# Processing **URL:** https://discourse.processing.org/c/processing/6.md?no_subcategories=false&page=18 [Latest](https://discourse.processing.org/latest.md) · [Categories](https://discourse.processing.org/categories.md) · [Tags](https://discourse.processing.org/tags.md) **Page:** 19 --- ## [Opening numbered images](https://discourse.processing.org/t/opening-numbered-images/44791)

**Author:** [@fra](https://discourse.processing.org/u/fra)\ **Replies:** 4\ **Last updated:** [July 21, 2024, 4:36pm UTC](https://discourse.processing.org/t/opening-numbered-images/44791 "2024-07-21T16:36:32Z")

Hi, in a folder I saved three .png files: “1.png”, “2.png”, “3.png” In the Processing code I use a constant: int A = 3; Now: I would like open an “A.png” image , with A set by the variable above. So, for example: i… --- ## [.dxf export to smaller file size\_Where is superCAD?](https://discourse.processing.org/t/dxf-export-to-smaller-file-size-where-is-supercad/44790)

**Author:** [@Mindbogged](https://discourse.processing.org/u/Mindbogged)\ **Replies:** 0\ **Last updated:** [July 21, 2024, 8:29am UTC](https://discourse.processing.org/t/dxf-export-to-smaller-file-size-where-is-supercad/44790 "2024-07-21T08:29:54Z")

Hi everyone. I am extremely novice in coding but mange my way somehow. I am trying to reduce the file size of my dxf since files are too large to open in the CAD software I am using. I managed to open files in Freecad,… --- ## [Receiving numbers from Pure Data via OSC](https://discourse.processing.org/t/receiving-numbers-from-pure-data-via-osc/44786)

**Author:** [@fra](https://discourse.processing.org/u/fra)\ **Replies:** 6\ **Last updated:** [July 20, 2024, 5:55pm UTC](https://discourse.processing.org/t/receiving-numbers-from-pure-data-via-osc/44786 "2024-07-20T17:55:15Z")

Hi, I built a patch in Pure Data to send numbers via OSC: and I verified that the numbers were received (in the Pure Data console, not in Processing), and they are received correctly. Now, what is the way to receive… --- ## [Run code from terminal \[Linux\]](https://discourse.processing.org/t/run-code-from-terminal-linux/44774)

**Author:** [@fra](https://discourse.processing.org/u/fra)\ **Replies:** 6\ **Last updated:** [July 19, 2024, 1:04am UTC](https://discourse.processing.org/t/run-code-from-terminal-linux/44774 "2024-07-19T01:04:47Z")

Hi, is it possible to run code directly in the terminal? Something like this: :~$ processing\> size(400, 400); rect(120, 80, 50, 50); I read in a previous post that I need to install “processing-java”, but I can’t fin… --- ## [Increase dot size (point())](https://discourse.processing.org/t/increase-dot-size-point/44771)

**Author:** [@fra](https://discourse.processing.org/u/fra)\ **Replies:** 3\ **Last updated:** [July 18, 2024, 5:27pm UTC](https://discourse.processing.org/t/increase-dot-size-point/44771 "2024-07-18T17:27:58Z")

Hi, with this code I draw some points: size(400, 400); noSmooth(); point(120, 80); point(340, 80); point(340, 300); point(120, 300); So they are drawn with the size of one pixel. Is there a way to increase the dot si… --- ## [Change Icon in GWindow in G4P?](https://discourse.processing.org/t/change-icon-in-gwindow-in-g4p/44780)

**Author:** [@Thundercat](https://discourse.processing.org/u/Thundercat)\ **Replies:** 6\ **Last updated:** [July 18, 2024, 5:02pm UTC](https://discourse.processing.org/t/change-icon-in-gwindow-in-g4p/44780 "2024-07-18T17:02:46Z")

Hi Peter, Was wondering if there’s a way to swap out the GWindow icon on the upper left corner of new GWindows? Spent a couple hours researching and experimenting before posting here. I found one old post where you gav… --- ## [G4P Close Window Vs Hide Window](https://discourse.processing.org/t/g4p-close-window-vs-hide-window/44761)

**Author:** [@Thundercat](https://discourse.processing.org/u/Thundercat)\ **Replies:** 9\ **Last updated:** [July 15, 2024, 2:47pm UTC](https://discourse.processing.org/t/g4p-close-window-vs-hide-window/44761 "2024-07-15T14:47:05Z")

Hi Peter, This was discussed in another thread, but I felt it needed its own dedicated thread. I want to be able to handle when a user clicks the “x” button to close a GWindow, and also be able to “hide” it using a butt… --- ## [Processing library template using Gradle](https://discourse.processing.org/t/processing-library-template-using-gradle/44739)

