# Beginners

**URL:** https://discourse.processing.org/c/processing/processing-beginners/14.md?page=40

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

**Page:** 41

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## [Loading a file results in weird chars](https://discourse.processing.org/t/loading-a-file-results-in-weird-chars/1947)

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**Author:** [@Grimtin10](https://discourse.processing.org/u/Grimtin10)\
**Replies:** 4\
**Last updated:** [July 22, 2018, 5:07am UTC](https://discourse.processing.org/t/loading-a-file-results-in-weird-chars/1947 "2018-07-22T05:07:46Z")

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im loading a hexadecimal file, and i put ff, it returns FFFD. any help? -Grim

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## [Print the value of a function](https://discourse.processing.org/t/print-the-value-of-a-function/1902)

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**Author:** [@Javier](https://discourse.processing.org/u/Javier)\
**Replies:** 3\
**Last updated:** [July 19, 2018, 4:59pm UTC](https://discourse.processing.org/t/print-the-value-of-a-function/1902 "2018-07-19T16:59:25Z")

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Hi all¡¡ I have defined a very simple function that transfer fahrenheit to celsius and I want to introduce as a variable the Fharenheit and return Celsius. I would like to print the value of the Celsius but i cant undest…

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## [Processing won't launch 3.3.7 Windows 10](https://discourse.processing.org/t/processing-wont-launch-3-3-7-windows-10/1893)

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**Author:** [@DevilishTruthStare](https://discourse.processing.org/u/DevilishTruthStare)\
**Replies:** 2\
**Last updated:** [July 19, 2018, 5:30am UTC](https://discourse.processing.org/t/processing-wont-launch-3-3-7-windows-10/1893 "2018-07-19T05:30:05Z")

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I just downloaded processing and the program doesn’t launch. I read through this page and it seems like I should be able to just download the file, extract it and run the .exe, However when I do so, I get the loading scr…

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## [Testing for function keys in Processing 3.3.7](https://discourse.processing.org/t/testing-for-function-keys-in-processing-3-3-7/1891)

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**Author:** [@MCCreeper8890](https://discourse.processing.org/u/MCCreeper8890)\
**Replies:** 4\
**Last updated:** [July 19, 2018, 3:47am UTC](https://discourse.processing.org/t/testing-for-function-keys-in-processing-3-3-7/1891 "2018-07-19T03:47:03Z")

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I am developing a “simple” game based around the QueasyCam library. So far, I have implemented terrain generation and a skydome. The things I will put in next are player movement, third-person capability, surface physics…

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## [How to make this boxes animation](https://discourse.processing.org/t/how-to-make-this-boxes-animation/1782)

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**Author:** [@carlwh123](https://discourse.processing.org/u/carlwh123)\
**Replies:** 13\
**Last updated:** [July 18, 2018, 6:53am UTC](https://discourse.processing.org/t/how-to-make-this-boxes-animation/1782 "2018-07-18T06:53:23Z")

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Hi guys, This is my first post here and I’m a beginner so I’m happy for you to explain anything you feel is relevant or link me any good resources. I have watched all the Daniel Shiffman (love that guy!) videos. I’m th…

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## [Rotating Lines Around A circle](https://discourse.processing.org/t/rotating-lines-around-a-circle/1791)

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**Author:** [@AnthonyMG](https://discourse.processing.org/u/AnthonyMG)\
**Replies:** 1\
**Last updated:** [July 15, 2018, 4:58pm UTC](https://discourse.processing.org/t/rotating-lines-around-a-circle/1791 "2018-07-15T16:58:26Z")

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Hello, I am trying to rotate 15 lines around the center point of a circle in unison. The lines start at the correct positions, but they rotate at different speeds. Thanks for any help! // GLOBAL VARIABLES final int SUN…

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## [Retrieve web page from remote browser](https://discourse.processing.org/t/retrieve-web-page-from-remote-browser/1784)

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**Author:** [@jorgeeduardojonas](https://discourse.processing.org/u/jorgeeduardojonas)\
**Replies:** 1\
**Last updated:** [July 15, 2018, 4:43pm UTC](https://discourse.processing.org/t/retrieve-web-page-from-remote-browser/1784 "2018-07-15T16:43:20Z")

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Hello! I was wondering if it is possible to “grab” a web page direction from different computers, smartphones, etc. and open in it in a target computer or server computer…Is this possible? Could someone please point me…

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## [Audio Visualisation](https://discourse.processing.org/t/audio-visualisation/1576)

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**Author:** [@rioma7](https://discourse.processing.org/u/rioma7)\
**Replies:** 7\
**Last updated:** [July 13, 2018, 11:47pm UTC](https://discourse.processing.org/t/audio-visualisation/1576 "2018-07-13T23:47:17Z")

