/**
* Created by Alex on 2/6/14.
*/
var physicsMixin = {
/**
* Toggling barnes Hut calculation on and off.
*
* @private
*/
_toggleBarnesHut: function () {
this.constants.physics.barnesHut.enabled = !this.constants.physics.barnesHut.enabled;
this._loadSelectedForceSolver();
this.moving = true;
this.start();
},
/**
* This loads the node force solver based on the barnes hut or repulsion algorithm
*
* @private
*/
_loadSelectedForceSolver: function () {
// this overloads the this._calculateNodeForces
if (this.constants.physics.barnesHut.enabled == true) {
this._clearMixin(repulsionMixin);
this._clearMixin(hierarchalRepulsionMixin);
this.constants.physics.centralGravity = this.constants.physics.barnesHut.centralGravity;
this.constants.physics.springLength = this.constants.physics.barnesHut.springLength;
this.constants.physics.springConstant = this.constants.physics.barnesHut.springConstant;
this.constants.physics.damping = this.constants.physics.barnesHut.damping;
this._loadMixin(barnesHutMixin);
}
else if (this.constants.physics.hierarchicalRepulsion.enabled == true) {
this._clearMixin(barnesHutMixin);
this._clearMixin(repulsionMixin);
this.constants.physics.centralGravity = this.constants.physics.hierarchicalRepulsion.centralGravity;
this.constants.physics.springLength = this.constants.physics.hierarchicalRepulsion.springLength;
this.constants.physics.springConstant = this.constants.physics.hierarchicalRepulsion.springConstant;
this.constants.physics.damping = this.constants.physics.hierarchicalRepulsion.damping;
this._loadMixin(hierarchalRepulsionMixin);
}
else {
this._clearMixin(barnesHutMixin);
this._clearMixin(hierarchalRepulsionMixin);
this.barnesHutTree = undefined;
this.constants.physics.centralGravity = this.constants.physics.repulsion.centralGravity;
this.constants.physics.springLength = this.constants.physics.repulsion.springLength;
this.constants.physics.springConstant = this.constants.physics.repulsion.springConstant;
this.constants.physics.damping = this.constants.physics.repulsion.damping;
this._loadMixin(repulsionMixin);
}
},
/**
* Before calculating the forces, we check if we need to cluster to keep up performance and we check
* if there is more than one node. If it is just one node, we dont calculate anything.
*
* @private
*/
_initializeForceCalculation: function () {
// stop calculation if there is only one node
if (this.nodeIndices.length == 1) {
this.nodes[this.nodeIndices[0]]._setForce(0, 0);
}
else {
// if there are too many nodes on screen, we cluster without repositioning
if (this.nodeIndices.length > this.constants.clustering.clusterThreshold && this.constants.clustering.enabled == true) {
this.clusterToFit(this.constants.clustering.reduceToNodes, false);
}
// we now start the force calculation
this._calculateForces();
}
},
/**
* Calculate the external forces acting on the nodes
* Forces are caused by: edges, repulsing forces between nodes, gravity
* @private
*/
_calculateForces: function () {
// Gravity is required to keep separated groups from floating off
// the forces are reset to zero in this loop by using _setForce instead
// of _addForce
this._calculateGravitationalForces();
this._calculateNodeForces();
if (this.constants.smoothCurves == true) {
this._calculateSpringForcesWithSupport();
}
else {
this._calculateSpringForces();
}
},
/**
* Smooth curves are created by adding invisible nodes in the center of the edges. These nodes are also
* handled in the calculateForces function. We then use a quadratic curve with the center node as control.
* This function joins the datanodes and invisible (called support) nodes into one object.
* We do this so we do not contaminate this.nodes with the support nodes.