**Author:** [@enkatsu](https://discourse.processing.org/u/enkatsu)\ **Replies:** 9\ **Last updated:** [July 14, 2024, 8:36pm UTC](https://discourse.processing.org/t/processing-library-template-using-gradle/44739 "2024-07-14T20:36:11Z")

Hi! I have been developing a Processing libraries using Gradle for a while now. You can develop this way using your favorite editor such as Eclipse, IntelliJ IDEA, VSCode, etc. I have created a template repository that y… --- ## [Project approach (height map from image)](https://discourse.processing.org/t/project-approach-height-map-from-image/44281)

**Author:** [@Qprocessing](https://discourse.processing.org/u/Qprocessing)\ **Replies:** 7\ **Last updated:** [July 13, 2024, 2:17pm UTC](https://discourse.processing.org/t/project-approach-height-map-from-image/44281 "2024-07-13T14:17:26Z")

Hello I’m figuring out a project to make a topography of a mountain. I have an example image as a goal. I did a test with still image (final goals is video) The result is not really anything near what I want … --- ## [G4P One More Small Refinement for Droplists](https://discourse.processing.org/t/g4p-one-more-small-refinement-for-droplists/44762)

**Author:** [@Thundercat](https://discourse.processing.org/u/Thundercat)\ **Replies:** 5\ **Last updated:** [July 14, 2024, 9:55am UTC](https://discourse.processing.org/t/g4p-one-more-small-refinement-for-droplists/44762 "2024-07-14T09:55:37Z")

Hi Peter, don’t kill me, but there is one more little thing that would be amazing to add to the droplists at some point - the ability to click into the scrollbar track to move a screenful at a time, or click and hold to … --- ## [Shaders: Drawing layers on top of each other](https://discourse.processing.org/t/shaders-drawing-layers-on-top-of-each-other/44724)

**Author:** [@hoend008](https://discourse.processing.org/u/hoend008)\ **Replies:** 14\ **Last updated:** [July 14, 2024, 5:58am UTC](https://discourse.processing.org/t/shaders-drawing-layers-on-top-of-each-other/44724 "2024-07-14T05:58:36Z")

Hey all, I want to draw moving shapes on top of an image (a world map), for example ellipses representing airplanes moving over the map to their destination. I am also practicing using a shader to improve performance, b… --- ## [Rotate Camera Image only, blend with Image from Animation](https://discourse.processing.org/t/rotate-camera-image-only-blend-with-image-from-animation/44747)

**Author:** [@qualidat](https://discourse.processing.org/u/qualidat)\ **Replies:** 3\ **Last updated:** [July 11, 2024, 3:37pm UTC](https://discourse.processing.org/t/rotate-camera-image-only-blend-with-image-from-animation/44747 "2024-07-11T15:37:34Z")

Rotating an image is not normally a complicated matter. However, I have a somewhat complicated problem: I get an image from a live camera I read an image from an animation I mix the images with blend and then show them… --- ## [How to draw a perfect flower](https://discourse.processing.org/t/how-to-draw-a-perfect-flower/44734)

**Author:** [@Ruka](https://discourse.processing.org/u/Ruka)\ **Replies:** 8\ **Last updated:** [July 10, 2024, 3:56am UTC](https://discourse.processing.org/t/how-to-draw-a-perfect-flower/44734 "2024-07-10T03:56:11Z")

I tried to draw a zinnia, but the first petal is always at the bottom and cannot form a perfect loop with the last petal. How can I modify the code? float r=400; float kuan=200; float chang=400; void setup() { fullSc… --- ## [Merging tiles into paths](https://discourse.processing.org/t/merging-tiles-into-paths/44670)

**Author:** [@eightohnine](https://discourse.processing.org/u/eightohnine)\ **Replies:** 21\ **Last updated:** [July 10, 2024, 5:17pm UTC](https://discourse.processing.org/t/merging-tiles-into-paths/44670 "2024-07-10T17:17:06Z")

Hi all, I’d like to pick your brains for a sketch I’m tackling. I’m building off of this: It’s a basic tile placement generator that for this example uses two tile types – straight and 90° curve – to fill the canvas … --- ## [G4P java Concurrent Modification Exception Error when exit() called](https://discourse.processing.org/t/g4p-java-concurrent-modification-exception-error-when-exit-called/44532)

**Author:** [@Thundercat](https://discourse.processing.org/u/Thundercat)\ **Replies:** 27\ **Last updated:** [July 10, 2024, 5:14pm UTC](https://discourse.processing.org/t/g4p-java-concurrent-modification-exception-error-when-exit-called/44532 "2024-07-10T17:14:43Z")

