# Latest

**URL:** https://discourse.processing.org/latest.md?no_subcategories=false&page=603

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

**Page:** 604

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## [Getrow() - unwanted rounding](https://discourse.processing.org/t/getrow-unwanted-rounding/1926)

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**Author:** [@Groot](https://discourse.processing.org/u/Groot)\
**Replies:** 3\
**Last updated:** [July 22, 2018, 8:26pm UTC](https://discourse.processing.org/t/getrow-unwanted-rounding/1926 "2018-07-22T20:26:38Z")

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hi all, ultra new to processing, apologies in advance if this has been asked/is basic. im trying to read data out of a table that i have imported from a csv file. i load the table, select a specific row i am intereste…

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## [Help With My New Game](https://discourse.processing.org/t/help-with-my-new-game/1910)

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**Author:** [@Tat-Tay](https://discourse.processing.org/u/Tat-Tay)\
**Replies:** 3\
**Last updated:** [July 22, 2018, 8:26pm UTC](https://discourse.processing.org/t/help-with-my-new-game/1910 "2018-07-22T20:26:35Z")

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Hello. I’m am extremely new to coding in general. I do not know anything about libraries and functions or any of that vocabulary of coding because I started about one month ago and I taught myself to code using Youtube v…

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## [Why does createCanvas runs twice](https://discourse.processing.org/t/why-does-createcanvas-runs-twice/1982)

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**Author:** [@Kris](https://discourse.processing.org/u/Kris)\
**Replies:** 3\
**Last updated:** [July 22, 2018, 6:04pm UTC](https://discourse.processing.org/t/why-does-createcanvas-runs-twice/1982 "2018-07-22T18:04:27Z")

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Extending the p5 class, I noticed that the createCanvas method runs twice. It runs without calling it. Is this a normal behavior, and if so why ? ORR…, did I something wrong :slight\_smile:

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## [Flappy birds notepad++ javascript](https://discourse.processing.org/t/flappy-birds-notepad-javascript/1975)

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**Author:** [@ctrembla](https://discourse.processing.org/u/ctrembla)\
**Replies:** 2\
**Last updated:** [July 22, 2018, 3:53pm UTC](https://discourse.processing.org/t/flappy-birds-notepad-javascript/1975 "2018-07-22T15:53:11Z")

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OK, i’m making flappy birds using notepad ++ javascript. I was following along with this tutorial after adding the files from his neural network videos and when he tested his program mine didn’t work. I che…

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## [Trouble with python mode](https://discourse.processing.org/t/trouble-with-python-mode/1673)

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**Author:** [@kylehughesm](https://discourse.processing.org/u/kylehughesm)\
**Replies:** 6\
**Last updated:** [July 22, 2018, 11:43am UTC](https://discourse.processing.org/t/trouble-with-python-mode/1673 "2018-07-22T11:43:20Z")

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I installed python mode but when I click on python in the dropdown, an error window appears Title: Python mode Error Meassage: Cannot start python sketch runner. I’m fairly new to programming and processing, I’ve do…

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## [Using the canvas as the parent of an element makes it disappear](https://discourse.processing.org/t/using-the-canvas-as-the-parent-of-an-element-makes-it-disappear/1937)

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**Author:** [@Albizia](https://discourse.processing.org/u/Albizia)\
**Replies:** 11\
**Last updated:** [July 22, 2018, 9:02am UTC](https://discourse.processing.org/t/using-the-canvas-as-the-parent-of-an-element-makes-it-disappear/1937 "2018-07-22T09:02:10Z")

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Hello, Why does a button disappear if I set canvas as his parent ? canvas = createCanvas(800, 600); button = createButton("huhu"); button.parent(canvas);

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## [Flappy Bird game](https://discourse.processing.org/t/flappy-bird-game/1955)

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**Author:** [@justdredre](https://discourse.processing.org/u/justdredre)\
**Replies:** 4\
**Last updated:** [July 22, 2018, 7:16am UTC](https://discourse.processing.org/t/flappy-bird-game/1955 "2018-07-22T07:16:52Z")

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New to java scrip and need some help please :slight\_smile: Can someone tell me why my obstacles arent showing up when i live preview? I have used the console log to see if its registering the obstacles every 2 seconds (…

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## [Help With Health System in p5.js Game](https://discourse.processing.org/t/help-with-health-system-in-p5-js-game/1974)

