-create-the-code-of-the-following-video-effect/6113)

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**Author:** [@Malvan](https://discourse.processing.org/u/Malvan)\
**Replies:** 1\
**Last updated:** [November 30, 2018, 4:11pm UTC](https://discourse.processing.org/t/how-to-create-the-code-of-the-following-video-effect/6113 "2018-11-30T16:11:13Z")

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Hello there! I was searching through the internet to find anything useful regarding to one of my school projects. I want to create something like this: https://vimeo.com/8218843 The problem is, I don’t really know wher…

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## [FATAL EXCEPTION: Animation Thread](https://discourse.processing.org/t/fatal-exception-animation-thread/5914)

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**Author:** [@Filipopl](https://discourse.processing.org/u/Filipopl)\
**Replies:** 1\
**Last updated:** [November 25, 2018, 1:01pm UTC](https://discourse.processing.org/t/fatal-exception-animation-thread/5914 "2018-11-25T13:01:07Z")

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Hello everybody. I’m new with Android Mode for processing and I’m trying to add opencv library but I get this error when i run: FATAL EXCEPTION: Animation Thread Process: processing.test.mhi, PID: 8129 java.lang.Unsatis…

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## [How to save 120 FFT values per second at 30 frames per second?](https://discourse.processing.org/t/how-to-save-120-fft-values-per-second-at-30-frames-per-second/6087)

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**Author:** [@Jan](https://discourse.processing.org/u/Jan)\
**Replies:** 2\
**Last updated:** [November 30, 2018, 8:55am UTC](https://discourse.processing.org/t/how-to-save-120-fft-values-per-second-at-30-frames-per-second/6087 "2018-11-30T08:55:48Z")

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My sketch will run at 30 frames per second. (much more will not be possible, its pretty much to render) But i need very detailed audio data of the audio input. If i save the values of the spectrum bands in every draw()…

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## [Minim AudioOutput and Oscil](https://discourse.processing.org/t/minim-audiooutput-and-oscil/2387)

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**Author:** [@maddyna](https://discourse.processing.org/u/maddyna)\
**Replies:** 2\
**Last updated:** [November 30, 2018, 2:12am UTC](https://discourse.processing.org/t/minim-audiooutput-and-oscil/2387 "2018-11-30T02:12:37Z")

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is there a good simple tutorial for Minim apart from http://code.compart where audio output mental.net creating Oscil and waveforms are discussed in a simple manner please advice

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## [Breaking out of For Loop when mouse is depressed?](https://discourse.processing.org/t/breaking-out-of-for-loop-when-mouse-is-depressed/6071)

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**Author:** [@DarkEco](https://discourse.processing.org/u/DarkEco)\
**Replies:** 2\
**Last updated:** [November 30, 2018, 1:20am UTC](https://discourse.processing.org/t/breaking-out-of-for-loop-when-mouse-is-depressed/6071 "2018-11-30T01:20:15Z")

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Hi, i’m quite new to coding in general and having a really hard time with this. Currently my loop is running from 0-1000 in a single click, but i need it to break out of the loop when i let go of the mouse. I’m guessing …

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## [Need help for a homework (should be ez for you )](https://discourse.processing.org/t/need-help-for-a-homework-should-be-ez-for-you/6082)

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**Author:** [@Robin73](https://discourse.processing.org/u/Robin73)\
**Replies:** 9\
**Last updated:** [November 30, 2018, 1:26am UTC](https://discourse.processing.org/t/need-help-for-a-homework-should-be-ez-for-you/6082 "2018-11-30T01:26:55Z")

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So i have to make spawn Random Howls with random abscissa, size, and grey shades. The problem is that they are spawning and they disappear and i don’t want them to disappear here’s the code. function setup(){ crea…

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## [P5.js online reference broken](https://discourse.processing.org/t/p5-js-online-reference-broken/6060)

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**Author:** [@ktorn](https://discourse.processing.org/u/ktorn)\
**Replies:** 2\
**Last updated:** [November 30, 2018, 1:09am UTC](https://discourse.processing.org/t/p5-js-online-reference-broken/6060 "2018-11-30T01:09:47Z")

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Seems like the p5.js online reference (https://p5js.org/reference/) is currently broken, with console errors: https://p5js.org/assets/js/p5.min.js 404 (Not Found) https://p5js.org/assets/js/p5.dom.min.js 404 (Not Found)…

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## [Is there a similar function to pushMatrix() and popMatrix() but instead for transforms its for functions like stroke() and strokeWeight()?](https://discourse.processing.org/t/is-there-a-similar-function-to-pushmatrix-and-popmatrix-but-instead-for-transforms-its-for-functions-like-stroke-and-strokeweight/6088)

<div class="topic-metadata">

**Author:** [@klaik30](https://discourse.processing.org/u/klaik30)\
**Replies:** 2\
**Last updated:** [November 30, 2018, 12:39am UTC](https://discourse.processing.org/t/is-there-a-similar-function-to-pushmatrix-and-popmatrix-but-instead-for-transforms-its-for-functions-like-stroke-and-strokeweight/6088 "2018-11-30T00:39:42Z")

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pushMatrix() and popMatrix() are super useful when I want to not destroy the current coordinate system and basically switch reference frame but in that reference frame, I might want to apply settings that only apply to t…

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