# Processing **URL:** https://discourse.processing.org/c/processing/6.md?no_subcategories=false&page=278 [Latest](https://discourse.processing.org/latest.md) · [Categories](https://discourse.processing.org/categories.md) · [Tags](https://discourse.processing.org/tags.md) **Page:** 279 --- ## [Need help with very simple animation new to processing](https://discourse.processing.org/t/need-help-with-very-simple-animation-new-to-processing/13328)
**Author:** [@Heatwave87](https://discourse.processing.org/u/Heatwave87)\ **Replies:** 3\ **Last updated:** [August 14, 2019, 1:09pm UTC](https://discourse.processing.org/t/need-help-with-very-simple-animation-new-to-processing/13328 "2019-08-14T13:09:21Z")
hi I’m really new to processing and I’m just wondering how I could make something like a rectangle for example disappear when I click and come back when I stop holding the click if anyone could help me with this I would… --- ## [Arraylist in a draw function](https://discourse.processing.org/t/arraylist-in-a-draw-function/13344)
**Author:** [@nicnut](https://discourse.processing.org/u/nicnut)\ **Replies:** 3\ **Last updated:** [August 14, 2019, 1:37pm UTC](https://discourse.processing.org/t/arraylist-in-a-draw-function/13344 "2019-08-14T13:37:17Z")
Hi, I am really new to processing. I am controlling my animations using OSC messages. I altered some code from one of the “create shapes” examples and I want to be able to control the number of items in an array list. I… --- ## [FX2D noSmooth(), textureSampling?](https://discourse.processing.org/t/fx2d-nosmooth-texturesampling/4312)
**Author:** [@lmccandless](https://discourse.processing.org/u/lmccandless)\ **Replies:** 1\ **Last updated:** [August 14, 2019, 11:13am UTC](https://discourse.processing.org/t/fx2d-nosmooth-texturesampling/4312 "2019-08-14T11:13:14Z")
The performance boost from FX2D is really nice, however I can’t seem to be able to turn off the smoothing. noSmooth() doesn’t work, before or after calling size(), in settings() or setup(); It doesn’t appear ((PGraphics… --- ## [Image and controlP5 library](https://discourse.processing.org/t/image-and-controlp5-library/13366)
**Author:** [@Mic29](https://discourse.processing.org/u/Mic29)\ **Replies:** 1\ **Last updated:** [August 14, 2019, 2:05am UTC](https://discourse.processing.org/t/image-and-controlp5-library/13366 "2019-08-14T02:05:54Z")
Is there any method to insert an image into a controlP5 Group? If not exist what is a possible solution to do this action? --- ## [Processing Export Fails No Matter What](https://discourse.processing.org/t/processing-export-fails-no-matter-what/13364)
**Author:** [@8bit\_coder](https://discourse.processing.org/u/8bit_coder)\ **Replies:** 3\ **Last updated:** [August 14, 2019, 1:33am UTC](https://discourse.processing.org/t/processing-export-fails-no-matter-what/13364 "2019-08-14T01:33:35Z")
I tried everything that people have suggested, such as moving the sketch and/or the processing files into the root C:\\ directory and that did nothing. I have no idea why this is happening because the program runs fine bu… --- ## [Shape parameter for 3D position](https://discourse.processing.org/t/shape-parameter-for-3d-position/13352)
**Author:** [@kll](https://discourse.processing.org/u/kll)\ **Replies:** 2\ **Last updated:** [August 14, 2019, 1:24am UTC](https://discourse.processing.org/t/shape-parameter-for-3d-position/13352 "2019-08-14T01:24:01Z")
i know from https://processing.org/reference/shape\_.html shape(s) shape(s, x, y) shape(s, a, b, c, d) and s.translate(x, y) also it is possible to use in P3D s.translate(x, y, z) what is additive, so s.reset… --- ## [Reference to default canvas/screen](https://discourse.processing.org/t/reference-to-default-canvas-screen/13351)
**Author:** [@danne](https://discourse.processing.org/u/danne)\ **Replies:** 1\ **Last updated:** [August 13, 2019, 9:19am UTC](https://discourse.processing.org/t/reference-to-default-canvas-screen/13351 "2019-08-13T09:19:48Z")
Hello! I want to send the default canvas/screen to a class. I can’t remember how to make a reference to the default canvas :confused: help please :wink: / Danne --- ## [Multiple classes eclipse with processing](https://discourse.processing.org/t/multiple-classes-eclipse-with-processing/1142)
