Built with blockbuilder.org
Created
October 5, 2016 01:43
-
-
Save walkerjeffd/f106208f55304c0b18d7bbe68a18a591 to your computer and use it in GitHub Desktop.
fresh block
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
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; } | |
.axis { | |
font: 10px sans-serif; | |
} | |
.axis path, | |
.axis line { | |
fill: none; | |
stroke: #000; | |
shape-rendering: crispEdges; | |
} | |
.axis--x path { | |
display: none; | |
} | |
.line { | |
fill: none; | |
stroke: steelblue; | |
stroke-width: 1.5px; | |
} | |
</style> | |
</head> | |
<body> | |
<script> | |
var margin = {top: 20, right: 20, bottom: 30, left: 50}, | |
width = 960 - margin.left - margin.right, | |
height = 500 - margin.top - margin.bottom; | |
function compute(params) { | |
var Zc = params.Zc, // control depth (cm) | |
Zw = params.Zw, // weir depth (cm) | |
W = params.W, // mean cell width = area / flow path length (km) | |
a = params.a, // empirical | |
b = params.b, // empirical | |
pump_capacity = params.pump_capacity; | |
var Z_arr = d3.range(0, 100, 1); | |
var Q_arr = Z_arr.map(function (Z) { | |
var Q = W * a * Math.pow((Z - Zw), b); | |
// console.log(Z, Q) | |
return Z < Zc && Z < Zw ? 0 : | |
Q > pump_capacity ? pump_capacity : Q; | |
}); | |
return d3.zip(Z_arr, Q_arr); | |
} | |
var data = compute({Zc: 40, Zw: 40, W: 1, a: 1, b: 1.5, pump_capacity: 100}); | |
var x = d3.scaleLinear() | |
.domain([0, 100]) | |
.range([0]); | |
var y = d3.scaleLinear() | |
.domain([0, 110]) | |
.range([height, 0]); | |
var line = d3.line() | |
.x(function(d) { return x(d[0]); }) | |
.y(function(d) { return y(d[1]); }); | |
var svg = d3.select("body").append("svg") | |
.attr("width", width + margin.left + margin.right) | |
.attr("height", height + margin.top + margin.bottom) | |
.append("g") | |
.attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
x.domain(d3.extent(data, function(d) { return d[0]; })); | |
y.domain(d3.extent(data, function(d) { return d[1]; })); | |
svg.append("g") | |
.attr("class", "axis axis--x") | |
.attr("transform", "translate(0," + height + ")") | |
.call(d3.axisBottom(x)); | |
svg.append("g") | |
.attr("class", "axis axis--y") | |
.call(d3.axisLeft(y)) | |
.append("text") | |
.attr("class", "axis-title") | |
.attr("transform", "rotate(-90)") | |
.attr("y", 6) | |
.attr("dy", ".71em") | |
.style("text-anchor", "end") | |
.text("Q"); | |
svg.append("path") | |
.datum(data) | |
.attr("class", "line") | |
.attr("d", line); | |
</script> | |
</body> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment