infovis

问题 Specifically I am looking at the JavaScript libraries; JavaScript InfoVis Toolkit, and D3 to draw flow charts and state machines. Both of these offer plenty of ways to visualize data. However none of the examples seem to meet the requirements below (especially for flow chart). To be clear I mean these. Flow chart (Sourced from: http://philosophy.hku.hk/think/strategy/chart.php) Have branches with a single start and end point. Labels on nodes and branches. Have a logical flow layout (e.g. not

问题 I'm using JavaScript InfoVis Toolkit (http://thejit.org/) and am trying to save the Spacetree that I output into an image. The Spacetree is outputted to a canvas. This problem is really frustrating me. I have tried: Opening the canvas in a new window Opening the div where the canvas is located in a new window Using Canvas2Image (http://www.nihilogic.dk/labs/canvas2image/) Here is my current Javascript method (tied to a button): function saveImage(div_id) { var canvas = document.getElementById

问题 I'm trying to capture a click event on an edge of a sunburst graph. I've already captured click events on nodes. This is what I'm trying: //..sunburst example code Events: { enable: true, enableForEdges: true, type: 'Native', onClick: function(node, eventInfo, e){ if (!node) return; if(node.nodeFrom){ console.log("target is an edge"); }else{ console.log("target is a node"); } } But this only captures node clicks. What's wrong? Thank you in advance. 回答1: The problem is that 'contains' method,