# Latest
**URL:** https://discourse.processing.org/latest.md?no_subcategories=false&page=370
[Latest](https://discourse.processing.org/latest.md) · [Categories](https://discourse.processing.org/categories.md) · [Tags](https://discourse.processing.org/tags.md)
**Page:** 371
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## [How can I start filePlayer from a given second? - New and going bananas](https://discourse.processing.org/t/how-can-i-start-fileplayer-from-a-given-second-new-and-going-bananas/19403)
Hi, so I’m very very new to processing and minim and I’m trying to get a filePlayer to start playing from a given second/millisecond. This is the code part where I’m calling the file to play: void mousePressed(){ if(mou…
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## [NFC on Android?](https://discourse.processing.org/t/nfc-on-android/19126)
Hello I had the idea of making a Monopoly money manager that uses NFC tags, kind of like contact less credit cards. I did some research and found the Ketai library, which appears to no longer support NFC, after both re…
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## [Sprites library pp\_collision()](https://discourse.processing.org/t/sprites-library-pp-collision/19411)
When you use: loadImage ('urldeoutrohost.jpg', img =\> { image (img, 0.0); }); It ends up giving CORS error if you are not using a CORS extension. I would like to know if there is any way to solve this ?, why didn’…
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## [Sharing variables between different instance mode sketches](https://discourse.processing.org/t/sharing-variables-between-different-instance-mode-sketches/19264)
or having a global variable that could be accessed by different instance mode sketches. I have been looking around but I don’t seem to understand how to do it, any example that could illuminate me? best!
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## [Looking for a Tutor](https://discourse.processing.org/t/looking-for-a-tutor/19229)
Anywhere I can find a tutor for cheap? New to processing and need help!
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## [Modifying a grid](https://discourse.processing.org/t/modifying-a-grid/19298)
I am using processing connected to an Arduino with a sensor sheet. The output is a in java mode showing a mapped grid as shown in the attached image. I am wondering how I can curve the corners of the grid so that is in 3…
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## ["2001: A Space Odyssey" retold using Processing](https://discourse.processing.org/t/2001-a-space-odyssey-retold-using-processing/13864)
Hello World and dear Processing community! Here’s my first Processing project I’d like to share with you guys. The idea: feed the program with a database of images calculate the average color of each image in the dat…
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## [Shader shows as white instead of the actual shader (Not applied correctly)](https://discourse.processing.org/t/shader-shows-as-white-instead-of-the-actual-shader-not-applied-correctly/19393)
Hello, I programmed a little shader using C++ OpenGL to compile and run it today and I’m doing an numerical art exhibition using mainly processing, I want to use this shader in the show and thus have to make the shader w…
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## [Rotating objects inside the canvas](https://discourse.processing.org/t/rotating-objects-inside-the-canvas/19387)
I’m missuderstanding the combination of translate(), rotate(), pushmatrix() and popmatrix(); In the example, I’m trying to rotate the sinus functions after translating the matrix to its origin, but obviosuly there’s ma…
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## [How could I make p5 work in a cartesian coordinate system?](https://discourse.processing.org/t/how-could-i-make-p5-work-in-a-cartesian-coordinate-system/19376)
I kind of get what I want but I still have problems using mouseX and mouseY, they don’t work propertly when I try to change it.
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## [Turning on the android notification RGB LED](https://discourse.processing.org/t/turning-on-the-android-notification-rgb-led/19373)
Hi Guys. I’m looking for a code that turn on the android notification LED in red or green or blue or mix between them. Do you know how to code that?
