The com.elbeno.curve Reference Manual

Table of Contents

The com.elbeno.curve Reference Manual

This is the com.elbeno.curve Reference Manual, version 0.1, generated automatically by Declt version 3.0 "Montgomery Scott" on Mon Apr 19 15:48:08 2021 GMT+0.

1 Introduction

Curve

This is com.elbeno.curve, a library for modulating various kinds of curves.

This library depends on com.elbeno.vector and vecto.

The following curves are supported:

• Circles
• Ellipses
• Cubic Bézier curves
• Cubic Bézier splines
• Line segments
• "Polylines" i.e. sequences of line segments

Each curve type may be modulated onto each other curve type (e.g. modulate a "wave" Bézier curve onto a circle to produce a circle with a wavy edge). C1 continuity is preserved.

Arbitrary elliptical arcs are approximated with cubic Bézier curves using the method in Luc Maisonobe's paper "Drawing an elliptical arc using polylines, quadratic or cubic Bézier curves" (which can be found at http:// www.spaceroots.org/documents/ellipse/elliptical-arc.pdf).

Sample usage/output can be seen from the file test.lisp or by invoking (runtes

2 Systems

The main system appears first, followed by any subsystem dependency.

2.1 com.elbeno.curve

Author

Ben Deane <lisp@elbeno.com>

License

GPLv3

Description

A library for modulating curves onto curves.

Version

0.1

Dependencies

• vecto
• com.elbeno.vector

Source

com.elbeno.curve.asd (file)

Components

• package.lisp (file)
• classes.lisp (file)
• draw.lisp (file)
• arcs.lisp (file)
• sample.lisp (file)
• modulate.lisp (file)
• test.lisp (file)

3 Files

Files are sorted by type and then listed depth-first from the systems components trees.

3.1 Lisp

3.1.1 com.elbeno.curve.asd

Location

com.elbeno.curve.asd

Systems

com.elbeno.curve (system)

3.1.2 com.elbeno.curve/package.lisp

Parent

com.elbeno.curve (system)

Location

package.lisp

Packages

com.elbeno.curve

3.1.3 com.elbeno.curve/classes.lisp

Dependency

package.lisp (file)

Parent

com.elbeno.curve (system)

Location

classes.lisp

Exported Definitions

• bezier (class)
• circle (class)
• ellipse (class)
• line (class)
• polyline (class)
• spline (class)

Internal Definitions

• a (method)
• (setf a) (method)
• b (method)
• (setf b) (method)
• bezier-list (method)
• (setf bezier-list) (method)
• center (method)
• (setf center) (method)
• center (method)
• (setf center) (method)
• curve (class)
• line-list (method)
• (setf line-list) (method)
• o (method)
• (setf o) (method)
• p0 (method)
• (setf p0) (method)
• p0 (method)
• (setf p0) (method)
• p1 (method)
• (setf p1) (method)
• p1 (method)
• (setf p1) (method)
• p2 (method)
• (setf p2) (method)
• p3 (method)
• (setf p3) (method)
• r (method)
• (setf r) (method)

3.1.4 com.elbeno.curve/draw.lisp

Dependency

classes.lisp (file)

Parent

com.elbeno.curve (system)

Location

draw.lisp

Exported Definitions

• draw (generic function)
• draw (method)
• draw (method)
• draw (method)
• draw (method)
• draw (method)
• draw (method)

Internal Definitions

• draw-bezier-no-move (function)
• draw-line-no-move (function)

3.1.5 com.elbeno.curve/arcs.lisp

Dependency

draw.lisp (file)

Parent

com.elbeno.curve (system)

Location

arcs.lisp

Exported Definitions

approximate-elliptical-arc (function)

Internal Definitions

• +cubic-error-coeffs-0+ (special variable)
• +cubic-error-coeffs-1+ (special variable)
• approximate-arc (function)
• approximate-arc-single (function)
• bezier-error (function)
• calc-c-term (function)
• ellipse-deriv-val (function)
• ellipse-val (function)
• safe-add (function)

3.1.6 com.elbeno.curve/sample.lisp

Dependency

arcs.lisp (file)

Parent

com.elbeno.curve (system)

