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Enter and Append Circles
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| license: mit |
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.
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <style> | |
| body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } | |
| svg { | |
| width: 100%; | |
| height: 100%; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script> | |
| var myData = [1,2,3,4,5]; | |
| var svgViewport = d3.select("body") | |
| .append("svg") | |
| .attr("width","560") | |
| .attr("height","900"); | |
| // Update | |
| var circleSelection = svgViewport.selectAll("circle").data(myData); | |
| // Enter and Append | |
| var circleElements = circleSelection.enter().append("circle"); | |
| // Set properties for each circle | |
| circleElements | |
| .attr("cx",function(d,i) { return d * 50; }) | |
| .attr("cy",function(d,i) { return d * 50; }) | |
| .attr("r","25"); | |
| function colorCircles(d,i) { | |
| return i % 2 === 0 ? 'green' : 'red'; | |
| } | |
| // Style each circle | |
| var circleStyle = circleElements.style("fill", colorCircles); | |
| </script> | |
| </body> |
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