# Latest

**URL:** https://discourse.processing.org/latest.md?page=369

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

**Page:** 370

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## [Processing Images and Video for An Impressionist Effect via PixelFlow](https://discourse.processing.org/t/processing-images-and-video-for-an-impressionist-effect-via-pixelflow/19292)

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**Author:** [@Morais](https://discourse.processing.org/u/Morais)\
**Replies:** 6\
**Last updated:** [April 6, 2020, 1:04pm UTC](https://discourse.processing.org/t/processing-images-and-video-for-an-impressionist-effect-via-pixelflow/19292 "2020-04-06T13:04:21Z")

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Hello everybody, I am not a English native and also I am new on Processing. I am trying to find some help to learn how to change the parameters of the stroke line (thickness, brushlike form, orientation of the line. et…

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## [Vertices from model](https://discourse.processing.org/t/vertices-from-model/19449)

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**Author:** [@pallavi24](https://discourse.processing.org/u/pallavi24)\
**Replies:** 1\
**Last updated:** [April 6, 2020, 1:00pm UTC](https://discourse.processing.org/t/vertices-from-model/19449 "2020-04-06T13:00:22Z")

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Is there any way to get vertices from a model (an obj uploaded to p5.js)

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## [Poincaré disk and hyperbolic geometry library](https://discourse.processing.org/t/poincare-disk-and-hyperbolic-geometry-library/19282)

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**Author:** [@jeykech](https://discourse.processing.org/u/jeykech)\
**Replies:** 2\
**Last updated:** [April 6, 2020, 12:26pm UTC](https://discourse.processing.org/t/poincare-disk-and-hyperbolic-geometry-library/19282 "2020-04-06T12:26:06Z")

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Hi guys, by any chance, is there any library to help me implement a Poincaré disk or a hyperbolic geometry transformation. I am looking to transform an euclidean geometry to it’s equivalent in hyperbolic geometry, a pa…

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## [Does PGraphics.image() modify colors at the borders?](https://discourse.processing.org/t/does-pgraphics-image-modify-colors-at-the-borders/18177)

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**Author:** [@LoliProcessor](https://discourse.processing.org/u/LoliProcessor)\
**Replies:** 7\
**Last updated:** [April 6, 2020, 11:17am UTC](https://discourse.processing.org/t/does-pgraphics-image-modify-colors-at-the-borders/18177 "2020-04-06T11:17:08Z")

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This is the source image . Init is drawn onto a red surface with some alpha, but the image itself is drawn at 255 alpha (using image method), and i checked the source image, the bottom, top and right border do not hav…

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## [Cool stuff made with propane](https://discourse.processing.org/t/cool-stuff-made-with-propane/19467)

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**Author:** [@monkstone](https://discourse.processing.org/u/monkstone)\
**Replies:** 0\
**Last updated:** [April 6, 2020, 10:51am UTC](https://discourse.processing.org/t/cool-stuff-made-with-propane/19467 "2020-04-06T10:51:15Z")

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I have recently updated my propane project (A simpler version of JRubyArt) to use jogl-2.4.0-rc, instead of the processings doctored version of jogl-2.3.2. Propane is a standalone ruby version of processing, somewhat bas…

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## [Difference between a TIFF file and Processing's TIFF file](https://discourse.processing.org/t/difference-between-a-tiff-file-and-processings-tiff-file/19239)

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**Author:** [@paulstgeorge](https://discourse.processing.org/u/paulstgeorge)\
**Replies:** 10\
**Last updated:** [April 6, 2020, 7:07am UTC](https://discourse.processing.org/t/difference-between-a-tiff-file-and-processings-tiff-file/19239 "2020-04-06T07:07:17Z")

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What are the differences between a tiff file and one of Processing’s tiff files? I ask because I need to load tiff files into a sketch. I can do this with one of Processing’s tiff files but not with other tiff files. I …

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## [Problem with german umlauts (UTF-8)](https://discourse.processing.org/t/problem-with-german-umlauts-utf-8/14995)

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**Author:** [@pauscha](https://discourse.processing.org/u/pauscha)\
**Replies:** 38\
**Last updated:** [November 6, 2019, 6:34pm UTC](https://discourse.processing.org/t/problem-with-german-umlauts-utf-8/14995 "2019-11-06T18:34:26Z")

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Hey everyone. I got a problem with a piece of code that worked some time (maybe a year) ago. When I print() a word containing any german umlaut, for example “Ü”, I get something like "ü ". Encoding selected in the andro…

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## [Jump method is getting stuck](https://discourse.processing.org/t/jump-method-is-getting-stuck/11995)

