processing4/processing/bugs.txt

...............................................................

*** SMOOTHING STRANGE ON SOME EDGES

....


// here is the same issue, more concise. 
// one quad is fine, the other has one jagged edge:

size(200, 200);
noStroke();
 
fill(102);
// bottom line is not smooth
quad(0, 0, 100, -20, 120, 100, 0, 120);
 
fill(0);
// quad draws fine
quad(105, 10, 120, 60, 120, 150, 80, 200);


...............................................................

*** EDGES DON'T HIT ONE ANOTHER CORRECTLY

....

// smoothing changes the way sphere is rendered:

size(200, 200);
lights();
noStroke();
//noSmooth();
translate(100, height/2, -50);
sphere(100);

.....

i'm not sure how to classify, but look at 'typography00'. i think is the
same issue as when drawing the cubes above. tangent polygons have
lines between them.

....


// edges in cube rendering have gap when smooth is on:

void setup()
{
  size(200, 200);
  lights();
  noStroke();
}
 
float angle;
void loop()
{
  angle+=0.01;
  translate(100, 100, 0);
  rotateX(HALF_PI/2);
  rotateY(angle);
  box(80);
}


....


ellipses are no longer begin stroked:

size(200, 200);
stroke(255);
fill(0);
ellipse(50, 50, 100, 100);
rect(60, 60, 80, 80);


....


// smoothing around ellipse is inconsistent. 
// in this example, a foreign circulating line is introduced

void setup()
{
  size(200, 200);
  background(102, 0, 0);
}
 
float a;
 
void loop()
{
  a += 0.01;
  translate(100, 100);
  rotate(a);
  ellipse(-50, -50, 100, 200);
  //ellipse(-50, -50, 100, 100);
}


/ / / / / / / / / / / /


also that pesky pmouseX, pmouseY seems to be behaving oddly again.
it's skipping beats. try this:

void setup() {
  size(200, 200);
  noBackground();
  refresh();
}

void loop() {
  stroke(255);
  if(mousePressed && pmouseX != 0 && pmouseY != 0) {
    line(mouseX, mouseY, pmouseX, pmouseY);
  }
}

// the kludge with pmouseX != 0 etc. has to do with their default to 0.
// would it be possible to automatically have P5 set the pmouseX and
// pmouseY to mouseX and mouseY on the first frame?
// comment that line out to see what i'm talking about


....................................................

Gizmo[][] life = new Gizmo[30][30];

void setup()
{
  size(300, 300);
  background(255, 255, 255); 
  stroke(0, 0, 0);
      
  for (int a = 0; a < 30; a++)
    for (int b = 0; b < 30; b++)
    {
      life[a][b] = new Gizmo(a, b);
      life[a][b].init();
    }     
}

void loop()
{
  if (mouseX >= 0 && mouseX <= 300 && mouseY >= 0 && mouseY <= 300)
  {
    int ex = (mouseX - (mouseX % 10)) / 10;
    int why = (mouseY - (mouseY % 10)) / 10;
  }
  else
  {
    ex = 0; 
    why = 0;  
  }

  if (life[ex][why].alive == false && mousePressed)
    life[ex][why].make();
  else if (life[ex][why].alive == true && mousePressed)
    life[ex][why].kill();

  drawbg();
}

void drawbg()
{
  for (int why = 0; why < 30; why++)
    for (int ex = 0; ex < 30; ex++)
    {
      if (life[ex][why].alive == true)
      {
        fill(150, 20, 20);
        rect(ex * 10, why * 10, 10, 10);
      }
      else
      {
        fill(0, 0, 0);
        rect(ex * 10, why * 10, 10, 10);
      }
}
        
      

class Gizmo
{
  int x;
  int y;
  boolean alive;
  Point[] neighbours = new Point[8]; 
  
  Gizmo (int ex, int why)
  {
    x = ex;
    y = why;
  }
  
  void init();
  {
    for (int i = 0; i < 8; i++)
      neighbours[i] = new Point(0,0);
  }
  
  void make()
  {
    alive == true;
  }
  
  void kill()
  {
    alive == false;
  } 
}

class Point
{
  int x;
  int y;
  
  Point (int ex, int why)
  {
    x = ex;
    y = why;
  }
  
  void set(int ex, int why)
  {
    x = ex;
    y = why;
  }
}