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<li class="navelem"><a class="el" href="namespacemingfx.html">mingfx</a></li><li class="navelem"><a class="el" href="classmingfx_1_1_point2.html">Point2</a></li> </ul>
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<div class="summary">
<a href="#pub-methods">Public Member Functions</a> |
<a href="#pub-static-methods">Static Public Member Functions</a> |
<a href="classmingfx_1_1_point2-members.html">List of all members</a> </div>
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<div class="title">mingfx::Point2 Class Reference</div> </div>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>A 2D Point with floating point coordinates, used for storing 2D texture coordinates, screen-space graphics, and mouse input. </p>
<p class="definition">Definition at line <a class="el" href="point2_8h_source.html#l00028">28</a> of file <a class="el" href="point2_8h_source.html">point2.h</a>.</p>
</div>
<p><code>#include <<a class="el" href="point2_8h_source.html">point2.h</a>></code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a2e5869d810b52be4ba43c8a4f4e117a1"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classmingfx_1_1_point2.html#a2e5869d810b52be4ba43c8a4f4e117a1">Point2</a> ()</td></tr>
<tr class="memdesc:a2e5869d810b52be4ba43c8a4f4e117a1"><td class="mdescLeft"> </td><td class="mdescRight">Default point at the origin. <a href="classmingfx_1_1_point2.html#a2e5869d810b52be4ba43c8a4f4e117a1">More...</a><br /></td></tr>
<tr class="separator:a2e5869d810b52be4ba43c8a4f4e117a1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a716fcff21456f29561ec27118a646483"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classmingfx_1_1_point2.html#a716fcff21456f29561ec27118a646483">Point2</a> (float <a class="el" href="classmingfx_1_1_point2.html#a92447f64ca82f67e855da0c42db12ffa">x</a>, float <a class="el" href="classmingfx_1_1_point2.html#a4f97a7a75276a147ac06fc4dec810ec8">y</a>)</td></tr>
<tr class="memdesc:a716fcff21456f29561ec27118a646483"><td class="mdescLeft"> </td><td class="mdescRight">Constructs a point given (x,y,1), where the 1 comes from the use of homogeneous coordinates in computer graphics. <a href="classmingfx_1_1_point2.html#a716fcff21456f29561ec27118a646483">More...</a><br /></td></tr>
<tr class="separator:a716fcff21456f29561ec27118a646483"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4ba487a2038ebc78b461b66f1987053f"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classmingfx_1_1_point2.html#a4ba487a2038ebc78b461b66f1987053f">Point2</a> (float *p)</td></tr>
<tr class="memdesc:a4ba487a2038ebc78b461b66f1987053f"><td class="mdescLeft"> </td><td class="mdescRight">Constructs a point given a pointer to x,y data. <a href="classmingfx_1_1_point2.html#a4ba487a2038ebc78b461b66f1987053f">More...</a><br /></td></tr>
<tr class="separator:a4ba487a2038ebc78b461b66f1987053f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a97464af92444984e275dca38a3f4eef0"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classmingfx_1_1_point2.html#a97464af92444984e275dca38a3f4eef0">Point2</a> (const <a class="el" href="classmingfx_1_1_point2.html">Point2</a> &p)</td></tr>
<tr class="memdesc:a97464af92444984e275dca38a3f4eef0"><td class="mdescLeft"> </td><td class="mdescRight">Copy constructor for point. <a href="classmingfx_1_1_point2.html#a97464af92444984e275dca38a3f4eef0">More...</a><br /></td></tr>
<tr class="separator:a97464af92444984e275dca38a3f4eef0"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7e5b2dcd7e079bdd00354e7ccf9c5c2a"><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classmingfx_1_1_point2.html#a7e5b2dcd7e079bdd00354e7ccf9c5c2a">~Point2</a> ()</td></tr>
<tr class="memdesc:a7e5b2dcd7e079bdd00354e7ccf9c5c2a"><td class="mdescLeft"> </td><td class="mdescRight">Point destructor. <a href="classmingfx_1_1_point2.html#a7e5b2dcd7e079bdd00354e7ccf9c5c2a">More...</a><br /></td></tr>
<tr class="separator:a7e5b2dcd7e079bdd00354e7ccf9c5c2a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae8729260293b993bbf3cb31c0a33edfa"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classmingfx_1_1_point2.html#ae8729260293b993bbf3cb31c0a33edfa">operator==</a> (const <a class="el" href="classmingfx_1_1_point2.html">Point2</a> &p) const</td></tr>
<tr class="memdesc:ae8729260293b993bbf3cb31c0a33edfa"><td class="mdescLeft"> </td><td class="mdescRight">Check for "equality", taking floating point imprecision into account. <a href="classmingfx_1_1_point2.html#ae8729260293b993bbf3cb31c0a33edfa">More...</a><br /></td></tr>
<tr class="separator:ae8729260293b993bbf3cb31c0a33edfa"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a5b99fcf93a0c6d2b247290f5564f8a84"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classmingfx_1_1_point2.html#a5b99fcf93a0c6d2b247290f5564f8a84">operator!=</a> (const <a class="el" href="classmingfx_1_1_point2.html">Point2</a> &p) const</td></tr>
