Generating a Triangle using D3.js
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February 5, 2017 14:06
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Basic Shapes - Triangle
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<!DOCTYPE> | |
<html lang="en"> | |
<head> | |
<meta charset="utf-8"> | |
<title>Basic Shapes - Triangle</title> | |
<!-- JavaScript Libraries //--> | |
<script src="http://d3js.org/d3.v3.min.js"></script> | |
<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script> | |
<!-- CSS Style //--> | |
<link href="style.css" rel="stylesheet" type="text/css"> | |
</head> | |
<body> | |
<div id="form" style="display:inline-block;float:left;"> | |
<div class="formElement"> | |
<span >X1</span> | |
<input id="x1" type="number"> | |
</div> | |
<div class="formElement"> | |
<span >Y1</span> | |
<input id="y1" type="number"> | |
</div> | |
<div class="formElement"> | |
<span >X2</span> | |
<input id="x2" type="number"> | |
</div> | |
<div class="formElement"> | |
<span >Y2</span> | |
<input id="y2" type="number"> | |
</div> | |
<div class="formElement"> | |
<span >X3</span> | |
<input id="x3" type="number"> | |
</div> | |
<div class="formElement"> | |
<span >Y3</span> | |
<input id="y3" type="number"> | |
</div> | |
<div class="formElement"> | |
<span >Fill Color</span> | |
<input id="fillColor" type="text"> | |
</div> | |
<div class="formElement"> | |
<span >Stroke Color</span> | |
<input id="strokeColor" type="text"> | |
</div> | |
<div class="formElement"> | |
<span >Stroke Width</span> | |
<input id="strokeWidth" type="number"> | |
</div> | |
<div class="formElement"> | |
<span >Width</span> | |
<input id="width" type="number"> | |
</div> | |
<div class="formElement"> | |
<span >Height</span> | |
<input id="height" type="number"> | |
</div> | |
</div> | |
<div id="triangle" style="display:inline-block;float:right;"></div> | |
</body> | |
<script type="text/javascript" src="main.js"></script> | |
<script> | |
var config = { | |
margin : {top: 50, right: 50, bottom: 50, left: 50}, | |
x1: 10, | |
y1: 10, | |
x2: 50, | |
y2: 20, | |
x3: 30, | |
y3: 50, | |
fill_color : "red", | |
width : 300, | |
height : 150, | |
stroke_color : "black", | |
stroke_width : 2, | |
dom_element : "#triangle" | |
}; | |
$("#x1").on("input",function(){ | |
config.x1 = parseInt($(this).val()); | |
renderTriangle(config,false); | |
}); | |
$("#y1").on("input",function(){ | |
config.y1 = parseInt($(this).val()); | |
renderTriangle(config,false); | |
}); | |
$("#x2").on("input",function(){ | |
config.x2 = parseInt($(this).val()); | |
renderTriangle(config,false); | |
}); | |
$("#y2").on("input",function(){ | |
config.y2 = parseInt($(this).val()); | |
renderTriangle(config,false); | |
}); | |
$("#x3").on("input",function(){ | |
config.x3 = parseInt($(this).val()); | |
renderTriangle(config,false); | |
}); | |
$("#y3").on("input",function(){ | |
config.y3 = parseInt($(this).val()); | |
renderTriangle(config,false); | |
}); | |
$("#fillColor").on("input",function(){ | |
config.fill_color = $(this).val(); | |
renderTriangle(config,false); | |
}); | |
$("#width").on("input",function(){ | |
config.width = parseInt($(this).val()); | |
renderTriangle(config,false); | |
}); | |
$("#height").on("input",function(){ | |
config.height = parseInt($(this).val()); | |
renderTriangle(config,false); | |
}); | |
$("#strokeColor").on("input",function(){ | |
config.stroke_color = $(this).val(); | |
renderTriangle(config,false); | |
}); | |
$("#strokeWidth").on("input",function(){ | |
config.stroke_width = parseInt($(this).val()); | |
renderTriangle(config,false); | |
}); | |
renderTriangle(config,true); | |
</script> | |
</html> |
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function renderTriangle(config,first_time){ | |
var lineData = [{ "x": config.x1, "y": config.y1},{ "x": config.x2, "y": config.y2}, | |
{ "x": config.x2, "y": config.y2},{ "x": config.x3, "y": config.y3}, | |
{ "x": config.x3, "y": config.y3},{ "x": config.x1, "y": config.y1}]; | |
//This is the accessor function we talked about above | |
var lineFunction = d3.svg.line() | |
.x(function(d) { return d.x; }) | |
.y(function(d) { return d.y; }) | |
.interpolate("linear"); | |
if(first_time){ | |
var svg = d3.select(config.dom_element).append("svg") | |
.style("width", config.width + config.margin.left + config.margin.right) | |
.style("height", config.height + config.margin.top + config.margin.bottom); | |
//The line SVG Path we draw | |
var lineGraph = svg.append("path") | |
.attr("d", lineFunction(lineData)) | |
.style("fill",config.fill_color) | |
.style("stroke",config.stroke_color) | |
.style("stroke-width",config.stroke_width) | |
$("#x1").val(config.x1); | |
$("#y1").val(config.y1); | |
$("#x2").val(config.x2); | |
$("#y2").val(config.y2); | |
$("#x3").val(config.x3); | |
$("#y3").val(config.y3); | |
$("#width").val(config.width); | |
$("#height").val(config.height); | |
$("#strokeColor").val(config.stroke_color); | |
$("#strokeWidth").val(config.stroke_width); | |
$("#fillColor").val(config.fill_color); | |
}else{ | |
var dom_element = d3.select("svg") | |
.style("width", config.width + config.margin.left + config.margin.right) | |
.style("height", config.height + config.margin.top + config.margin.bottom); | |
dom_element.select("path") | |
.attr("d", lineFunction(lineData)) | |
.style("fill",config.fill_color) | |
.style("stroke",config.stroke_color) | |
.style("stroke-width",config.stroke_width) | |
} | |
} |
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body{ | |
width: 700px; | |
} | |
input { | |
width:50px; | |
} | |
.formElement{ | |
padding:8px; | |
} | |
span{ | |
display: inline-block; | |
width: 150px; | |
} | |
svg{ | |
border: 1px solid black; | |
} |
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