*
* @private
*/
_updateCalculationNodes: function () {
if (this.constants.smoothCurves == true) {
this.calculationNodes = {};
this.calculationNodeIndices = [];
for (var nodeId in this.nodes) {
if (this.nodes.hasOwnProperty(nodeId)) {
this.calculationNodes[nodeId] = this.nodes[nodeId];
}
}
var supportNodes = this.sectors['support']['nodes'];
for (var supportNodeId in supportNodes) {
if (supportNodes.hasOwnProperty(supportNodeId)) {
if (this.edges.hasOwnProperty(supportNodes[supportNodeId].parentEdgeId)) {
this.calculationNodes[supportNodeId] = supportNodes[supportNodeId];
}
else {
supportNodes[supportNodeId]._setForce(0, 0);
}
}
}
for (var idx in this.calculationNodes) {
if (this.calculationNodes.hasOwnProperty(idx)) {
this.calculationNodeIndices.push(idx);
}
}
}
else {
this.calculationNodes = this.nodes;
this.calculationNodeIndices = this.nodeIndices;
}
},
/**
* this function applies the central gravity effect to keep groups from floating off
*
* @private
*/
_calculateGravitationalForces: function () {
var dx, dy, distance, node, i;
var nodes = this.calculationNodes;
var gravity = this.constants.physics.centralGravity;
var gravityForce = 0;
for (i = 0; i < this.calculationNodeIndices.length; i++) {
node = nodes[this.calculationNodeIndices[i]];
node.damping = this.constants.physics.damping; // possibly add function to alter damping properties of clusters.
// gravity does not apply when we are in a pocket sector
if (this._sector() == "default" && gravity != 0) {
dx = -node.x;
dy = -node.y;
distance = Math.sqrt(dx * dx + dy * dy);
gravityForce = (distance == 0) ? 0 : (gravity / distance);
node.fx = dx * gravityForce;
node.fy = dy * gravityForce;
}
else {
node.fx = 0;
node.fy = 0;
}
}
},
/**
* this function calculates the effects of the springs in the case of unsmooth curves.
*
* @private
*/
_calculateSpringForces: function () {
var edgeLength, edge, edgeId;
var dx, dy, fx, fy, springForce, distance;
var edges = this.edges;
// forces caused by the edges, modelled as springs
for (edgeId in edges) {
if (edges.hasOwnProperty(edgeId)) {
edge = edges[edgeId];
if (edge.connected) {
// only calculate forces if nodes are in the same sector
if (this.nodes.hasOwnProperty(edge.toId) && this.nodes.hasOwnProperty(edge.fromId)) {
edgeLength = edge.customLength ? edge.length : this.constants.physics.springLength;
// this implies that the edges between big clusters are longer
edgeLength += (edge.to.clusterSize + edge.from.clusterSize - 2) * this.constants.clustering.edgeGrowth;
dx = (edge.from.x - edge.to.x);
dy = (edge.from.y - edge.to.y);
distance = Math.sqrt(dx * dx + dy * dy);
if (distance == 0) {
distance = 0.01;
}
// the 1/distance is so the fx and fy can be calculated without sine or cosine.
springForce = this.constants.physics.springConstant * (edgeLength - distance) / distance;
fx = dx * springForce;
fy = dy * springForce;
edge.from.fx += fx;
edge.from.fy += fy;
edge.to.fx -= fx;
edge.to.fy -= fy;
}
}
}
}
},
/**
* This function calculates the springforces on the nodes, accounting for the support nodes.
*
* @private
*/
_calculateSpringForcesWithSupport: function () {
var edgeLength, edge, edgeId, combinedClusterSize;
var edges = this.edges;
// forces caused by the edges, modelled as springs
for (edgeId in edges) {
if (edges.hasOwnProperty(edgeId)) {
edge = edges[edgeId];
if (edge.connected) {
// only calculate forces if nodes are in the same sector
if (this.nodes.hasOwnProperty(edge.toId) && this.nodes.hasOwnProperty(edge.fromId)) {
if (edge.via != null) {
var node1 = edge.to;
var node2 = edge.via;
var node3 = edge.from;
edgeLength = edge.customLength ? edge.length : this.constants.physics.springLength;
combinedClusterSize = node1.clusterSize + node3.clusterSize - 2;
// this implies that the edges between big clusters are longer
edgeLength += combinedClusterSize * this.constants.clustering.edgeGrowth;
this._calculateSpringForce(node1, node2, 0.5 * edgeLength);
this._calculateSpringForce(node2, node3, 0.5 * edgeLength);
}
}
}
}
}
},
/**
* This is the code actually performing the calculation for the function above. It is split out to avoid repetition.
