-
-
Save nick3499/985d4e0d831bc741ee6d2daaf78da4a1 to your computer and use it in GitHub Desktop.
D3byEX 8.4: Drag and Drop (Adapted to D3.js v4)
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <html> | |
| <meta charset=utf-8> | |
| <head> | |
| <meta name="description" content="D3.js v4, drag circles" /> | |
| </head> | |
| <body> | |
| <script src="http://d3js.org/d3.v4.min.js"></script> | |
| <script src="https://d3js.org/d3-selection-multi.v1.min.js"></script> | |
| <script> | |
| var width = 450, height = 450, radius = 50; | |
| var svg = d3.select('body') | |
| .append('svg') | |
| .attrs({ width: width, height: height }); | |
| var data = [ | |
| [width / 2 - radius, height / 2 - radius], | |
| [width / 2 - radius, height / 2 + radius], | |
| [width / 2 + radius, height / 2 - radius], | |
| [width / 2 + radius, height / 2 + radius] | |
| ]; | |
| var colors = d3.scaleOrdinal(d3.schemeCategory10); | |
| var circles = svg.selectAll('circle') | |
| .data(data) | |
| .enter() | |
| .append('circle') | |
| .attrs({r: radius, fill: colors, | |
| transform: function (d) { | |
| return 'translate(' + d + ')' | |
| } | |
| }); | |
| var dragBehavior = d3.drag().on('drag', onDrag); | |
| circles.call(dragBehavior); | |
| function onDrag(d) { | |
| var x = d3.event.x, y = d3.event.y; | |
| if ((x >= radius) && (x <= width - radius) && | |
| (y >= radius) && (y <= height - radius)) { | |
| d3.select(this) | |
| .attr('transform', function () { | |
| return 'translate(' + x + ', ' + y + ')'; | |
| }); | |
| } | |
| } | |
| </script> | |
| </body> | |
| </html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment