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pcnchart

v0.10.1

Published

Create an SVG string to display Process Chain Network data

Downloads

14

Readme

pcnchart

Utility for generating an SVG flowchart from Process Chain Network

pcnchart takes a single input; data conforming to the following specification:

https://github.com/mjswensen/pcn-spec

It outputs an SVG String.

##Installation##

npm install pcnchart

##Server-Side Usage##

For simple server-side rendering with an Express controller:

var charter = require('pcnchart');

exports.graph = function(req, res) {

  // Send PCN data conforming to Specification to chart utility
  var svg = charter(pcnDataStructure);

  // Set HTTP Headers for SVG
  res.set({
    'Content-Type': 'image/svg+xml',
    // Note: Sometimes necessary for embedding on a page 
    // 'X-Frame-Options': 'SAMEORIGIN' 
  });
  res.send(svg);
}

##Client-Side Usage##

Rendering on the client is also simple by using tools such as Browserify to include pcnchart into your browser scripts.

var pcnchart = require('pcnchart'); // Browserify or similar for using NPM

/* Get pcnDataStructure conforming to Specification */
var pcnDataStructure;

var svgElement = pcnchart(pcnDataStructure);

// Append the parsed SVG into a container
var container = document.getElementById('someContainerId');
container.appendChild(svgElement);

For your convenience, I've included pre-built files in the dist/ directory for using pcnchart in the browser. They expose the method pcnchart() that behaves exactly as demonstrated above, but you can ignore the require() statement.