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-<?php
- /*
- pSpring - class to draw spring graphs
-
- Version : 2.1.2
- Made by : Jean-Damien POGOLOTTI
- Last Update : 03/08/11
-
- This file can be distributed under the license you can find at :
-
- http://www.pchart.net/license
-
- You can find the whole class documentation on the pChart web site.
- */
-
- define("NODE_TYPE_FREE" , 690001);
- define("NODE_TYPE_CENTRAL" , 690002);
-
- define("NODE_SHAPE_CIRCLE" , 690011);
- define("NODE_SHAPE_TRIANGLE" , 690012);
- define("NODE_SHAPE_SQUARE" , 690013);
-
- define("ALGORITHM_RANDOM" , 690021);
- define("ALGORITHM_WEIGHTED" , 690022);
- define("ALGORITHM_CIRCULAR" , 690023);
- define("ALGORITHM_CENTRAL" , 690024);
-
- define("LABEL_CLASSIC" , 690031);
- define("LABEL_LIGHT" , 690032);
-
- /* pSpring class definition */
- class pSpring
- {
- var $History;
- var $pChartObject;
- var $Data;
- var $Links;
- var $X1;
- var $Y1;
- var $X2;
- var $Y2;
- var $AutoComputeFreeZone;
- var $Labels;
-
- /* Class creator */
- function pSpring()
- {
- /* Initialise data arrays */
- $this->Data = "";
- $this->Links = "";
-
- /* Set nodes defaults */
- $this->Default["R"] = 255;
- $this->Default["G"] = 255;
- $this->Default["B"] = 255;
- $this->Default["Alpha"] = 100;
- $this->Default["BorderR"] = 0;
- $this->Default["BorderG"] = 0;
- $this->Default["BorderB"] = 0;
- $this->Default["BorderAlpha"] = 100;
- $this->Default["Surrounding"] = NULL;
- $this->Default["BackgroundR"] = 255;
- $this->Default["BackgroundG"] = 255;
- $this->Default["BackgroundB"] = 255;
- $this->Default["BackgroundAlpha"] = 0;
- $this->Default["Force"] = 1;
- $this->Default["NodeType"] = NODE_TYPE_FREE;
- $this->Default["Size"] = 5;
- $this->Default["Shape"] = NODE_SHAPE_CIRCLE;
- $this->Default["FreeZone"] = 40;
- $this->Default["LinkR"] = 0;
- $this->Default["LinkG"] = 0;
- $this->Default["LinkB"] = 0;
- $this->Default["LinkAlpha"] = 0;
-
- $this->Labels["Type"] = LABEL_CLASSIC;
- $this->Labels["R"] = 0;
- $this->Labels["G"] = 0;
- $this->Labels["B"] = 0;
- $this->Labels["Alpha"] = 100;
-
- $this->AutoComputeFreeZone = FALSE;
- }
-
- /* Set default links options */
- function setLinkDefaults($Settings="")
- {
- if ( isset($Settings["R"]) ) { $this->Default["LinkR"] = $Settings["R"]; }
- if ( isset($Settings["G"]) ) { $this->Default["LinkG"] = $Settings["G"]; }
- if ( isset($Settings["B"]) ) { $this->Default["LinkB"] = $Settings["B"]; }
- if ( isset($Settings["Alpha"]) ) { $this->Default["LinkAlpha"] = $Settings["Alpha"]; }
- }
-
- /* Set default links options */
- function setLabelsSettings($Settings="")
- {
- if ( isset($Settings["Type"]) ) { $this->Labels["Type"] = $Settings["Type"]; }
- if ( isset($Settings["R"]) ) { $this->Labels["R"] = $Settings["R"]; }
- if ( isset($Settings["G"]) ) { $this->Labels["G"] = $Settings["G"]; }
- if ( isset($Settings["B"]) ) { $this->Labels["B"] = $Settings["B"]; }
- if ( isset($Settings["Alpha"]) ) { $this->Labels["Alpha"] = $Settings["Alpha"]; }
- }
-
- /* Auto compute the FreeZone size based on the number of connections */
- function autoFreeZone()
- {
- /* Check connections reciprocity */
- foreach($this->Data as $Key => $Settings)
- {
- if ( isset($Settings["Connections"]) )
- { $this->Data[$Key]["FreeZone"] = count($Settings["Connections"])*10 + 20; }
- else
- { $this->Data[$Key]["FreeZone"] = 20; }
- }
-
- }
-
- /* Set link properties */
- function linkProperties($FromNode,$ToNode,$Settings)
- {
- if ( !isset($this->Data[$FromNode]) ) { return(0); }
- if ( !isset($this->Data[$ToNode]) ) { return(0); }
-
- $R = isset($Settings["R"]) ? $Settings["R"] : 0;
- $G = isset($Settings["G"]) ? $Settings["G"] : 0;
- $B = isset($Settings["B"]) ? $Settings["B"] : 0;
