Example of how to define custom features in TnT Board.
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January 14, 2016 10:57
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Custom features
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| var custom_feature = function (div) { | |
| var board = tnt.board().from(20).to(500).min(0).max(1000).width(950); | |
| // Axis track | |
| var axis_track = tnt.board.track() | |
| .height(0) | |
| .color("white") | |
| .display(tnt.board.track.feature.axis() | |
| .orientation("top") | |
| ); | |
| // arrow feature | |
| var arrow_feature = tnt.board.track.feature(); | |
| // Create | |
| arrow_feature.create (function (elems) { | |
| var xScale = arrow_feature.scale(); | |
| var track = this; | |
| var y = track.height(); | |
| var g = elems | |
| .append("g") | |
| .attr("transform", function (d) { | |
| return "translate(" + xScale(d.pos) + "," + y + ")"; | |
| }); | |
| g | |
| .append("line") | |
| .attr("x1", 0) | |
| .attr("y1", 0) | |
| .attr("x2", 0) | |
| .attr("y2", -(y/2)) | |
| .attr("stroke", function (d) { | |
| return d.color; | |
| }); | |
| g | |
| .append("line") | |
| .attr("x1", 0) | |
| .attr("y1", 0) | |
| .attr("x2", -5) | |
| .attr("y2", -(y/4)) | |
| .attr("stroke", function (d) { | |
| return d.color; | |
| }); | |
| g | |
| .append("line") | |
| .attr("x1", 0) | |
| .attr("y1", 0) | |
| .attr("x2", 5) | |
| .attr("y2", -(y/4)) | |
| .attr("stroke", function (d) { | |
| return d.color; | |
| }); | |
| }); | |
| // Move | |
| arrow_feature.move (function (arrows) { | |
| var track = this; | |
| var y = track.height(); | |
| var xScale = arrow_feature.scale(); | |
| arrows | |
| .select("g") | |
| .attr("transform", function (d) { | |
| return "translate(" + xScale(d.pos) + "," + y + ")"; | |
| }); | |
| }); | |
| // Data track | |
| var arrow_track = tnt.board.track() | |
| .height(60) | |
| .color("white") | |
| .display(arrow_feature) | |
| .data(tnt.board.track.data.sync() | |
| .retriever (function () { | |
| return [ | |
| { | |
| pos : 200, | |
| color : "blue" | |
| }, | |
| { | |
| pos : 355, | |
| color : "orange" | |
| }, | |
| { | |
| pos : 100, | |
| color : "brown" | |
| }, | |
| { | |
| pos : 400, | |
| color : "red" | |
| } | |
| ]; | |
| }) | |
| ); | |
| board | |
| .add_track([axis_track, arrow_track]); | |
| board(div); | |
| board.start(); | |
| }; |
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| <!DOCTYPE html> | |
| <head> | |
| <link rel="stylesheet" href="http://tntvis.github.io/tnt.board/build/tnt.board.css" type="text/css" /> | |
| <style> | |
| #mydiv { | |
| margin-top: 200px; | |
| } | |
| </style> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script src="http://tntvis.github.io/tnt.board/build/tnt.board.min.js"></script> | |
| <script src="custom_feature.js"></script> | |
| </head> | |
| <body> | |
| <div id="mydiv"></div> | |
| <script> | |
| custom_feature(document.getElementById("mydiv")); | |
| </script> | |
| </body> |
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