<trclass='toggle collapsible'onclick="toggleTable('optionTable','barnesHut', this);"><td><spanparent="barnesHut"class="right-caret"></span> barnesHut</td><tdclass="mid">Object</td><tdclass="mid"><code>Object</code></td><td>BarnesHut is a quadtree based gravity model. This is the fastest, default and recommended solver for non-hierarchical layouts.</td></tr>
<trclass='toggle collapsible'onclick="toggleTable('optionTable','barnesHut', this);"><td><spanparent="barnesHut"class="right-caret"></span> barnesHut</td><tdclass="mid">Object</td><tdclass="mid"><code>Object</code></td><td>BarnesHut is a quadtree based gravity model. This is the fastest, default and recommended solver for non-hierarchical layouts.</td></tr>
<trparent="barnesHut"class="hidden"><tdclass="indent">barnesHut.gravitationalConstant</td><tdclass="mid">Number</td><tdclass="mid"><code>-2000</code></td><td>Gravity attracts. We like repulsion. So the value is negative. If you want the repulsion to be stronger, decrease the value (so -10000, -50000).</td></tr>
<trparent="barnesHut"class="hidden"><tdclass="indent">barnesHut.centralGravity</td><tdclass="mid">Number</td><tdclass="mid"><code>0.3</code></td><td>There is a central gravity attractor to pull the entire network back to the center.</td></tr>
<trparent="barnesHut"class="hidden"><tdclass="indent">barnesHut.springLength</td><tdclass="mid">Number</td><tdclass="mid"><code>95</code></td><td>The edges are modelled as springs. This springLength here is the the rest length of the spring.</td></tr>
<trparent="barnesHut"class="hidden"><tdclass="indent">barnesHut.springConstant</td><tdclass="mid">Number</td><tdclass="mid"><code>0.04</code></td><td>This is how 'sturdy' the springs are. Higher values mean stronger springs.</td></tr>
<trparent="barnesHut"class="hidden"><tdclass="indent">barnesHut.damping</td><tdclass="mid">Number</td><tdclass="mid"><code>0.09</code></td><td>Accepted range: <code>[0 .. 1]</code>. The damping factor is how much of the velocity from the previous physics simulation iteration carries over to the next iteration.</td></tr>
<trclass='toggle collapsible'onclick="toggleTable('optionTable','forceAtlas2Based', this);"><td><spanparent="forceAtlas2Based"class="right-caret"></span> forceAtlas2Based</td><tdclass="mid">Object</td><tdclass="mid"><code>Object</code></td><td>Force Atlas 2 has been developed by <ahref="http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0098679"target="_blank">Jacomi <i>et al</i> (2014)</a> for use with Gephi. The forceAtlas2Based solver makes use of some of the equations provided
by them and makes use of the barnesHut implementation in vis. The main differences are the central gravity model,
which is here distance independent, and the repulsion being linear instead of quadratic. Finally, all node masses have a
multiplier based on the amount of connected edges plus one.</td></tr>
<trparent="forceAtlas2Based"class="hidden"><tdclass="indent">forceAtlas2Based.gravitationalConstant</td><tdclass="mid">Number</td><tdclass="mid"><code>-800</code></td><td>This is similar to the barnesHut method except that the falloff is linear instead of quadratic. The connectivity is also taken into account as a factor of the mass. If you want the repulsion to be stronger, decrease the value (so -1000, -2000).</td></tr>
<trparent="forceAtlas2Based"class="hidden"><tdclass="indent">forceAtlas2Based.centralGravity</td><tdclass="mid">Number</td><tdclass="mid"><code>0.01</code></td><td>There is a central gravity attractor to pull the entire network back to the center. This is not dependent on distance.</td></tr>
<trparent="forceAtlas2Based"class="hidden"><tdclass="indent">forceAtlas2Based.springLength</td><tdclass="mid">Number</td><tdclass="mid"><code>100</code></td><td>The edges are modelled as springs. This springLength here is the the rest length of the spring.</td></tr>