*
* @param node1
* @param node2
* @param edgeLength
* @private
*/
_calculateSpringForce: function (node1, node2, edgeLength) {
var dx, dy, fx, fy, springForce, distance;
dx = (node1.x - node2.x);
dy = (node1.y - node2.y);
distance = Math.sqrt(dx * dx + dy * dy);
if (distance == 0) {
distance = 0.01;
}
// the 1/distance is so the fx and fy can be calculated without sine or cosine.
springForce = this.constants.physics.springConstant * (edgeLength - distance) / distance;
fx = dx * springForce;
fy = dy * springForce;
node1.fx += fx;
node1.fy += fy;
node2.fx -= fx;
node2.fy -= fy;
},
/**
* Load the HTML for the physics config and bind it
* @private
*/
_loadPhysicsConfiguration: function () {
if (this.physicsConfiguration === undefined) {
this.backupConstants = {};
util.copyObject(this.constants, this.backupConstants);
var hierarchicalLayoutDirections = ["LR", "RL", "UD", "DU"];
this.physicsConfiguration = document.createElement('div');
this.physicsConfiguration.className = "PhysicsConfiguration";
this.physicsConfiguration.innerHTML = '' +
'<table><tr><td><b>Simulation Mode:</b></td></tr>' +
'<tr>' +
'<td width="120px"><input type="radio" name="graph_physicsMethod" id="graph_physicsMethod1" value="BH" checked="checked">Barnes Hut</td>' +
'<td width="120px"><input type="radio" name="graph_physicsMethod" id="graph_physicsMethod2" value="R">Repulsion</td>' +
'<td width="120px"><input type="radio" name="graph_physicsMethod" id="graph_physicsMethod3" value="H">Hierarchical</td>' +
'</tr>' +
'</table>' +
'<table id="graph_BH_table" style="display:none">' +
'<tr><td><b>Barnes Hut</b></td></tr>' +
'<tr>' +
'<td width="150px">gravitationalConstant</td><td>0</td><td><input type="range" min="0" max="20000" value="' + (-1 * this.constants.physics.barnesHut.gravitationalConstant) + '" step="25" style="width:300px" id="graph_BH_gc"></td><td width="50px">-20000</td><td><input value="' + (-1 * this.constants.physics.barnesHut.gravitationalConstant) + '" id="graph_BH_gc_value" style="width:60px"></td>' +
'</tr>' +
'<tr>' +
'<td width="150px">centralGravity</td><td>0</td><td><input type="range" min="0" max="3" value="' + this.constants.physics.barnesHut.centralGravity + '" step="0.05" style="width:300px" id="graph_BH_cg"></td><td>3</td><td><input value="' + this.constants.physics.barnesHut.centralGravity + '" id="graph_BH_cg_value" style="width:60px"></td>' +
'</tr>' +
'<tr>' +
'<td width="150px">springLength</td><td>0</td><td><input type="range" min="0" max="500" value="' + this.constants.physics.barnesHut.springLength + '" step="1" style="width:300px" id="graph_BH_sl"></td><td>500</td><td><input value="' + this.constants.physics.barnesHut.springLength + '" id="graph_BH_sl_value" style="width:60px"></td>' +
'</tr>' +
'<tr>' +
'<td width="150px">springConstant</td><td>0</td><td><input type="range" min="0" max="0.5" value="' + this.constants.physics.barnesHut.springConstant + '" step="0.001" style="width:300px" id="graph_BH_sc"></td><td>0.5</td><td><input value="' + this.constants.physics.barnesHut.springConstant + '" id="graph_BH_sc_value" style="width:60px"></td>' +
'</tr>' +
'<tr>' +
'<td width="150px">damping</td><td>0</td><td><input type="range" min="0" max="0.3" value="' + this.constants.physics.barnesHut.damping + '" step="0.005" style="width:300px" id="graph_BH_damp"></td><td>0.3</td><td><input value="' + this.constants.physics.barnesHut.damping + '" id="graph_BH_damp_value" style="width:60px"></td>' +
'</tr>' +
'</table>' +
'<table id="graph_R_table" style="display:none">' +
'<tr><td><b>Repulsion</b></td></tr>' +
'<tr>' +
