namespaceorb.html

应用方便的OrbMath数学运算库

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<p>
matBuildLookAtRH
<p>
Build a 4x4 view matrix in the right-handed system <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign=top><em>eye</em>&nbsp;</td><td>the eye pos </td></tr>
    <tr><td valign=top><em>at</em>&nbsp;</td><td>the at pos </td></tr>
    <tr><td valign=top><em>up</em>&nbsp;</td><td>the up direction </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>the view matrix</dd></dl>
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<a name="a7" doxytag="orb::matBuildPerspectiveLH"></a><p>
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          <td class="md" nowrap valign="top"> ORB_EXPORT <a class="el" href="structorb_1_1MATRIX44.html">MATRIX44</a> matBuildPerspectiveLH </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">float&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>nvp</em>, </td>
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          <td></td>
          <td class="md" nowrap>float&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>fvp</em>, </td>
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          <td></td>
          <td class="md" nowrap>float&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>fov</em>, </td>
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          <td></td>
          <td class="md" nowrap>float&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>aspect</em></td>
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          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"></td>
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<p>
matBuildPerspectiveLH
<p>
Build a 4x4 perspective matrix for left-handed coord system <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign=top><em>nvp</em>&nbsp;</td><td>the z of the near view-plane </td></tr>
    <tr><td valign=top><em>fvp</em>&nbsp;</td><td>the z of the far view-plane </td></tr>
    <tr><td valign=top><em>fov</em>&nbsp;</td><td>field of view, in radians. </td></tr>
    <tr><td valign=top><em>aspect</em>&nbsp;</td><td>Aspect ratio. </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>the perspective matrix</dd></dl>
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<a name="a8" doxytag="orb::matBuildPerspectiveRH"></a><p>
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          <td class="md" nowrap valign="top"> ORB_EXPORT <a class="el" href="structorb_1_1MATRIX44.html">MATRIX44</a> matBuildPerspectiveRH </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">float&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>nvp</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>float&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>fvp</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>float&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>fov</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>float&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>aspect</em></td>
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          <td></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"></td>
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<p>
matBuildPerspectiveRH
<p>
Build a 4x4 perspective matrix for right-handed coord system <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign=top><em>nvp</em>&nbsp;</td><td>the z of the near view-plane </td></tr>
    <tr><td valign=top><em>fvp</em>&nbsp;</td><td>the z of the far view-plane </td></tr>
    <tr><td valign=top><em>fov</em>&nbsp;</td><td>field of view, in radians. </td></tr>
    <tr><td valign=top><em>aspect</em>&nbsp;</td><td>Aspect ratio. </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>the perspective matrix</dd></dl>
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<a name="a9" doxytag="orb::matBuildRotationAxis"></a><p>
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          <td class="md" nowrap valign="top"> ORB_EXPORT <a class="el" href="structorb_1_1MATRIX33.html">MATRIX33</a> matBuildRotationAxis </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const <a class="el" href="structorb_1_1VECTOR3.html">VECTOR3</a> &amp;&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>axis</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>float&nbsp;</td>
          <td class="mdname" nowrap>&nbsp; <em>radian</em></td>
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          <td class="md">)&nbsp;</td>
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<p>
matBuildRotationAxis
<p>
Build a 3x3 matrix from rotation against a specified axis(a vector3). <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign=top><em>axis</em>&nbsp;</td><td>a vector3 specified the axis that the rotation against. The axis vector must be normalized before passed in. </td></tr>
    <tr><td valign=top><em>radian</em>&nbsp;</td><td>the angle to rotate in radian </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>the rotation matrix</dd></dl>
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<a name="a10" doxytag="orb::matBuildRotationX"></a><p>
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          <td class="md" nowrap valign="top"> ORB_EXPORT <a class="el" href="structorb_1_1MATRIX33.html">MATRIX33</a> matBuildRotationX </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">float&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp; <em>radian</em>          </td>
          <td class="md" valign="top">)&nbsp;</td>
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matBuildRotationX
<p>
Build a 3x3 matrix from rotation against X axis. <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign=top><em>radian</em>&nbsp;</td><td>the angle to rotate in radian </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>the rotation matrix</dd></dl>
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<a name="a11" doxytag="orb::matBuildRotationY"></a><p>
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          <td class="md" nowrap valign="top"> ORB_EXPORT <a class="el" href="structorb_1_1MATRIX33.html">MATRIX33</a> matBuildRotationY </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">float&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp; <em>radian</em>          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap></td>
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