| <html> |
| <head> |
| <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> |
| <title>transform (with strategy)</title> |
| <link rel="stylesheet" href="../../../../../../../../doc/src/boostbook.css" type="text/css"> |
| <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> |
| <link rel="home" href="../../../../index.html" title="Chapter 1. Geometry 1.0"> |
| <link rel="up" href="../transform.html" title="transform"> |
| <link rel="prev" href="../transform.html" title="transform"> |
| <link rel="next" href="transform_2.html" title="transform"> |
| </head> |
| <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> |
| <table cellpadding="2" width="100%"><tr> |
| <td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../../boost.png"></td> |
| <td align="center"><a href="../../../../../../../../index.html">Home</a></td> |
| <td align="center"><a href="../../../../../../../../libs/libraries.htm">Libraries</a></td> |
| <td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> |
| <td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> |
| <td align="center"><a href="../../../../../../../../more/index.htm">More</a></td> |
| </tr></table> |
| <hr> |
| <div class="spirit-nav"> |
| <a accesskey="p" href="../transform.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../transform.html"><img src="../../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="transform_2.html"><img src="../../../../../../../../doc/src/images/next.png" alt="Next"></a> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="geometry.reference.algorithms.transform.transform_3_with_strategy"></a><a class="link" href="transform_3_with_strategy.html" title="transform (with strategy)">transform |
| (with strategy)</a> |
| </h5></div></div></div> |
| <p> |
| <a class="indexterm" name="id894932"></a> |
| Transforms from one geometry to another geometry using the specified |
| strategy. |
| </p> |
| <a name="geometry.reference.algorithms.transform.transform_3_with_strategy.synopsis"></a><h6> |
| <a name="geometry.reference.algorithms.transform.transform_3_with_strategy.synopsis-heading"></a> |
| <a class="link" href="transform_3_with_strategy.html#geometry.reference.algorithms.transform.transform_3_with_strategy.synopsis">Synopsis</a> |
| </h6> |
| <p> |
| |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Geometry1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Geometry2</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Strategy</span><span class="special">></span> |
| <span class="keyword">bool</span> <span class="identifier">transform</span><span class="special">(</span><span class="identifier">Geometry1</span> <span class="keyword">const</span> <span class="special">&</span> <span class="identifier">geometry1</span><span class="special">,</span> <span class="identifier">Geometry2</span> <span class="special">&</span> <span class="identifier">geometry2</span><span class="special">,</span> <span class="identifier">Strategy</span> <span class="keyword">const</span> <span class="special">&</span> <span class="identifier">strategy</span><span class="special">)</span></pre> |
| <p> |
| </p> |
| <a name="geometry.reference.algorithms.transform.transform_3_with_strategy.parameters"></a><h6> |
| <a name="geometry.reference.algorithms.transform.transform_3_with_strategy.parameters-heading"></a> |
| <a class="link" href="transform_3_with_strategy.html#geometry.reference.algorithms.transform.transform_3_with_strategy.parameters">Parameters</a> |
| </h6> |
| <div class="informaltable"><table class="table"> |
| <colgroup> |
| <col> |
| <col> |
| <col> |
| <col> |
| </colgroup> |
| <thead><tr> |
| <th> |
| <p> |
| Type |
| </p> |
| </th> |
| <th> |
| <p> |
| Concept |
| </p> |
| </th> |
| <th> |
| <p> |
| Name |
| </p> |
| </th> |
| <th> |
| <p> |
| Description |
| </p> |
| </th> |
| </tr></thead> |
| <tbody> |
| <tr> |
| <td> |
| <p> |
| Geometry1 const & |
| </p> |
| </td> |
| <td> |
| <p> |
| Any type fulfilling a Geometry Concept |
| </p> |
| </td> |
| <td> |
| <p> |
| geometry1 |
| </p> |
| </td> |
| <td> |
| <p> |
| A model of the specified concept |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| Geometry2 & |
| </p> |
| </td> |
| <td> |
| <p> |
| Any type fulfilling a Geometry Concept |
| </p> |
| </td> |
| <td> |
| <p> |
| geometry2 |
| </p> |
| </td> |
| <td> |
| <p> |
| A model of the specified concept |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| Strategy const & |
| </p> |
| </td> |
| <td> |
| <p> |
| strategy |
| </p> |
| </td> |
| <td> |
| <p> |
| strategy |
| </p> |
| </td> |
| <td> |
| <p> |
| The strategy to be used for transformation |
| </p> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <a name="geometry.reference.algorithms.transform.transform_3_with_strategy.returns"></a><h6> |
| <a name="geometry.reference.algorithms.transform.transform_3_with_strategy.returns-heading"></a> |
| <a class="link" href="transform_3_with_strategy.html#geometry.reference.algorithms.transform.transform_3_with_strategy.returns">Returns</a> |
| </h6> |
| <p> |
| True if the transformation could be done |
| </p> |
| <a name="geometry.reference.algorithms.transform.transform_3_with_strategy.header"></a><h6> |
| <a name="geometry.reference.algorithms.transform.transform_3_with_strategy.header-heading"></a> |
| <a class="link" href="transform_3_with_strategy.html#geometry.reference.algorithms.transform.transform_3_with_strategy.header">Header</a> |
| </h6> |
| <p> |
| Either |
| </p> |
| <p> |
| <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code> |
| </p> |
| <p> |
| Or |
| </p> |
| <p> |
| <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">algorithms</span><span class="special">/</span><span class="identifier">transform</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code> |
| </p> |
| <a name="geometry.reference.algorithms.transform.transform_3_with_strategy.complexity"></a><h6> |
| <a name="geometry.reference.algorithms.transform.transform_3_with_strategy.complexity-heading"></a> |
| <a class="link" href="transform_3_with_strategy.html#geometry.reference.algorithms.transform.transform_3_with_strategy.complexity">Complexity</a> |
| </h6> |
| <p> |
| Linear |
| </p> |
| <a name="geometry.reference.algorithms.transform.transform_3_with_strategy.example"></a><h6> |
| <a name="geometry.reference.algorithms.transform.transform_3_with_strategy.example-heading"></a> |
| <a class="link" href="transform_3_with_strategy.html#geometry.reference.algorithms.transform.transform_3_with_strategy.example">Example</a> |