'<td width="150px">nodeDistance</td><td>0</td><td><input type="range" min="0" max="300" value="' + this.constants.physics.repulsion.nodeDistance + '" step="1" style="width:300px" id="graph_R_nd"></td><td width="50px">300</td><td><input value="' + this.constants.physics.repulsion.nodeDistance + '" id="graph_R_nd_value" style="width:60px"></td>' +
'</tr>' +
'<tr>' +
'<td width="150px">centralGravity</td><td>0</td><td><input type="range" min="0" max="3" value="' + this.constants.physics.repulsion.centralGravity + '" step="0.05" style="width:300px" id="graph_R_cg"></td><td>3</td><td><input value="' + this.constants.physics.repulsion.centralGravity + '" id="graph_R_cg_value" style="width:60px"></td>' +
'</tr>' +
'<tr>' +
'<td width="150px">springLength</td><td>0</td><td><input type="range" min="0" max="500" value="' + this.constants.physics.repulsion.springLength + '" step="1" style="width:300px" id="graph_R_sl"></td><td>500</td><td><input value="' + this.constants.physics.repulsion.springLength + '" id="graph_R_sl_value" style="width:60px"></td>' +
'</tr>' +
'<tr>' +
'<td width="150px">springConstant</td><td>0</td><td><input type="range" min="0" max="0.5" value="' + this.constants.physics.repulsion.springConstant + '" step="0.001" style="width:300px" id="graph_R_sc"></td><td>0.5</td><td><input value="' + this.constants.physics.repulsion.springConstant + '" id="graph_R_sc_value" style="width:60px"></td>' +
'</tr>' +
'<tr>' +
'<td width="150px">damping</td><td>0</td><td><input type="range" min="0" max="0.3" value="' + this.constants.physics.repulsion.damping + '" step="0.005" style="width:300px" id="graph_R_damp"></td><td>0.3</td><td><input value="' + this.constants.physics.repulsion.damping + '" id="graph_R_damp_value" style="width:60px"></td>' +
'</tr>' +
'</table>' +
'<table id="graph_H_table" style="display:none">' +
'<tr><td width="150"><b>Hierarchical</b></td></tr>' +
'<tr>' +
'<td width="150px">nodeDistance</td><td>0</td><td><input type="range" min="0" max="300" value="' + this.constants.physics.hierarchicalRepulsion.nodeDistance + '" step="1" style="width:300px" id="graph_H_nd"></td><td width="50px">300</td><td><input value="' + this.constants.physics.hierarchicalRepulsion.nodeDistance + '" id="graph_H_nd_value" style="width:60px"></td>' +
'</tr>' +
'<tr>' +
'<td width="150px">centralGravity</td><td>0</td><td><input type="range" min="0" max="3" value="' + this.constants.physics.hierarchicalRepulsion.centralGravity + '" step="0.05" style="width:300px" id="graph_H_cg"></td><td>3</td><td><input value="' + this.constants.physics.hierarchicalRepulsion.centralGravity + '" id="graph_H_cg_value" style="width:60px"></td>' +
'</tr>' +
'<tr>' +
'<td width="150px">springLength</td><td>0</td><td><input type="range" min="0" max="500" value="' + this.constants.physics.hierarchicalRepulsion.springLength + '" step="1" style="width:300px" id="graph_H_sl"></td><td>500</td><td><input value="' + this.constants.physics.hierarchicalRepulsion.springLength + '" id="graph_H_sl_value" style="width:60px"></td>' +
'</tr>' +
'<tr>' +
'<td width="150px">springConstant</td><td>0</td><td><input type="range" min="0" max="0.5" value="' + this.constants.physics.hierarchicalRepulsion.springConstant + '" step="0.001" style="width:300px" id="graph_H_sc"></td><td>0.5</td><td><input value="' + this.constants.physics.hierarchicalRepulsion.springConstant + '" id="graph_H_sc_value" style="width:60px"></td>' +
'</tr>' +
'<tr>' +
'<td width="150px">damping</td><td>0</td><td><input type="range" min="0" max="0.3" value="' + this.constants.physics.hierarchicalRepulsion.damping + '" step="0.005" style="width:300px" id="graph_H_damp"></td><td>0.3</td><td><input value="' + this.constants.physics.hierarchicalRepulsion.damping + '" id="graph_H_damp_value" style="width:60px"></td>' +
'</tr>' +
'<tr>' +