- $Alpha = isset($Settings["Alpha"]) ? $Settings["Alpha"] : 100;
- $Name = isset($Settings["Name"]) ? $Settings["Name"] : NULL;
- $Ticks = isset($Settings["Ticks"]) ? $Settings["Ticks"] : NULL;
-
- $this->Links[$FromNode][$ToNode]["R"] = $R; $this->Links[$ToNode][$FromNode]["R"] = $R;
- $this->Links[$FromNode][$ToNode]["G"] = $G; $this->Links[$ToNode][$FromNode]["G"] = $G;
- $this->Links[$FromNode][$ToNode]["B"] = $B; $this->Links[$ToNode][$FromNode]["B"] = $B;
- $this->Links[$FromNode][$ToNode]["Alpha"] = $Alpha; $this->Links[$ToNode][$FromNode]["Alpha"] = $Alpha;
- $this->Links[$FromNode][$ToNode]["Name"] = $Name; $this->Links[$ToNode][$FromNode]["Name"] = $Name;
- $this->Links[$FromNode][$ToNode]["Ticks"] = $Ticks; $this->Links[$ToNode][$FromNode]["Ticks"] = $Ticks;
- }
-
- function setNodeDefaults($Settings="")
- {
- if ( isset($Settings["R"]) ) { $this->Default["R"] = $Settings["R"]; }
- if ( isset($Settings["G"]) ) { $this->Default["G"] = $Settings["G"]; }
- if ( isset($Settings["B"]) ) { $this->Default["B"] = $Settings["B"]; }
- if ( isset($Settings["Alpha"]) ) { $this->Default["Alpha"] = $Settings["Alpha"]; }
- if ( isset($Settings["BorderR"]) ) { $this->Default["BorderR"] = $Settings["BorderR"]; }
- if ( isset($Settings["BorderG"]) ) { $this->Default["BorderG"] = $Settings["BorderG"]; }
- if ( isset($Settings["BorderB"]) ) { $this->Default["BorderB"] = $Settings["BorderB"]; }
- if ( isset($Settings["BorderAlpha"]) ) { $this->Default["BorderAlpha"] = $Settings["BorderAlpha"]; }
- if ( isset($Settings["Surrounding"]) ) { $this->Default["Surrounding"] = $Settings["Surrounding"]; }
- if ( isset($Settings["BackgroundR"]) ) { $this->Default["BackgroundR"] = $Settings["BackgroundR"]; }
- if ( isset($Settings["BackgroundG"]) ) { $this->Default["BackgroundG"] = $Settings["BackgroundG"]; }
- if ( isset($Settings["BackgroundB"]) ) { $this->Default["BackgroundB"] = $Settings["BackgroundB"]; }
- if ( isset($Settings["BackgroundAlpha"]) ) { $this->Default["BackgroundAlpha"] = $Settings["BackgroundAlpha"]; }
- if ( isset($Settings["NodeType"]) ) { $this->Default["NodeType"] = $Settings["NodeType"]; }
- if ( isset($Settings["Size"]) ) { $this->Default["Size"] = $Settings["Size"]; }
- if ( isset($Settings["Shape"]) ) { $this->Default["Shape"] = $Settings["Shape"]; }
- if ( isset($Settings["FreeZone"]) ) { $this->Default["FreeZone"] = $Settings["FreeZone"]; }
- }
-
- /* Add a node */
- function addNode($NodeID,$Settings="")
- {
- /* if the node already exists, ignore */
- if (isset($this->Data[$NodeID])) { return(0); }
-
- $Name = isset($Settings["Name"]) ? $Settings["Name"] : "Node ".$NodeID;
- $Connections = isset($Settings["Connections"]) ? $Settings["Connections"] : NULL;
-
- $R = isset($Settings["R"]) ? $Settings["R"] : $this->Default["R"];
- $G = isset($Settings["G"]) ? $Settings["G"] : $this->Default["G"];
- $B = isset($Settings["B"]) ? $Settings["B"] : $this->Default["B"];
- $Alpha = isset($Settings["Alpha"]) ? $Settings["Alpha"] : $this->Default["Alpha"];
- $BorderR = isset($Settings["BorderR"]) ? $Settings["BorderR"] : $this->Default["BorderR"];
- $BorderG = isset($Settings["BorderG"]) ? $Settings["BorderG"] : $this->Default["BorderG"];
- $BorderB = isset($Settings["BorderB"]) ? $Settings["BorderB"] : $this->Default["BorderB"];
- $BorderAlpha = isset($Settings["BorderAlpha"]) ? $Settings["BorderAlpha"] : $this->Default["BorderAlpha"];
- $Surrounding = isset($Settings["Surrounding"]) ? $Settings["Surrounding"] : $this->Default["Surrounding"];
- $BackgroundR = isset($Settings["BackgroundR"]) ? $Settings["BackgroundR"] : $this->Default["BackgroundR"];
- $BackgroundG = isset($Settings["BackgroundG"]) ? $Settings["BackgroundG"] : $this->Default["BackgroundG"];