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## [Bar chart to track Corona Virus increase in my country](https://discourse.processing.org/t/bar-chart-to-track-corona-virus-increase-in-my-country/19382)
I am continuing building an Android app to track Corona Virus increase in my country (South Africa). Mostly using Processing for the visualisations. Here is the Chart component, with code linked on github (works in Ja…
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## [Green NullPointerExeption](https://discourse.processing.org/t/green-nullpointerexeption/19377)
MCVEimport Green.\*; class ExampleActor extends Actor { public ExampleActor(float x, float y, int w, int h) { super(x, y, w, h); // Line causing error } public void act(float deltaTime) { } } ExampleActor …
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## [Python syntax to use File.separator](https://discourse.processing.org/t/python-syntax-to-use-file-separator/19378)
My instructor uses the Java syntax in Processing, and I’m trying to convert it to Python. The relevant part of his code is: //Global variables String fname4 = "gumballs.jpg"; String loadName = fname4; int ncolors = 8; …
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## [Self made class, not returning when it a loop?](https://discourse.processing.org/t/self-made-class-not-returning-when-it-a-loop/19220)
Ship findShip(int\[\] coordinates){ for (int i = 0; i \< ships.size();i++){ Ship ship = ships.get(i); int shipX = ship.x; int shipY = ship.y; for (int tile = 0; tile \< ship.size; tile++){ if (ship.ro…
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## [Trying Curve on a Sphere. Can't seem to get the rise and fall of the curve right](https://discourse.processing.org/t/trying-curve-on-a-sphere-cant-seem-to-get-the-rise-and-fall-of-the-curve-right/19355)
Was trying something like this: But my curves were all wrong…And I ended up with something like this. The code is inserted below: float angle; float r = 200; Table table; PImage earth; PShape globe; int rowCoun…
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## [Multiple Volume Controls on Multiple Sound Files](https://discourse.processing.org/t/multiple-volume-controls-on-multiple-sound-files/19360)
Hello! I’m fairly new to p5.js and am trying to create a very simple audio crossfader that allows you to listen to 2 sound files at once, and control the mix by moving the mouse along the X axis. I am getting stuck whe…
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## [Convert Latitude and Longitude from a Data sheet to points on canvas](https://discourse.processing.org/t/convert-latitude-and-longitude-from-a-data-sheet-to-points-on-canvas/19160)
Hi, I’m having an issue in my beginning coding class. I want to take the latitude and longitude for cave locations in Missouri and put them over an image of the state where they are. I have an excel sheet with the latitu…
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## [Stuck on Loading](https://discourse.processing.org/t/stuck-on-loading/19370)
Hi. I’m trying to get familiar with JS using p5.js. I downloaded p5.js complete, headed to the Get Started page and, as described, typed ellipse(50, 50, 80, 80); in my (desktop) editor to test it out. In Firefox, the…
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## [I need help making the pictures stay until next is pressed](https://discourse.processing.org/t/i-need-help-making-the-pictures-stay-until-next-is-pressed/19273)
Can someone please help Heres the code: var drop = \[\]; let images = \["images (9).jpeg","images (10).jpeg", "images (8).jpeg", "images (7).jpeg", "images (5).jpeg", "images (6).jpeg" \]; let current = 1; function setu…
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## [My personal Processing trap](https://discourse.processing.org/t/my-personal-processing-trap/18985)
Soo… I’m writing this coming off of yet another frustrating experience trying to get a sketch to work. It’s wordy and somewhat meta, so bear with me. Also, I have yet no idea, if I’m actually looking for answers or just …
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## [How to correcly apply SVG filters on the canvas?](https://discourse.processing.org/t/how-to-correcly-apply-svg-filters-on-the-canvas/19347)
Hi, I am trying to apply a SVG filter on a sketch by accessing the context of the canvas (ctx = canvas.getContext("2d")) and pasting the following in the index.html file: \
\ \
Hi, I’m Yuki, and I’m a computer science at Sapienza University of Rome. I’m interested in the Internationalization improvements project for the GSoC20 and, as a native Italian speaker, I would like to work on an Italia…
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## [Circular coordinates](https://discourse.processing.org/t/circular-coordinates/19344)
how to make this circular coordinates more evenly distributed? …will say; the inner ring less dot frequency becoming more to the outer. maybe fibionacci like…? thank you! float px, py; float angle; float radius = width/…
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## [Smartphone lantern flashlight on/off](https://discourse.processing.org/t/smartphone-lantern-flashlight-on-off/19324)
Hello, dear friends, I am getting started in the programming for android, and I want to do something simple, by pressing the screen to turn on / off the flashlight of the smartphone. Does anyone know how to do it? Chee…
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## [Can't open an url with loadJSONObject but it works with HTTP Library](https://discourse.processing.org/t/cant-open-an-url-with-loadjsonobject-but-it-works-with-http-library/19293)
Hello! I got a problem that I can’t understand. I need to load this url into a Processing sketch: https://www.colourlovers.com/api/palettes/top?format=json I used loadJSONArray without any problem in the past but now I …
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## [Renderer Problems - Login System and Menu](https://discourse.processing.org/t/renderer-problems-login-system-and-menu/19331)
Sorry, but I’m inexperienced in Processing. I have um little test code where one menu open after login accepted. The two functions work individually, but when I put them together I have this error “translate(), or this…
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## [What does add() do?](https://discourse.processing.org/t/what-does-add-do/19356)
So I have a code: class Projectile extends PVector { PVector velocity; Projectile(PVector loc, PVector vel) { super(loc.x, loc.y); velocity = vel; } void Display() { add(velocity); // what…
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## [Turn line on angle](https://discourse.processing.org/t/turn-line-on-angle/19349)
Hi, I’m kinda new here and need a little help! I made a line that moves along the arrrow keys and speeds up when the space bar is pressed. In my code when the line changes its direction it makes a corner (see left), but…
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