'<td width="150px">direction</td><td>1</td><td><input type="range" min="0" max="3" value="' + hierarchicalLayoutDirections.indexOf(this.constants.hierarchicalLayout.direction) + '" step="1" style="width:300px" id="graph_H_direction"></td><td>4</td><td><input value="' + this.constants.hierarchicalLayout.direction + '" id="graph_H_direction_value" style="width:60px"></td>' +
'</tr>' +
'<tr>' +
'<td width="150px">levelSeparation</td><td>1</td><td><input type="range" min="0" max="500" value="' + this.constants.hierarchicalLayout.levelSeparation + '" step="1" style="width:300px" id="graph_H_levsep"></td><td>500</td><td><input value="' + this.constants.hierarchicalLayout.levelSeparation + '" id="graph_H_levsep_value" style="width:60px"></td>' +
'</tr>' +
'<tr>' +
'<td width="150px">nodeSpacing</td><td>1</td><td><input type="range" min="0" max="500" value="' + this.constants.hierarchicalLayout.nodeSpacing + '" step="1" style="width:300px" id="graph_H_nspac"></td><td>500</td><td><input value="' + this.constants.hierarchicalLayout.nodeSpacing + '" id="graph_H_nspac_value" style="width:60px"></td>' +
'</tr>' +
'</table>' +
'<table><tr><td><b>Options:</b></td></tr>' +
'<tr>' +
'<td width="180px"><input type="button" id="graph_toggleSmooth" value="Toggle smoothCurves" style="width:150px"></td>' +
'<td width="180px"><input type="button" id="graph_repositionNodes" value="Reinitialize" style="width:150px"></td>' +
'<td width="180px"><input type="button" id="graph_generateOptions" value="Generate Options" style="width:150px"></td>' +
'</tr>' +
'</table>'
this.containerElement.parentElement.insertBefore(this.physicsConfiguration, this.containerElement);
this.optionsDiv = document.createElement("div");
this.optionsDiv.style.fontSize = "14px";
this.optionsDiv.style.fontFamily = "verdana";
this.containerElement.parentElement.insertBefore(this.optionsDiv, this.containerElement);
var rangeElement;
rangeElement = document.getElementById('graph_BH_gc');
rangeElement.onchange = showValueOfRange.bind(this, 'graph_BH_gc', -1, "physics_barnesHut_gravitationalConstant");
rangeElement = document.getElementById('graph_BH_cg');
rangeElement.onchange = showValueOfRange.bind(this, 'graph_BH_cg', 1, "physics_centralGravity");
rangeElement = document.getElementById('graph_BH_sc');
rangeElement.onchange = showValueOfRange.bind(this, 'graph_BH_sc', 1, "physics_springConstant");
rangeElement = document.getElementById('graph_BH_sl');
rangeElement.onchange = showValueOfRange.bind(this, 'graph_BH_sl', 1, "physics_springLength");
rangeElement = document.getElementById('graph_BH_damp');
rangeElement.onchange = showValueOfRange.bind(this, 'graph_BH_damp', 1, "physics_damping");
rangeElement = document.getElementById('graph_R_nd');
rangeElement.onchange = showValueOfRange.bind(this, 'graph_R_nd', 1, "physics_repulsion_nodeDistance");
rangeElement = document.getElementById('graph_R_cg');
rangeElement.onchange = showValueOfRange.bind(this, 'graph_R_cg', 1, "physics_centralGravity");
rangeElement = document.getElementById('graph_R_sc');
rangeElement.onchange = showValueOfRange.bind(this, 'graph_R_sc', 1, "physics_springConstant");
rangeElement = document.getElementById('graph_R_sl');
rangeElement.onchange = showValueOfRange.bind(this, 'graph_R_sl', 1, "physics_springLength");
rangeElement = document.getElementById('graph_R_damp');
rangeElement.onchange = showValueOfRange.bind(this, 'graph_R_damp', 1, "physics_damping");
rangeElement = document.getElementById('graph_H_nd');
rangeElement.onchange = showValueOfRange.bind(this, 'graph_H_nd', 1, "physics_hierarchicalRepulsion_nodeDistance");
rangeElement = document.getElementById('graph_H_cg');
rangeElement.onchange = showValueOfRange.bind(this, 'graph_H_cg', 1, "physics_centralGravity");