- $BackgroundB = isset($Settings["BackgroundB"]) ? $Settings["BackgroundB"] : $this->Default["BackgroundB"];
- $BackgroundAlpha = isset($Settings["BackgroundAlpha"]) ? $Settings["BackgroundAlpha"] : $this->Default["BackgroundAlpha"];
- $Force = isset($Settings["Force"]) ? $Settings["Force"] : $this->Default["Force"];
- $NodeType = isset($Settings["NodeType"]) ? $Settings["NodeType"] : $this->Default["NodeType"];
- $Size = isset($Settings["Size"]) ? $Settings["Size"] : $this->Default["Size"];
- $Shape = isset($Settings["Shape"]) ? $Settings["Shape"] : $this->Default["Shape"];
- $FreeZone = isset($Settings["FreeZone"]) ? $Settings["FreeZone"] : $this->Default["FreeZone"];
-
- if ( $Surrounding != NULL ) { $BorderR = $R + $Surrounding; $BorderG = $G + $Surrounding; $BorderB = $B + $Surrounding; }
-
- $this->Data[$NodeID]["R"] = $R; $this->Data[$NodeID]["G"] = $G; $this->Data[$NodeID]["B"] = $B; $this->Data[$NodeID]["Alpha"] = $Alpha;
- $this->Data[$NodeID]["BorderR"] = $BorderR; $this->Data[$NodeID]["BorderG"] = $BorderG; $this->Data[$NodeID]["BorderB"] = $BorderB; $this->Data[$NodeID]["BorderAlpha"] = $BorderAlpha;
- $this->Data[$NodeID]["BackgroundR"] = $BackgroundR; $this->Data[$NodeID]["BackgroundG"] = $BackgroundG; $this->Data[$NodeID]["BackgroundB"] = $BackgroundB; $this->Data[$NodeID]["BackgroundAlpha"] = $BackgroundAlpha;
- $this->Data[$NodeID]["Name"] = $Name;
- $this->Data[$NodeID]["Force"] = $Force;
- $this->Data[$NodeID]["Type"] = $NodeType;
- $this->Data[$NodeID]["Size"] = $Size;
- $this->Data[$NodeID]["Shape"] = $Shape;
- $this->Data[$NodeID]["FreeZone"] = $FreeZone;
- if ( $Connections != NULL )
- {
- if ( is_array($Connections ) )
- {
- foreach($Connections as $Key => $Value)
- $this->Data[$NodeID]["Connections"][] = $Value;
- }
- else
- $this->Data[$NodeID]["Connections"][] = $Connections;
- }
- }
-
- /* Set color attribute for a list of nodes */
- function setNodesColor($Nodes,$Settings="")
- {
- if ( is_array($Nodes) )
- {
- foreach ($Nodes as $Key => $NodeID)
- {
- if (isset($this->Data[$NodeID]) )
- {
- if ( isset($Settings["R"]) ) { $this->Data[$NodeID]["R"] = $Settings["R"]; }
- if ( isset($Settings["G"]) ) { $this->Data[$NodeID]["G"] = $Settings["G"]; }
- if ( isset($Settings["B"]) ) { $this->Data[$NodeID]["B"] = $Settings["B"]; }
- if ( isset($Settings["Alpha"]) ) { $this->Data[$NodeID]["Alpha"] = $Settings["Alpha"]; }
- if ( isset($Settings["BorderR"]) ) { $this->Data[$NodeID]["BorderR"] = $Settings["BorderR"]; }
- if ( isset($Settings["BorderG"]) ) { $this->Data[$NodeID]["BorderG"] = $Settings["BorderG"]; }
- if ( isset($Settings["BorderB"]) ) { $this->Data[$NodeID]["BorderB"] = $Settings["BorderB"]; }
- if ( isset($Settings["BorderAlpha"]) ) { $this->Data[$NodeID]["BorderAlpha"] = $Settings["BorderAlpha"]; }
- if ( isset($Settings["Surrounding"]) ) { $this->Data[$NodeID]["BorderR"] = $this->Data[$NodeID]["R"] + $Settings["Surrounding"]; $this->Data[$NodeID]["BorderG"] = $this->Data[$NodeID]["G"] + $Settings["Surrounding"]; $this->Data[$NodeID]["BorderB"] = $this->Data[$NodeID]["B"] + $Settings["Surrounding"]; }
- }
- }
- }
- else
- {
- if ( isset($Settings["R"]) ) { $this->Data[$Nodes]["R"] = $Settings["R"]; }
- if ( isset($Settings["G"]) ) { $this->Data[$Nodes]["G"] = $Settings["G"]; }
- if ( isset($Settings["B"]) ) { $this->Data[$Nodes]["B"] = $Settings["B"]; }
- if ( isset($Settings["Alpha"]) ) { $this->Data[$Nodes]["Alpha"] = $Settings["Alpha"]; }
- if ( isset($Settings["BorderR"]) ) { $this->Data[$Nodes]["BorderR"] = $Settings["BorderR"]; }
- if ( isset($Settings["BorderG"]) ) { $this->Data[$Nodes]["BorderG"] = $Settings["BorderG"]; }
- if ( isset($Settings["BorderB"]) ) { $this->Data[$Nodes]["BorderB"] = $Settings["BorderB"]; }
- if ( isset($Settings["BorderAlpha"]) ) { $this->Data[$Nodes]["BorderAlpha"] = $Settings["BorderAlpha"]; }
