mirror of
https://github.com/scratchfoundation/paper.js.git
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783 lines
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19 KiB
HTML
783 lines
No EOL
19 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>Curve</title>
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<base target="classFrame">
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<link rel="stylesheet" href="../resources/css/reference.css" type="text/css">
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<link rel="stylesheet" href="../resources/css/style.css" type="text/css">
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<link rel="stylesheet" href="../resources/css/paperscript.css" type="text/css">
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<link rel="stylesheet" href="../resources/css/codemirror.css" type="text/css">
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<script src="../resources/js/bootstrap.js" type="text/javascript"></script>
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<script src="../resources/js/paper.js" type="text/javascript"></script>
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<script src="../resources/js/codemirror.js" type="text/javascript"></script>
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<script src="../resources/js/reference.js" type="text/javascript"></script>
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</head>
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<body class="reference">
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<div class="reference-class">
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<h1>Curve</h1>
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<p>The Curve object represents...</p>
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</div>
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<!-- ============================== constructors ========================= -->
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<div class="reference-members"><h2>Constructors</h2>
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<div id="curve-segment1-segment2-member" class="member">
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<div id="curve-segment1-segment2-link" class="member-link">
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<a name="curve-segment1-segment2" href="#" onClick="return toggleMember('curve-segment1-segment2', false);"><tt><b>Curve</b>(segment1, segment2)</tt></a>
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</div>
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<div id="curve-segment1-segment2-description" class="member-description hidden">
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<div class="member-header">
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<div class="member-title">
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<div class="member-link">
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<a href="#" onClick="return toggleMember('curve-segment1-segment2', false);"><tt><b>Curve</b>(segment1, segment2)</tt></a>
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</div>
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</div>
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<div class="member-close"><input type="button" value="Close" onClick="toggleMember('curve-segment1-segment2', false);"></div>
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<div class="clear"></div>
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</div>
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<div class="member-text">
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<p>Creates a new curve object.</p>
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<ul><b>Parameters:</b>
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<li>
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<tt>segment1:</tt>
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<a href="../classes/Segment.html"><tt>Segment</tt></a>
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</li>
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<li>
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<tt>segment2:</tt>
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<a href="../classes/Segment.html"><tt>Segment</tt></a>
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</li>
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</ul>
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</div>
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</div>
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</div>
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</div>
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<div class="reference-members"><h2>Properties</h2>
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<div id="point1-member" class="member">
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<div id="point1-link" class="member-link">
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<a name="point1" href="#" onClick="return toggleMember('point1', false);"><tt><b>point1</b></tt></a>
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</div>
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<div id="point1-description" class="member-description hidden">
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<div class="member-header">
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<div class="member-title">
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<div class="member-link">
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<a href="#" onClick="return toggleMember('point1', false);"><tt><b>point1</b></tt></a>
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</div>
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</div>
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<div class="member-close"><input type="button" value="Close" onClick="toggleMember('point1', false);"></div>
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<div class="clear"></div>
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</div>
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<div class="member-text">
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<p>The first anchor point of the curve.</p>
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<ul><b>Type:</b>
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<li>
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<a href="../classes/Point.html"><tt>Point</tt></a>
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</li>
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</ul>
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</div>
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</div>
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</div>
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<div id="point2-member" class="member">
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<div id="point2-link" class="member-link">
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<a name="point2" href="#" onClick="return toggleMember('point2', false);"><tt><b>point2</b></tt></a>
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</div>
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<div id="point2-description" class="member-description hidden">
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<div class="member-header">
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<div class="member-title">
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<div class="member-link">
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<a href="#" onClick="return toggleMember('point2', false);"><tt><b>point2</b></tt></a>
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</div>
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</div>
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<div class="member-close"><input type="button" value="Close" onClick="toggleMember('point2', false);"></div>
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<div class="clear"></div>
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</div>
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<div class="member-text">
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<p>The second anchor point of the curve.</p>
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<ul><b>Type:</b>
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<li>
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<a href="../classes/Point.html"><tt>Point</tt></a>
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</li>
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</ul>
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</div>
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</div>
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</div>
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<div id="handle1-member" class="member">
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<div id="handle1-link" class="member-link">