**Author:** [@zejton](https://discourse.processing.org/u/zejton)\ **Replies:** 6\ **Last updated:** [August 13, 2019, 6:31am UTC](https://discourse.processing.org/t/multiple-classes-eclipse-with-processing/1142 "2019-08-13T06:31:31Z")
Hey! So I am new to processing and would love some help with how to get multiple classes working in eclipse with processing this is my code: This is one class “mouse”: import processing.core.PApplet; public class Mo… --- ## [3D shape with a bad seam](https://discourse.processing.org/t/3d-shape-with-a-bad-seam/13218)
**Author:** [@Chrisir](https://discourse.processing.org/u/Chrisir)\ **Replies:** 18\ **Last updated:** [August 13, 2019, 2:42am UTC](https://discourse.processing.org/t/3d-shape-with-a-bad-seam/13218 "2019-08-13T02:42:03Z")
Hello all, I produced a 3D quadt\_strip shape, but not only one row but multiple. It’s kind of a circle (Moebius strip). Unfortunately I have a big seam (horizontal right side) I cannot get rid of. Can someone check m… --- ## [\[SOLVED\] Delete circles if mousePressed help?](https://discourse.processing.org/t/solved-delete-circles-if-mousepressed-help/4056)
**Author:** [@Mikaela](https://discourse.processing.org/u/Mikaela)\ **Replies:** 2\ **Last updated:** [October 4, 2018, 1:47pm UTC](https://discourse.processing.org/t/solved-delete-circles-if-mousepressed-help/4056 "2018-10-04T13:47:18Z")
I’m trying to figure out what’s the code to make the circles disappear if the mouse is pressed. If you know what it is, please share it! I pasted my code below thanks! // Lab 3 Question 7 // Write a program that draws … --- ## [Check the number of people](https://discourse.processing.org/t/check-the-number-of-people/13309)
**Author:** [@jeeees2](https://discourse.processing.org/u/jeeees2)\ **Replies:** 5\ **Last updated:** [August 12, 2019, 11:57pm UTC](https://discourse.processing.org/t/check-the-number-of-people/13309 "2019-08-12T23:57:31Z")
Hi, I’m a beginner in processing. I try to check up to two people using the ‘Kinect divice and program.’ However, I try to print the result images differently from 0 to 1 person and the result images from 2 to 1. I can… --- ## [Atan function not working correctly?](https://discourse.processing.org/t/atan-function-not-working-correctly/13340)
**Author:** [@inzywinki](https://discourse.processing.org/u/inzywinki)\ **Replies:** 3\ **Last updated:** [August 12, 2019, 11:39pm UTC](https://discourse.processing.org/t/atan-function-not-working-correctly/13340 "2019-08-12T23:39:41Z")
i am trying the inverse tangent function in processing java, i am using the atan(float) function, when i use a paramater around 100 / 70 i am getting the wrong result, this is true for atan(100 / 75), atan(100 / 80) a… --- ## [How to import a Live stream link to processing?](https://discourse.processing.org/t/how-to-import-a-live-stream-link-to-processing/13217)
**Author:** [@luonglinhle](https://discourse.processing.org/u/luonglinhle)\ **Replies:** 3\ **Last updated:** [August 12, 2019, 10:58pm UTC](https://discourse.processing.org/t/how-to-import-a-live-stream-link-to-processing/13217 "2019-08-12T22:58:45Z")
Hi alls! I am newbie to Processing. I have an idea to create a visual interaction with live-stream video from facebook, twitter or from other source as Vimeo, youtube. I think what is needed is the IP address of the pe… --- ## [\[SOLVED\] How to debug this timeout error](https://discourse.processing.org/t/solved-how-to-debug-this-timeout-error/4383)
**Author:** [@ProsExplorer](https://discourse.processing.org/u/ProsExplorer)\ **Replies:** 0\ **Last updated:** [October 12, 2018, 6:04am UTC](https://discourse.processing.org/t/solved-how-to-debug-this-timeout-error/4383 "2018-10-12T06:04:20Z")
Conclusion: 10-15-2018 From what I’ve seen attempting to debug this and creating a hybrid version with an earlier boolean version there’s an issue with the classes function that causes the program to continuously load … --- ## [\[SOLVED\] Edge artifacts when random-access sampling a texture in a shader on Linux](https://discourse.processing.org/t/solved-edge-artifacts-when-random-access-sampling-a-texture-in-a-shader-on-linux/8382)
**Author:** [@scudly](https://discourse.processing.org/u/scudly)\ **Replies:** 0\ **Last updated:** [February 13, 2019, 10:30pm UTC](https://discourse.processing.org/t/solved-edge-artifacts-when-random-access-sampling-a-texture-in-a-shader-on-linux/8382 "2019-02-13T22:30:16Z")
Edit: This texture sampling bug only seems to occur on Linux. On both Windows 10 and Android, I can set point sampling with ((PGraphicsOpenGL)g).textureSampling(2); and get clean images, but on Linux, that line has no e… --- ## [\[SOLVED\] Downloading image, saving to specific folder](https://discourse.processing.org/t/solved-downloading-image-saving-to-specific-folder/11784)