- if ( isset($Settings["Surrounding"]) ) { $this->Data[$Nodes]["BorderR"] = $this->Data[$NodeID]["R"] + $Settings["Surrounding"]; $this->Data[$NodeID]["BorderG"] = $this->Data[$NodeID]["G"] + $Settings["Surrounding"]; $this->Data[$NodeID]["BorderB"] = $this->Data[$NodeID]["B"] + $Settings["Surrounding"]; }
- }
- }
-
- /* Returns all the nodes details */
- function dumpNodes()
- { return($this->Data); }
-
- /* Check if a connection exists and create it if required */
- function checkConnection($SourceID, $TargetID)
- {
- if ( isset($this->Data[$SourceID]["Connections"]) )
- {
- foreach ($this->Data[$SourceID]["Connections"] as $Key => $ConnectionID)
- { if ( $TargetID == $ConnectionID ) { return(TRUE); } }
- }
- $this->Data[$SourceID]["Connections"][] = $TargetID;
- }
- /* Get the median linked nodes position */
- function getMedianOffset($Key,$X,$Y)
- {
- $Cpt = 1;
- if ( isset($this->Data[$Key]["Connections"]) )
- {
- foreach($this->Data[$Key]["Connections"] as $ID => $NodeID)
- {
- if ( isset($this->Data[$NodeID]["X"]) && isset($this->Data[$NodeID]["Y"]) )
- {
- $X = $X + $this->Data[$NodeID]["X"];
- $Y = $Y + $this->Data[$NodeID]["Y"];
- $Cpt++;
- }
- }
- }
- return(array("X"=>$X/$Cpt,"Y"=>$Y/$Cpt));
- }
-
- /* Return the ID of the attached partner with the biggest weight */
- function getBiggestPartner($Key)
- {
- if ( !isset($this->Data[$Key]["Connections"]) ) { return(""); }
-
- $MaxWeight = 0; $Result = "";
- foreach($this->Data[$Key]["Connections"] as $Key => $PeerID)
- {
- if ( $this->Data[$PeerID]["Weight"] > $MaxWeight )
- { $MaxWeight = $this->Data[$PeerID]["Weight"]; $Result = $PeerID; }
- }
- return($Result);
- }
-
- /* Do the initial node positions computing pass */
- function firstPass($Algorithm)
- {
- $CenterX = ($this->X2 - $this->X1) / 2 + $this->X1;
- $CenterY = ($this->Y2 - $this->Y1) / 2 + $this->Y1;
-
- /* Check connections reciprocity */
- foreach($this->Data as $Key => $Settings)
- {
- if ( isset($Settings["Connections"]) )
- {
- foreach($Settings["Connections"] as $ID => $ConnectionID)
- $this->checkConnection($ConnectionID,$Key);
- }
- }
-
- if ( $this->AutoComputeFreeZone ) { $this->autoFreeZone(); }
-
- /* Get the max number of connections */
- $MaxConnections = 0;
- foreach($this->Data as $Key => $Settings)
- { if ( isset($Settings["Connections"]) ) { if ( $MaxConnections < count($Settings["Connections"] ) ) { $MaxConnections = count($Settings["Connections"]); } } }
-
- if ( $Algorithm == ALGORITHM_WEIGHTED )
- {
- foreach($this->Data as $Key => $Settings)
- {
- if ( $Settings["Type"] == NODE_TYPE_CENTRAL ) { $this->Data[$Key]["X"] = $CenterX; $this->Data[$Key]["Y"] = $CenterY; }
- if ( $Settings["Type"] == NODE_TYPE_FREE )
- {
- if ( isset($Settings["Connections"]) )
- { $Connections = count($Settings["Connections"]); }
- else
- { $Connections = 0; }
-
- $Ring = $MaxConnections - $Connections;
- $Angle = rand(0,360);
-
- $this->Data[$Key]["X"] = cos(deg2rad($Angle)) * ($Ring*$this->RingSize) + $CenterX;
- $this->Data[$Key]["Y"] = sin(deg2rad($Angle)) * ($Ring*$this->RingSize) + $CenterY;
- }
- }
- }
- elseif ( $Algorithm == ALGORITHM_CENTRAL )
- {
- /* Put a weight on each nodes */
- foreach($this->Data as $Key => $Settings)
- {
- if ( isset($Settings["Connections"]) )
- $this->Data[$Key]["Weight"] = count($Settings["Connections"]);
- else
- $this->Data[$Key]["Weight"] = 0;
- }
-
- $MaxConnections = $MaxConnections + 1;
- for($i=$MaxConnections;$i>=0;$i--)
- {
- foreach($this->Data as $Key => $Settings)
- {
- if ( $Settings["Type"] == NODE_TYPE_CENTRAL ) { $this->Data[$Key]["X"] = $CenterX; $this->Data[$Key]["Y"] = $CenterY; }
- if ( $Settings["Type"] == NODE_TYPE_FREE )
- {
- if ( isset($Settings["Connections"]) )