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<a name="handle1" href="#" onClick="return toggleMember('handle1', false);"><tt><b>handle1</b></tt></a>
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</div>
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<div id="handle1-description" class="member-description hidden">
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<div class="member-header">
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<div class="member-title">
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<div class="member-link">
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<a href="#" onClick="return toggleMember('handle1', false);"><tt><b>handle1</b></tt></a>
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</div>
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</div>
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<div class="member-close"><input type="button" value="Close" onClick="toggleMember('handle1', false);"></div>
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<div class="clear"></div>
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</div>
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<div class="member-text">
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<p>The handle point that describes the tangent in the first anchor point.</p>
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<ul><b>Type:</b>
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<li>
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<a href="../classes/Point.html"><tt>Point</tt></a>
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</li>
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</ul>
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</div>
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</div>
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</div>
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<div id="handle2-member" class="member">
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<div id="handle2-link" class="member-link">
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<a name="handle2" href="#" onClick="return toggleMember('handle2', false);"><tt><b>handle2</b></tt></a>
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</div>
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<div id="handle2-description" class="member-description hidden">
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<div class="member-header">
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<div class="member-title">
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<div class="member-link">
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<a href="#" onClick="return toggleMember('handle2', false);"><tt><b>handle2</b></tt></a>
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</div>
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</div>
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<div class="member-close"><input type="button" value="Close" onClick="toggleMember('handle2', false);"></div>
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<div class="clear"></div>
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</div>
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<div class="member-text">
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<p>The handle point that describes the tangent in the second anchor point.</p>
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<ul><b>Type:</b>
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<li>
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<a href="../classes/Point.html"><tt>Point</tt></a>
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</li>
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</ul>
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</div>
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</div>
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</div>
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<div id="segment1-member" class="member">
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<div id="segment1-link" class="member-link">
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<a name="segment1" href="#" onClick="return toggleMember('segment1', false);"><tt><b>segment1</b></tt></a>
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</div>
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<div id="segment1-description" class="member-description hidden">
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<div class="member-header">
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<div class="member-title">
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<div class="member-link">
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<a href="#" onClick="return toggleMember('segment1', false);"><tt><b>segment1</b></tt></a>
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</div>
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</div>
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<div class="member-close"><input type="button" value="Close" onClick="toggleMember('segment1', false);"></div>
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<div class="clear"></div>
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</div>
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<div class="member-text">
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<p>The first segment of the curve.</p>
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<ul><b>Type:</b>
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<li>
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<a href="../classes/Segment.html"><tt>Segment</tt></a>
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</li>
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</ul>
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</div>
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</div>
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</div>
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<div id="segment2-member" class="member">
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<div id="segment2-link" class="member-link">
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<a name="segment2" href="#" onClick="return toggleMember('segment2', false);"><tt><b>segment2</b></tt></a>
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</div>
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<div id="segment2-description" class="member-description hidden">
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<div class="member-header">
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<div class="member-title">
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<div class="member-link">
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<a href="#" onClick="return toggleMember('segment2', false);"><tt><b>segment2</b></tt></a>
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</div>
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</div>
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<div class="member-close"><input type="button" value="Close" onClick="toggleMember('segment2', false);"></div>
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<div class="clear"></div>
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</div>
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<div class="member-text">
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<p>The second segment of the curve.</p>
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<ul><b>Type:</b>
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<li>
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<a href="../classes/Segment.html"><tt>Segment</tt></a>
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</li>
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</ul>
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</div>
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</div>
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</div>
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<div id="path-member" class="member">
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<div id="path-link" class="member-link">
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<a name="path" href="#" onClick="return toggleMember('path', false);"><tt><b>path</b></tt></a>
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</div>
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<div id="path-description" class="member-description hidden">
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<div class="member-header">
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<div class="member-title">
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<div class="member-link">
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<a href="#" onClick="return toggleMember('path', false);"><tt><b>path</b></tt></a>
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</div>
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</div>