Location

sample.lisp

Internal Definitions

• bezier-decasteljau (function)
• decasteljau (function)
• find-curve-param (function)
• interp-curve-param (function)
• make-length-sampler (generic function)
• make-length-sampler (method)
• make-length-sampler (method)
• make-length-sampler (method)
• make-param-sampler (generic function)
• make-param-sampler (method)
• make-param-sampler (method)
• make-param-sampler (method)
• make-param-sampler (method)
• make-param-sampler (method)
• make-param-sampler (method)
• polyline-sample (function)
• sample-curve (function)
• spline-decasteljau (function)

3.1.7 com.elbeno.curve/modulate.lisp

Dependency

sample.lisp (file)

Parent

com.elbeno.curve (system)

Location

modulate.lisp

Exported Definitions

• modulate (generic function)
• modulate (method)
• modulate (method)
• modulate (method)
• modulate (method)

Internal Definitions

• reverse-bez-curve (function)
• reverse-spline (function)
• trans-bez-curve (function)
• trans-spline (function)
• transform-curve (generic function)
• transform-curve (method)
• transform-curve (method)
• transform-curve (method)
• transform-curve (method)
• transform-polyline (function)
• transform-spline (function)
• x-fracs (function)

3.1.8 com.elbeno.curve/test.lisp

Dependency

modulate.lisp (file)

Parent

com.elbeno.curve (system)

Location

test.lisp

Exported Definitions

runtests (function)

Internal Definitions

• *bezier* (special variable)
• *circle* (special variable)
• *ellipse* (special variable)
• *line* (special variable)
• *polyline* (special variable)
• *spline* (special variable)
• test-arc-approx (function)
• test-ellipse (function)
• test-mod-arc1 (function)
• test-mod-arc2 (function)
• test-mod-bezier (function)
• test-mod-circle (function)
• test-mod-curve (function)
• test-mod-ellipse (function)
• test-mod-line (function)
• test-mod-polyline (function)
• test-mod-spline (function)
• test-spirals (function)

4 Packages

Packages are listed by definition order.

4.1 com.elbeno.curve

Source

package.lisp (file)

Use List

• vecto
• com.elbeno.vector
• common-lisp

Exported Definitions

• approximate-elliptical-arc (function)
• bezier (class)
• circle (class)
• draw (generic function)
• draw (method)
• draw (method)
• draw (method)
• draw (method)
• draw (method)
• draw (method)
• ellipse (class)
• line (class)
• modulate (generic function)
• modulate (method)
• modulate (method)
• modulate (method)
• modulate (method)
• polyline (class)
• runtests (function)
• spline (class)

Internal Definitions

• *bezier* (special variable)
• *circle* (special variable)
• *ellipse* (special variable)
• *line* (special variable)
• *polyline* (special variable)
• *spline* (special variable)
• +cubic-error-coeffs-0+ (special variable)
• +cubic-error-coeffs-1+ (special variable)
• a (generic function)
• a (method)
• (setf a) (method)
• (setf a) (generic function)
• approximate-arc (function)
• approximate-arc-single (function)
• b (generic function)
• b (method)
• (setf b) (method)
• (setf b) (generic function)
• bezier-decasteljau (function)
• bezier-error (function)
• bezier-list (generic function)
• bezier-list (method)
• (setf bezier-list) (method)
• (setf bezier-list) (generic function)
• calc-c-term (function)
• center (generic function)
• center (method)
• (setf center) (method)
• center (method)
• (setf center) (method)
• (setf center) (generic function)
• curve (class)
• decasteljau (function)
• draw-bezier-no-move (function)
• draw-line-no-move (function)
• ellipse-deriv-val (function)
• ellipse-val (function)
• find-curve-param (function)
• interp-curve-param (function)
• line-list (generic function)
• line-list (method)
• (setf line-list) (method)
• (setf line-list) (generic function)
• make-length-sampler (generic function)
• make-length-sampler (method)
• make-length-sampler (method)
• make-length-sampler (method)
• make-param-sampler (generic function)
• make-param-sampler (method)
• make-param-sampler (method)
• make-param-sampler (method)
• make-param-sampler (method)
• make-param-sampler (method)
• make-param-sampler (method)
• o (generic function)
• o (method)
• (setf o) (method)
• (setf o) (generic function)
• p0 (generic function)
• p0 (method)
• (setf p0) (method)
• p0 (method)
• (setf p0) (method)
• (setf p0) (generic function)
• p1 (generic function)
• p1 (method)
• (setf p1) (method)
• p1 (method)
• (setf p1) (method)
• (setf p1) (generic function)
• p2 (generic function)
• p2 (method)
• (setf p2) (method)
• (setf p2) (generic function)
• p3 (generic function)
• p3 (method)
• (setf p3) (method)
• (setf p3) (generic function)
• polyline-sample (function)
• r (generic function)
• r (method)
• (setf r) (method)
• (setf r) (generic function)
• reverse-bez-curve (function)
• reverse-spline (function)
• safe-add (function)
• sample-curve (function)
• spline-decasteljau (function)
• test-arc-approx (function)
• test-ellipse (function)
• test-mod-arc1 (function)
• test-mod-arc2 (function)
• test-mod-bezier (function)
• test-mod-circle (function)
• test-mod-curve (function)
• test-mod-ellipse (function)
• test-mod-line (function)
• test-mod-polyline (function)
• test-mod-spline (function)
• test-spirals (function)
• trans-bez-curve (function)
• trans-spline (function)
• transform-curve (generic function)
• transform-curve (method)
• transform-curve (method)
• transform-curve (method)
• transform-curve (method)
• transform-polyline (function)
• transform-spline (function)
• x-fracs (function)