rangeElement = document.getElementById('graph_H_sc');
rangeElement.onchange = showValueOfRange.bind(this, 'graph_H_sc', 1, "physics_springConstant");
rangeElement = document.getElementById('graph_H_sl');
rangeElement.onchange = showValueOfRange.bind(this, 'graph_H_sl', 1, "physics_springLength");
rangeElement = document.getElementById('graph_H_damp');
rangeElement.onchange = showValueOfRange.bind(this, 'graph_H_damp', 1, "physics_damping");
rangeElement = document.getElementById('graph_H_direction');
rangeElement.onchange = showValueOfRange.bind(this, 'graph_H_direction', hierarchicalLayoutDirections, "hierarchicalLayout_direction");
rangeElement = document.getElementById('graph_H_levsep');
rangeElement.onchange = showValueOfRange.bind(this, 'graph_H_levsep', 1, "hierarchicalLayout_levelSeparation");
rangeElement = document.getElementById('graph_H_nspac');
rangeElement.onchange = showValueOfRange.bind(this, 'graph_H_nspac', 1, "hierarchicalLayout_nodeSpacing");
var radioButton1 = document.getElementById("graph_physicsMethod1");
var radioButton2 = document.getElementById("graph_physicsMethod2");
var radioButton3 = document.getElementById("graph_physicsMethod3");
radioButton2.checked = true;
if (this.constants.physics.barnesHut.enabled) {
radioButton1.checked = true;
}
if (this.constants.hierarchicalLayout.enabled) {
radioButton3.checked = true;
}
var graph_toggleSmooth = document.getElementById("graph_toggleSmooth");
var graph_repositionNodes = document.getElementById("graph_repositionNodes");
var graph_generateOptions = document.getElementById("graph_generateOptions");
graph_toggleSmooth.onclick = graphToggleSmoothCurves.bind(this);
graph_repositionNodes.onclick = graphRepositionNodes.bind(this);
graph_generateOptions.onclick = graphGenerateOptions.bind(this);
if (this.constants.smoothCurves == true) {
graph_toggleSmooth.style.background = "#A4FF56";
}
else {
graph_toggleSmooth.style.background = "#FF8532";
}
switchConfigurations.apply(this);
radioButton1.onchange = switchConfigurations.bind(this);
radioButton2.onchange = switchConfigurations.bind(this);
radioButton3.onchange = switchConfigurations.bind(this);
}
},
/**
* This overwrites the this.constants.
*
* @param constantsVariableName
* @param value
* @private
*/
_overWriteGraphConstants: function (constantsVariableName, value) {
var nameArray = constantsVariableName.split("_");
if (nameArray.length == 1) {
this.constants[nameArray[0]] = value;
}
else if (nameArray.length == 2) {
this.constants[nameArray[0]][nameArray[1]] = value;
}
else if (nameArray.length == 3) {
this.constants[nameArray[0]][nameArray[1]][nameArray[2]] = value;
}
}
};
/**
* this function is bound to the toggle smooth curves button. That is also why it is not in the prototype.
*/
function graphToggleSmoothCurves () {
this.constants.smoothCurves = !this.constants.smoothCurves;
var graph_toggleSmooth = document.getElementById("graph_toggleSmooth");
if (this.constants.smoothCurves == true) {graph_toggleSmooth.style.background = "#A4FF56";}
else {graph_toggleSmooth.style.background = "#FF8532";}
this._configureSmoothCurves(false);
};
/**
* this function is used to scramble the nodes
*
*/
function graphRepositionNodes () {
for (var nodeId in this.calculationNodes) {
if (this.calculationNodes.hasOwnProperty(nodeId)) {
this.calculationNodes[nodeId].vx = 0; this.calculationNodes[nodeId].vy = 0;
this.calculationNodes[nodeId].fx = 0; this.calculationNodes[nodeId].fy = 0;
}
}
if (this.constants.hierarchicalLayout.enabled == true) {
this._setupHierarchicalLayout();
}
else {
this.repositionNodes();
}
this.moving = true;
this.start();
};
/**
* this is used to generate an options file from the playing with physics system.