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**Author:** [@MCPepsh](https://discourse.processing.org/u/MCPepsh)\
**Replies:** 2\
**Last updated:** [March 18, 2020, 12:41pm UTC](https://discourse.processing.org/t/jump-method-is-getting-stuck/11995 "2020-03-18T12:41:39Z")

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I want to process a video frame by frame, but the jump(float where) method is either just taking ages or stuck in some kind of infinite loop or something like that. I used the Frames.pde example and just tweaked it a lit…

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## [Inability to save alpha channel](https://discourse.processing.org/t/inability-to-save-alpha-channel/19448)

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**Author:** [@Odermonicon](https://discourse.processing.org/u/Odermonicon)\
**Replies:** 1\
**Last updated:** [April 6, 2020, 6:11am UTC](https://discourse.processing.org/t/inability-to-save-alpha-channel/19448 "2020-04-06T06:11:22Z")

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I’m feeding it this image: And the code gives back complete black. PImage IMG; void setup() { background(128); size(500, 500); IMG = loadImage("test.png"); colorMode(HSB, 255); IMG.loadPixels(); for (int …

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## [Difficulty trying to maintain lighting on a wall](https://discourse.processing.org/t/difficulty-trying-to-maintain-lighting-on-a-wall/19253)

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**Author:** [@fchavat](https://discourse.processing.org/u/fchavat)\
**Replies:** 2\
**Last updated:** [April 5, 2020, 10:00pm UTC](https://discourse.processing.org/t/difficulty-trying-to-maintain-lighting-on-a-wall/19253 "2020-04-05T22:00:00Z")

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Hello!, I’m trying to simulate a moving wall and I have a ‘pointLight’ lighting from the position of the camera (approximately). The problem I’m having is that when the wall moves, the lighting starts to get darker (ev…

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## [Difficulty having two balls bounce against eachother without clipping](https://discourse.processing.org/t/difficulty-having-two-balls-bounce-against-eachother-without-clipping/19445)

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**Author:** [@worm888](https://discourse.processing.org/u/worm888)\
**Replies:** 1\
**Last updated:** [April 5, 2020, 9:17pm UTC](https://discourse.processing.org/t/difficulty-having-two-balls-bounce-against-eachother-without-clipping/19445 "2020-04-05T21:17:43Z")

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planangle = new PVector(location.x-plan.location.x, location.y-plan.location.y); // if (-90\<velocity.heading() && velocity.heading()\<90) { // planangle.rotate(PI); //} if (dist(location.x, location.y, plan.location.x, pl…

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## [Parsing online corona virus data into a map with Processing](https://discourse.processing.org/t/parsing-online-corona-virus-data-into-a-map-with-processing/19225)

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**Author:** [@tomjuggler](https://discourse.processing.org/u/tomjuggler)\
**Replies:** 1\
**Last updated:** [April 5, 2020, 9:10pm UTC](https://discourse.processing.org/t/parsing-online-corona-virus-data-into-a-map-with-processing/19225 "2020-04-05T21:10:36Z")

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The write-up is on my site here: https://www.circusscientist.com/parsing-online-corona-virus-data-into-a-map-with-processing/ I was inspired by a fellow South African developer who made an online map using data from t…

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## [How do you turn an ellipse into a button and when clicked it would show the data on the same screen?](https://discourse.processing.org/t/how-do-you-turn-an-ellipse-into-a-button-and-when-clicked-it-would-show-the-data-on-the-same-screen/19366)

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**Author:** [@Stage1](https://discourse.processing.org/u/Stage1)\
**Replies:** 13\
**Last updated:** [April 5, 2020, 8:49pm UTC](https://discourse.processing.org/t/how-do-you-turn-an-ellipse-into-a-button-and-when-clicked-it-would-show-the-data-on-the-same-screen/19366 "2020-04-05T20:49:49Z")

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Hello, im trying to figure out how i can turn my ellipse shapes to show some form of data but first it would need to be turned into a button. For example when you click the shape it should show the text next to it on the…

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## [Building application that uses image files](https://discourse.processing.org/t/building-application-that-uses-image-files/19444)

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**Author:** [@Nino](https://discourse.processing.org/u/Nino)\
**Replies:** 2\
**Last updated:** [April 5, 2020, 8:29pm UTC](https://discourse.processing.org/t/building-application-that-uses-image-files/19444 "2020-04-05T20:29:50Z")

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So I’m making a small game that uses images located in the folder of the processing files. In the editor it runs without any issues. however when i build it for Windows the aplication starts but is blank. Nothing is show…

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## [New to code, need help please!](https://discourse.processing.org/t/new-to-code-need-help-please/19202)

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**Author:** [@cakiru](https://discourse.processing.org/u/cakiru)\
**Replies:** 3\
**Last updated:** [April 5, 2020, 7:37pm UTC](https://discourse.processing.org/t/new-to-code-need-help-please/19202 "2020-04-05T19:37:37Z")

