This is the cubic-bezier Reference Manual, version 0.1.0, generated automatically by Declt version 4.0 beta 2 "William Riker" on Sun Sep 15 04:55:44 2024 GMT+0.
The main system appears first, followed by any subsystem dependency.
cubic-bezierA library for constructing and evaluating cubic Bézier curve paths.
Michael Fiano <mail@mfiano.net>
MIT
0.1.0
mfiano-utils (system).
origin (system).
package.lisp (file).
cubic-bezier.lisp (file).
Files are sorted by type and then listed depth-first from the systems components trees.
cubic-bezier/cubic-bezier.lisppackage.lisp (file).
cubic-bezier (system).
add-points (function).
collect-points (function).
collect-segments (function).
curve (structure).
edit-point (function).
evaluate (function).
make-curve (function).
point-count-valid-p (function).
point-index-present-p (function).
%make-curve (function).
+matrix+ (constant).
add-geometry (function).
arc-lengths (reader).
(setf arc-lengths) (writer).
arc-lengths-update (reader).
(setf arc-lengths-update) (writer).
divisions (reader).
(setf divisions) (writer).
ensure-point-list (function).
estimate-arc-lengths (function).
geometry (reader).
(setf geometry) (writer).
make-geometry (function).
remap (function).
verify-points (function).
Packages are listed by definition order.
cubic-beziercommon-lisp.
add-points (function).
collect-points (function).
collect-segments (function).
curve (structure).
edit-point (function).
evaluate (function).
make-curve (function).
point-count-valid-p (function).
point-index-present-p (function).
%make-curve (function).
+matrix+ (constant).
add-geometry (function).
arc-lengths (reader).
(setf arc-lengths) (writer).
arc-lengths-update (reader).
(setf arc-lengths-update) (writer).
divisions (reader).
(setf divisions) (writer).
ensure-point-list (function).
estimate-arc-lengths (function).
geometry (reader).
(setf geometry) (writer).
make-geometry (function).
remap (function).
verify-points (function).
Definitions are sorted by export status, category, package, and then by lexicographic order.
Append the specified ‘points‘ to ‘curve‘. ‘points‘ should be a sequence of 3-dimensional vectors as constructed with ‘#’origin.vec3:vec‘. NOTE: It is an error to add less than a segment worth of points. A cubic Bézier curve is defined by 4 points for the first segment, and three points for each successive segment (since the first point of a segment is shared with the last point of the previous segment.)
Evaluate ‘count‘ points along curve, returning a list of 3-dimensional vectors. If ‘even-spacing-p‘ is supplied, arc-length re-parameterization is applied: see the documentation for ‘#’evaluate‘ for more information.
Collect a list of ‘count‘ segments of ‘curve‘. A segment is a list of two 3-dimensional vectors. If ‘even-spacing-p‘ is supplied, arc-length re-parameterization is applied: see the documentation for ‘#’evaluate‘ for more information.
Edit the point of ‘curve‘ at index ‘index‘ with ‘value‘. ‘value‘ should be a 3-dimensional vector as constructed with ‘#’origin.vec3:vec‘.
Evaluate ‘curve‘ at parameter ‘parameter‘. If ‘even-spacing-p‘ is non-NIL, arc-length re-parameterization is applied, which evenly spaces points along the curve. The number of points is defined by the ‘divisions‘ argument supplied when constructing the curve with ‘#’make-curve‘. Arc-length re-parameterization is a remapping of ‘parameter‘ before evaluating the curve, in order to allow for uses such as animation along a curve with a constant velocity.
Create a cubic Bézier curve path from the given sequence of ‘points‘. ‘points‘ is a sequence of 3-dimensional vectors as constructed with ‘#’origin.vec3:vec‘. ‘divisions‘ is the number of sub-divisions to use when estimating the arc-length of the curve path: see the documentation for ‘#’evaluate‘ for more information.
Check whether the integer ‘point-count‘ is a valid number of points for a cubic Bézier curve path. To be valid, there must be at least 4 points, any increment of 3 thereafter: (4, 7, 10, 13, ...).
Check if ‘curve‘ has a point at index ‘index‘.
structure-object.
fixnum
100
vector
(make-array 0 :adjustable t :fill-pointer 0)
mfiano-utils:f32a
(mfiano-utils:make-f32-array 0)
boolean
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