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I changed to an options object, and found a cleaner way to merge defaults and passed options. I renamed and reorganized the demo files.
This commit is contained in:
Joshua Seigler 2016-06-28 21:23:56 -04:00
parent c6a1a48910
commit 481dd6747b
6 changed files with 317 additions and 228 deletions
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demo.php Normal file
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<!DOCTYPE html>
<html lang="en-US">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, minimum-scale=1.0, maximum-scale=1.0">
<title>SVGChartBuilder demo</title>
<style>
main {
-webkit-columns: 800px 2;
-moz-columns: 800px 2;
columns: 800px 2;
}
section {
display: inline-block;
width: auto;
max-width: 800px;
padding: 10px;
vertical-align: top;
}
</style>
</head>
<body>
<main>
<section>
<h2>Poloniex Dash/BTC Price</h2>
<img src="poloniex-dash-btc.php" alt="Poloniex Dash/BTC price">
</section>
<section>
<h2>Fake Stock Market Data</h2>
<?php
ini_set('display_errors', 1);
spl_autoload_register(function ($class_name) {
include $class_name . ".php";
});
// fake up some stock market data
$chartData = [];
$offset = 100 * (rand()/getRandMax())**4;
$scale = 100 * (rand()/getRandMax())**2;
$volatility = 0.5 * (rand()/getRandMax())**3;
for ($n = 0, $current = $offset + 0.5 * $scale; $n < 96; $n++) {
$current -= $offset;
$current *= 1 + $volatility * (rand()/getRandMax() - 0.5);
$current += $offset;
$chartData[$n] = $current;
}
$stockChart = new SVGChartBuilder($chartData, [
"width"=>500,
"height"=>150,
"fontSize"=>10
]);
print $stockChart->render();
?>
</section>
<section>
<h2>Monotonically Smoothed Chart</h2>
<?php
$chartData = [];
$start = 100 * (rand()/getRandMax())**3;
$volatility = rand()/getRandMax() + 0.01;
$velocity = (rand()/getRandMax() - 0.5);
$acceleration = 0.1 * (rand()/getRandMax())**2;
for ($n = 0, $current = $start; $n < 12; $n++) {
$velocity *= 0.5;
$velocity += $acceleration * 2 * (rand()/getRandMax() - 0.5);
$current += $velocity;
$chartData[$n] = $current;
}
$tempChart = new SVGChartBuilder($chartData, [
"width"=>700,
"height"=>400,
"lineColor"=>"#D00",
"labelColor"=>"#777",
"smoothed"=>true
]);
print $tempChart->render();
?>
</section>
</main>
</body>
</html>