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Hi FOLKS… I am super sad because I am struggling a lot with a program I am trying to code it since long…but I cannot figure out how to do it!!! So what I want to do is: When I press the R (keypressed) it records the a…

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## [Shoe insole pressure sensing map](https://discourse.processing.org/t/shoe-insole-pressure-sensing-map/1549)

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**Author:** [@m.berlin](https://discourse.processing.org/u/m.berlin)\
**Replies:** 11\
**Last updated:** [July 13, 2018, 2:56am UTC](https://discourse.processing.org/t/shoe-insole-pressure-sensing-map/1549 "2018-07-13T02:56:02Z")

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Hey everyone! I have made a shoe-insole with a pressure sensor array in form of rows and columns and a velostat between both layers. So know my idea is to make a visualized presentation of the insole and to show on the …

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## [Change Processing code to p5.js](https://discourse.processing.org/t/change-processing-code-to-p5-js/1709)

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**Author:** [@chloe](https://discourse.processing.org/u/chloe)\
**Replies:** 4\
**Last updated:** [July 12, 2018, 2:16pm UTC](https://discourse.processing.org/t/change-processing-code-to-p5-js/1709 "2018-07-12T14:16:47Z")

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Hi I’m looking to change some Processing code into p5.js code. I’m super new to both Processing and p5.js so I’m wondering if anyone can help transfer the bottom Processing code into p5.js compatible code. Please help! T…

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## [Sending Data wireless](https://discourse.processing.org/t/sending-data-wireless/1330)

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**Author:** [@netphysicist](https://discourse.processing.org/u/netphysicist)\
**Replies:** 6\
**Last updated:** [July 11, 2018, 3:42pm UTC](https://discourse.processing.org/t/sending-data-wireless/1330 "2018-07-11T15:42:38Z")

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Hello, i want to make a project/app, in which i could send txt files from my device to the PC with wireless connection…I am studying right now about oscP5 library and making connection between devices…My question is if …

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## [Processing + Leap Motion data + Arduino LED pins](https://discourse.processing.org/t/processing-leap-motion-data-arduino-led-pins/1689)

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**Author:** [@iamamiwhoami91](https://discourse.processing.org/u/iamamiwhoami91)\
**Replies:** 1\
**Last updated:** [July 11, 2018, 2:37pm UTC](https://discourse.processing.org/t/processing-leap-motion-data-arduino-led-pins/1689 "2018-07-11T14:37:30Z")

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Dear all, I am trying use the Leap Motion sensor data to turn LED pins on and off using Arduino. Right now I am using a processing code that controls LED pins according to the hand position (x). I am trying to figure ou…

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## [Generating as many bisecting lines of a circle as possible](https://discourse.processing.org/t/generating-as-many-bisecting-lines-of-a-circle-as-possible/1653)

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**Author:** [@Fhyrestar](https://discourse.processing.org/u/Fhyrestar)\
**Replies:** 2\
**Last updated:** [July 10, 2018, 6:14pm UTC](https://discourse.processing.org/t/generating-as-many-bisecting-lines-of-a-circle-as-possible/1653 "2018-07-10T18:14:44Z")

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Hello! I’ve just discovered Processing, and I’m playing around with it because it seems cool. I’m trying to draw ~30 lines of symmetry in a circle. Well, more specifically, I’m drawing ~30 lines of symmetry in three o…

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## [Basic questions possibly related to how Draw() works](https://discourse.processing.org/t/basic-questions-possibly-related-to-how-draw-works/1651)

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**Author:** [@rharbert](https://discourse.processing.org/u/rharbert)\
**Replies:** 2\
**Last updated:** [July 10, 2018, 12:42pm UTC](https://discourse.processing.org/t/basic-questions-possibly-related-to-how-draw-works/1651 "2018-07-10T12:42:00Z")

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Hi Everyone, I’m new to Processing and can’t figure out a couple things about the code below. When I execute the code, it draws either one line or no line at all. Maybe one out of every 4 or 5 runs actually draws a l…

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## [Problem with scenes management on processing.js](https://discourse.processing.org/t/problem-with-scenes-management-on-processing-js/1543)

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**Author:** [@Vik007](https://discourse.processing.org/u/Vik007)\
**Replies:** 2\
**Last updated:** [July 10, 2018, 9:07am UTC](https://discourse.processing.org/t/problem-with-scenes-management-on-processing-js/1543 "2018-07-10T09:07:03Z")

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Hi, I´m studying in Khan Academy “processing.js” I haven’t seen an specific category for processing.js so I´ll ask here. Ask a question Questions Tips & Thanks Top Recent I am coding a side scroll game and I have cr…

