'
.''
.'| '.tra( "Key" ).' | '
.''.tra( "Type" ).' | '
.''.tra( "Comments" ).' | '
.'
'
.''
.'| level | '
.''.tra( "numeric").'
'.tra( "(optional)" ).' | '
.''.tra( "The number of levels that will be followed from the starting page." ).' '.tra( "Default").': 0 | '
.'
'
.''
.'| title | '
.''.tra( "string").'
'.tra( "(optional)" ).' | '
.''.tra( "Title of the graph.").' '.tra( "Default ").': Wiki-Graph | '
.'
'
.''
.'| nodesep | '
.''.tra( "numeric").'
'.tra( "(optional)" ).' | '
.''.tra( "Distance between nodes in inches.").' '.tra( "Default").': 1.2 | '
.'
'
.''
.'| rankdir | '
.''.tra( "string").'
'.tra( "(optional)" ).' | '
.''.tra( "Direction of graph layout - can be Left to Right (LR), Right to Left (RL), Top to Bottom (TB), Bottom to Top (BT).").' '.tra( "Default").': TB | '
.'
'
.''
.'| bgcolor | '
.''.tra( "html colour").'
'.tra( "(optional)" ).' | '
.''.tra( "Background colour of the graph.").' '.tra( "Default").': transparent | '
.'
'
.'
'
.tra( "Example: " )."{wikigraph level=1}Welcome{/wikigraph}";
return $help;
}
function data_wikigraph( $pData, $pParams ) {
global $gContent, $gBitThemes;
$ret = " ";
// check to see if we have pear available.
if( $error = pear_check( "Image/GraphViz.php" )) {
return $error;
}
if( !empty( $gContent ) && is_object( $gContent )) {
$querystring = "";
$title = ( !empty( $pParams['title'] ) ? $pParams['title'] : 'Wiki-Graph' );
unset( $pParams['title'] );
foreach( $pParams as $param => $value ) {
$querystring .= "&{$param}={$value}";
}
if( empty( $pData ) ) {
$pData = (( is_object( $gContent ) || !empty( $gContent->mPageName )) ? $gContent->mPageName : NULL );
}
if( !empty( $pData ) ) {
$params = array(
'graph' => $gBitThemes->getGraphvizGraphAttributes( $pParams ),
'node' => $gBitThemes->getGraphvizNodeAttributes( $pParams ),
'edge' => $gBitThemes->getGraphvizEdgeAttributes( $pParams ),
);
$mapname = md5( microtime() );
$mapdata = $gContent->linkStructureMap( $pData, ( isset( $pParams['level'] ) ? $pParams['level'] : 0 ), $params );
$ret = "