$this->render_dots();
$this->render_point_labels();
}
break;
case "pie":
$this->render_pie();
break;
default:
$this->create_error_graphic("unknown graph type: " . $this->options["type"]);
break;
}
if ($this->options["debug"]) {
$this->log("would have output png now.");
} else {
imagepng($this->img);
}
imagedestroy($this->img);
}
}
$scriptname = basename($_SERVER["PHP_SELF"]);
switch ($scriptname) {
case "eqn_multigraph.php":
// called to render inline
$foo = new Eqn_multigraph();
$foo->parseurl();
$foo->render();
if ($foo->options["debug"]) {
$foo->dump_errors();
}
break;
}
for ($i = -5; $i < 10; $i++) {
$s45[$i] = $i;
}
// 60 degree line
for ($i = -5; $i < 10; $i++) {
$s60[$i] = 2 * $i;
}
$g->add_series($s45, "Y = X");
$g->add_series($s60, "Y = 2X");
print("<a href=\"".$g->createurl()."&debug=1\"><img src=\""
.$g->createurl()."\" title=\"click to see debug output\"></a><br>");
}
$eqn = "y = x^2;";
$g = new Eqn_multigraph(array(
"title" => "testing equation graph",
"width" => $gwidth,
"height" => $gheight,
"type" => "line",
"square" => 1,
"x_start" => -5,
"x_end" => 5,
"eqn" => "y = x^2",
));
print("<a href=\"".$g->createurl()."&debug=1\"><img src=\""
.$g->createurl()."\" title=\"click to see debug output\"></a><br>");
?>
</body>
</html>