<tr class="memdesc:a5b99fcf93a0c6d2b247290f5564f8a84"><td class="mdescLeft"> </td><td class="mdescRight">Check for "inequality", taking floating point imprecision into account. <a href="classmingfx_1_1_point2.html#a5b99fcf93a0c6d2b247290f5564f8a84">More...</a><br /></td></tr>
<tr class="separator:a5b99fcf93a0c6d2b247290f5564f8a84"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:afc68153cce7dc528e95cf5ad81c63902"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classmingfx_1_1_point2.html">Point2</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classmingfx_1_1_point2.html#afc68153cce7dc528e95cf5ad81c63902">operator=</a> (const <a class="el" href="classmingfx_1_1_point2.html">Point2</a> &p)</td></tr>
<tr class="memdesc:afc68153cce7dc528e95cf5ad81c63902"><td class="mdescLeft"> </td><td class="mdescRight">Assignment operator. <a href="classmingfx_1_1_point2.html#afc68153cce7dc528e95cf5ad81c63902">More...</a><br /></td></tr>
<tr class="separator:afc68153cce7dc528e95cf5ad81c63902"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af4c0cc334dfbfe8e8068156e6da16542"><td class="memItemLeft" align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="classmingfx_1_1_point2.html#af4c0cc334dfbfe8e8068156e6da16542">operator[]</a> (const int i) const</td></tr>
<tr class="memdesc:af4c0cc334dfbfe8e8068156e6da16542"><td class="mdescLeft"> </td><td class="mdescRight">Read only access to the ith coordinate of the point. <a href="classmingfx_1_1_point2.html#af4c0cc334dfbfe8e8068156e6da16542">More...</a><br /></td></tr>
<tr class="separator:af4c0cc334dfbfe8e8068156e6da16542"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a50f09df619fd226e6dc3ccff452abab3"><td class="memItemLeft" align="right" valign="top">float & </td><td class="memItemRight" valign="bottom"><a class="el" href="classmingfx_1_1_point2.html#a50f09df619fd226e6dc3ccff452abab3">operator[]</a> (const int i)</td></tr>
<tr class="memdesc:a50f09df619fd226e6dc3ccff452abab3"><td class="mdescLeft"> </td><td class="mdescRight">Returns a reference to the ith coordinate of the point. Use this accessor if you wish to set the coordinate rather than just request its value. Example: <a href="classmingfx_1_1_point2.html#a50f09df619fd226e6dc3ccff452abab3">More...</a><br /></td></tr>
<tr class="separator:a50f09df619fd226e6dc3ccff452abab3"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a92447f64ca82f67e855da0c42db12ffa"><td class="memItemLeft" align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="classmingfx_1_1_point2.html#a92447f64ca82f67e855da0c42db12ffa">x</a> () const</td></tr>
<tr class="memdesc:a92447f64ca82f67e855da0c42db12ffa"><td class="mdescLeft"> </td><td class="mdescRight">Read only access to the x coordinate. Can also use my_point[0]. Use the my_point[0] = 1.0; form if you need to set the value. <a href="classmingfx_1_1_point2.html#a92447f64ca82f67e855da0c42db12ffa">More...</a><br /></td></tr>
<tr class="separator:a92447f64ca82f67e855da0c42db12ffa"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4f97a7a75276a147ac06fc4dec810ec8"><td class="memItemLeft" align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="classmingfx_1_1_point2.html#a4f97a7a75276a147ac06fc4dec810ec8">y</a> () const</td></tr>
<tr class="memdesc:a4f97a7a75276a147ac06fc4dec810ec8"><td class="mdescLeft"> </td><td class="mdescRight">Read only access to the y coordinate. Can also use my_point[1]. Use the my_point[1] = 1.0; form if you need to set the value. <a href="classmingfx_1_1_point2.html#a4f97a7a75276a147ac06fc4dec810ec8">More...</a><br /></td></tr>
<tr class="separator:a4f97a7a75276a147ac06fc4dec810ec8"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab00e35eccdc4b7deae8172f5954a86e8"><td class="memItemLeft" align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="classmingfx_1_1_point2.html#ab00e35eccdc4b7deae8172f5954a86e8">w</a> () const</td></tr>
<tr class="memdesc:ab00e35eccdc4b7deae8172f5954a86e8"><td class="mdescLeft"> </td><td class="mdescRight">In homogeneous coordinates, the w coordinate for all points is 1.0. <a href="classmingfx_1_1_point2.html#ab00e35eccdc4b7deae8172f5954a86e8">More...</a><br /></td></tr>
<tr class="separator:ab00e35eccdc4b7deae8172f5954a86e8"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a027b2412f1c36242ccb06cf37c7e29bc"><td class="memItemLeft" align="right" valign="top">const float * </td><td class="memItemRight" valign="bottom"><a class="el" href="classmingfx_1_1_point2.html#a027b2412f1c36242ccb06cf37c7e29bc">value_ptr</a> () const</td></tr>
<tr class="memdesc:a027b2412f1c36242ccb06cf37c7e29bc"><td class="mdescLeft"> </td><td class="mdescRight">Returns a const pointer to the raw data array. <a href="classmingfx_1_1_point2.html#a027b2412f1c36242ccb06cf37c7e29bc">More...</a><br /></td></tr>