| </h6> |
| <p> |
| Shows how points can be scaled, translated or rotated |
| </p> |
| <p> |
| |
| </p> |
| <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">iostream</span><span class="special">></span> |
| <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| |
| |
| <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> |
| <span class="special">{</span> |
| <span class="keyword">namespace</span> <span class="identifier">trans</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">strategy</span><span class="special">::</span><span class="identifier">transform</span><span class="special">;</span> |
| <span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">dsv</span><span class="special">;</span> |
| |
| <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">point</span><span class="special"><</span><span class="keyword">double</span><span class="special">,</span> <span class="number">2</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">cs</span><span class="special">::</span><span class="identifier">cartesian</span><span class="special">></span> <span class="identifier">point_type</span><span class="special">;</span> |
| |
| <span class="identifier">point_type</span> <span class="identifier">p1</span><span class="special">(</span><span class="number">1.0</span><span class="special">,</span> <span class="number">1.0</span><span class="special">);</span> |
| |
| <span class="comment">// Translate over (1.5, 1.5)</span> |
| <span class="identifier">point_type</span> <span class="identifier">p2</span><span class="special">;</span> |
| <span class="identifier">trans</span><span class="special">::</span><span class="identifier">translate_transformer</span><span class="special"><</span><span class="identifier">point_type</span><span class="special">,</span> <span class="identifier">point_type</span><span class="special">></span> <span class="identifier">translate</span><span class="special">(</span><span class="number">1.5</span><span class="special">,</span> <span class="number">1.5</span><span class="special">);</span> |
| <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">transform</span><span class="special">(</span><span class="identifier">p1</span><span class="special">,</span> <span class="identifier">p2</span><span class="special">,</span> <span class="identifier">translate</span><span class="special">);</span> |
| |
| <span class="comment">// Scale with factor 3.0</span> |
| <span class="identifier">point_type</span> <span class="identifier">p3</span><span class="special">;</span> |
| <span class="identifier">trans</span><span class="special">::</span><span class="identifier">scale_transformer</span><span class="special"><</span><span class="identifier">point_type</span><span class="special">,</span> <span class="identifier">point_type</span><span class="special">></span> <span class="identifier">scale</span><span class="special">(</span><span class="number">3.0</span><span class="special">);</span> |
| <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">transform</span><span class="special">(</span><span class="identifier">p1</span><span class="special">,</span> <span class="identifier">p3</span><span class="special">,</span> <span class="identifier">scale</span><span class="special">);</span> |
| |
| <span class="comment">// Rotate with respect to the origin (0,0) over 90 degrees (clockwise)</span> |
| <span class="identifier">point_type</span> <span class="identifier">p4</span><span class="special">;</span> |
| <span class="identifier">trans</span><span class="special">::</span><span class="identifier">rotate_transformer</span><span class="special"><</span><span class="identifier">point_type</span><span class="special">,</span> <span class="identifier">point_type</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">degree</span><span class="special">></span> <span class="identifier">rotate</span><span class="special">(</span><span class="number">90.0</span><span class="special">);</span> |
| <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">transform</span><span class="special">(</span><span class="identifier">p1</span><span class="special">,</span> <span class="identifier">p4</span><span class="special">,</span> <span class="identifier">rotate</span><span class="special">);</span> |
| |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> |
| <span class="special"><<</span> <span class="string">"p1: "</span> <span class="special"><<</span> <span class="identifier">dsv</span><span class="special">(</span><span class="identifier">p1</span><span class="special">)</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span> |
| <span class="special"><<</span> <span class="string">"p2: "</span> <span class="special"><<</span> <span class="identifier">dsv</span><span class="special">(</span><span class="identifier">p2</span><span class="special">)</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span> |
| <span class="special"><<</span> <span class="string">"p3: "</span> <span class="special"><<</span> <span class="identifier">dsv</span><span class="special">(</span><span class="identifier">p3</span><span class="special">)</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span> |
| <span class="special"><<</span> <span class="string">"p4: "</span> <span class="special"><<</span> <span class="identifier">dsv</span><span class="special">(</span><span class="identifier">p4</span><span class="special">)</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> |
| |
| <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| </pre> |
| <p> |
| </p> |
| <p> |
| Output: |
| </p> |
| <pre class="programlisting">p1: (1, 1) |
| p2: (2.5, 2.5) |
| p3: (3, 3) |
| p4: (1, -1) |
| </pre> |
| </div> |
| <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> |
| <td align="left"></td> |
| <td align="right"><div class="copyright-footer">Copyright © 2011 Barend Gehrels, Bruno Lalande, Mateusz Loskot<p> |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) |
| </p> |
| </div></td> |
| </tr></table> |
| <hr> |
| <div class="spirit-nav"> |
| <a accesskey="p" href="../transform.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../transform.html"><img src="../../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="transform_2.html"><img src="../../../../../../../../doc/src/images/next.png" alt="Next"></a> |
| </div> |
| </body> |
| </html> |