- { $Connections = count($Settings["Connections"]); }
- else
- { $Connections = 0; }
-
- if ( $Connections == $i )
- {
- $BiggestPartner = $this->getBiggestPartner($Key);
- if ( $BiggestPartner != "" )
- {
- $Ring = $this->Data[$BiggestPartner]["FreeZone"];
- $Weight = $this->Data[$BiggestPartner]["Weight"];
- $AngleDivision = 360 / $this->Data[$BiggestPartner]["Weight"];
- $Done = FALSE; $Tries = 0;
- while (!$Done && $Tries <= $Weight*2)
- {
- $Tries++;
- $Angle = floor(rand(0,$Weight)*$AngleDivision);
- if ( !isset($this->Data[$BiggestPartner]["Angular"][$Angle]) || !isset($this->Data[$BiggestPartner]["Angular"]) )
- {
- $this->Data[$BiggestPartner]["Angular"][$Angle] = $Angle;
- $Done = TRUE;
- }
- }
- if ( !$Done )
- { $Angle = rand(0,360); $this->Data[$BiggestPartner]["Angular"][$Angle] = $Angle; }
-
- $X = cos(deg2rad($Angle)) * ($Ring) + $this->Data[$BiggestPartner]["X"];
- $Y = sin(deg2rad($Angle)) * ($Ring) + $this->Data[$BiggestPartner]["Y"];
-
- $this->Data[$Key]["X"] = $X;
- $this->Data[$Key]["Y"] = $Y;
- }
- }
- }
- }
- }
- }
- elseif ( $Algorithm == ALGORITHM_CIRCULAR )
- {
- $MaxConnections = $MaxConnections + 1;
- for($i=$MaxConnections;$i>=0;$i--)
- {
- foreach($this->Data as $Key => $Settings)
- {
- if ( $Settings["Type"] == NODE_TYPE_CENTRAL ) { $this->Data[$Key]["X"] = $CenterX; $this->Data[$Key]["Y"] = $CenterY; }
- if ( $Settings["Type"] == NODE_TYPE_FREE )
- {
- if ( isset($Settings["Connections"]) )
- { $Connections = count($Settings["Connections"]); }
- else
- { $Connections = 0; }
-
- if ( $Connections == $i )
- {
- $Ring = $MaxConnections - $Connections;
- $Angle = rand(0,360);
-
- $X = cos(deg2rad($Angle)) * ($Ring*$this->RingSize) + $CenterX;
- $Y = sin(deg2rad($Angle)) * ($Ring*$this->RingSize) + $CenterY;
-
- $MedianOffset = $this->getMedianOffset($Key,$X,$Y);
-
- $this->Data[$Key]["X"] = $MedianOffset["X"];
- $this->Data[$Key]["Y"] = $MedianOffset["Y"];
- }
- }
- }
- }
- }
- elseif ( $Algorithm == ALGORITHM_RANDOM )
- {
- foreach($this->Data as $Key => $Settings)
- {
- if ( $Settings["Type"] == NODE_TYPE_FREE )
- {
- $this->Data[$Key]["X"] = $CenterX + rand(-20,20);
- $this->Data[$Key]["Y"] = $CenterY + rand(-20,20);
- }
- if ( $Settings["Type"] == NODE_TYPE_CENTRAL ) { $this->Data[$Key]["X"] = $CenterX; $this->Data[$Key]["Y"] = $CenterY; }
- }
- }
- }
-
- /* Compute one pass */
- function doPass()
- {
- /* Compute vectors */
- foreach($this->Data as $Key => $Settings)
- {
- if ( $Settings["Type"] != NODE_TYPE_CENTRAL )
- {
- unset($this->Data[$Key]["Vectors"]);
-
- $X1 = $Settings["X"];
- $Y1 = $Settings["Y"];
-
- /* Repulsion vectors */
- foreach($this->Data as $Key2 => $Settings2)
- {
- if ( $Key != $Key2 )
- {
- $X2 = $this->Data[$Key2]["X"];
- $Y2 = $this->Data[$Key2]["Y"];
- $FreeZone = $this->Data[$Key2]["FreeZone"];
-
- $Distance = $this->getDistance($X1,$Y1,$X2,$Y2);
- $Angle = $this->getAngle($X1,$Y1,$X2,$Y2) + 180;
-
- /* Nodes too close, repulsion occurs */
- if ( $Distance < $FreeZone )
- {
- $Force = log(pow(2,$FreeZone-$Distance));
- if ( $Force > 1 )
- { $this->Data[$Key]["Vectors"][] = array("Type"=>"R","Angle"=>$Angle % 360,"Force"=>$Force); }
- }
- }
- }
-
- /* Attraction vectors */
- if ( isset($Settings["Connections"]) )
- {
- foreach($Settings["Connections"] as $ID => $NodeID)
- {
- if ( isset($this->Data[$NodeID]) )
- {
- $X2 = $this->Data[$NodeID]["X"];
- $Y2 = $this->Data[$NodeID]["Y"];
- $FreeZone = $this->Data[$Key2]["FreeZone"];
-
- $Distance = $this->getDistance($X1,$Y1,$X2,$Y2);
- $Angle = $this->getAngle($X1,$Y1,$X2,$Y2);
-
- if ( $Distance > $FreeZone )
- $Force = log(($Distance-$FreeZone)+1);
- else
- { $Force = log(($FreeZone-$Distance)+1); ($Angle = $Angle + 180); }
-
- if ( $Force > 1 )
