function draw_odometer_chart($WIDTH, $HEIGHT, $DATA, $CONFIG, $LEGEND, $FONT, $PALETTE = 'default') { $palettename = return_palette_name($PALETTE); require dirname(__FILE__) . '/lib/ezc/Graph/mahara/palettes/' . $palettename . '.php'; $graph = new ezcGraphOdometerChart(); $paletteclass = generate_palette_class_name($palettename); $graph->palette = new $paletteclass(); $graph->title = $CONFIG['title']; $graph->subtitle = 'Created: ' . $CONFIG['ctime'] . ', modified: ' . $CONFIG['mtime']; $graph->subtitle->position = ezcGraph::BOTTOM; $graph->legend = false; $graph->background->padding = 10; $graph->driver = new ezcGraphGdDriver(); $graph->driver->options->imageFormat = IMG_PNG; switch ($FONT['type']) { case 'serif': $fontname = 'lib/ezc/Graph/mahara/fonts/LiberationSerif-Regular.ttf'; break; case 'sans': $fontname = 'lib/ezc/Graph/mahara/fonts/LiberationSans-Regular.ttf'; break; } $graph->options->font = $fontname; // Set the maximum font size for all chart elements $graph->options->font->maxFontSize = $FONT['size']; // Set the font size for the title independently to 14 $graph->title->font->maxFontSize = $FONT['titlesize']; // Set colors for the background gradient //$graph->options->startColor = '#808080'; //$graph->options->endColor = '#C0C0C0'; /* $graph->options->startColor = '#2E3436'; $graph->options->endColor = '#EEEEEC'; */ // Set marker width $graph->options->markerWidth = 3; // Set axis span $graph->axis->min = 0; $graph->axis->max = 100; $graph->axis->label = $DATA['label']; /* $graph->yAxis->majorStep = 20; $graph->yAxis->minorStep = 10; if ($CONFIG['type'] == 'percent') { $graph->yAxis->formatString = '%d%%'; } */ if ($CONFIG['type'] == 'percent') { $EZCDATA = array($DATA['percent']); } else { $EZCDATA = array($DATA['value']); } $graph->data[$CONFIG['title']] = new ezcGraphArrayDataSet($EZCDATA); /* Build the PNG file and send it to the web browser */ $graph->renderToOutput($WIDTH, $HEIGHT); }
public function testRenderCompleteOdometerToOutput() { $filename = $this->tempDir . __FUNCTION__ . '.svg'; $chart = new ezcGraphOdometerChart(); $chart->data['data'] = new ezcGraphArrayDataSet(array(1, 7, 18)); ob_start(); // Suppress header already sent warning @$chart->renderToOutput(500, 200); file_put_contents($filename, ob_get_clean()); $this->compare($filename, $this->basePath . 'compare/' . __CLASS__ . '_' . __FUNCTION__ . '.svg'); }