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## [Ayuda! Como hacer que una figura tome una nueva posición aleatoria?](https://discourse.processing.org/t/ayuda-como-hacer-que-una-figura-tome-una-nueva-posicion-aleatoria/1587)

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**Author:** [@lu4425](https://discourse.processing.org/u/lu4425)\
**Replies:** 11\
**Last updated:** [July 9, 2018, 10:00am UTC](https://discourse.processing.org/t/ayuda-como-hacer-que-una-figura-tome-una-nueva-posicion-aleatoria/1587 "2018-07-09T10:00:58Z")

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Hola! Si alguien me puede ayudar se lo agradecería mucho! Tengo que dibujar dos figuras (circulo de 40 de diámetro y cuadrado de 30 x 30), y necesito que al clickear sobre alguna de estas figuras, pasen a tener un nu…

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## [Looking for some advice using PShape & .svg](https://discourse.processing.org/t/looking-for-some-advice-using-pshape-svg/1410)

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**Author:** [@red](https://discourse.processing.org/u/red)\
**Replies:** 2\
**Last updated:** [July 8, 2018, 10:30pm UTC](https://discourse.processing.org/t/looking-for-some-advice-using-pshape-svg/1410 "2018-07-08T22:30:52Z")

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Hello Processing Forum, I’m a beginner and this is my first post. I wrote a little sketch which animates simple and more or less complex shapes around the screen. I’ve been using shape primitives like rect(), ellipse(…

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## [How can i do this?](https://discourse.processing.org/t/how-can-i-do-this/1548)

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**Author:** [@Cuchis](https://discourse.processing.org/u/Cuchis)\
**Replies:** 2\
**Last updated:** [July 6, 2018, 1:00pm UTC](https://discourse.processing.org/t/how-can-i-do-this/1548 "2018-07-06T13:00:34Z")

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Hi, Im new to processing and i have a question. I need to do this image, circles on x and y axis where there is an increase of circles as shown in the image. This is what i have so far: int x; int y; int max,may; s…

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## [Change color of the shapes with audio](https://discourse.processing.org/t/change-color-of-the-shapes-with-audio/1495)

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**Author:** [@IlPastaio](https://discourse.processing.org/u/IlPastaio)\
**Replies:** 2\
**Last updated:** [July 5, 2018, 1:08am UTC](https://discourse.processing.org/t/change-color-of-the-shapes-with-audio/1495 "2018-07-05T01:08:09Z")

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Hello everyone, I need your help for a project I’m creating. First of all, I’m a complete noob! So try to be as simple as possible with me please. Basically I’ve created this simple draw and I need that every shape ins…

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## [How to get section of pixels from entire screen?](https://discourse.processing.org/t/how-to-get-section-of-pixels-from-entire-screen/1480)

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**Author:** [@Grimtin10](https://discourse.processing.org/u/Grimtin10)\
**Replies:** 4\
**Last updated:** [July 4, 2018, 8:00am UTC](https://discourse.processing.org/t/how-to-get-section-of-pixels-from-entire-screen/1480 "2018-07-04T08:00:43Z")

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I’m going to write a simple bot for a game, and I need to get a section of pixels (or at least one pixel) from the game. How do I do this? -Grim

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## [PShape + 3D no es bueno](https://discourse.processing.org/t/pshape-3d-no-es-bueno/1422)

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**Author:** [@bbulkow](https://discourse.processing.org/u/bbulkow)\
**Replies:** 2\
**Last updated:** [July 3, 2018, 5:43pm UTC](https://discourse.processing.org/t/pshape-3d-no-es-bueno/1422 "2018-07-03T17:43:58Z")

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Hi! I’m trying to do the following: I have a file with a complex model in it, originally STEM format, which I’ve gotten into STL, and it still has a lot of polygons ( 40,000 I think ). While I can draw the object, frame…

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## [Based on what I want to do - should I learn Processing or P5.js?](https://discourse.processing.org/t/based-on-what-i-want-to-do-should-i-learn-processing-or-p5-js/1425)

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**Author:** [@MrsGolfShorts](https://discourse.processing.org/u/MrsGolfShorts)\
**Replies:** 12\
**Last updated:** [July 3, 2018, 2:38pm UTC](https://discourse.processing.org/t/based-on-what-i-want-to-do-should-i-learn-processing-or-p5-js/1425 "2018-07-03T14:38:27Z")

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I have a month off to dive full time into learning a visual framework and am unsure which direction to dedicate my time to. I am a musician and build generative and sonification systems. I have never touched any visual …

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## [Cut off digit from Integer](https://discourse.processing.org/t/cut-off-digit-from-integer/1446)

