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November 2, 2016 00:47
multiTouchTest
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| license: mit |
This file contains 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> | |
| <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; } | |
| </style> | |
| </head> | |
| <body> | |
| <script> | |
| var nodes=[]; // 1 node=x,y,[id] | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", 960) | |
| .attr("height", 500) | |
| .on("click", svgClick); | |
| function svgClick(){ | |
| d3.event.preventDefault(); | |
| d3.event.stopPropagation(); | |
| d = d3.touches(this)[0]; // this not working | |
| svg.select("circle") | |
| .data(d) | |
| .enter() | |
| .append("circle") | |
| .attr("cx",d.x) | |
| .attr("cy",d.y) | |
| .attr("r",200) | |
| .attr("fill","red") | |
| .on("touchmove", circleTouchMove) | |
| .on("touchmove", circleTouchMove) | |
| .on("touchend", circleTouchEnd); | |
| nodes.push({x:cx,y:cy}); | |
| // input text until pressing Enter | |
| } | |
| function circleTouchStart(){ | |
| d3.event.preventDefault(); | |
| d3.event.stopPropagation(); | |
| } | |
| function circleTouchMove(){ | |
| d3.event.preventDefault(); | |
| d3.event.stopPropagation(); | |
| } | |
| function circleTouchEnd(){ | |
| d3.event.preventDefault(); | |
| d3.event.stopPropagation(); | |
| // | |
| } | |
| </script> | |
| </body> |
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