<tr class="separator:a027b2412f1c36242ccb06cf37c7e29bc"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a900567ad5e3c0e6de217b52167c49fd6"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classmingfx_1_1_point2.html">Point2</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classmingfx_1_1_point2.html#a900567ad5e3c0e6de217b52167c49fd6">Lerp</a> (const <a class="el" href="classmingfx_1_1_point2.html">Point2</a> &b, float alpha) const</td></tr>
<tr class="memdesc:a900567ad5e3c0e6de217b52167c49fd6"><td class="mdescLeft"> </td><td class="mdescRight">Linear interpolation between this point and another. Alpha=0.0 returns this point, and alpha=1.0 returns the other point, other values blend between the two. <a href="classmingfx_1_1_point2.html#a900567ad5e3c0e6de217b52167c49fd6">More...</a><br /></td></tr>
<tr class="separator:a900567ad5e3c0e6de217b52167c49fd6"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr class="memitem:a24d7a5121fceba01b46f3ba0f6525630"><td class="memItemLeft" align="right" valign="top">static const <a class="el" href="classmingfx_1_1_point2.html">Point2</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classmingfx_1_1_point2.html#a24d7a5121fceba01b46f3ba0f6525630">Origin</a> ()</td></tr>
<tr class="memdesc:a24d7a5121fceba01b46f3ba0f6525630"><td class="mdescLeft"> </td><td class="mdescRight">(0,0) - a shortcut for a special point that is frequently needed <a href="classmingfx_1_1_point2.html#a24d7a5121fceba01b46f3ba0f6525630">More...</a><br /></td></tr>
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<tr class="memitem:a60a2b348deab631b51caca3eb715461f"><td class="memItemLeft" align="right" valign="top">static const <a class="el" href="classmingfx_1_1_point2.html">Point2</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classmingfx_1_1_point2.html#a60a2b348deab631b51caca3eb715461f">Zero</a> ()</td></tr>
<tr class="memdesc:a60a2b348deab631b51caca3eb715461f"><td class="mdescLeft"> </td><td class="mdescRight">(0,0) - a shortcut for a special point that is frequently needed <a href="classmingfx_1_1_point2.html#a60a2b348deab631b51caca3eb715461f">More...</a><br /></td></tr>
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<tr class="memitem:a38149d8797bf7406fc34cab0ea5a3ac8"><td class="memItemLeft" align="right" valign="top">static const <a class="el" href="classmingfx_1_1_point2.html">Point2</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classmingfx_1_1_point2.html#a38149d8797bf7406fc34cab0ea5a3ac8">One</a> ()</td></tr>
<tr class="memdesc:a38149d8797bf7406fc34cab0ea5a3ac8"><td class="mdescLeft"> </td><td class="mdescRight">(1,1) - a shortcut for a special point that is frequently needed <a href="classmingfx_1_1_point2.html#a38149d8797bf7406fc34cab0ea5a3ac8">More...</a><br /></td></tr>
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<tr class="memitem:a680648ae01c549c48f7a3d5d75d8791e"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="classmingfx_1_1_point2.html">Point2</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classmingfx_1_1_point2.html#a680648ae01c549c48f7a3d5d75d8791e">Lerp</a> (const <a class="el" href="classmingfx_1_1_point2.html">Point2</a> &a, const <a class="el" href="classmingfx_1_1_point2.html">Point2</a> &b, float alpha)</td></tr>
<tr class="memdesc:a680648ae01c549c48f7a3d5d75d8791e"><td class="mdescLeft"> </td><td class="mdescRight">Linear interpolation between two points. Alpha=0.0 returns 'a' and alpha=1.0 returns 'b', other values blend between the two. <a href="classmingfx_1_1_point2.html#a680648ae01c549c48f7a3d5d75d8791e">More...</a><br /></td></tr>
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<h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a2e5869d810b52be4ba43c8a4f4e117a1">◆ </a></span>Point2() <span class="overload">[1/4]</span></h2>
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<p>Default point at the origin. </p>
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<p>Constructs a point given (x,y,1), where the 1 comes from the use of homogeneous coordinates in computer graphics. </p>
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<p>Constructs a point given a pointer to x,y data. </p>
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<p>Copy constructor for point. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a7e5b2dcd7e079bdd00354e7ccf9c5c2a">◆ </a></span>~Point2()</h2>
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<td class="memname">virtual mingfx::Point2::~Point2 </td>
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<p>Point destructor. </p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a680648ae01c549c48f7a3d5d75d8791e">◆ </a></span>Lerp() <span class="overload">[1/2]</span></h2>
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<td class="memname">static <a class="el" href="classmingfx_1_1_point2.html">Point2</a> mingfx::Point2::Lerp </td>
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<p>Linear interpolation between two points. Alpha=0.0 returns 'a' and alpha=1.0 returns 'b', other values blend between the two. </p>
