# Processing

**URL:** https://discourse.processing.org/c/processing/6.md?no_subcategories=false&page=135

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

**Page:** 136

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## [About a project of processing .. I need a help](https://discourse.processing.org/t/about-a-project-of-processing-i-need-a-help/28865)

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**Author:** [@Tassadit](https://discourse.processing.org/u/Tassadit)\
**Replies:** 20\
**Last updated:** [April 24, 2021, 6:04pm UTC](https://discourse.processing.org/t/about-a-project-of-processing-i-need-a-help/28865 "2021-04-24T18:04:39Z")

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Please i need a help in my project . i hope that you help me to have the correct code. Nombres rationnels Sur le modèle des nombres complexes, on se propose de réaliser une classe qui représente les nombres rationnels. …

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## [Why am I Accessing Private Variables](https://discourse.processing.org/t/why-am-i-accessing-private-variables/29607)

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**Author:** [@emersonbastos](https://discourse.processing.org/u/emersonbastos)\
**Replies:** 1\
**Last updated:** [April 24, 2021, 5:58pm UTC](https://discourse.processing.org/t/why-am-i-accessing-private-variables/29607 "2021-04-24T17:58:21Z")

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Hi, I’m learning to program with Processing and a question came to me ! I created a class called Estrela (Star) and I created some private attributes in it, but I’m noticing that I can access these private variables fr…

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## [Parallel&horizontal lines using loops](https://discourse.processing.org/t/parallel-horizontal-lines-using-loops/29591)

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**Author:** [@lelapin](https://discourse.processing.org/u/lelapin)\
**Replies:** 3\
**Last updated:** [April 24, 2021, 5:07pm UTC](https://discourse.processing.org/t/parallel-horizontal-lines-using-loops/29591 "2021-04-24T17:07:01Z")

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Hello please i need help in my homework: Exercise: draw random parallel and horizontal lines using loops.The length of each line is a random number between 0 and 44. Thanks

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## [Problems with fractions](https://discourse.processing.org/t/problems-with-fractions/29605)

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**Author:** [@jensemand](https://discourse.processing.org/u/jensemand)\
**Replies:** 2\
**Last updated:** [April 24, 2021, 5:06pm UTC](https://discourse.processing.org/t/problems-with-fractions/29605 "2021-04-24T17:06:20Z")

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Hi, I am trying to make a program where i need to calculate a fraction (3-2)/2 or just 1/2 which is 0,5 ofcourse, however processing says it is 0. I don’t know if it’s a bug or what. I would just like to know how i can f…

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## [My program isn't doing what I want it to do (x and o game / Tic Tac Toe)](https://discourse.processing.org/t/my-program-isnt-doing-what-i-want-it-to-do-x-and-o-game-tic-tac-toe/25516)

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**Author:** [@DijaAngel](https://discourse.processing.org/u/DijaAngel)\
**Replies:** 68\
**Last updated:** [April 24, 2021, 3:19pm UTC](https://discourse.processing.org/t/my-program-isnt-doing-what-i-want-it-to-do-x-and-o-game-tic-tac-toe/25516 "2021-04-24T15:19:44Z")

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char player=‘X’; void setup(){ size(600,600); background(255); strokeWeight(6); noFill(); } void draw(){ stroke(0); line(200,100,200,500); line(400,100,400,500); } void mouseClicked(){ if(player==‘X’){ stro…

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## [Interactive shape masking with PGraphics](https://discourse.processing.org/t/interactive-shape-masking-with-pgraphics/29601)

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**Author:** [@PatJOAO](https://discourse.processing.org/u/PatJOAO)\
**Replies:** 1\
**Last updated:** [April 24, 2021, 12:32pm UTC](https://discourse.processing.org/t/interactive-shape-masking-with-pgraphics/29601 "2021-04-24T12:32:10Z")

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Hi there! Building up on a great post from the old forum: https://forum.processing.org/two/discussion/comment/77997/#Comment\_77997 shape. masking with PGraphics — was wondering if some one can give me a tip to how to a…

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## [How to force a path to write a file outside of the sketch directory?](https://discourse.processing.org/t/how-to-force-a-path-to-write-a-file-outside-of-the-sketch-directory/29579)

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**Author:** [@Liu.Exit](https://discourse.processing.org/u/Liu.Exit)\
**Replies:** 3\
**Last updated:** [April 24, 2021, 8:41am UTC](https://discourse.processing.org/t/how-to-force-a-path-to-write-a-file-outside-of-the-sketch-directory/29579 "2021-04-24T08:41:02Z")

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SelectFolder is not suitable for me because it opens a window … Thanks.