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**Author:** [@Doodle\_Noodle](https://discourse.processing.org/u/Doodle_Noodle)\
**Replies:** 1\
**Last updated:** [July 22, 2018, 6:30am UTC](https://discourse.processing.org/t/help-with-health-system-in-p5-js-game/1974 "2018-07-22T06:30:57Z")

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Alright, so I’ve been slowly making my own little game using p5.js, and I’ve hit a bit of a snag. I have quite a bit set up, including boundaries for the two players, key inputs, and the ability to fire “bullets” at each…

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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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## [Emulator selection](https://discourse.processing.org/t/emulator-selection/1938)

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**Author:** [@kfrajer](https://discourse.processing.org/u/kfrajer)\
**Replies:** 1\
**Last updated:** [July 21, 2018, 8:51pm UTC](https://discourse.processing.org/t/emulator-selection/1938 "2018-07-21T20:51:41Z")

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@codeanticode Hi Andres, Is it possible to select an emulator in the PDE instead of the default one or this can only be done in AS? I also notice that the emulator never shows up under the device listing in the PDE men…

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## [How to Convert File Doc to pdf](https://discourse.processing.org/t/how-to-convert-file-doc-to-pdf/1961)

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**Author:** [@ofconvert](https://discourse.processing.org/u/ofconvert)\
**Replies:** 1\
**Last updated:** [July 21, 2018, 8:05pm UTC](https://discourse.processing.org/t/how-to-convert-file-doc-to-pdf/1961 "2018-07-21T20:05:49Z")

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Hello everyone My name is john and i am trying to convert doc to pdf, so how to convert File

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## [Rendering audio visual applications](https://discourse.processing.org/t/rendering-audio-visual-applications/1956)

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**Author:** [@Kimri](https://discourse.processing.org/u/Kimri)\
**Replies:** 2\
**Last updated:** [July 21, 2018, 8:55am UTC](https://discourse.processing.org/t/rendering-audio-visual-applications/1956 "2018-07-21T08:55:53Z")

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The question is: how do you render Processing applications which are real time audio reactive, i.e. where the the video reacts to parameters extracted from audio? For instance, this was done via screen capture, and cl…

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## [Scaling to be the same size on every phone](https://discourse.processing.org/t/scaling-to-be-the-same-size-on-every-phone/1945)

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**Author:** [@CrispyCabot](https://discourse.processing.org/u/CrispyCabot)\
**Replies:** 1\
**Last updated:** [July 21, 2018, 10:15am UTC](https://discourse.processing.org/t/scaling-to-be-the-same-size-on-every-phone/1945 "2018-07-21T10:15:16Z")

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Ok I’m just struggling to do this. So I know it will involve displayDensity but I either don’t understand how this is documented or I’m doing something wrong. So I created my app on a 441 dpi screen-displayDensity value …

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## [APK signing advice](https://discourse.processing.org/t/apk-signing-advice/1935)

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**Author:** [@shedMusic](https://discourse.processing.org/u/shedMusic)\
**Replies:** 2\
**Last updated:** [July 21, 2018, 10:07am UTC](https://discourse.processing.org/t/apk-signing-advice/1935 "2018-07-21T10:07:44Z")

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Just trying to figure out options for apk signing. Should I have different keys for different apps? The way this seems to be set up is to ask to create a keystore the first time round and then after that to just enter t…

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## [blendMode problems](https://discourse.processing.org/t/blendmode-problems/1116)

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**Author:** [@renderga](https://discourse.processing.org/u/renderga)\
**Replies:** 4\
**Last updated:** [July 21, 2018, 9:49am UTC](https://discourse.processing.org/t/blendmode-problems/1116 "2018-07-21T09:49:02Z")

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Hi! First post here! My name is Azur and I’m a P5js beginner, love the library and the Kadenze course! I write this post because I’m having a problem with the blendMode function, hope somebody can help me. Here’s an sc…

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## [Implements an interface of a library](https://discourse.processing.org/t/implements-an-interface-of-a-library/1928)

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**Author:** [@vjjv](https://discourse.processing.org/u/vjjv)\
**Replies:** 9\
**Last updated:** [July 21, 2018, 4:06am UTC](https://discourse.processing.org/t/implements-an-interface-of-a-library/1928 "2018-07-21T04:06:07Z")

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hello. im trying to create a path tube with shape3D library, but i have a problem to implements a I\_PathGen interface… is the first time that i “implements” a interface and i dont know how exactly make it works. import…