Hi all, Just getting a strange java.util.ConcurrentModificationException message when using multiple windows in G4P. It all seems to work fine until I try to use an “Exit” button (calling exit()), and then I get the fo… --- ## [3D modeling from the front camera](https://discourse.processing.org/t/3d-modeling-from-the-front-camera/44641)

**Author:** [@mimi](https://discourse.processing.org/u/mimi)\ **Replies:** 15\ **Last updated:** [July 10, 2024, 10:10am UTC](https://discourse.processing.org/t/3d-modeling-from-the-front-camera/44641 "2024-07-10T10:10:40Z")

Hello everyone, I will need to see help I am starting on processing. I have already started the code I would like to have but I can’t get a correct result, I attach an image of the result I would like. I would like to… --- ## [White flash on fullscreen](https://discourse.processing.org/t/white-flash-on-fullscreen/44654)

**Author:** [@larry](https://discourse.processing.org/u/larry)\ **Replies:** 5\ **Last updated:** [July 10, 2024, 4:30am UTC](https://discourse.processing.org/t/white-flash-on-fullscreen/44654 "2024-07-10T04:30:03Z")

Hello Does anyone know if it is possible to remove the white screen that appears for the first at the start of fullscreen apps ? I am using processing in a live show and would like to launch the app during the show with… --- ## [Hitting up against variable scope issue with OSC messages](https://discourse.processing.org/t/hitting-up-against-variable-scope-issue-with-osc-messages/44736)

**Author:** [@dom](https://discourse.processing.org/u/dom)\ **Replies:** 2\ **Last updated:** [July 9, 2024, 10:57am UTC](https://discourse.processing.org/t/hitting-up-against-variable-scope-issue-with-osc-messages/44736 "2024-07-09T10:57:50Z")

Hello all, I’m having a problem passing OSC into processing. Everything is working in the code below except for the fact that the ellipse does not find the variable pan. I even know why this is: variable scope. However,… --- ## [Image to Audio, Spectrogram Player](https://discourse.processing.org/t/image-to-audio-spectrogram-player/44731)

**Author:** [@karmakarma](https://discourse.processing.org/u/karmakarma)\ **Replies:** 0\ **Last updated:** [July 8, 2024, 11:18am UTC](https://discourse.processing.org/t/image-to-audio-spectrogram-player/44731 "2024-07-08T11:18:00Z")

dear all, i’m aiming at doing a Processing version of this: Image to Audio, Spectrogram Player basically what I want is to encode an image generated in Processing in an audio file, and make Processing itself play this … --- ## [How to find the coordinates of a bitmap shape](https://discourse.processing.org/t/how-to-find-the-coordinates-of-a-bitmap-shape/44699)

**Author:** [@paulstgeorge](https://discourse.processing.org/u/paulstgeorge)\ **Replies:** 13\ **Last updated:** [July 7, 2024, 7:08am UTC](https://discourse.processing.org/t/how-to-find-the-coordinates-of-a-bitmap-shape/44699 "2024-07-07T07:08:11Z")

I have a sketch that divides a rectangle into three cells (picture 1). Everything is working as it should, but now I want to know the xy coordinates of the start and end of each border/edge. To show what I mean, I have m… --- ## [Sketch canvas does not change](https://discourse.processing.org/t/sketch-canvas-does-not-change/44675)

**Author:** [@Crinqe](https://discourse.processing.org/u/Crinqe)\ **Replies:** 1\ **Last updated:** [July 7, 2024, 1:08am UTC](https://discourse.processing.org/t/sketch-canvas-does-not-change/44675 "2024-07-07T01:08:24Z")

My sketch runs fine, but when I try to change the canvas size, it does not change. I tried to change the ratio of the sketch ex: 100, 200; 1000, 800; but the sketch only pops up with a canvas size of I would say about 10… --- ## [Can't render OpenGL mesh and P3D components at the same time](https://discourse.processing.org/t/cant-render-opengl-mesh-and-p3d-components-at-the-same-time/44624)

**Author:** [@Java.SourceForger](https://discourse.processing.org/u/Java.SourceForger)\ **Replies:** 1\ **Last updated:** [July 7, 2024, 12:54am UTC](https://discourse.processing.org/t/cant-render-opengl-mesh-and-p3d-components-at-the-same-time/44624 "2024-07-07T00:54:01Z")

I don’t know why I can’t use JOML meshes and P3D components at the same time. I followed the opengl tutorial for processing ( Advanced OpenGL · processing/processing Wiki · GitHub) And I was able to successfully render… --- ## [G4P Droplist scroll bar](https://discourse.processing.org/t/g4p-droplist-scroll-bar/44503)

