PHP Graph::add_edge Examples

Example #1

File: workflow_graph_img.php Project: nextgens/mantisbt

require_api('authentication_api.php');
require_api('compress_api.php');
require_api('config_api.php');
require_api('graphviz_api.php');
require_api('workflow_api.php');
auth_ensure_user_authenticated();
if (!config_get('relationship_graph_enable')) {
    access_denied();
}
compress_enable();
$t_status_arr = MantisEnum::getAssocArrayIndexedByValues(config_get('status_enum_string'));
$t_graph_fontname = config_get('relationship_graph_fontname');
$t_graph_fontsize = config_get('relationship_graph_fontsize');
$t_graph_fontpath = get_font_path();
$t_dot_tool = config_get('dot_tool');
$t_graph_attributes = array();
if (!empty($t_graph_fontpath)) {
    $t_graph_attributes['fontpath'] = $t_graph_fontpath;
}
$t_graph = new Graph('workflow', $t_graph_attributes, $t_dot_tool);
$t_graph->set_default_node_attr(array('fontname' => $t_graph_fontname, 'fontsize' => $t_graph_fontsize, 'shape' => 'record', 'style' => 'filled', 'height' => '0.2', 'width' => '0.4'));
$t_graph->set_default_edge_attr(array('style' => 'solid', 'color' => '#0000C0', 'dir' => 'forward'));
foreach ($t_status_arr as $t_from_status => $t_from_label) {
    $t_enum_status = MantisEnum::getAssocArrayIndexedByValues(config_get('status_enum_string'));
    foreach ($t_enum_status as $t_to_status_id => $t_to_status_label) {
        if (workflow_transition_edge_exists($t_from_status, $t_to_status_id)) {
            $t_graph->add_edge(string_no_break(MantisEnum::getLabel(lang_get('status_enum_string'), $t_from_status)), string_no_break(MantisEnum::getLabel(lang_get('status_enum_string'), $t_to_status_id)), array());
        }
    }
}
$t_graph->output('png', true);

Example #2

File: index.php Project: PatrickMurray/AutomataFiddle

function handle_render_request($request)
{
    $graph = new Graph();
    /* Assign the requested graph direction and export format */
    $graph->set_direction($request["direction"]);
    $graph->set_export_format($request["export"]);
    /* Add each node and set its shape */
    foreach ($request["nodes"] as $node) {
        $graph->add_node($node["name"]);
        $graph->set_node_shape($node["name"], $node["shape"]);
    }
    /* Add each edge */
    foreach ($request["edges"] as $edge) {
        $graph->add_edge($edge["origin"], $edge["destination"], $edge["label"]);
    }
    /* Export each graph and lookup it's mediatype */
    error_log($graph->compile());
    $binary = $graph->export();
    $mediatype = export_media_type($request);
    $encoding = base64_encode($binary);
    $response = array("mediatype" => $mediatype, "encoding" => $encoding);
    return $response;
}