/**
* Predisplay function
*
* @return void
*/
function prepare()
{
$s = new GSegment();
$s->setCoordinates(0, $this->_height, $this->_width, $this->_height);
$s->setColor($this->_grid_r_color, $this->_grid_g_color, $this->_grid_b_color);
$this->addElement($s);
$s = new GSegment();
$s->setCoordinates(0, $this->_height / 2, $this->_width, $this->_height / 2);
$s->setColor($this->_grid_r_color, $this->_grid_g_color, $this->_grid_b_color);
$this->addElement($s);
$s = new GSegment();
$s->setCoordinates(0, 0, $this->_width, 0);
$s->setColor($this->_grid_r_color, $this->_grid_g_color, $this->_grid_b_color);
$this->addElement($s);
$count = count($this->_legend);
$div = $this->_width / ($count - 1);
for ($i = 0; $i < $count - 1; $i = $i + (int) ($count / 5)) {
$s = new GSegment();
$s->setCoordinates($i * $div, 0, $i * $div, $this->_height);
$s->setColor($this->_grid_r_color, $this->_grid_g_color, $this->_grid_b_color);
$this->addElement($s);
$str = new GString($this->_legend[$i]);
$str->setCoordinates($i * $div, $this->_height);
$str->setXDistance(10);
$str->setYDistance(-5);
$this->addElement($str);
}
$s = new GSegment();
$s->setCoordinates(($count - 1) * $div, 0, ($count - 1) * $div, $this->_height);
$s->setColor($this->_grid_r_color, $this->_grid_g_color, $this->_grid_b_color);
$this->addElement($s);
$str = new GString($this->_legend[$count - 1]);
$str->setCoordinates(($count - 1) * $div, $this->_height);
$str->setXDistance(10);
$str->setYDistance(-5);
$this->addElement($str);
$str = new GString("" . $this->_max_value);
$str->setCoordinates(0, 0);
$str->setDistance(15);
$this->addElement($str);
}
/**
* Predisplay function
*
* @return void
*/
function prepare()
{
$values = $this->_values;
$count = count($values);
$max = max(max($values), 10);
$min = min($values);
$normalized = array();
for ($i = 0; $i < $count; $i++) {
if ($max == 0) {
$normalized[$i] = $this->_height;
} else {
$normalized[$i] = $this->_height - $values[$i] / $max * $this->_height;
}
}
$div = $this->_width / ($count - 1);
for ($i = 0; $i < $count - 1; $i++) {
$s = new GSegment();
$s->setCoordinates($i * $div, $normalized[$i], ($i + 1) * $div, $normalized[$i + 1]);
$s->setSize($this->getSize());
$s->setColor($this->_r_color, $this->_g_color, $this->_b_color);
$this->addElement($s);
if ($this->_show_background) {
$values = array($i * $div, $this->_height, $i * $div, $normalized[$i], ($i + 1) * $div, $normalized[$i + 1], ($i + 1) * $div, $this->_height);
$p = new GPolygon($values);
$p->setColor($this->_background_r_color, $this->_background_g_color, $this->_background_b_color);
$this->addElement($p);
}
if ($this->_show_values && $i % 3 == 0) {
$str = new GString("" . $this->_values[$i]);
$str->setCoordinates($i * $div, $normalized[$i], ($i + 1) * $div, $normalized[$i + 1]);
$str->setDistance(18);
$this->addElement($str);
}
}
$str = new GString("" . $this->_values[$count - 1]);
$str->setCoordinates(($count - 1) * $div, $normalized[$count - 1]);
$str->setDistance(18);
$this->addElement($str);
}