**Author:** [@Thundercat](https://discourse.processing.org/u/Thundercat)\ **Replies:** 13\ **Last updated:** [July 5, 2024, 5:00pm UTC](https://discourse.processing.org/t/g4p-droplist-scroll-bar/44503 "2024-07-05T17:00:55Z")

Hi Peter, simple question - if I’m using the mousewheel event to change the droplist items, I notice the vertical scrollbar stays put. The scrollbar only moves if I click the down or up arrows. Also, I cannot drag the s… --- ## [G4P Tooltip underneath other controls](https://discourse.processing.org/t/g4p-tooltip-underneath-other-controls/44662)

What a great library! Just a small issue, for some reason if controls are near each other, the tooltips go under other controls. See pic: Is there any way to fix this, or just move the controls? It makes it harder … --- ## [Getting a PShape from an emoji...?](https://discourse.processing.org/t/getting-a-pshape-from-an-emoji/44479)

**Author:** [@villares](https://discourse.processing.org/u/villares)\ **Replies:** 20\ **Last updated:** [July 5, 2024, 5:44am UTC](https://discourse.processing.org/t/getting-a-pshape-from-an-emoji/44479 "2024-07-05T05:44:19Z")

Processing has this PFont method, “undocumented” (not in the main public reference), called .getShape(), that will give you a PShape of a glyph from a font object: PFont docs But there is a catch… it will only take a… --- ## [Data type: very high integer](https://discourse.processing.org/t/data-type-very-high-integer/44680)

**Author:** [@Chrisir](https://discourse.processing.org/u/Chrisir)\ **Replies:** 7\ **Last updated:** [July 3, 2024, 3:08pm UTC](https://discourse.processing.org/t/data-type-very-high-integer/44680 "2024-07-03T15:08:15Z")

simple question: we just try to calculate the length of a lightyear. using int a = 300000 \* // m/s — error ---- km/s 60\*60 \* // to km/h 24 \* // day 365; // year But rounding error occurs Unclear why (I unders… --- ## [Conditions to make a circle grow and shrink](https://discourse.processing.org/t/conditions-to-make-a-circle-grow-and-shrink/43698)

**Author:** [@Karrajo](https://discourse.processing.org/u/Karrajo)\ **Replies:** 5\ **Last updated:** [July 3, 2024, 1:45pm UTC](https://discourse.processing.org/t/conditions-to-make-a-circle-grow-and-shrink/43698 "2024-07-03T13:45:32Z")

Hello, Sorry because I know this is a very simple question but I’m stuck on this and I need help. I’m trying to create the conditions to grow a circle up to a certain point, and when it reaches that point, make it smal… --- ## [Detecting sun & moon / OpenCV & other libraries for object detection](https://discourse.processing.org/t/detecting-sun-moon-opencv-other-libraries-for-object-detection/44685)

**Author:** [@karmakarma](https://discourse.processing.org/u/karmakarma)\ **Replies:** 0\ **Last updated:** [July 2, 2024, 7:38pm UTC](https://discourse.processing.org/t/detecting-sun-moon-opencv-other-libraries-for-object-detection/44685 "2024-07-02T19:38:18Z")

hej all, i’ve been struggling with finding a feasible solution to do the object detection of images of the sun and the moon (so, roughly, two circular bright spots). my first trial was installing python and trying my lu… --- ## [Keyboard not being read](https://discourse.processing.org/t/keyboard-not-being-read/35014)

**Author:** [@JoseMY](https://discourse.processing.org/u/JoseMY)\ **Replies:** 10\ **Last updated:** [July 2, 2024, 6:36pm UTC](https://discourse.processing.org/t/keyboard-not-being-read/35014 "2024-07-02T18:36:03Z")

Hi again. I’m having issues with keyboard not being read. At first, I though my issues were Draw() not looping (or not ending before next loop), but it seems Draw() is running at good fps rate. My project has a complic… --- ## [How do i set screen size](https://discourse.processing.org/t/how-do-i-set-screen-size/44683)

**Author:** [@theapplesguy2](https://discourse.processing.org/u/theapplesguy2)\ **Replies:** 2\ **Last updated:** [July 2, 2024, 2:37pm UTC](https://discourse.processing.org/t/how-do-i-set-screen-size/44683 "2024-07-02T14:37:18Z")

how do i set the screne size of my rendered thing (imagine a square on a 500x500 screen, but theres no set size so the screen gets as small as you can) [Previous page](https://discourse.processing.org/c/processing/6.md?no_subcategories=false&page=17) [Next page](https://discourse.processing.org/c/processing/6.md?no_subcategories=false&page=19)