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## [Svg scale start again when svg size is too big](https://discourse.processing.org/t/svg-scale-start-again-when-svg-size-is-too-big/29580)

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**Author:** [@yves](https://discourse.processing.org/u/yves)\
**Replies:** 2\
**Last updated:** [April 24, 2021, 5:11am UTC](https://discourse.processing.org/t/svg-scale-start-again-when-svg-size-is-too-big/29580 "2021-04-24T05:11:18Z")

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Hi everyone, I’m new in processing dev, I have this code to scale a svg, I don’t know how to start again the scale when the svg go out the screen, like being at the original size and position . Thank’s Yves PShape bo…

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## [Finding nearest neighbor points](https://discourse.processing.org/t/finding-nearest-neighbor-points/29593)

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**Author:** [@Mort](https://discourse.processing.org/u/Mort)\
**Replies:** 1\
**Last updated:** [April 24, 2021, 3:36am UTC](https://discourse.processing.org/t/finding-nearest-neighbor-points/29593 "2021-04-24T03:36:36Z")

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Hi, I am having trouble with finding the nearest neighbor points. I am trying to create a web of lines connecting randomly generated points to each other. these lines are supposed to connect the nearest points to each ot…

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## [Removing current X values from a possible arrayList object spawn](https://discourse.processing.org/t/removing-current-x-values-from-a-possible-arraylist-object-spawn/29560)

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**Author:** [@spamelim](https://discourse.processing.org/u/spamelim)\
**Replies:** 3\
**Last updated:** [April 23, 2021, 9:52pm UTC](https://discourse.processing.org/t/removing-current-x-values-from-a-possible-arraylist-object-spawn/29560 "2021-04-23T21:52:47Z")

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Hello, I am working on a game where a ship avoids walls in 3D. I wanted to make sure the walls do not overlap in x values. Currently, they spawn in on a timed interval like so: if (walls.size() \<= max) { // max is a…

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## [Bezier & ellipse](https://discourse.processing.org/t/bezier-ellipse/29572)

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**Author:** [@kylu](https://discourse.processing.org/u/kylu)\
**Replies:** 3\
**Last updated:** [April 23, 2021, 8:37pm UTC](https://discourse.processing.org/t/bezier-ellipse/29572 "2021-04-23T20:37:41Z")

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Hey! i need some help, i’m working in a code, and i have a question, can i uso bezier in a ellipse? I need the shape of the ellipse to change as I go through it. Depending on the position of the mouse, the bezier posit…

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## [Why aren't my svg images rendering properly in processing?](https://discourse.processing.org/t/why-arent-my-svg-images-rendering-properly-in-processing/29548)

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**Author:** [@canslp](https://discourse.processing.org/u/canslp)\
**Replies:** 7\
**Last updated:** [April 23, 2021, 6:50pm UTC](https://discourse.processing.org/t/why-arent-my-svg-images-rendering-properly-in-processing/29548 "2021-04-23T18:50:11Z")

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i am using PShape to draw an svg image with shape(); but it’s not closing all the way. it basically looks like how the shape would look if i was doing beginShape() vertices and endShape() without using endShape(CLOSE); t…

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## [Bluetooth issue - com port busy when restarting a new program](https://discourse.processing.org/t/bluetooth-issue-com-port-busy-when-restarting-a-new-program/29297)

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**Author:** [@Neuro503](https://discourse.processing.org/u/Neuro503)\
**Replies:** 4\
**Last updated:** [April 23, 2021, 6:23pm UTC](https://discourse.processing.org/t/bluetooth-issue-com-port-busy-when-restarting-a-new-program/29297 "2021-04-23T18:23:14Z")

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Hi All, This is essentially a com port busy issue. I am unable to find a solution for this other than resetting the M5stickC. (Basically a ESP32) The M5stickC is programmed as a bluetooth device. It sends data out cons…

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## [Switching the location of two values in a IntList](https://discourse.processing.org/t/switching-the-location-of-two-values-in-a-intlist/29567)

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**Author:** [@jensemand](https://discourse.processing.org/u/jensemand)\
**Replies:** 2\
**Last updated:** [April 23, 2021, 5:12pm UTC](https://discourse.processing.org/t/switching-the-location-of-two-values-in-a-intlist/29567 "2021-04-23T17:12:04Z")

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As the title says, I was wondering if there’s a command for switching the location of two values in a IntList. I am trying to make a function so i can create a minheap and it just seems kind of boring to save the value i…

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## [Making a class move](https://discourse.processing.org/t/making-a-class-move/29571)

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**Author:** [@chatters22](https://discourse.processing.org/u/chatters22)\
**Replies:** 8\
**Last updated:** [April 23, 2021, 11:14am UTC](https://discourse.processing.org/t/making-a-class-move/29571 "2021-04-23T11:14:38Z")