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if you could help me , im trying to make a loop rotate by clicking

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## [Optimising sine wave animation performance](https://discourse.processing.org/t/optimising-sine-wave-animation-performance/19188)

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**Author:** [@feyelaf](https://discourse.processing.org/u/feyelaf)\
**Replies:** 1\
**Last updated:** [April 5, 2020, 7:29pm UTC](https://discourse.processing.org/t/optimising-sine-wave-animation-performance/19188 "2020-04-05T19:29:44Z")

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Hi I have generated a sine wave animation from some of the p5 examples files and it is pretty much exactly how I would like it to animate. However I have noticed it does generate quite heavy processor usage. So I am gene…

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## [blendMode rendering issues p5.js](https://discourse.processing.org/t/blendmode-rendering-issues-p5-js/19179)

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**Author:** [@artforart](https://discourse.processing.org/u/artforart)\
**Replies:** 1\
**Last updated:** [April 5, 2020, 6:41pm UTC](https://discourse.processing.org/t/blendmode-rendering-issues-p5-js/19179 "2020-04-05T18:41:32Z")

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I keep running into performance issues trying to visualize some simplex noise – using about 1700 circle objects. Setting the blendMode(MULTIPLY) in the setup function has been producing some laggy results. See this co…

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## [Get array to loop images](https://discourse.processing.org/t/get-array-to-loop-images/19435)

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**Author:** [@Banana132](https://discourse.processing.org/u/Banana132)\
**Replies:** 2\
**Last updated:** [April 5, 2020, 6:39pm UTC](https://discourse.processing.org/t/get-array-to-loop-images/19435 "2020-04-05T18:39:06Z")

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Hi ther, So im trying to get an array of images to loop however, i have set up the array and loops correctly, however it only shows one image where as i need it to loop and then stop at the last image. //explosion imag…

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## [Image processing based on mouse position and different window size](https://discourse.processing.org/t/image-processing-based-on-mouse-position-and-different-window-size/19201)

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**Author:** [@alex119](https://discourse.processing.org/u/alex119)\
**Replies:** 1\
**Last updated:** [April 5, 2020, 6:05pm UTC](https://discourse.processing.org/t/image-processing-based-on-mouse-position-and-different-window-size/19201 "2020-04-05T18:05:56Z")

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Hell everyone, I am completely new to processing and I’m following the tutorials series. I am at “Images and pixels” tutorial and I made the “Adjusting image brightness” exercise which is based on mouse position. My qu…

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## [Why does the error comes even though the function is defined?](https://discourse.processing.org/t/why-does-the-error-comes-even-though-the-function-is-defined/19440)

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**Author:** [@Rohit](https://discourse.processing.org/u/Rohit)\
**Replies:** 1\
**Last updated:** [April 5, 2020, 6:01pm UTC](https://discourse.processing.org/t/why-does-the-error-comes-even-though-the-function-is-defined/19440 "2020-04-05T18:01:40Z")

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here is the link to my project https://editor.p5js.org/rohitgokul817/sketches/yhOcLU2KX please help me to figure out the error the function is defined buti am getting the error Uncaught ReferenceError: antsweets is not …

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## [Program that runs in background but can be reopened](https://discourse.processing.org/t/program-that-runs-in-background-but-can-be-reopened/19180)

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**Author:** [@FinleyOderSo](https://discourse.processing.org/u/FinleyOderSo)\
**Replies:** 1\
**Last updated:** [April 5, 2020, 5:57pm UTC](https://discourse.processing.org/t/program-that-runs-in-background-but-can-be-reopened/19180 "2020-04-05T17:57:52Z")

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Hi, I want to create a program that runs in background but can be reopened (getting back the visual appearance) via this menu: I hope you understand what I mean. But I don’t even know how such programs are called so…

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## [P5 manager -- customizing files](https://discourse.processing.org/t/p5-manager-customizing-files/19148)

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**Author:** [@r8th](https://discourse.processing.org/u/r8th)\
**Replies:** 5\
**Last updated:** [April 5, 2020, 4:53pm UTC](https://discourse.processing.org/t/p5-manager-customizing-files/19148 "2020-04-05T16:53:26Z")

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hi! I’ve been exploring p5 Manager. Does anyone know if there is a way to get it to create a customized files? For example, I’d like to use it to create a separate CSS file rather than have it write the style into the h…

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## [How to add multiple waves and different colours?](https://discourse.processing.org/t/how-to-add-multiple-waves-and-different-colours/19169)

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**Author:** [@firetryer](https://discourse.processing.org/u/firetryer)\
**Replies:** 0\
**Last updated:** [March 30, 2020, 7:27am UTC](https://discourse.processing.org/t/how-to-add-multiple-waves-and-different-colours/19169 "2020-03-30T07:27:28Z")

