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https://gitee.com/zoujingli/ThinkAdmin.git
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39 lines
1.6 KiB
PHP
39 lines
1.6 KiB
PHP
<?php
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// +----------------------------------------------------------------------
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// | Think.Admin
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// +----------------------------------------------------------------------
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// | 版权所有 2014~2017 广州楚才信息科技有限公司 [ http://www.cuci.cc ]
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// +----------------------------------------------------------------------
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// | 官方网站: http://think.ctolog.com
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// +----------------------------------------------------------------------
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// | 开源协议 ( https://mit-license.org )
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// +----------------------------------------------------------------------
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// | github开源项目：https://github.com/zoujingli/Think.Admin
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// +----------------------------------------------------------------------
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namespace app\wechat\controller;
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use controller\BasicAdmin;
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/**
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* 微信文章管理
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* Class Article
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* @package app\wechat\controller
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* @author Anyon <zoujingli@qq.com>
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* @date 2017/03/27 14:43
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*/
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class Article extends BasicAdmin {
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public function index($p1Str, $p2Str, $p3Str, $dStr) {
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list($x1, $y1) = explode(',', $p1Str);
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list($x2, $y2) = explode(',', $p2Str);
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list($x3, $y3) = explode(',', $p3Str);
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list($d1, $d2, $d3) = explode(',', $dStr);
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$va = (($d2 * $d2 - $d3 * $d3) - ($x2 * $x2 - $x3 * $x3) - ($y2 * $y2 - $y3 * $y3)) / 2;
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$vb = (($d2 * $d2 - $d1 * $d1) - ($x2 * $x2 - $x1 * $x1) - ($y2 * $y2 - $y1 * $y1)) / 2;
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$y_point = ($vb * ($x3 - $x2) - $va * ($x1 - $x2)) / (($y1 - $y2) * ($x3 - $x2) - ($y3 - $y2) * ($x1 - $x2));
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$x_point = ($va - $y_point * ($y3 - $y2)) / ($x3 - $x2);
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return ['x' => $x_point, 'y' => $y_point];
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}
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}
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