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I’m quite new to Processing, earlier when I wasn’t working with classes I could easily make my objects move with simple code like xLoc = xLoc + 1. But now I’m working with classes, and I can’t get them to move for some r…

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## [Need help: problems with light and material of the 3d object](https://discourse.processing.org/t/need-help-problems-with-light-and-material-of-the-3d-object/29566)

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**Author:** [@sergio\_dm](https://discourse.processing.org/u/sergio_dm)\
**Replies:** 1\
**Last updated:** [April 23, 2021, 8:43am UTC](https://discourse.processing.org/t/need-help-problems-with-light-and-material-of-the-3d-object/29566 "2021-04-23T08:43:13Z")

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Hi everyone, for my university project I have implemented the marching cubes algorithm and everything seems to work, the only problem is that I can’t manage the lights and the surface material. Here is an example: T…

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## [Font Install Issues](https://discourse.processing.org/t/font-install-issues/29557)

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**Author:** [@YellowGTM](https://discourse.processing.org/u/YellowGTM)\
**Replies:** 5\
**Last updated:** [April 23, 2021, 12:00am UTC](https://discourse.processing.org/t/font-install-issues/29557 "2021-04-23T00:00:10Z")

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Good morning all. I see this topic has been posted before, and resolved to some extent. I’m trying to add a font called “Conthrax”, however the Processing IDE will not load it. The font works in other programs such a…

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## [Creating basically a slideshow but a bit different](https://discourse.processing.org/t/creating-basically-a-slideshow-but-a-bit-different/29522)

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**Author:** [@JoeyS](https://discourse.processing.org/u/JoeyS)\
**Replies:** 14\
**Last updated:** [April 22, 2021, 9:10pm UTC](https://discourse.processing.org/t/creating-basically-a-slideshow-but-a-bit-different/29522 "2021-04-22T21:10:05Z")

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Hi, In our course we are learning prototyping with Arduino Nano BLE 33 Sense. To our physical prototype we are creating a user interface to be run from a computer through Processing. The plan was to upload images we’ve …

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## [Processing to rhino/Grasshopper](https://discourse.processing.org/t/processing-to-rhino-grasshopper/29532)

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**Author:** [@Shruhman](https://discourse.processing.org/u/Shruhman)\
**Replies:** 5\
**Last updated:** [April 22, 2021, 6:31pm UTC](https://discourse.processing.org/t/processing-to-rhino-grasshopper/29532 "2021-04-22T18:31:14Z")

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Hi, I was wondering if there is any way to connect Processing and Rhino/grasshopper together. I am interested to write the code and generate geometries in processing and later transfer the geometries into Rhino/Grasshop…

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## [Computing a moving average](https://discourse.processing.org/t/computing-a-moving-average/28996)

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**Author:** [@bking](https://discourse.processing.org/u/bking)\
**Replies:** 18\
**Last updated:** [April 22, 2021, 6:21pm UTC](https://discourse.processing.org/t/computing-a-moving-average/28996 "2021-04-22T18:21:01Z")

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Hi there, I often and manually change the values of a data. In order to make the transitions less abrupt, I would like to have for a short time the average between the last value and the value just before. If I choose …

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## [The cursor is a horizontal line](https://discourse.processing.org/t/the-cursor-is-a-horizontal-line/29559)

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**Author:** [@Dialias](https://discourse.processing.org/u/Dialias)\
**Replies:** 1\
**Last updated:** [April 22, 2021, 2:57pm UTC](https://discourse.processing.org/t/the-cursor-is-a-horizontal-line/29559 "2021-04-22T14:57:36Z")

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Hey as you can see my Cursor isnt a normal Line, now its horizontal, this is only in Processing so i think its a cringe feature. How do i reset it?

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## [Processing crashes when trying to open a file](https://discourse.processing.org/t/processing-crashes-when-trying-to-open-a-file/16697)

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**Author:** [@Flo](https://discourse.processing.org/u/Flo)\
**Replies:** 1\
**Last updated:** [April 22, 2021, 6:23am UTC](https://discourse.processing.org/t/processing-crashes-when-trying-to-open-a-file/16697 "2021-04-22T06:23:52Z")

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Processing works fine in an empty sketch, but the moment I use ctrl-o or any other way to open a file, the gui doesn’t show any of the textfiles, and when you then press cancel processing crashes with the following messa…

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## [Move Vertex from SVG](https://discourse.processing.org/t/move-vertex-from-svg/29542)

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**Author:** [@p\_a](https://discourse.processing.org/u/p_a)\
**Replies:** 1\
**Last updated:** [April 21, 2021, 5:32pm UTC](https://discourse.processing.org/t/move-vertex-from-svg/29542 "2021-04-21T17:32:55Z")