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import processing.sound.\*; SoundFile song; int n; Circle\[\] ellipse; float ty = 0; float noiseScale = 0.02; void setup() { size(400,400); song = new SoundFile(this, "kgf.mp3"); song.loop(); n =100; ellip…

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## [noStroke() affects shapes above and below](https://discourse.processing.org/t/nostroke-affects-shapes-above-and-below/19412)

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**Author:** [@jrobthehuman](https://discourse.processing.org/u/jrobthehuman)\
**Replies:** 3\
**Last updated:** [April 5, 2020, 4:12pm UTC](https://discourse.processing.org/t/nostroke-affects-shapes-above-and-below/19412 "2020-04-05T16:12:40Z")

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Hello everyone. Absolute beginner here, and I appreciate your help already. I’m using the Make: Getting Started with p5.js book, and I’m confused about example 3-15. Using noStroke() affects all the shapes, when I belie…

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## [Looking for tricks](https://discourse.processing.org/t/looking-for-tricks/19394)

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**Author:** [@Helron](https://discourse.processing.org/u/Helron)\
**Replies:** 6\
**Last updated:** [April 5, 2020, 3:28pm UTC](https://discourse.processing.org/t/looking-for-tricks/19394 "2020-04-05T15:28:57Z")

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Hello, I am looking for tips and tricks … more than exemples that i can find… does it exist a collection of solutions for common develloppement need ? Ex : Buttons : imgcoord + mouse click or P5 library or distance to…

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## [Datatype for color](https://discourse.processing.org/t/datatype-for-color/19427)

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**Author:** [@hartelius](https://discourse.processing.org/u/hartelius)\
**Replies:** 1\
**Last updated:** [April 5, 2020, 11:43am UTC](https://discourse.processing.org/t/datatype-for-color/19427 "2020-04-05T11:43:42Z")

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Why does this print FF000000 and not 000000? color setC = color(0, 0, 0); println(hex(setC));

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## [Facing error "Failed to load resource: the server responded with a status of 404 (Not Found)" in web browse console](https://discourse.processing.org/t/facing-error-failed-to-load-resource-the-server-responded-with-a-status-of-404-not-found-in-web-browse-console/2433)

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**Author:** [@satyamgaba](https://discourse.processing.org/u/satyamgaba)\
**Replies:** 22\
**Last updated:** [April 5, 2020, 11:43am UTC](https://discourse.processing.org/t/facing-error-failed-to-load-resource-the-server-responded-with-a-status-of-404-not-found-in-web-browse-console/2433 "2020-04-05T11:43:09Z")

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I was trying to follow this tutorial. At ‘10:40’ I see the blank page in web browser. My server is running like the tutorial. When I checked the console of the webpage in the web browser. I saw that following errors: …

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## [Some of my experiments](https://discourse.processing.org/t/some-of-my-experiments/19105)

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**Author:** [@hamoid](https://discourse.processing.org/u/hamoid)\
**Replies:** 3\
**Last updated:** [April 5, 2020, 10:32am UTC](https://discourse.processing.org/t/some-of-my-experiments/19105 "2020-04-05T10:32:30Z")

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Hi! :slight\_smile: 12 days ago I started uploading one sketch per day from my ideas folder. I do that while having breakfast every morning. Some will be more visual, others will be less so (testing data structures, perf…

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## [Print Ordered Numbers in Program](https://discourse.processing.org/t/print-ordered-numbers-in-program/19386)

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**Author:** [@TeaTea](https://discourse.processing.org/u/TeaTea)\
**Replies:** 3\
**Last updated:** [April 5, 2020, 10:06am UTC](https://discourse.processing.org/t/print-ordered-numbers-in-program/19386 "2020-04-05T10:06:09Z")

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hello anyone who reads this :smile: i’m new to coding, i am trying to create things to practice coding, so i went to this page : http://www.beginwithjava.com/java/loops/questions.html because i saw that in processing,…

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## [Zero boilerplate philosophy - an important ingredient for teaching text based coding](https://discourse.processing.org/t/zero-boilerplate-philosophy-an-important-ingredient-for-teaching-text-based-coding/19318)

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**Author:** [@codeguppy](https://discourse.processing.org/u/codeguppy)\
**Replies:** 3\
**Last updated:** [April 4, 2020, 11:04pm UTC](https://discourse.processing.org/t/zero-boilerplate-philosophy-an-important-ingredient-for-teaching-text-based-coding/19318 "2020-04-04T23:04:38Z")

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I was just reading an article in a MagPi booklet about GPIOZero. The article mentioned how this nice Python library for physical computing got it’s name. It was basically designed with “Zero boilerplate philosophy” in mi…

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