function DrawGraph($file = "")
{
$this->graph_width = $this->graph_padding['left'] + count($this->data) * ($this->bar_width + $this->bar_padding * 2) + $this->graph_padding['right'];
$this->axis_deepness = $this->bar_height;
$this->im = imagecreatetruecolor($this->graph_width, $this->graph_height);
$this->axis_frontgridlines = 0;
$this->axis_xscalevisible = 0;
$this->axis_positions = array($this->axis_positions[0], 0, 0, 0);
CGraph::DrawGraph();
if ($this->axis_minY > 0) {
$this->axis_minY = 0;
}
if ($this->axis_maxY < 0) {
$this->axis_maxY = 0;
}
$this->__Draw_LeftBottom_Axis();
$p = 0;
foreach ($this->data as $name => $value) {
$p++;
$this->__DrawBarText($p, $name);
$this->__DrawBar($p, $value);
}
$this->__Draw_TopRight_Axis();
CGraph::DrawGraph2();
if (strlen($file)) {
$ret = imagepng($this->im, $file);
} else {
header("Content-Type: image/png");
// thanks to Marcin G. :)
imagepng($this->im);
$ret = true;
}
imagedestroy($this->im);
return $ret;
}
/**
* Graph::DrawGraph()
* Draw all the graph: bg, axis, bars, text.. and output it
* Optional file parameter turns output to file, and bool on success
**/
function DrawGraph($file = "")
{
$this->im = imagecreatetruecolor($this->graph_width, $this->graph_height);
CGraph::DrawGraph();
$this->__Draw_LeftBottom_Axis();
$arrki = array_keys($this->data);
if (is_array($this->data[$arrki[0]])) {
// more than 1 line
if (!is_array($this->line_color)) {
$this->line_color = array($this->line_color);
}
if (!is_array($this->line_bgcolor)) {
$this->line_bgcolor = array($this->line_bgcolor);
}
for ($i = 0; $i < count($arrki); $i++) {
$this->__AllocateColor("im_line_color", $this->line_color[$i], $this->graph_transparencylevel, $i);
if ($this->axis_deepness > 0) {
$this->__AllocateColor("im_line_bgcolor", $this->line_bgcolor[$i], $this->graph_transparencylevel, $i);
}
$arrkj = array_keys($this->data[$arrki[$i]]);
for ($j = 1; $j < count($arrkj); $j++) {
$this->__DrawLine(array($arrkj[$j - 1], $arrkj[$j], $this->data[$arrki[$i]][$arrkj[$j - 1]], $this->data[$arrki[$i]][$arrkj[$j]]), $this->im_line_color[$i], $this->im_line_bgcolor[$i]);
}
}
} else {
$this->__AllocateColor("im_line_color", $this->line_color, $this->graph_transparencylevel);
$this->__AllocateColor("im_line_bgcolor", $this->line_bgcolor, $this->graph_transparencylevel);
for ($i = 1; $i < count($arrki); $i++) {
$this->__DrawLine(array($arrki[$i - 1], $arrki[$i], $this->data[$arrki[$i - 1]], $this->data[$arrki[$i]]), $this->im_line_color, $this->im_line_bgcolor);
}
}
$this->__Draw_TopRight_Axis();
CGraph::DrawGraph2();
if (strlen($file)) {
$ret = imagepng($this->im, $file);
} else {
header("Content-Type: image/png");
// thanks to Marcin G. :)
imagepng($this->im);
$ret = true;
}
imagedestroy($this->im);
return $ret;
}
function DrawGraph($file = "")
{
$this->im = imagecreatetruecolor($this->graph_width, $this->graph_height);
$this->axis_positions = array(0, 0, 0, 0);
$this->axis_xscalevisible = 0;
$this->axis_yscalevisible = 0;
$this->axis_gridlines = 0;
CGraph::DrawGraph();
if ($this->pie_total == 0) {
foreach ($this->data as $name => $value) {
$this->pie_total += $value;
}
}
// deepness
for ($i = $this->pie_deepness; $i > 0; $i--) {
$offset = 0;
$p = 0;
foreach ($this->data as $n => $value) {
if (!$this->im_pie_deepnesscolor[$p]) {
$this->__AllocateColor("im_pie_deepnesscolor", $this->pie_deepnesscolor[$p], 0, $p);
}
$from = round($this->pie_startoffset - $offset * 360 / $this->pie_total);
$to = round($this->pie_startoffset - ($value + $offset) * 360 / $this->pie_total);
if ($from < 0) {
$from += 360;
}
if ($to < 0) {
$to += 360;
}
imagefilledarc($this->im, round($this->graph_width / 2), round($this->graph_height / 2) + $i, $this->graph_areawidth, $this->graph_areaheight, $to, $from, $this->im_pie_deepnesscolor[$p], IMG_ARC_PIE);
$offset += $value;
$p++;
}
}
$offset = 0;
$p = 0;
foreach ($this->data as $n => $value) {
$this->__AllocateColor("im_pie_color", $this->pie_color[$p], 0, $p);
$from = round($this->pie_startoffset - $offset * 360 / $this->pie_total);
$to = round($this->pie_startoffset - ($value + $offset) * 360 / $this->pie_total);
if ($from < 0) {
$from += 360;
}
if ($to < 0) {
$to += 360;
}
imagefilledarc($this->im, round($this->graph_width / 2), round($this->graph_height / 2), $this->graph_areawidth, $this->graph_areaheight, $to, $from, $this->im_pie_color[$p], IMG_ARC_PIE);
$offset += $value;
$p++;
}
CGraph::DrawGraph2();
if (strlen($file)) {
$ret = imagepng($this->im, $file);
} else {
header("Content-Type: image/png");
// thanks to Marcin G. :)
imagepng($this->im);
$ret = true;
}
imagedestroy($this->im);
return $ret;
}