FrxSVGGraph.inc in Forena Reports 7.3

File

renderers/FrxSVGGraph.inc

<?php

/**
 * @file FrxSVGGraph
 * php SVG Graph generator
 *
 * @author davidmetzler
 *
 */
require_once 'FrxChart.inc';
class FrxSVGGraph extends FrxChart {
  private $graph;
  private $links;
  function __construct() {
    $directory = FrxReportGenerator::instance()
      ->configuration('library_path');
    $library = rtrim($directory, '/') . '/SVGGraph/SVGGraph.php';
    require_once $library;
  }
  static function graphTypes() {
    return array(
      'BarGraph' => array(
        'type' => 'Bar Graph',
        'style' => 'Simple',
        'series' => 1,
      ),
      'Bar3DGraph' => array(
        'type' => 'Bar Graph',
        'style' => '3D',
        'series' => 1,
      ),
      'StackedBarGraph' => array(
        'type' => 'Bar Graph',
        'style' => 'Stacked',
        'series' => 4,
      ),
      'GroupedBarGraph' => array(
        'type' => 'Bar Graph',
        'style' => 'Grouped',
        'series' => 4,
      ),
      'CylinderGraph' => array(
        'type' => 'Bar Graph',
        'style' => 'Cylinder',
        'series' => 1,
      ),
      'StackedCylinderGraph' => array(
        'type' => 'Bar Graph',
        'style' => 'Stacked Cylinder',
        'series' => 4,
      ),
      'GroupedCylinderGraph' => array(
        'type' => 'Bar Graph',
        'style' => 'Grouped Cylinder',
        'series' => 1,
      ),
      'PieGraph' => array(
        'type' => 'Pie Chart',
        'style' => 'Simple',
        'series' => 1,
      ),
      'Pie3DGraph' => array(
        'type' => 'Pie Chart',
        'style' => '3D',
        'series' => 1,
      ),
      'HorizontalBarGraph' => array(
        'type' => 'Bar Graph',
        'style' => 'Horizontal',
        'series' => 1,
      ),
      'LineGraph' => array(
        'type' => 'Line Graph',
        'style' => 'Simple',
        'series' => 1,
      ),
      'MultiLineGraph' => array(
        'type' => 'Line Graph',
        'style' => 'Multi',
        'series' => 4,
      ),
      'ScatterGraph' => array(
        'type' => 'Scatter Plot',
        'style' => 'Simple',
        'series' => 1,
        'xaxis' => TRUE,
      ),
      'MultiScatterGraph' => array(
        'type' => 'Scatter Plot',
        'style' => '3D',
        'series' => 4,
        'xaxis' => TRUE,
      ),
      'RadarGraph' => array(
        'type' => 'Radar Graph',
        'style' => 'Simple',
        'series' => 1,
      ),
      'MultiRadarGraph' => array(
        'type' => 'Radar Graph',
        'style' => 'Multi',
        'series' => 4,
      ),
    );
  }
  static function graphOptions() {
    $data = FrxSVGGraph::graphTypes();
    foreach ($data as $key => $value) {
      $type[$value['type']] = $value['type'];
      $style[$value['type']][$key] = $value['style'];
    }
    return array(
      'types' => $type,
      'styles' => $style,
    );
  }
  function renderChart($type, $data, $options, $links) {
    $options['width'] = @$options['width'] ? $options['width'] : 600;
    $options['height'] = @$options['height'] ? $options['height'] : 400;
    $this->links = $links;
    $type = strtolower($type);

    // Legacy sustitions for backcward compatibility.
    if ($type == 'piechart') {
      $type = 'piegraph';
    }
    if ($type == 'scatterplot') {
      $type = 'scattergraph';
    }
    if ($type == 'multiscatterplot') {
      $type = 'multiscattergraph';
    }

    // Newly defined types
    $graph_types = FrxSVGGraph::graphTypes();

    // Build map for array types.
    $lower_graphs_types = array_change_key_case($graph_types);
    $graph_classes = array_combine(array_keys($lower_graphs_types), array_keys($graph_types));
    if ($data && isset($graph_classes[$type])) {
      $class = $graph_classes[$type];
      if (@$graph_types[$class]['series'] == 1) {
        $output = $this
          ->renderGraph($class, $options, $data[0]);
      }
      else {
        $output = $this
          ->renderGraph($class, $options, $data);
      }
    }
    return $output;
  }
  function renderGraph($type, $options, $data) {
    static $jsinc = FALSE;
    if (!isset($options['scatter_2d']) && ($type == 'ScatterGraph' || $type == 'MultiScatterGraph') && $this->xy_data && !isset($options['scatter_2d'])) {
      $options['scatter_2d'] = TRUE;
    }
    else {
      $options['scatter_2d'] = (bool) @$options['scatter_2d'];
    }
    $links = $this->links;
    $width = @$options['width'] ? @$options['width'] : 600;
    $height = @$options['height'] ? @$options['height'] : 400;
    $graph = new SVGGraph($width, $height, $options);
    $this->graph = $graph;
    $graph
      ->Values($data);
    if (is_array(@$options['colors'])) {
      $graph->colours = $options['colors'];
    }
    if ($links) {
      $graph
        ->Links($links);
    }
    $output = $graph
      ->Fetch($type, FALSE);

    // Add a viewbox to be compatible with Prince PDF generation.
    $output = str_replace('<svg width', "<svg viewBox='0 0 {$width} {$height}' width", $output);
    $javascript = '/<script[^>]*?>.*?<\\/script>/si';
    $noscript = '';
    if (!$jsinc && $this->format == 'web') {
      $output .= $graph
        ->FetchJavascript();
    }
    else {
      $output = preg_replace($javascript, $noscript, $output);
    }
    return $output;
  }

}

Classes

Name	Description
FrxSVGGraph