*/
function graphGenerateOptions () {
var options = "No options are required, default values used.";
var optionsSpecific = [];
var radioButton1 = document.getElementById("graph_physicsMethod1");
var radioButton2 = document.getElementById("graph_physicsMethod2");
if (radioButton1.checked == true) {
if (this.constants.physics.barnesHut.gravitationalConstant != this.backupConstants.physics.barnesHut.gravitationalConstant) {optionsSpecific.push("gravitationalConstant: " + this.constants.physics.barnesHut.gravitationalConstant);}
if (this.constants.physics.centralGravity != this.backupConstants.physics.barnesHut.centralGravity) {optionsSpecific.push("centralGravity: " + this.constants.physics.centralGravity);}
if (this.constants.physics.springLength != this.backupConstants.physics.barnesHut.springLength) {optionsSpecific.push("springLength: " + this.constants.physics.springLength);}
if (this.constants.physics.springConstant != this.backupConstants.physics.barnesHut.springConstant) {optionsSpecific.push("springConstant: " + this.constants.physics.springConstant);}
if (this.constants.physics.damping != this.backupConstants.physics.barnesHut.damping) {optionsSpecific.push("damping: " + this.constants.physics.damping);}
if (optionsSpecific.length != 0) {
options = "var options = {";
options += "physics: {barnesHut: {";
for (var i = 0; i < optionsSpecific.length; i++) {
options += optionsSpecific[i];
if (i < optionsSpecific.length - 1) {
options += ", "
}
}
options += '}}'
}
if (this.constants.smoothCurves != this.backupConstants.smoothCurves) {
if (optionsSpecific.length == 0) {options = "var options = {";}
else {options += ", "}
options += "smoothCurves: " + this.constants.smoothCurves;
}
if (options != "No options are required, default values used.") {
options += '};'
}
}
else if (radioButton2.checked == true) {
options = "var options = {";
options += "physics: {barnesHut: {enabled: false}";
if (this.constants.physics.repulsion.nodeDistance != this.backupConstants.physics.repulsion.nodeDistance) {optionsSpecific.push("nodeDistance: " + this.constants.physics.repulsion.nodeDistance);}
if (this.constants.physics.centralGravity != this.backupConstants.physics.repulsion.centralGravity) {optionsSpecific.push("centralGravity: " + this.constants.physics.centralGravity);}
if (this.constants.physics.springLength != this.backupConstants.physics.repulsion.springLength) {optionsSpecific.push("springLength: " + this.constants.physics.springLength);}
if (this.constants.physics.springConstant != this.backupConstants.physics.repulsion.springConstant) {optionsSpecific.push("springConstant: " + this.constants.physics.springConstant);}
if (this.constants.physics.damping != this.backupConstants.physics.repulsion.damping) {optionsSpecific.push("damping: " + this.constants.physics.damping);}
if (optionsSpecific.length != 0) {
options += ", repulsion: {";
for (var i = 0; i < optionsSpecific.length; i++) {
options += optionsSpecific[i];
if (i < optionsSpecific.length - 1) {
options += ", "
}
}
options += '}}'
}
if (optionsSpecific.length == 0) {options += "}"}
if (this.constants.smoothCurves != this.backupConstants.smoothCurves) {
options += ", smoothCurves: " + this.constants.smoothCurves;
}
options += '};'
}
else {
options = "var options = {";
if (this.constants.physics.hierarchicalRepulsion.nodeDistance != this.backupConstants.physics.hierarchicalRepulsion.nodeDistance) {optionsSpecific.push("nodeDistance: " + this.constants.physics.hierarchicalRepulsion.nodeDistance);}
if (this.constants.physics.centralGravity != this.backupConstants.physics.hierarchicalRepulsion.centralGravity) {optionsSpecific.push("centralGravity: " + this.constants.physics.centralGravity);}
if (this.constants.physics.springLength != this.backupConstants.physics.hierarchicalRepulsion.springLength) {optionsSpecific.push("springLength: " + this.constants.physics.springLength);}