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**Author:** [@Daniel](https://discourse.processing.org/u/Daniel)\
**Replies:** 2\
**Last updated:** [July 2, 2018, 9:36pm UTC](https://discourse.processing.org/t/cut-off-digit-from-integer/1446 "2018-07-02T21:36:22Z")

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Hi, I have a list of postcodes and I wanna cut off the first digit of each code. If I have the postcodes “85463” for example, I want to cut off the “8” and write it into a variable. Is that possible? The substring() f…

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## [Problem with heading()](https://discourse.processing.org/t/problem-with-heading/1317)

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**Author:** [@simon](https://discourse.processing.org/u/simon)\
**Replies:** 3\
**Last updated:** [June 28, 2018, 12:44am UTC](https://discourse.processing.org/t/problem-with-heading/1317 "2018-06-28T00:44:32Z")

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Hi guys, I’m trying to write a code based on steering behaviors. And I’m having problems with a vehicle particle, when it starts to going close of the target it begins move strangely. I think something is wrong with the …

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## [How to run a processing sketch even when the canvas is minimized](https://discourse.processing.org/t/how-to-run-a-processing-sketch-even-when-the-canvas-is-minimized/1307)

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**Author:** [@prasad](https://discourse.processing.org/u/prasad)\
**Replies:** 1\
**Last updated:** [June 27, 2018, 1:11pm UTC](https://discourse.processing.org/t/how-to-run-a-processing-sketch-even-when-the-canvas-is-minimized/1307 "2018-06-27T13:11:33Z")

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First of all, Is running the sketch even after minimizing the canvas possible? I am going to use the exported .exe version of the sketch once completed. Problem I am facing is 2 part. I am trying to make an image capt…

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## [How to export a sketch as .exe](https://discourse.processing.org/t/how-to-export-a-sketch-as-exe/1233)

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**Author:** [@prasad](https://discourse.processing.org/u/prasad)\
**Replies:** 4\
**Last updated:** [June 25, 2018, 8:47am UTC](https://discourse.processing.org/t/how-to-export-a-sketch-as-exe/1233 "2018-06-25T08:47:49Z")

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i need to create a .exe of my project to run independently of processing environment. How do i do it.

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## [Camera: How top down view](https://discourse.processing.org/t/camera-how-top-down-view/1178)

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**Author:** [@Chrisir](https://discourse.processing.org/u/Chrisir)\
**Replies:** 5\
**Last updated:** [June 23, 2018, 5:54pm UTC](https://discourse.processing.org/t/camera-how-top-down-view/1178 "2018-06-23T17:54:17Z")

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Hello, it is well known that camera(width/2.0, height/2.0, (height/2.0) / tan(PI\*30.0 / 180.0), width/2.0, height/2.0, 0, 0, 1, 0); delivers the normal view. I am trying to implement a top down view: My best guess…

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## [Retaining transparency with png images](https://discourse.processing.org/t/retaining-transparency-with-png-images/1159)

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**Author:** [@tutantontut](https://discourse.processing.org/u/tutantontut)\
**Replies:** 11\
**Last updated:** [June 22, 2018, 9:03pm UTC](https://discourse.processing.org/t/retaining-transparency-with-png-images/1159 "2018-06-22T21:03:16Z")

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Hello everyone! I’ve been learning Processing for a while now, and have struck a brick wall: What I want to do; Load an image of a circular object (like an eye or a bubble etc.) and “retain it’s transparency”. I heard …

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## [Radians vs. degrees](https://discourse.processing.org/t/radians-vs-degrees/1103)

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**Author:** [@paulnaas](https://discourse.processing.org/u/paulnaas)\
**Replies:** 5\
**Last updated:** [June 21, 2018, 5:33pm UTC](https://discourse.processing.org/t/radians-vs-degrees/1103 "2018-06-21T17:33:02Z")

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Hi everyone. Brand new to Processing. I’m working my way through the Make: Getting Started with Processing book, and I was wondering about radians vs. degrees. Is there an advantage to using one over the other? Does one…

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## [A question on pixels and incrementing](https://discourse.processing.org/t/a-question-on-pixels-and-incrementing/888)

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**Author:** [@MilesWilliams](https://discourse.processing.org/u/MilesWilliams)\
**Replies:** 5\
**Last updated:** [June 20, 2018, 8:15pm UTC](https://discourse.processing.org/t/a-question-on-pixels-and-incrementing/888 "2018-06-20T20:15:48Z")

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Hello all, new to the world of Processing and have a quick question which I am hoping will have just as quick of an answer. So… Working with PVector objects, trying to get a understanding of motion within the Processin…

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