clear.xml

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<root>
<name>clear()</name>

<category>Color</category>

<subcategory>Setting</subcategory>

<type></type>

<example>
<image></image>
<code><![CDATA[
PGraphics pg;

void setup() {
  size(200, 200);
  pg = createGraphics(100, 100);
}

void draw() {
  background(204);
  pg.beginDraw();
  pg.stroke(0, 102, 153);
  pg.line(0, 0, mouseX, mouseY);
  pg.endDraw();
  image(pg, 50, 50); 
}

// Click to clear the PGraphics object
void mousePressed() {
  pg.beginDraw(); 
  pg.clear();
  pg.endDraw();
}
]]></code>
</example>

<description><![CDATA[
Clears the pixels within a buffer. This function only works on PGraphics objects created with the <b>createGraphics()</b> function; it won't work with the main display window. Unlike the main graphics context (the display window), pixels in additional graphics areas created with <b>createGraphics()</b> can be entirely or partially transparent. This function clears everything to make all of the pixels 100% transparent. 
]]></description>

</root>