if (this.constants.physics.springConstant != this.backupConstants.physics.hierarchicalRepulsion.springConstant) {optionsSpecific.push("springConstant: " + this.constants.physics.springConstant);}
if (this.constants.physics.damping != this.backupConstants.physics.hierarchicalRepulsion.damping) {optionsSpecific.push("damping: " + this.constants.physics.damping);}
if (optionsSpecific.length != 0) {
options += "physics: {hierarchicalRepulsion: {";
for (var i = 0; i < optionsSpecific.length; i++) {
options += optionsSpecific[i];
if (i < optionsSpecific.length - 1) {
options += ", ";
}
}
options += '}},';
}
options += 'hierarchicalLayout: {';
optionsSpecific = [];
if (this.constants.hierarchicalLayout.direction != this.backupConstants.hierarchicalLayout.direction) {optionsSpecific.push("direction: " + this.constants.hierarchicalLayout.direction);}
if (Math.abs(this.constants.hierarchicalLayout.levelSeparation) != this.backupConstants.hierarchicalLayout.levelSeparation) {optionsSpecific.push("levelSeparation: " + this.constants.hierarchicalLayout.levelSeparation);}
if (this.constants.hierarchicalLayout.nodeSpacing != this.backupConstants.hierarchicalLayout.nodeSpacing) {optionsSpecific.push("nodeSpacing: " + this.constants.hierarchicalLayout.nodeSpacing);}
if (optionsSpecific.length != 0) {
for (var i = 0; i < optionsSpecific.length; i++) {
options += optionsSpecific[i];
if (i < optionsSpecific.length - 1) {
options += ", "
}
}
options += '}'
}
else {
options += "enabled:true}";
}
options += '};'
}
this.optionsDiv.innerHTML = options;
};
/**
* this is used to switch between barnesHut, repulsion and hierarchical.
*
*/
function switchConfigurations () {
var ids = ["graph_BH_table", "graph_R_table", "graph_H_table"];
var radioButton = document.querySelector('input[name="graph_physicsMethod"]:checked').value;
var tableId = "graph_" + radioButton + "_table";
var table = document.getElementById(tableId);
table.style.display = "block";
for (var i = 0; i < ids.length; i++) {
if (ids[i] != tableId) {
table = document.getElementById(ids[i]);
table.style.display = "none";
}
}
this._restoreNodes();
if (radioButton == "R") {
this.constants.hierarchicalLayout.enabled = false;
this.constants.physics.hierarchicalRepulsion.enabled = false;
this.constants.physics.barnesHut.enabled = false;
}
else if (radioButton == "H") {
if (this.constants.hierarchicalLayout.enabled == false) {
this.constants.hierarchicalLayout.enabled = true;
this.constants.physics.hierarchicalRepulsion.enabled = true;
this.constants.physics.barnesHut.enabled = false;
this._setupHierarchicalLayout();
}
}
else {
this.constants.hierarchicalLayout.enabled = false;
this.constants.physics.hierarchicalRepulsion.enabled = false;
this.constants.physics.barnesHut.enabled = true;
}
this._loadSelectedForceSolver();
var graph_toggleSmooth = document.getElementById("graph_toggleSmooth");
if (this.constants.smoothCurves == true) {graph_toggleSmooth.style.background = "#A4FF56";}
else {graph_toggleSmooth.style.background = "#FF8532";}
this.moving = true;
this.start();
}
/**
* this generates the ranges depending on the iniital values.
*
* @param id
* @param map
* @param constantsVariableName
*/
function showValueOfRange (id,map,constantsVariableName) {
var valueId = id + "_value";
var rangeValue = document.getElementById(id).value;
if (map instanceof Array) {
document.getElementById(valueId).value = map[parseInt(rangeValue)];
this._overWriteGraphConstants(constantsVariableName,map[parseInt(rangeValue)]);
}
else {
document.getElementById(valueId).value = parseInt(map) * parseFloat(rangeValue);
this._overWriteGraphConstants(constantsVariableName, parseInt(map) * parseFloat(rangeValue));
}
if (constantsVariableName == "hierarchicalLayout_direction" ||
constantsVariableName == "hierarchicalLayout_levelSeparation" ||
constantsVariableName == "hierarchicalLayout_nodeSpacing") {
this._setupHierarchicalLayout();
}
this.moving = true;
this.start();
};