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<div class="member-close"><input type="button" value="Close" onClick="toggleMember('path', false);"></div>
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<div class="clear"></div>
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</div>
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<div class="member-text">
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<p>The path that the curve belongs to.</p>
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<ul><b>Type:</b>
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<li>
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<a href="../classes/Path.html"><tt>Path</tt></a>
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</li>
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</ul>
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</div>
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</div>
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</div>
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<div id="index-member" class="member">
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<div id="index-link" class="member-link">
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<a name="index" href="#" onClick="return toggleMember('index', false);"><tt><b>index</b></tt></a>
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</div>
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<div id="index-description" class="member-description hidden">
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<div class="member-header">
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<div class="member-title">
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<div class="member-link">
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<a href="#" onClick="return toggleMember('index', false);"><tt><b>index</b></tt></a>
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</div>
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</div>
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<div class="member-close"><input type="button" value="Close" onClick="toggleMember('index', false);"></div>
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<div class="clear"></div>
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</div>
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<div class="member-text">
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<p>The index of the curve in the <a href="../classes/Path.html#curves"><tt>path.curves</tt></a> array.</p>
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<ul><b>Type:</b>
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<li>
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<tt>Number</tt>
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</li>
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</ul>
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</div>
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</div>
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</div>
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<div id="next-member" class="member">
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<div id="next-link" class="member-link">
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<a name="next" href="#" onClick="return toggleMember('next', false);"><tt><b>next</b></tt></a>
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</div>
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<div id="next-description" class="member-description hidden">
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<div class="member-header">
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<div class="member-title">
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<div class="member-link">
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<a href="#" onClick="return toggleMember('next', false);"><tt><b>next</b></tt></a>
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</div>
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</div>
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<div class="member-close"><input type="button" value="Close" onClick="toggleMember('next', false);"></div>
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<div class="clear"></div>
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</div>
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<div class="member-text">
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<p>The next curve in the <a href="../classes/Path.html#curves"><tt>path.curves</tt></a> array that the curve
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belongs to.</p>
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<ul><b>Type:</b>
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<li>
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<a href="../classes/Curve.html"><tt>Curve</tt></a>
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</li>
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</ul>
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</div>
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</div>
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</div>
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<div id="previous-member" class="member">
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<div id="previous-link" class="member-link">
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<a name="previous" href="#" onClick="return toggleMember('previous', false);"><tt><b>previous</b></tt></a>
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</div>
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<div id="previous-description" class="member-description hidden">
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<div class="member-header">
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<div class="member-title">
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<div class="member-link">
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<a href="#" onClick="return toggleMember('previous', false);"><tt><b>previous</b></tt></a>
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</div>
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</div>
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<div class="member-close"><input type="button" value="Close" onClick="toggleMember('previous', false);"></div>
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<div class="clear"></div>
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</div>
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<div class="member-text">
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<p>The previous curve in the <a href="../classes/Path.html#curves"><tt>path.curves</tt></a> array that the curve
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belongs to.</p>
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<ul><b>Type:</b>
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<li>
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<a href="../classes/Curve.html"><tt>Curve</tt></a>
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</li>
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</ul>
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</div>
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</div>
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</div>
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<div id="selected-member" class="member">
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<div id="selected-link" class="member-link">
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<a name="selected" href="#" onClick="return toggleMember('selected', false);"><tt><b>selected</b></tt></a>
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</div>
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<div id="selected-description" class="member-description hidden">
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<div class="member-header">
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<div class="member-title">
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<div class="member-link">
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<a href="#" onClick="return toggleMember('selected', false);"><tt><b>selected</b></tt></a>
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</div>
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</div>
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<div class="member-close"><input type="button" value="Close" onClick="toggleMember('selected', false);"></div>
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<div class="clear"></div>
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</div>
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<div class="member-text">
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<p>Specifies whether the handles of the curve are selected.</p>
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<ul><b>Type:</b>
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<li>