- $this->Data[$Key]["Vectors"][] = array("Type"=>"A","Angle"=>$Angle % 360,"Force"=>$Force);
- }
- }
- }
- }
- }
-
- /* Move the nodes accoding to the vectors */
- foreach($this->Data as $Key => $Settings)
- {
- $X = $Settings["X"];
- $Y = $Settings["Y"];
-
- if ( isset($Settings["Vectors"]) && $Settings["Type"] != NODE_TYPE_CENTRAL )
- {
- foreach($Settings["Vectors"] as $ID => $Vector)
- {
- $Type = $Vector["Type"];
- $Force = $Vector["Force"];
- $Angle = $Vector["Angle"];
- $Factor = $Type == "A" ? $this->MagneticForceA : $this->MagneticForceR;
-
- $X = cos(deg2rad($Angle)) * $Force * $Factor + $X;
- $Y = sin(deg2rad($Angle)) * $Force * $Factor + $Y;
- }
- }
-
- $this->Data[$Key]["X"] = $X;
- $this->Data[$Key]["Y"] = $Y;
- }
- }
-
- function lastPass()
- {
- /* Put everything inside the graph area */
- foreach($this->Data as $Key => $Settings)
- {
- $X = $Settings["X"];
- $Y = $Settings["Y"];
-
- if ( $X < $this->X1 ) { $X = $this->X1; }
- if ( $X > $this->X2 ) { $X = $this->X2; }
- if ( $Y < $this->Y1 ) { $Y = $this->Y1; }
- if ( $Y > $this->Y2 ) { $Y = $this->Y2; }
-
- $this->Data[$Key]["X"] = $X;
- $this->Data[$Key]["Y"] = $Y;
- }
-
- /* Dump all links */
- $Links = "";
- foreach($this->Data as $Key => $Settings)
- {
- $X1 = $Settings["X"];
- $Y1 = $Settings["Y"];
-
- if ( isset($Settings["Connections"]) )
- {
- foreach ($Settings["Connections"] as $ID => $NodeID)
- {
- if ( isset($this->Data[$NodeID]) )
- {
- $X2 = $this->Data[$NodeID]["X"];
- $Y2 = $this->Data[$NodeID]["Y"];
-
- $Links[] = array("X1"=>$X1,"Y1"=>$Y1,"X2"=>$X2,"Y2"=>$Y2,"Source"=>$Settings["Name"],"Destination"=>$this->Data[$NodeID]["Name"]);
- }
- }
- }
- }
-
- /* Check collisions */
- $Conflicts = 0;
- foreach($this->Data as $Key => $Settings)
- {
- $X1 = $Settings["X"];
- $Y1 = $Settings["Y"];
-
- if ( isset($Settings["Connections"]) )
- {
- foreach ($Settings["Connections"] as $ID => $NodeID)
- {
- if ( isset($this->Data[$NodeID]) )
- {
- $X2 = $this->Data[$NodeID]["X"];
- $Y2 = $this->Data[$NodeID]["Y"];
-
- foreach($Links as $IDLinks => $Link)
- {
- $X3 = $Link["X1"]; $Y3 = $Link["Y1"]; $X4 = $Link["X2"]; $Y4 = $Link["Y2"];
-
- if ( !($X1 == $X3 && $X2 == $X4 && $Y1 == $Y3 && $Y2 == $Y4 ) )
- {
- if ( $this->intersect($X1,$Y1,$X2,$Y2,$X3,$Y3,$X4,$Y4) )
- {
- if ( $Link["Source"] != $Settings["Name"] && $Link["Source"] != $this->Data[$NodeID]["Name"] && $Link["Destination"] != $Settings["Name"] && $Link["Destination"] != $this->Data[$NodeID]["Name"] )
- { $Conflicts++; }
- }
- }
- }
- }
- }
- }
- }
- return($Conflicts/2);
- }
-
- /* Center the graph */
- function center()
- {
- /* Determine the real center */
- $TargetCenterX = ($this->X2 - $this->X1) / 2 + $this->X1;
- $TargetCenterY = ($this->Y2 - $this->Y1) / 2 + $this->Y1;
-
- /* Get current boundaries */
- $XMin = $this->X2; $XMax = $this->X1;
- $YMin = $this->Y2; $YMax = $this->Y1;
- foreach($this->Data as $Key => $Settings)
- {
- $X = $Settings["X"];
- $Y = $Settings["Y"];
-
- if ( $X < $XMin) { $XMin = $X; }
- if ( $X > $XMax) { $XMax = $X; }
- if ( $Y < $YMin) { $YMin = $Y; }
- if ( $Y > $YMax) { $YMax = $Y; }
- }
- $CurrentCenterX = ($XMax - $XMin) / 2 + $XMin;
- $CurrentCenterY = ($YMax - $YMin) / 2 + $YMin;
-
- /* Compute the offset to apply */
- $XOffset = $TargetCenterX - $CurrentCenterX;
- $YOffset = $TargetCenterY - $CurrentCenterY;
-
- /* Correct the points position */
- foreach($this->Data as $Key => $Settings)
- {
- $this->Data[$Key]["X"] = $Settings["X"] + $XOffset;
- $this->Data[$Key]["Y"] = $Settings["Y"] + $YOffset;
- }
- }
-
- /* Create the encoded string */
- function drawSpring($Object,$Settings="")
- {
- $this->pChartObject = $Object;
-
- $Pass = isset($Settings["Pass"]) ? $Settings["Pass"] : 50;
- $Retries = isset($Settings["Retry"]) ? $Settings["Retry"] : 10;
