processing / processing/processing4

Since v4.4.3 - XYscope has odd sizing bug and small examples alphabetical order issue

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bug
Dominant language
Java
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Forks
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Merged PRs (30d)
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Description

Most appropriate sub-area of Processing 4?

Core/Environment/Rendering

Processing version

4.4.3

Operating system

MacOS 13.6.5

Bug description

An issue was brought up on the XYscope repo about the size of shapes changing and going off screen.. did some version checking and discovered a bug was introduced in v4.4.3 of Processing. Prior to 4.4.2, my examples for 1_getting_started > calibration (or basic_drawing or clock) all worked fine, keeping the graphics within the 512x512 window. Since 4.4.3, the shapes seem to be 4x bigger... the sizing magnitude change is especially noticeable with the basic_drawing example where the mouseX/Y no longer match.. Odd that about half the sketches aren't affected.. so I'm guessing it's semi related to pushMatrix()/popMatrix() or translate()... really not sure.. Tried looking into the changelog, but perhaps someone working close on the project has an idea from the commit log what it might have been? The issue has lingered up until the latest 4.4.6 release.

v4.4.2, calibration example
Image

v4.4.3, calibration example (scale issue)
Image

On a small side note, another small issue that was introduced in 4.4.2, was the alphabetical order listing of the Contributed Libraries within the examples window. Previously XYscope was usually at the very bottom of this list, but now it looks like some other bits from the folder aren't being filtered? - aha, it's placing all lowercase libs at the bottom after any Titlecase ones...

v4.4.1, examples window
Image

v4.4.2, examples window (alphabetical issue)
Image

Steps to reproduce this
  1. Install XYscope library

  2. compare example calibration using v4.4.2 (or lower) and v4.4.3

snippet

/*
 calibration
 circle + square + lines to help center/adjust oscilloscpe display
 cc teddavis.org 2023
 */

import ddf.minim.*; // minim req to gen audio
import xyscope.*;   // import XYscope
XYscope xy;         // create XYscope instance

void setup() {
  size(512, 512);

  xy = new XYscope(this); // define XYscope instance
  //xy.getMixerInfo(); // lists all audio devices
}

void draw() {
  background(0);
  xy.clearWaves(); // clear waves similar to background

  pushMatrix();
  translate(width/2, height/2);
  pushMatrix();
  rotate(radians(180));
  xy.circle(0, 0, width);
  popMatrix();
  xy.rectMode(CENTER);
  xy.rect(0, 0, width);
  xy.line(-width/2, 0, width/2, 0);
  xy.line(0, height/2, 0, -height/2);
  popMatrix();

  xy.buildWaves(); // build audio from shapes
  xy.drawAll(); // draw all analytics
}
Additional context

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Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the XYscope calibration, basic_drawing, and clock examples on Processing 4.4.2 and 4.4.3, then inspect the Core/Environment/Rendering changes in the linked commit range. Check whether the sizing regression and the Contributed Libraries ordering regression have separate causes. Done means the examples retain their expected dimensions and the library list is alphabetized consistently.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
computer-graphics, desktop
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
32/100

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