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<tt>Boolean</tt>
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</li>
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</ul>
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</div>
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</div>
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</div>
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<div id="length-member" class="member">
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<div id="length-link" class="member-link">
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<a name="length" href="#" onClick="return toggleMember('length', false);"><tt><b>length</b></tt></a>
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</div>
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<div id="length-description" class="member-description hidden">
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<div class="member-header">
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<div class="member-title">
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<div class="member-link">
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<a href="#" onClick="return toggleMember('length', false);"><tt><b>length</b></tt></a>
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</div>
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</div>
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<div class="member-close"><input type="button" value="Close" onClick="toggleMember('length', false);"></div>
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<div class="clear"></div>
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</div>
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<div class="member-text">
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<p>The approximated length of the curve in points.</p>
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<ul><b>Type:</b>
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<li>
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<tt>Number</tt>
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</li>
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</ul>
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</div>
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</div>
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</div>
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</div>
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<!-- ============================== methods ================================ -->
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<div class="reference-members"><h2>Methods</h2>
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<div id="islinear-member" class="member">
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<div id="islinear-link" class="member-link">
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<a name="islinear" href="#" onClick="return toggleMember('islinear', false);"><tt><b>isLinear</b>()</tt></a>
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</div>
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<div id="islinear-description" class="member-description hidden">
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<div class="member-header">
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<div class="member-title">
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<div class="member-link">
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<a href="#" onClick="return toggleMember('islinear', false);"><tt><b>isLinear</b>()</tt></a>
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</div>
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</div>
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<div class="member-close"><input type="button" value="Close" onClick="toggleMember('islinear', false);"></div>
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<div class="clear"></div>
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</div>
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<div class="member-text">
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<p>Checks if this curve is linear, meaning it does not define any curve
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handle.</p>
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<ul><b>Returns:</b>
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<li>
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<tt><tt>Boolean</tt></tt> — <tt>true</tt> the curve is linear, <tt>false</tt> otherwise
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</li>
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</ul>
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</div>
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</div>
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</div>
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<div id="getparameter-length-member" class="member">
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<div id="getparameter-length-link" class="member-link">
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<a name="getparameter-length" href="#" onClick="return toggleMember('getparameter-length', false);"><tt><b>getParameter</b>(length[, start])</tt></a>
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</div>
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<div id="getparameter-length-description" class="member-description hidden">
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<div class="member-header">
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<div class="member-title">
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<div class="member-link">
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<a href="#" onClick="return toggleMember('getparameter-length', false);"><tt><b>getParameter</b>(length[, start])</tt></a>
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</div>
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</div>
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<div class="member-close"><input type="button" value="Close" onClick="toggleMember('getparameter-length', false);"></div>
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<div class="clear"></div>
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</div>
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<div class="member-text">
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<ul><b>Parameters:</b>
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<li>
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<tt>length:</tt>
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<tt>Number</tt>
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</li>
|
|
|
|
<li>
|
|
<tt>start:</tt>
|
|
<tt>Number</tt>
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|
|
|
— optional
|
|
</li>
|
|
|
|
</ul>
|
|
|
|
|
|
<ul><b>Returns:</b>
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|
|
|
<li>
|
|
<tt><tt>Boolean</tt></tt> — <tt>true</tt> the curve is linear, <tt>false</tt> otherwise
|
|
</li>
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|
|
|
</ul>
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|
|
|
|
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</div>
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</div>
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</div>
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|
|
<div id="getpoint-parameter-member" class="member">
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|
<div id="getpoint-parameter-link" class="member-link">
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<a name="getpoint-parameter" href="#" onClick="return toggleMember('getpoint-parameter', false);"><tt><b>getPoint</b>(parameter)</tt></a>
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</div>
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|
<div id="getpoint-parameter-description" class="member-description hidden">
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<div class="member-header">
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|
<div class="member-title">
|
|
<div class="member-link">
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|
<a href="#" onClick="return toggleMember('getpoint-parameter', false);"><tt><b>getPoint</b>(parameter)</tt></a>
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|
</div>
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|
</div>
|
|
<div class="member-close"><input type="button" value="Close" onClick="toggleMember('getpoint-parameter', false);"></div>
|
|
<div class="clear"></div>
|
|
</div>
|
|
<div class="member-text">
|
|
<p>Returns the point on the curve at the specified position.</p>
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|
|
|
<ul><b>Parameters:</b>
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|
|
|
<li>
|
|
<tt>parameter:</tt>
|
|
<tt>Number</tt>
|
|
— the position at which to find the point as
|
|
a value between <tt>0</tt> and <tt>1</tt>.