- $this->MagneticForceA = isset($Settings["MagneticForceA"]) ? $Settings["MagneticForceA"] : 1.5;
- $this->MagneticForceR = isset($Settings["MagneticForceR"]) ? $Settings["MagneticForceR"] : 2;
- $this->RingSize = isset($Settings["RingSize"]) ? $Settings["RingSize"] : 40;
- $DrawVectors = isset($Settings["DrawVectors"]) ? $Settings["DrawVectors"] : FALSE;
- $DrawQuietZone = isset($Settings["DrawQuietZone"]) ? $Settings["DrawQuietZone"] : FALSE;
- $CenterGraph = isset($Settings["CenterGraph"]) ? $Settings["CenterGraph"] : TRUE;
- $TextPadding = isset($Settings["TextPadding"]) ? $Settings["TextPadding"] : 4;
- $Algorithm = isset($Settings["Algorithm"]) ? $Settings["Algorithm"] : ALGORITHM_WEIGHTED;
-
- $FontSize = $Object->FontSize;
- $this->X1 = $Object->GraphAreaX1;
- $this->Y1 = $Object->GraphAreaY1;
- $this->X2 = $Object->GraphAreaX2;
- $this->Y2 = $Object->GraphAreaY2;
-
- $Conflicts = 1; $Jobs = 0; $this->History["MinimumConflicts"] = -1;
- while ($Conflicts != 0 && $Jobs < $Retries )
- {
- $Jobs++;
-
- /* Compute the initial settings */
- $this->firstPass($Algorithm);
-
- /* Apply the vectors */
- if ( $Pass > 0 )
- {
- for ($i=0; $i<=$Pass; $i++) { $this->doPass(); }
- }
-
- $Conflicts = $this->lastPass();
- if ( $this->History["MinimumConflicts"] == -1 || $Conflicts < $this->History["MinimumConflicts"] )
- { $this->History["MinimumConflicts"] = $Conflicts; $this->History["Result"] = $this->Data; }
- }
-
- $Conflicts = $this->History["MinimumConflicts"];
- $this->Data = $this->History["Result"];
-
- if ( $CenterGraph ) { $this->center(); }
-
- /* Draw the connections */
- $Drawn = "";
- foreach($this->Data as $Key => $Settings)
- {
- $X = $Settings["X"];
- $Y = $Settings["Y"];
-
- if ( isset($Settings["Connections"]) )
- {
- foreach ($Settings["Connections"] as $ID => $NodeID)
- {
- if ( !isset($Drawn[$Key]) ) { $Drawn[$Key] = ""; }
- if ( !isset($Drawn[$NodeID]) ) { $Drawn[$NodeID] = ""; }
-
- if ( isset($this->Data[$NodeID]) && !isset($Drawn[$Key][$NodeID]) && !isset($Drawn[$NodeID][$Key]) )
- {
- $Color = array("R"=>$this->Default["LinkR"],"G"=>$this->Default["LinkG"],"B"=>$this->Default["LinkB"],"Alpha"=>$this->Default["Alpha"]);
-
- if ( $this->Links != "" )
- {
- if ( isset($this->Links[$Key][$NodeID]["R"]) )
- { $Color = array("R"=>$this->Links[$Key][$NodeID]["R"],"G"=>$this->Links[$Key][$NodeID]["G"],"B"=>$this->Links[$Key][$NodeID]["B"],"Alpha"=>$this->Links[$Key][$NodeID]["Alpha"]); }
-
- if ( isset($this->Links[$Key][$NodeID]["Ticks"]) )
- { $Color["Ticks"] = $this->Links[$Key][$NodeID]["Ticks"]; }
- }
-
- $X2 = $this->Data[$NodeID]["X"];
- $Y2 = $this->Data[$NodeID]["Y"];
- $this->pChartObject->drawLine($X,$Y,$X2,$Y2,$Color);
- $Drawn[$Key][$NodeID] = TRUE;
-
- if ( isset($this->Links) && $this->Links != "" )
- {
- if ( isset($this->Links[$Key][$NodeID]["Name"]) || isset($this->Links[$NodeID][$Key]["Name"]) )
- {
- $Name = isset($this->Links[$Key][$NodeID]["Name"]) ? $this->Links[$Key][$NodeID]["Name"] : $this->Links[$NodeID][$Key]["Name"];
- $TxtX = ($X2 - $X)/2 + $X;
- $TxtY = ($Y2 - $Y)/2 + $Y;
-
- if ( $X <= $X2 )
- $Angle = (360-$this->getAngle($X,$Y,$X2,$Y2)) % 360;
- else
- $Angle = (360-$this->getAngle($X2,$Y2,$X,$Y)) % 360;
-
- $Settings = $Color;
- $Settings["Angle"] = $Angle;
- $Settings["Align"] = TEXT_ALIGN_BOTTOMMIDDLE;
- $this->pChartObject->drawText($TxtX,$TxtY,$Name,$Settings);
- }
- }
- }
- }
- }
- }
-
- /* Draw the quiet zones */
- if ( $DrawQuietZone )
- {
- foreach($this->Data as $Key => $Settings)
- {
- $X = $Settings["X"];
- $Y = $Settings["Y"];
- $FreeZone = $Settings["FreeZone"];
-
- $this->pChartObject->drawFilledCircle($X,$Y,$FreeZone,array("R"=>0,"G"=>0,"B"=>0,"Alpha"=>2));
- }
- }
-
-
- /* Draw the nodes */
- foreach($this->Data as $Key => $Settings)