<trparent="forceAtlas2Based"class="hidden"><tdclass="indent">forceAtlas2Based.springConstant</td><tdclass="mid">Number</td><tdclass="mid"><code>0.08</code></td><td>This is how 'sturdy' the springs are. Higher values mean stronger springs.</td></tr>
<trparent="forceAtlas2Based"class="hidden"><tdclass="indent">forceAtlas2Based.damping</td><tdclass="mid">Number</td><tdclass="mid"><code>0.4</code></td><td>Accepted range: <code>[0 .. 1]</code>. The damping factor is how much of the velocity from the previous physics simulation iteration carries over to the next iteration.</td></tr>
<trclass='toggle collapsible'onclick="toggleTable('optionTable','repulsion', this);"><td><spanparent="repulsion"class="right-caret"></span> repulsion</td><tdclass="mid">Object</td><tdclass="mid"><code>Object</code></td><td>The repulsion model assumes nodes have a simplified repulsion field around them. It's force linearly decreases from 1 (at 0.5*nodeDistance and smaller) to 0 (at 2*nodeDistance).</td></tr>
<trparent="repulsion"class="hidden"><tdclass="indent">repulsion.nodeDistance</td><tdclass="mid">Number</td><tdclass="mid"><code>100</code></td><td>This is the range of influence for the repulsion.</td></tr>
<trparent="repulsion"class="hidden"><tdclass="indent">repulsion.centralGravity</td><tdclass="mid">Number</td><tdclass="mid"><code>0.2</code></td><td>There is a central gravity attractor to pull the entire network back to the center.</td></tr>
@ -158,7 +176,7 @@ network.setOptions(options);
<tr><td>maxVelocity</td><tdclass="mid">Number</td><tdclass="mid"><code>50</code></td><td>The physics module limits the maximum velocity of the nodes to increase the time to stabilization. This is the maximium value.</td></tr>
<tr><td>minVelocity</td><tdclass="mid">Number</td><tdclass="mid"><code>0.1</code></td><td>Once the minimum velocity is reached for all nodes, we assume the network has been stabilized and the simulation stops.</td></tr>
<tr><td>solver</td><tdclass="mid">String</td><tdclass="mid"><code>'barnesHut'</code></td><td>You can select your own solver. Possible options: <code>'barnesHut', 'repulsion', 'hierarchicalRepulsion'</code>. When setting the hierarchical layout, the hierarchical repulsion solver is automaticaly selected, regardless of what you fill in here.</td></tr>
<tr><td>solver</td><tdclass="mid">String</td><tdclass="mid"><code>'barnesHut'</code></td><td>You can select your own solver. Possible options: <code>'barnesHut', 'repulsion', 'hierarchicalRepulsion', 'forceAtlas2Based'</code>. When setting the hierarchical layout, the hierarchical repulsion solver is automaticaly selected, regardless of what you fill in here.</td></tr>
<trclass='toggle collapsible'onclick="toggleTable('optionTable','stabilization', this);"><td><spanparent="stabilization"class="right-caret"></span> stabilization</td><tdclass="mid">Object | Boolean</td><tdclass="mid"><code>Object</code></td><td>When true, the network is stabilized on load using default settings. If false, stabilization is disabled. To further customize this, you can supply an object.</td></tr>
<trparent="stabilization"class="hidden"><tdclass="indent">stabilization.enabled</td><tdclass="mid">Boolean</td><tdclass="mid"><code>true</code></td><td>Toggle the stabilization. This is an optional property. If undefined, it is automatically set to true when any of the properties of this object are defined.</td></tr>
<trparent="stabilization"class="hidden"><tdclass="indent">stabilization.iterations</td><tdclass="mid">Number</td><tdclass="mid"><code>1000</code></td><td>The physics module tries to stabilize the network on load up til a maximum number of iterations defined here. If the network stabilized with less, you are finished before the maximum number.</td></tr>
Alex de Mulder
9 years ago