layoutAttractive: function()

in core/src/main/resources/org/apache/karaf/webconsole/core/behavior/dracula/dracula_graph.js [399:424]

• 24 lines of code
• 4 McCabe index (conditional complexity)

    layoutAttractive: function(edge) {
        var node1 = edge.source;
        var node2 = edge.target;
        
        var dx = node2.layoutPosX - node1.layoutPosX;
        var dy = node2.layoutPosY - node1.layoutPosY;
        var d2 = dx * dx + dy * dy;
        if(d2 < 0.01) {
            dx = 0.1 * Math.random() + 0.1;
            dy = 0.1 * Math.random() + 0.1;
            var d2 = dx * dx + dy * dy;
        }
        var d = Math.sqrt(d2);
        if(d > this.maxRepulsiveForceDistance) {
            d = this.maxRepulsiveForceDistance;
            d2 = d * d;
        }
        var attractiveForce = (d2 - this.k * this.k) / this.k;
        if(edge.attraction == undefined) edge.attraction = 1;
        attractiveForce *= Math.log(edge.attraction) * 0.5 + 1;
        
        node2.layoutForceX -= attractiveForce * dx / d;
        node2.layoutForceY -= attractiveForce * dy / d;
        node1.layoutForceX += attractiveForce * dx / d;
        node1.layoutForceY += attractiveForce * dy / d;
    }