module-Interpolations.html 5.6 KB

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  5. <title>Interpolations - Three.js Docs</title>
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  11. <body>
  12. <h1 translate="no">Interpolations</h1>
  13. <section>
  14. <header>
  15. </header>
  16. <article>
  17. <div class="container-overview">
  18. <div class="description"><p>Interpolations contains spline and Bézier functions internally used by concrete curve classes.</p>
  19. <p>Bezier Curves formulas obtained from: https://en.wikipedia.org/wiki/B%C3%A9zier_curve</p></div>
  20. </div>
  21. <h2 class="subsection-title">Methods</h2>
  22. <h3 class="name name-method" id="~CatmullRom" translate="no">.<a href="#~CatmullRom">CatmullRom</a><span class="signature">( t : <span class="param-type">number</span>, p0 : <span class="param-type">number</span>, p1 : <span class="param-type">number</span>, p2 : <span class="param-type">number</span>, p3 : <span class="param-type">number</span> )</span><span class="type-signature"> : number</span> <span class="type-signature">(inner) </span></h3>
  23. <div class="method">
  24. <div class="description">
  25. <p>Computes a point on a Catmull-Rom spline.</p>
  26. </div>
  27. <table class="params">
  28. <tbody>
  29. <tr>
  30. <td class="name"><code>t</code></td>
  31. <td class="description last"><p>The interpolation factor.</p></td>
  32. </tr>
  33. <tr>
  34. <td class="name"><code>p0</code></td>
  35. <td class="description last"><p>The first control point.</p></td>
  36. </tr>
  37. <tr>
  38. <td class="name"><code>p1</code></td>
  39. <td class="description last"><p>The second control point.</p></td>
  40. </tr>
  41. <tr>
  42. <td class="name"><code>p2</code></td>
  43. <td class="description last"><p>The third control point.</p></td>
  44. </tr>
  45. <tr>
  46. <td class="name"><code>p3</code></td>
  47. <td class="description last"><p>The fourth control point.</p></td>
  48. </tr>
  49. </tbody>
  50. </table>
  51. <dl class="details">
  52. <dt class="tag-returns"><strong>Returns:</strong> The calculated point on a Catmull-Rom spline.</dt>
  53. </dl>
  54. </div>
  55. <h3 class="name name-method" id="~CubicBezier" translate="no">.<a href="#~CubicBezier">CubicBezier</a><span class="signature">( t : <span class="param-type">number</span>, p0 : <span class="param-type">number</span>, p1 : <span class="param-type">number</span>, p2 : <span class="param-type">number</span>, p3 : <span class="param-type">number</span> )</span><span class="type-signature"> : number</span> <span class="type-signature">(inner) </span></h3>
  56. <div class="method">
  57. <div class="description">
  58. <p>Computes a point on a Cubic Bezier curve.</p>
  59. </div>
  60. <table class="params">
  61. <tbody>
  62. <tr>
  63. <td class="name"><code>t</code></td>
  64. <td class="description last"><p>The interpolation factor.</p></td>
  65. </tr>
  66. <tr>
  67. <td class="name"><code>p0</code></td>
  68. <td class="description last"><p>The first control point.</p></td>
  69. </tr>
  70. <tr>
  71. <td class="name"><code>p1</code></td>
  72. <td class="description last"><p>The second control point.</p></td>
  73. </tr>
  74. <tr>
  75. <td class="name"><code>p2</code></td>
  76. <td class="description last"><p>The third control point.</p></td>
  77. </tr>
  78. <tr>
  79. <td class="name"><code>p3</code></td>
  80. <td class="description last"><p>The fourth control point.</p></td>
  81. </tr>
  82. </tbody>
  83. </table>
  84. <dl class="details">
  85. <dt class="tag-returns"><strong>Returns:</strong> The calculated point on a Cubic Bezier curve.</dt>
  86. </dl>
  87. </div>
  88. <h3 class="name name-method" id="~QuadraticBezier" translate="no">.<a href="#~QuadraticBezier">QuadraticBezier</a><span class="signature">( t : <span class="param-type">number</span>, p0 : <span class="param-type">number</span>, p1 : <span class="param-type">number</span>, p2 : <span class="param-type">number</span> )</span><span class="type-signature"> : number</span> <span class="type-signature">(inner) </span></h3>
  89. <div class="method">
  90. <div class="description">
  91. <p>Computes a point on a Quadratic Bezier curve.</p>
  92. </div>
  93. <table class="params">
  94. <tbody>
  95. <tr>
  96. <td class="name"><code>t</code></td>
  97. <td class="description last"><p>The interpolation factor.</p></td>
  98. </tr>
  99. <tr>
  100. <td class="name"><code>p0</code></td>
  101. <td class="description last"><p>The first control point.</p></td>
  102. </tr>
  103. <tr>
  104. <td class="name"><code>p1</code></td>
  105. <td class="description last"><p>The second control point.</p></td>
  106. </tr>
  107. <tr>
  108. <td class="name"><code>p2</code></td>
  109. <td class="description last"><p>The third control point.</p></td>
  110. </tr>
  111. </tbody>
  112. </table>
  113. <dl class="details">
  114. <dt class="tag-returns"><strong>Returns:</strong> The calculated point on a Quadratic Bezier curve.</dt>
  115. </dl>
  116. </div>
  117. <h2 class="subsection-title">Source</h2>
  118. <p>
  119. <a href="https://github.com/mrdoob/three.js/blob/master/src/extras/core/Interpolations.js" target="_blank" rel="noopener" translate="no">src/extras/core/Interpolations.js</a>
  120. </p>
  121. </article>
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