|
|
|
|
</li>
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|
|
|
</ul>
|
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|
|
|
<ul><b>Returns:</b>
|
|
|
|
<li>
|
|
<tt><a href="../classes/Point.html"><tt>Point</tt></a></tt>
|
|
</li>
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|
|
|
</ul>
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|
</div>
|
|
</div>
|
|
</div>
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|
|
|
|
|
<div id="gettangent-parameter-member" class="member">
|
|
<div id="gettangent-parameter-link" class="member-link">
|
|
<a name="gettangent-parameter" href="#" onClick="return toggleMember('gettangent-parameter', false);"><tt><b>getTangent</b>(parameter)</tt></a>
|
|
</div>
|
|
<div id="gettangent-parameter-description" class="member-description hidden">
|
|
<div class="member-header">
|
|
<div class="member-title">
|
|
<div class="member-link">
|
|
<a href="#" onClick="return toggleMember('gettangent-parameter', false);"><tt><b>getTangent</b>(parameter)</tt></a>
|
|
</div>
|
|
</div>
|
|
<div class="member-close"><input type="button" value="Close" onClick="toggleMember('gettangent-parameter', false);"></div>
|
|
<div class="clear"></div>
|
|
</div>
|
|
<div class="member-text">
|
|
<p>Returns the tangent point on the curve at the specified position.</p>
|
|
|
|
<ul><b>Parameters:</b>
|
|
|
|
<li>
|
|
<tt>parameter:</tt>
|
|
<tt>Number</tt>
|
|
— the position at which to find the tangent
|
|
point as a value between <tt>0</tt> and <tt>1</tt>.
|
|
|
|
</li>
|
|
|
|
</ul>
|
|
|
|
|
|
|
|
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
|
|
<div id="getnormal-parameter-member" class="member">
|
|
<div id="getnormal-parameter-link" class="member-link">
|
|
<a name="getnormal-parameter" href="#" onClick="return toggleMember('getnormal-parameter', false);"><tt><b>getNormal</b>(parameter)</tt></a>
|
|
</div>
|
|
<div id="getnormal-parameter-description" class="member-description hidden">
|
|
<div class="member-header">
|
|
<div class="member-title">
|
|
<div class="member-link">
|
|
<a href="#" onClick="return toggleMember('getnormal-parameter', false);"><tt><b>getNormal</b>(parameter)</tt></a>
|
|
</div>
|
|
</div>
|
|
<div class="member-close"><input type="button" value="Close" onClick="toggleMember('getnormal-parameter', false);"></div>
|
|
<div class="clear"></div>
|
|
</div>
|
|
<div class="member-text">
|
|
<p>Returns the normal point on the curve at the specified position.</p>
|
|
|
|
<ul><b>Parameters:</b>
|
|
|
|
<li>
|
|
<tt>parameter:</tt>
|
|
<tt>Number</tt>
|
|
— the position at which to find the normal
|
|
point as a value between <tt>0</tt> and <tt>1</tt>.