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<td class="memname"><a class="el" href="classmingfx_1_1_point2.html">Point2</a> mingfx::Point2::Lerp </td>
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<p>Linear interpolation between this point and another. Alpha=0.0 returns this point, and alpha=1.0 returns the other point, other values blend between the two. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a38149d8797bf7406fc34cab0ea5a3ac8">◆ </a></span>One()</h2>
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<td class="memname">static const <a class="el" href="classmingfx_1_1_point2.html">Point2</a>& mingfx::Point2::One </td>
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<p>(1,1) - a shortcut for a special point that is frequently needed </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a5b99fcf93a0c6d2b247290f5564f8a84">◆ </a></span>operator!=()</h2>
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<p>Check for "inequality", taking floating point imprecision into account. </p>
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<td class="memname"><a class="el" href="classmingfx_1_1_point2.html">Point2</a>& mingfx::Point2::operator= </td>
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<p>Assignment operator. </p>
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<td class="memname">bool mingfx::Point2::operator== </td>
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<p>Check for "equality", taking floating point imprecision into account. </p>
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<p>Returns a reference to the ith coordinate of the point. Use this accessor if you wish to set the coordinate rather than just request its value. Example: </p>
<div class="fragment"><div class="line"><a class="code" href="classmingfx_1_1_point2.html#a2e5869d810b52be4ba43c8a4f4e117a1">Point2</a> a;</div>
<div class="line">a[0] = 5.0; <span class="comment">// set the x-coordinate of the point</span></div>
<div class="ttc" id="aclassmingfx_1_1_point2_html_a2e5869d810b52be4ba43c8a4f4e117a1"><div class="ttname"><a href="classmingfx_1_1_point2.html#a2e5869d810b52be4ba43c8a4f4e117a1">mingfx::Point2::Point2</a></div><div class="ttdeci">Point2()</div><div class="ttdoc">Default point at the origin.</div></div>
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<p>Read only access to the ith coordinate of the point. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a24d7a5121fceba01b46f3ba0f6525630">◆ </a></span>Origin()</h2>
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<td class="memname">static const <a class="el" href="classmingfx_1_1_point2.html">Point2</a>& mingfx::Point2::Origin </td>
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<p>(0,0) - a shortcut for a special point that is frequently needed </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a027b2412f1c36242ccb06cf37c7e29bc">◆ </a></span>value_ptr()</h2>
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<td class="memname">const float* mingfx::Point2::value_ptr </td>
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<p>Returns a const pointer to the raw data array. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ab00e35eccdc4b7deae8172f5954a86e8">◆ </a></span>w()</h2>
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<p>In homogeneous coordinates, the w coordinate for all points is 1.0. </p>
<p class="definition">Definition at line <a class="el" href="point2_8h_source.html#l00076">76</a> of file <a class="el" href="point2_8h_source.html">point2.h</a>.</p>
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<p>Read only access to the x coordinate. Can also use my_point[0]. Use the my_point[0] = 1.0; form if you need to set the value. </p>
<p class="definition">Definition at line <a class="el" href="point2_8h_source.html#l00069">69</a> of file <a class="el" href="point2_8h_source.html">point2.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a4f97a7a75276a147ac06fc4dec810ec8">◆ </a></span>y()</h2>
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<p>Read only access to the y coordinate. Can also use my_point[1]. Use the my_point[1] = 1.0; form if you need to set the value. </p>
<p class="definition">Definition at line <a class="el" href="point2_8h_source.html#l00073">73</a> of file <a class="el" href="point2_8h_source.html">point2.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a60a2b348deab631b51caca3eb715461f">◆ </a></span>Zero()</h2>
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<td class="memname">static const <a class="el" href="classmingfx_1_1_point2.html">Point2</a>& mingfx::Point2::Zero </td>
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<p>(0,0) - a shortcut for a special point that is frequently needed </p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li>src/<a class="el" href="point2_8h_source.html">point2.h</a></li>
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