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## [Questions about Processing codes and copyright.](https://discourse.processing.org/t/questions-about-processing-codes-and-copyright/1867)

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**Author:** [@Adrion](https://discourse.processing.org/u/Adrion)\
**Replies:** 7\
**Last updated:** [July 21, 2018, 2:43am UTC](https://discourse.processing.org/t/questions-about-processing-codes-and-copyright/1867 "2018-07-21T02:43:22Z")

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My name is Adrion T. Kelley and I am an Art & Tech major at the University of Oregon. I am interested in making an online Processing tutorial through Udemy.com and charging for the tutorials but I am unsure about the …

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## [Reading the keys on the keyboard](https://discourse.processing.org/t/reading-the-keys-on-the-keyboard/1944)

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**Author:** [@pcripe](https://discourse.processing.org/u/pcripe)\
**Replies:** 2\
**Last updated:** [July 20, 2018, 11:37pm UTC](https://discourse.processing.org/t/reading-the-keys-on-the-keyboard/1944 "2018-07-20T23:37:21Z")

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I have been brushing up o Processing after buying a Microsoft Surface Book 2. When I get to trying to draw letters on the keyboard, it seems the key code is not passed into the program. Anyone have a similar problem? …

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## [Hemesh change parameters](https://discourse.processing.org/t/hemesh-change-parameters/1863)

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**Author:** [@vjjv](https://discourse.processing.org/u/vjjv)\
**Replies:** 6\
**Last updated:** [July 20, 2018, 5:38pm UTC](https://discourse.processing.org/t/hemesh-change-parameters/1863 "2018-07-20T17:38:11Z")

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hello! im using the hemesh library to construct 3D meshes, but ive a problem when i want to change the values of a constructor.. how can i change them? here in the example, i want to change the radius according mouseX po…

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## [Predefined variables affecting execution](https://discourse.processing.org/t/predefined-variables-affecting-execution/1930)

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**Author:** [@giulio](https://discourse.processing.org/u/giulio)\
**Replies:** 3\
**Last updated:** [July 20, 2018, 5:07pm UTC](https://discourse.processing.org/t/predefined-variables-affecting-execution/1930 "2018-07-20T17:07:17Z")

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I was modifying and cleaning my code. Suddenly the draw() loop stopped to be repeated (it only executed the first time, up to the last line, as I saw by inserting some println calls). After looking at the code, I saw th…

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## [How do I make an app in a video?(message box)](https://discourse.processing.org/t/how-do-i-make-an-app-in-a-video-message-box/1934)

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**Author:** [@GWAK](https://discourse.processing.org/u/GWAK)\
**Replies:** 1\
**Last updated:** [July 20, 2018, 4:28pm UTC](https://discourse.processing.org/t/how-do-i-make-an-app-in-a-video-message-box/1934 "2018-07-20T16:28:16Z")

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ummary: When a shock is detected, Arduino transmits data to the smartphone via Bluetooth communication. At this time, the following message box appears on the background screen. How do I make the message …

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## [Looking for feedback on a new CS ed tool](https://discourse.processing.org/t/looking-for-feedback-on-a-new-cs-ed-tool/1834)

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**Author:** [@estherhersh](https://discourse.processing.org/u/estherhersh)\
**Replies:** 2\
**Last updated:** [July 20, 2018, 3:23pm UTC](https://discourse.processing.org/t/looking-for-feedback-on-a-new-cs-ed-tool/1834 "2018-07-20T15:23:07Z")

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Hi everyone! I’m working with a few alums from NYU’s ITP on an instructional tool and lesson sharing platform for CS education. It’s called Peblio and you can find the demo here(it works best in Chrome). We’re looking f…

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## [How to use textWidth on a text generated with Geomerative library?](https://discourse.processing.org/t/how-to-use-textwidth-on-a-text-generated-with-geomerative-library/1636)

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**Author:** [@lolonulu](https://discourse.processing.org/u/lolonulu)\
**Replies:** 6\
**Last updated:** [July 20, 2018, 9:33am UTC](https://discourse.processing.org/t/how-to-use-textwidth-on-a-text-generated-with-geomerative-library/1636 "2018-07-20T09:33:23Z")

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Hello everybody, I am looking for a solution to get the width of each of my sentences written with the Geomerative library, is someone know how to proceed?! Thanks a lot in advance for your help! Best, L