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Hello! Currently I am working on moving backgrounds for music, don’t bother the sound analysis stuff, my only problem is that I want to move the Vertex points from one SVG Child to my created frequency bands. It works i…

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## [How do I find the rotateX,rotateY, and rotateZ values to make any vector vertical?](https://discourse.processing.org/t/how-do-i-find-the-rotatex-rotatey-and-rotatez-values-to-make-any-vector-vertical/29220)

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**Author:** [@neel](https://discourse.processing.org/u/neel)\
**Replies:** 4\
**Last updated:** [April 21, 2021, 5:04pm UTC](https://discourse.processing.org/t/how-do-i-find-the-rotatex-rotatey-and-rotatez-values-to-make-any-vector-vertical/29220 "2021-04-21T17:04:47Z")

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I’ve got two points in 3d space, and I want to draw a box between them that acts like a line. If I can translate to get to the first point, how would I find the rotation values that could make my box aligned so that one …

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## [Exception in Toxiclibs voronoi.addPoint() when image is large (5k x 5k or larger)](https://discourse.processing.org/t/exception-in-toxiclibs-voronoi-addpoint-when-image-is-large-5k-x-5k-or-larger/29541)

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**Author:** [@mocelet](https://discourse.processing.org/u/mocelet)\
**Replies:** 2\
**Last updated:** [April 21, 2021, 1:02pm UTC](https://discourse.processing.org/t/exception-in-toxiclibs-voronoi-addpoint-when-image-is-large-5k-x-5k-or-larger/29541 "2021-04-21T13:02:08Z")

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I am using the Toxiclibs voronoi mesh to generate a set of non-overlapping lines in a circle, and have based my sketch on the example code I found at https://forum.processing.org/one/topic/toxiclib-voronoi-example-sketch…

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## [Problems with creating soft body in processing](https://discourse.processing.org/t/problems-with-creating-soft-body-in-processing/29535)

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**Author:** [@Rafsing](https://discourse.processing.org/u/Rafsing)\
**Replies:** 1\
**Last updated:** [April 21, 2021, 10:09am UTC](https://discourse.processing.org/t/problems-with-creating-soft-body-in-processing/29535 "2021-04-21T10:09:05Z")

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I am having trouble forming a soft body where each side is a spring. When they are created, they do not merge into one object, but create as many springs as there are vertices in the figure. This code is responsible for …

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## [Presentation in processing? Is my idea doable?](https://discourse.processing.org/t/presentation-in-processing-is-my-idea-doable/28489)

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**Author:** [@Teljemo](https://discourse.processing.org/u/Teljemo)\
**Replies:** 10\
**Last updated:** [April 21, 2021, 9:47am UTC](https://discourse.processing.org/t/presentation-in-processing-is-my-idea-doable/28489 "2021-04-21T09:47:26Z")

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Hi, Me and a co-worker are about to make a presentation of a project that’s almost completed. Its a change in layout in production flow in a factory. Since we cant have a “grand opening” cause of the pandemic we are do…

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## [Question with duplication words](https://discourse.processing.org/t/question-with-duplication-words/29511)

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**Author:** [@Pokeyace](https://discourse.processing.org/u/Pokeyace)\
**Replies:** 6\
**Last updated:** [April 21, 2021, 4:48am UTC](https://discourse.processing.org/t/question-with-duplication-words/29511 "2021-04-21T04:48:34Z")

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String S; int L, i, j; String W\[\]; boolean build; void setup(){ // Initializations S = “We are the world We are the children”; L = S.length(); j = 0; W = new String\[100\]; W\[0\] = “”; // Main loop for(i = 0; i \<…

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## [Creating and deleting files](https://discourse.processing.org/t/creating-and-deleting-files/29466)

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**Author:** [@Th3cG](https://discourse.processing.org/u/Th3cG)\
**Replies:** 12\
**Last updated:** [April 20, 2021, 6:42pm UTC](https://discourse.processing.org/t/creating-and-deleting-files/29466 "2021-04-20T18:42:32Z")

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I’m trying to make a little app for personal use intended to get weather data from a website. To make this, I have to make some workaround to bypass a 403 error and I’m able to create three files (one for every day for w…

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## [Help with Scale and Mouse Coordinates Mismatch](https://discourse.processing.org/t/help-with-scale-and-mouse-coordinates-mismatch/29512)

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**Author:** [@Mattyjak](https://discourse.processing.org/u/Mattyjak)\
**Replies:** 3\
**Last updated:** [April 20, 2021, 6:02pm UTC](https://discourse.processing.org/t/help-with-scale-and-mouse-coordinates-mismatch/29512 "2021-04-20T18:02:41Z")

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Hello fellow programmers! I’ve been working on a small space game, and have run into an issue with the ‘solar system map’ system. I’m using translations and scale effects to give the illusion of a full, traversable map…

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