pm4js/pm4js/visualization/dfg/frequency.js

Process Mining for Javascript

class FrequencyDfgGraphvizVisualizer {
	static uuidv4() {
	  return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
		var r = Math.random() * 16 | 0, v = c == 'x' ? r : (r & 0x3 | 0x8);
		return v.toString(16);
	  });
	}
	
	static nodeUuid() {
		let uuid = FrequencyDfgGraphvizVisualizer.uuidv4();
		return "n"+uuid.replace(/-/g, "");
	}
	
	static apply(frequencyDfg) {
		let ret = [];
		let uidMap = {};
		ret.push("digraph G {");
		for (let act in frequencyDfg.activities) {
			let nUid = FrequencyDfgGraphvizVisualizer.nodeUuid();
			uidMap[act] = nUid;
			ret.push(nUid+" [shape=box, label=\""+act+"\n"+frequencyDfg.activities[act]+"\"]");
		}
		let startNodeUid = FrequencyDfgGraphvizVisualizer.nodeUuid();
		let endNodeUid = FrequencyDfgGraphvizVisualizer.nodeUuid();
		ret.push(startNodeUid+" [shape=circle, label=\" \", style=filled, fillcolor=green]");
		ret.push(endNodeUid+" [shape=circle, label=\" \", style=filled, fillcolor=orange]");
		for (let sa in frequencyDfg.startActivities) {
			let occ = frequencyDfg.startActivities[sa];
			let penwidth = 0.5 + Math.log10(occ);
			ret.push(startNodeUid+" -> "+uidMap[sa]+" [label=\""+occ+"\", penwidth=\""+penwidth+"\"]");
		}
		for (let ea in frequencyDfg.endActivities) {
			let occ = frequencyDfg.endActivities[ea];
			let penwidth = 0.5 + Math.log10(occ);
			ret.push(uidMap[ea]+" -> "+endNodeUid+" [label=\""+occ+"\", penwidth=\""+penwidth+"\"]");
		}
		for (let arc in frequencyDfg.pathsFrequency) {
			let act1 = arc.split(",")[0];
			let act2 = arc.split(",")[1];
			let occ = frequencyDfg.pathsFrequency[arc];
			let penwidth = 0.5 + Math.log10(occ);
			ret.push(uidMap[act1]+" -> "+uidMap[act2]+" [label=\""+occ+"\", penwidth=\""+penwidth+"\"]");
		}
		ret.push("}");
		return ret.join("\n");
	}
}

try {
	module.exports = {FrequencyDfgGraphvizVisualizer: FrequencyDfgGraphvizVisualizer};
	global.FrequencyDfgGraphvizVisualizer = FrequencyDfgGraphvizVisualizer;
}
catch (err) {
	// not in node
}