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## [Color Grading using LUT and PShader](https://discourse.processing.org/t/color-grading-using-lut-and-pshader/1929)

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**Author:** [@alexr4](https://discourse.processing.org/u/alexr4)\
**Replies:** 0\
**Last updated:** [July 20, 2018, 8:11am UTC](https://discourse.processing.org/t/color-grading-using-lut-and-pshader/1929 "2018-07-20T08:11:27Z")

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Hi everyone, I am trying to implement a color grading shader using LUT as described here by Matt DesLauriers et here by Lev Zelensky but I get a strange result when I apply the shader with a standard lut : On the lef…

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## [I need two songs to sound after the other](https://discourse.processing.org/t/i-need-two-songs-to-sound-after-the-other/1274)

<div class="topic-metadata">

**Author:** [@ruski15](https://discourse.processing.org/u/ruski15)\
**Replies:** 10\
**Last updated:** [July 20, 2018, 6:12am UTC](https://discourse.processing.org/t/i-need-two-songs-to-sound-after-the-other/1274 "2018-07-20T06:12:23Z")

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Hi community, I would like my code to play a sound, stop for 5 secs and play another sound. There will be 7 sounds that have to combine randomly with each other (that makes 42 combinations). Following the p5.js exampl…

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## [ Phantom Video Frame in Sketch](https://discourse.processing.org/t/phantom-video-frame-in-sketch/635)

<div class="topic-metadata">

**Author:** [@lukemcconnell](https://discourse.processing.org/u/lukemcconnell)\
**Replies:** 9\
**Last updated:** [July 20, 2018, 6:01am UTC](https://discourse.processing.org/t/phantom-video-frame-in-sketch/635 "2018-07-20T06:01:36Z")

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I am new to Processing so I’ve hit a wall. I’ve developed a simple sketch for an interactive work which triggers videos on keypress d,f,g. When a key is pressed the video should start from the beginning and play. If no o…

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## [Syntax and Hints for Processing](https://discourse.processing.org/t/syntax-and-hints-for-processing/1904)

<div class="topic-metadata">

**Author:** [@abubakar](https://discourse.processing.org/u/abubakar)\
**Replies:** 2\
**Last updated:** [July 20, 2018, 1:13am UTC](https://discourse.processing.org/t/syntax-and-hints-for-processing/1904 "2018-07-20T01:13:25Z")

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I am new to Processing3, I am facing issues in finding the syntax of different commands in processing. e.g contour. Can someone guide me how i can simply check if my contours are convex. precisely how to use cv.isConto…

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## [Notifications on windows](https://discourse.processing.org/t/notifications-on-windows/1918)

<div class="topic-metadata">

**Author:** [@AidanLand](https://discourse.processing.org/u/AidanLand)\
**Replies:** 1\
**Last updated:** [July 20, 2018, 1:11am UTC](https://discourse.processing.org/t/notifications-on-windows/1918 "2018-07-20T01:11:10Z")

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I’m writing an alarm clock program, and right now You have to be looking at the program to see the alarm. I would like to be able to make my program to display a notification when the alarm goes off, like the built in a…

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## [createVector returning undefined](https://discourse.processing.org/t/createvector-returning-undefined/1922)

<div class="topic-metadata">

**Author:** [@Liam\_McLeod44](https://discourse.processing.org/u/Liam_McLeod44)\
**Replies:** 6\
**Last updated:** [July 20, 2018, 12:55am UTC](https://discourse.processing.org/t/createvector-returning-undefined/1922 "2018-07-20T00:55:09Z")

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Hi, I was recently going through one of Daniel Shiffman’s old smart rockets tutorial. My code is very similar to his only with updated syntax. I ran into an error early on which was Uncaught TypeError: Cannot read proper…

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## [Using an external java class](https://discourse.processing.org/t/using-an-external-java-class/1895)

<div class="topic-metadata">

**Author:** [@colinh](https://discourse.processing.org/u/colinh)\
**Replies:** 5\
**Last updated:** [July 19, 2018, 9:19pm UTC](https://discourse.processing.org/t/using-an-external-java-class/1895 "2018-07-19T21:19:51Z")

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I’ve written a java class (which interfaces to a C library via JNI) and which I’d like to use in a sketch. //\*\*\*\* bezier/BezFit.java package bezier; public class BezFit { static { System.loadLibrary("bezier"); } …

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