**Author:** [@SoulT](https://discourse.processing.org/u/SoulT)\ **Replies:** 0\ **Last updated:** [June 2, 2019, 7:42pm UTC](https://discourse.processing.org/t/solved-downloading-image-saving-to-specific-folder/11784 "2019-06-02T19:42:35Z")
Howdy guys, I’m trying to set up a basic script that will download an image, and then save the image as a transparent PNG to a specific folder. Here’s what I have so far (I’ve replaced the url, for privacy sake. The act… --- ## [\[SOLVED\] G4p window refreshing](https://discourse.processing.org/t/solved-g4p-window-refreshing/3966)
**Author:** [@zeroisnull](https://discourse.processing.org/u/zeroisnull)\ **Replies:** 0\ **Last updated:** [September 30, 2018, 1:13am UTC](https://discourse.processing.org/t/solved-g4p-window-refreshing/3966 "2018-09-30T01:13:17Z")
Hello All. I am using G4P Library and I have made a form which takes username(textfield) and gender (droplist) but whenever i try to write something, the window keeps on refreshing. How do I tackle it? Edit: I was able… --- ## [PrintWriter - Disable Default UTF8 Encoding](https://discourse.processing.org/t/printwriter-disable-default-utf8-encoding/13316)
**Author:** [@ischmied](https://discourse.processing.org/u/ischmied)\ **Replies:** 3\ **Last updated:** [August 12, 2019, 8:26pm UTC](https://discourse.processing.org/t/printwriter-disable-default-utf8-encoding/13316 "2019-08-12T20:26:41Z")
From the Processing Reference: Starting with Processing release 0134, all files loaded and saved by the Processing API use UTF-8 encoding. I am reading the contents of an EPROM using an Arduino Uno and sending the data… --- ## [Quirks running Processing on Safari iOS](https://discourse.processing.org/t/quirks-running-processing-on-safari-ios/13342)
**Author:** [@rbytes](https://discourse.processing.org/u/rbytes)\ **Replies:** 0\ **Last updated:** [August 12, 2019, 5:34pm UTC](https://discourse.processing.org/t/quirks-running-processing-on-safari-ios/13342 "2019-08-12T17:34:10Z")
I am quite into OpenProcessing at this time. I use both Processing and p5.js to create sketches, but I have a few more issues to deal with when using Processing. The absolute worst is that every screen touch makes the co… --- ## [OpenProcessing + iOS Safari: How can I stop the console from popping up when no error has occurred](https://discourse.processing.org/t/openprocessing-ios-safari-how-can-i-stop-the-console-from-popping-up-when-no-error-has-occurred/13243)
**Author:** [@rbytes](https://discourse.processing.org/u/rbytes)\ **Replies:** 3\ **Last updated:** [August 12, 2019, 5:34pm UTC](https://discourse.processing.org/t/openprocessing-ios-safari-how-can-i-stop-the-console-from-popping-up-when-no-error-has-occurred/13243 "2019-08-12T17:34:10Z")
I spend a lot of time with my iPad running OpenProcessing on Safari and have a large collection of sketches written both in Processing and p5js. The Processing sketches have an annoying bug, at least in iOS. Every ti… --- ## [Having trouble with importing the video library](https://discourse.processing.org/t/having-trouble-with-importing-the-video-library/13266)
**Author:** [@ooss](https://discourse.processing.org/u/ooss)\ **Replies:** 2\ **Last updated:** [August 12, 2019, 4:31pm UTC](https://discourse.processing.org/t/having-trouble-with-importing-the-video-library/13266 "2019-08-12T16:31:58Z")
Hello currently I have downloaded the video library from GitHub and it downloaded a folder. I renamed the folder to just video and put in ~/Documents/Processing/Library. I am not sure if this is where it needs to be. But… --- ## [Help with controlP5 library](https://discourse.processing.org/t/help-with-controlp5-library/13290)
**Author:** [@arielmartire](https://discourse.processing.org/u/arielmartire)\ **Replies:** 3\ **Last updated:** [August 12, 2019, 4:28pm UTC](https://discourse.processing.org/t/help-with-controlp5-library/13290 "2019-08-12T16:28:29Z")
Using the controlP5 library, I’m having trouble. I get this error message: Aug 10, 2019 7:53:24 AM controlP5.ControlBroadcaster printMethodError SEVERE: An error occured while forwarding a Controller event, please ch… --- ## [\[SOLVED\] Having a hard time Translating in 3D](https://discourse.processing.org/t/solved-having-a-hard-time-translating-in-3d/13335)
