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| author | David Thompson <dthompson@vistahigherlearning.com> | 2019-06-04 20:49:16 -0400 |
|---|---|---|
| committer | David Thompson <dthompson@vistahigherlearning.com> | 2019-06-04 20:49:16 -0400 |
| commit | 279f17ac0e1b3d019c2b294098e834d249376686 (patch) | |
| tree | 47be849d3b35635d167e00cd8448815a75167a23 /manuals/chickadee/Bezier-Curves.html | |
| parent | 7b808b9268ec735a7a176d10bf1887b3fa66d13e (diff) | |
Update chickadee manual.
Diffstat (limited to 'manuals/chickadee/Bezier-Curves.html')
| -rw-r--r-- | manuals/chickadee/Bezier-Curves.html | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/manuals/chickadee/Bezier-Curves.html b/manuals/chickadee/Bezier-Curves.html index 6a49b59..ff04e6b 100644 --- a/manuals/chickadee/Bezier-Curves.html +++ b/manuals/chickadee/Bezier-Curves.html @@ -1,6 +1,6 @@ <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> -<!-- Copyright (C) 2017 David Thompson davet@gnu.org +<!-- Copyright (C) 2017, 2018, 2019 David Thompson davet@gnu.org Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 @@ -13,6 +13,8 @@ A copy of the license is also available from the Free Software Foundation Web site at http://www.gnu.org/licenses/fdl.html. +* Chickadee: (chickadee). Game programming toolkit for Guile. + The document was typeset with http://www.texinfo.org/ (GNU Texinfo). --> @@ -110,39 +112,39 @@ mostly for visualizing and debugging curves that would be unseen in the final game. See See <a href="Lines-and-Shapes.html#Lines-and-Shapes">Lines and Shapes</a> for more information. </p> <dl> -<dt><a name="index-make_002dbezier_002dcurve"></a>Procedure: <strong>make-bezier-curve</strong> <em><var>p0</var> <var>p1</var> <var>p2</var> <var>p3</var></em></dt> +<dt><a name="index-make_002dbezier_002dcurve"></a>Procedure: <strong>make-bezier-curve</strong> <em>p0 p1 p2 p3</em></dt> <dd><p>Return a new Bezier curve object whose starting point is <var>p0</var>, ending point is <var>p3</var>, and control points are <var>p1</var> and <var>p2</var>. All points are 2D vectors. </p></dd></dl> <dl> -<dt><a name="index-bezier_002dcurve_003f"></a>Procedure: <strong>bezier-curve?</strong> <em><var>obj</var></em></dt> +<dt><a name="index-bezier_002dcurve_003f"></a>Procedure: <strong>bezier-curve?</strong> <em>obj</em></dt> <dd><p>Return <code>#t</code> if <var>obj</var> is a Bezier curve. </p></dd></dl> <dl> -<dt><a name="index-bezier_002dcurve_002dp0"></a>Procedure: <strong>bezier-curve-p0</strong> <em><var>bezier</var></em></dt> +<dt><a name="index-bezier_002dcurve_002dp0"></a>Procedure: <strong>bezier-curve-p0</strong> <em>bezier</em></dt> <dd><p>Return the starting point of <var>bezier</var>. </p></dd></dl> <dl> -<dt><a name="index-bezier_002dcurve_002dp1"></a>Procedure: <strong>bezier-curve-p1</strong> <em><var>bezier</var></em></dt> +<dt><a name="index-bezier_002dcurve_002dp1"></a>Procedure: <strong>bezier-curve-p1</strong> <em>bezier</em></dt> <dd><p>Return the first control point of <var>bezier</var>. </p></dd></dl> <dl> -<dt><a name="index-bezier_002dcurve_002dp2"></a>Procedure: <strong>bezier-curve-p2</strong> <em><var>bezier</var></em></dt> +<dt><a name="index-bezier_002dcurve_002dp2"></a>Procedure: <strong>bezier-curve-p2</strong> <em>bezier</em></dt> <dd><p>Return the second control point of <var>bezier</var>. </p></dd></dl> <dl> -<dt><a name="index-bezier_002dcurve_002dp3"></a>Procedure: <strong>bezier-curve-p3</strong> <em><var>bezier</var></em></dt> +<dt><a name="index-bezier_002dcurve_002dp3"></a>Procedure: <strong>bezier-curve-p3</strong> <em>bezier</em></dt> <dd><p>Return the end point of <var>bezier</var>. </p></dd></dl> <dl> -<dt><a name="index-bezier_002dpath"></a>Procedure: <strong>bezier-path</strong> <em>. <var>control-points</var></em></dt> +<dt><a name="index-bezier_002dpath"></a>Procedure: <strong>bezier-path</strong> <em>. control-points</em></dt> <dd><p>Return a list of connected bezier curves defined by <var>control-points</var>. The first curve is defined by the first 4 arguments and every additional curve thereafter requires 3 additional @@ -150,14 +152,14 @@ arguments. </p></dd></dl> <dl> -<dt><a name="index-bezier_002dcurve_002dpoint_002dat"></a>Procedure: <strong>bezier-curve-point-at</strong> <em><var>bezier</var> <var>t</var></em></dt> +<dt><a name="index-bezier_002dcurve_002dpoint_002dat"></a>Procedure: <strong>bezier-curve-point-at</strong> <em>bezier t</em></dt> <dd><p>Return the coordinates for <var>bezier</var> at <var>t</var> (a value in the range [0, 1] representing how far from the start of the curve to check) as a 2D vector. </p></dd></dl> <dl> -<dt><a name="index-bezier_002dcurve_002dpoint_002dat_0021"></a>Procedure: <strong>bezier-curve-point-at!</strong> <em><var>dest</var> <var>bezier</var> <var>t</var></em></dt> +<dt><a name="index-bezier_002dcurve_002dpoint_002dat_0021"></a>Procedure: <strong>bezier-curve-point-at!</strong> <em>dest bezier t</em></dt> <dd><p>Modify the 2D vector <var>dest</var> in-place to contain the coordinates for <var>bezier</var> at <var>t</var>. </p></dd></dl> |