Stroke is shaking when rotates

Most appropriate sub-area of Processing 4?

Other (specify if possible)

Processing version

4.5.2

Operating system

windows

Bug description

Stroke is shaking when rotates. Only stroke does that, not the filled shape itself.

void draw(){
noFill();
stroke(0, 150, 255); // Blue color
strokeWeight(4);
rotate(radians(angle));
arc(0, 0, 150, 150, 0, PI + HALF_PI);
}

Steps to reproduce this

1. set frameRate to 60

2. run code:

void draw(){
noFill();
stroke(0, 150, 255); // Blue color
strokeWeight(4);
rotate(radians(angle));
arc(x, y, 150, 150, 0, PI + HALF_PI);
}

OR

void draw(){
noFill();
stroke(0, 150, 255); // Blue color
strokeWeight(4);
//rotate(radians(angle));
arc(x, y, 150, 150, radians(angle), PI + HALF_PI + radians(angle));
}

3. observe shaking of the rotating arc

snippet

float angle = 0;

void setup() {
  size(400, 200);
  frameRate(60);
}

void draw() {
  background(30); 
  
  pushMatrix();
  translate(width/2, height/2); 
  
  noFill();
  stroke(0, 150, 255); 
  strokeWeight(4);
  rotate(radians(angle));
  arc(0, 0, 150, 150, 0, PI + HALF_PI);
  
  popMatrix();
  
  angle += 5;
}

Additional context

No response

Would you like to work on the issue?

No, I’m just reporting the issue

首先，在 Windows 上的 Processing 4.5.2 中以 frameRate 60 运行提供的 setup() 和 draw() 代码片段，然后比较使用和不使用 rotate() 时的旋转弧线。复现描边抖动而填充图形保持稳定的情况。在所提供的示例中，旋转弧线渲染时不再出现可见的描边抖动，即表示完成。