**Author:** [@nicnut](https://discourse.processing.org/u/nicnut)\ **Replies:** 1\ **Last updated:** [August 12, 2019, 3:48pm UTC](https://discourse.processing.org/t/solved-having-a-hard-time-translating-in-3d/13335 "2019-08-12T15:48:11Z")
Hi, I am very new at Processing, this is my second week. I am altering some code from one of the examples to create a bunch of Pshapes. It’s looking good, but I can’t figure out how to translate() in P3D. In the main … --- ## [Help with visualising DHT sensor data](https://discourse.processing.org/t/help-with-visualising-dht-sensor-data/13331)
**Author:** [@figsgigs](https://discourse.processing.org/u/figsgigs)\ **Replies:** 2\ **Last updated:** [August 12, 2019, 2:51pm UTC](https://discourse.processing.org/t/help-with-visualising-dht-sensor-data/13331 "2019-08-12T14:51:40Z")
Hello good people here! I’m new to processing, and attempting to read my DHT11 sensor and visualising it via Processing. I’ve taken the processing/ arduino code from an online tutorial, and adapted it for my own arduino.… --- ## [Need a hint about lights](https://discourse.processing.org/t/need-a-hint-about-lights/13073)
**Author:** [@LuckSmith](https://discourse.processing.org/u/LuckSmith)\ **Replies:** 8\ **Last updated:** [August 11, 2019, 10:55pm UTC](https://discourse.processing.org/t/need-a-hint-about-lights/13073 "2019-08-11T22:55:12Z")
Hi guys, Here’s a screenshot of a sketch I am currently working on. On the upper left corner is a minimap of the dungeon (only tiles that have been seen are shown). The little green arrow there represents the player … --- ## [Sound libraries](https://discourse.processing.org/t/sound-libraries/13225)
**Author:** [@salvaribeiro](https://discourse.processing.org/u/salvaribeiro)\ **Replies:** 3\ **Last updated:** [August 11, 2019, 1:31pm UTC](https://discourse.processing.org/t/sound-libraries/13225 "2019-08-11T13:31:50Z")
Hello. I’ve been tinkering with Processing for a while now and wanted to use it to learn a bit about sound sythesizing. I’ve been trying the Beads library for about a month and, although it’s very good, I feel it’s a bit… --- ## [Help with classes](https://discourse.processing.org/t/help-with-classes/13305)
**Author:** [@abigail](https://discourse.processing.org/u/abigail)\ **Replies:** 5\ **Last updated:** [August 11, 2019, 10:29am UTC](https://discourse.processing.org/t/help-with-classes/13305 "2019-08-11T10:29:25Z")
Hi, so I have a simple sketch of paint to colour in the background of a window. I want to make the colouring tool decrease and increase in size. Why does the code in the function changeSize not work? Thanks in advance. … --- ## [Weird Missing Left Curly Bracket Error](https://discourse.processing.org/t/weird-missing-left-curly-bracket-error/13303)
**Author:** [@8bit\_coder](https://discourse.processing.org/u/8bit_coder)\ **Replies:** 2\ **Last updated:** [August 11, 2019, 1:30am UTC](https://discourse.processing.org/t/weird-missing-left-curly-bracket-error/13303 "2019-08-11T01:30:56Z")
I’m working on a program, and everything compiles and runs fine. But the second that I paste: char letter = 'F'; switch(letter) { case 'F': println("F"); break; case 'S': println("S"); break; } I… --- ## [Processing Update](https://discourse.processing.org/t/processing-update/13172)
**Author:** [@newagear](https://discourse.processing.org/u/newagear)\ **Replies:** 8\ **Last updated:** [August 10, 2019, 8:03pm UTC](https://discourse.processing.org/t/processing-update/13172 "2019-08-10T20:03:58Z")
I first developed a processing program 3 years ago.I believe that Processing needs an update(variable and instructions search list , a better debug system …).What do you think? --- ## [Problems parsing an UTF-8 string backwards](https://discourse.processing.org/t/problems-parsing-an-utf-8-string-backwards/13294)
**Author:** [@LuckSmith](https://discourse.processing.org/u/LuckSmith)\ **Replies:** 2\ **Last updated:** [August 10, 2019, 7:07pm UTC](https://discourse.processing.org/t/problems-parsing-an-utf-8-string-backwards/13294 "2019-08-10T19:07:53Z")
If I go forward like String str = "This is a string containing different encodings. В этой строке есть кириллица, например (2 bytes per char)"; for (int i=0; i\