- {
- $X = $Settings["X"];
- $Y = $Settings["Y"];
- $Name = $Settings["Name"];
- $FreeZone = $Settings["FreeZone"];
- $Shape = $Settings["Shape"];
- $Size = $Settings["Size"];
-
- $Color = array("R"=>$Settings["R"],"G"=>$Settings["G"],"B"=>$Settings["B"],"Alpha"=>$Settings["Alpha"],"BorderR"=>$Settings["BorderR"],"BorderG"=>$Settings["BorderG"],"BorderB"=>$Settings["BorderB"],"BorderApha"=>$Settings["BorderAlpha"]);
-
- if ( $Shape == NODE_SHAPE_CIRCLE )
- {
- $this->pChartObject->drawFilledCircle($X,$Y,$Size,$Color);
- }
- elseif ( $Shape == NODE_SHAPE_TRIANGLE )
- {
- $Points = "";
- $Points[] = cos(deg2rad(270)) * $Size + $X; $Points[] = sin(deg2rad(270)) * $Size + $Y;
- $Points[] = cos(deg2rad(45)) * $Size + $X; $Points[] = sin(deg2rad(45)) * $Size + $Y;
- $Points[] = cos(deg2rad(135)) * $Size + $X; $Points[] = sin(deg2rad(135)) * $Size + $Y;
- $this->pChartObject->drawPolygon($Points,$Color);
- }
- elseif ( $Shape == NODE_SHAPE_SQUARE )
- {
- $Offset = $Size/2; $Size = $Size / 2;
- $this->pChartObject->drawFilledRectangle($X-$Offset,$Y-$Offset,$X+$Offset,$Y+$Offset,$Color);
- }
-
- if ( $Name != "" )
- {
- $LabelOptions = array("R"=>$this->Labels["R"],"G"=>$this->Labels["G"],"B"=>$this->Labels["B"],"Alpha"=>$this->Labels["Alpha"]);
-
- if ( $this->Labels["Type"] == LABEL_LIGHT )
- {
- $LabelOptions["Align"] = TEXT_ALIGN_BOTTOMLEFT;
- $this->pChartObject->drawText($X,$Y,$Name,$LabelOptions);
- }
- elseif ( $this->Labels["Type"] == LABEL_CLASSIC )
- {
- $LabelOptions["Align"] = TEXT_ALIGN_TOPMIDDLE;
- $LabelOptions["DrawBox"] = TRUE;
- $LabelOptions["BoxAlpha"] = 50;
- $LabelOptions["BorderOffset"] = 4;
- $LabelOptions["RoundedRadius"] = 3;
- $LabelOptions["BoxRounded"] = TRUE;
- $LabelOptions["NoShadow"] = TRUE;
-
- $this->pChartObject->drawText($X,$Y+$Size+$TextPadding,$Name,$LabelOptions);
- }
- }
- }
-
- /* Draw the vectors */
- if ( $DrawVectors )
- {
- foreach($this->Data as $Key => $Settings)
- {
- $X1 = $Settings["X"];
- $Y1 = $Settings["Y"];
-
- if ( isset($Settings["Vectors"]) && $Settings["Type"] != NODE_TYPE_CENTRAL )
- {
- foreach($Settings["Vectors"] as $ID => $Vector)
- {
- $Type = $Vector["Type"];
- $Force = $Vector["Force"];
- $Angle = $Vector["Angle"];
- $Factor = $Type == "A" ? $this->MagneticForceA : $this->MagneticForceR;
- $Color = $Type == "A" ? array("FillR"=>255,"FillG"=>0,"FillB"=>0) : array("FillR"=>0,"FillG"=>255,"FillB"=>0);
-
- $X2 = cos(deg2rad($Angle)) * $Force * $Factor + $X1;
- $Y2 = sin(deg2rad($Angle)) * $Force * $Factor + $Y1;
-
- $this->pChartObject->drawArrow($X1,$Y1,$X2,$Y2,$Color);
- }
- }
- }
- }
-
- return(array("Pass"=>$Jobs,"Conflicts"=>$Conflicts));
- }
-
- /* Return the distance between two points */
- function getDistance($X1,$Y1,$X2,$Y2)
- { return (sqrt(($X2-$X1)*($X2-$X1)+($Y2-$Y1)*($Y2-$Y1))); }
-
- /* Return the angle made by a line and the X axis */
- function getAngle($X1,$Y1,$X2,$Y2)
- {
- $Opposite = $Y2 - $Y1; $Adjacent = $X2 - $X1;$Angle = rad2deg(atan2($Opposite,$Adjacent));
- if ($Angle > 0) { return($Angle); } else { return(360-abs($Angle)); }
- }
-
- function intersect($X1,$Y1,$X2,$Y2,$X3,$Y3,$X4,$Y4)
- {
- $A = (($X3 * $Y4 - $X4 * $Y3) * ($X1 - $X2) - ($X1 * $Y2 - $X2 * $Y1) * ($X3 - $X4));
- $B = (($Y1 - $Y2) * ($X3 - $X4) - ($Y3 - $Y4) * ($X1 - $X2));
-
- if ( $B == 0 ) { return(FALSE); }
- $Xi = $A / $B;
-
- $C = ($X1 - $X2);
- if ( $C == 0 ) { return(FALSE); }
- $Yi = $Xi * (($Y1 - $Y2)/$C) + (($X1 * $Y2 - $X2 * $Y1)/$C);
-
- if ( $Xi >= min($X1,$X2) && $Xi >= min($X3,$X4) && $Xi <= max($X1,$X2) && $Xi <= max($X3,$X4))
- {
- if ( $Yi >= min($Y1,$Y2) && $Yi >= min($Y3,$Y4) && $Yi <= max($Y1,$Y2) && $Yi <= max($Y3,$Y4))
- { return(TRUE); }
- }
-
- return(FALSE);
- }
- }
-?> \ No newline at end of file