|
|
|
|
</li>
|
|
|
|
</ul>
|
|
|
|
|
|
|
|
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
|
|
<div id="reverse-member" class="member">
|
|
<div id="reverse-link" class="member-link">
|
|
<a name="reverse" href="#" onClick="return toggleMember('reverse', false);"><tt><b>reverse</b>()</tt></a>
|
|
</div>
|
|
<div id="reverse-description" class="member-description hidden">
|
|
<div class="member-header">
|
|
<div class="member-title">
|
|
<div class="member-link">
|
|
<a href="#" onClick="return toggleMember('reverse', false);"><tt><b>reverse</b>()</tt></a>
|
|
</div>
|
|
</div>
|
|
<div class="member-close"><input type="button" value="Close" onClick="toggleMember('reverse', false);"></div>
|
|
<div class="clear"></div>
|
|
</div>
|
|
<div class="member-text">
|
|
<p>Returns a reversed version of the curve, without modifying the curve
|
|
itself.</p>
|
|
|
|
|
|
<ul><b>Returns:</b>
|
|
|
|
<li>
|
|
<tt><a href="../classes/Curve.html"><tt>Curve</tt></a></tt> — a reversed version of the curve
|
|
</li>
|
|
|
|
</ul>
|
|
|
|
|
|
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
|
|
<div id="clone-member" class="member">
|
|
<div id="clone-link" class="member-link">
|
|
<a name="clone" href="#" onClick="return toggleMember('clone', false);"><tt><b>clone</b>()</tt></a>
|
|
</div>
|
|
<div id="clone-description" class="member-description hidden">
|
|
<div class="member-header">
|
|
<div class="member-title">
|
|
<div class="member-link">
|
|
<a href="#" onClick="return toggleMember('clone', false);"><tt><b>clone</b>()</tt></a>
|
|
</div>
|
|
</div>
|
|
<div class="member-close"><input type="button" value="Close" onClick="toggleMember('clone', false);"></div>
|
|
<div class="clear"></div>
|
|
</div>
|
|
<div class="member-text">
|
|
<p>Returns a copy of the curve.</p>
|
|
|
|
|
|
<ul><b>Returns:</b>
|
|
|
|
<li>
|
|
<tt><a href="../classes/Curve.html"><tt>Curve</tt></a></tt>
|
|
</li>
|
|
|
|
</ul>
|
|
|
|
|
|
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
|
|
<div id="tostring-member" class="member">
|
|
<div id="tostring-link" class="member-link">
|
|
<a name="tostring" href="#" onClick="return toggleMember('tostring', false);"><tt><b>toString</b>()</tt></a>
|
|
</div>
|
|
<div id="tostring-description" class="member-description hidden">
|
|
<div class="member-header">
|
|
<div class="member-title">
|
|
<div class="member-link">
|
|
<a href="#" onClick="return toggleMember('tostring', false);"><tt><b>toString</b>()</tt></a>
|
|
</div>
|
|
</div>
|
|
<div class="member-close"><input type="button" value="Close" onClick="toggleMember('tostring', false);"></div>
|
|
<div class="clear"></div>
|
|
</div>
|
|
<div class="member-text">
|
|
|
|
|
|
|
|
<ul><b>Returns:</b>
|
|
|
|
<li>
|
|
<tt><tt>String</tt></tt> — A string representation of the curve.
|
|
</li>
|
|
|
|
</ul>
|
|
|
|
|
|
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
<!-- =========================== copyright notice ========================= -->
|
|
<p class="footer">Copyright © 2011 <a href="http://www.lehni.org" target="_blank">Jürg Lehni</a> & <a href="http://www.jonathanpuckey.com" target="_blank">Jonathan Puckey</a>. All Rights Reserved.</p>
|
|
<div class="content-end"></div>
|
|
|
|
</body> |