5 Definitions

Definitions are sorted by export status, category, package, and then by lexicographic order.

5.1 Exported definitions

5.1.1 Functions

Function: approximate-elliptical-arc CX CY A B THETA ETA1 ETA2 &optional DA/DETA DB/DETA ERR

Approximate an elliptical arc with a cubic bezier spline. Requirement: eta1 < eta2.

Package

com.elbeno.curve

Source

arcs.lisp (file)

Function: runtests ()

Package

com.elbeno.curve

Source

test.lisp (file)

5.1.2 Generic functions

Generic Function: draw C

Draw the curve with vecto, first moving.

Package

com.elbeno.curve

Source

draw.lisp (file)

Methods

Method: draw (C polyline)

Method: draw (C line)

Method: draw (C circle)

Method: draw (C ellipse)

Method: draw (C spline)

Method: draw (C bezier)

Generic Function: modulate C0 C1 N

Modulate a curve c1 onto a base curve c0 n times.

Package

com.elbeno.curve

Source

modulate.lisp (file)

Methods

Method: modulate (C0 curve) (C1 polyline) N

Method: modulate (C0 curve) (C1 spline) N

Method: modulate (C0 curve) (C1 bezier) N

Method: modulate (C0 curve) (C1 curve) N

5.1.3 Classes

Class: bezier ()

Package

com.elbeno.curve

Source

classes.lisp (file)

Direct superclasses

curve (class)

Direct methods

• modulate (method)
• transform-curve (method)
• make-param-sampler (method)
• draw (method)
• p3 (method)
• p3 (method)
• p2 (method)
• p2 (method)
• p1 (method)
• p1 (method)
• p0 (method)
• p0 (method)

Direct slots

Slot: start-point

Initargs

:p0

Initform

(error "must supply a bezier start point (p0)")

Readers

p0 (generic function)

Writers

(setf p0) (generic function)

Slot: control-point-1

Initargs

:p1

Initform

(error "must supply a bezier control point 1 (p1)")

Readers

p1 (generic function)

Writers

(setf p1) (generic function)

Slot: control-point-2

Initargs

:p2

Initform

(error "must supply a bezier control point 2 (p2)")

Readers

p2 (generic function)

Writers

(setf p2) (generic function)

Slot: end-point

Initargs

:p3

Initform

(error "must supply a bezier end point (p3)")

Readers

p3 (generic function)

Writers

(setf p3) (generic function)

Class: circle ()

Package

com.elbeno.curve

Source

classes.lisp (file)

Direct superclasses

curve (class)

Direct methods

• transform-curve (method)
• make-length-sampler (method)
• make-param-sampler (method)
• draw (method)
• r (method)
• r (method)
• center (method)
• center (method)

Direct slots

Slot: center

Initargs

:center

Initform

(com.elbeno.vector:make-vector 0 0)

Readers

center (generic function)

Writers

(setf center) (generic function)

Slot: radius

Initargs

:r

Initform

(error "must supply a radius (r)")

Readers

r (generic function)

Writers

(setf r) (generic function)

Class: ellipse ()

Package

com.elbeno.curve

Source

classes.lisp (file)

Direct superclasses

curve (class)

Direct methods

• transform-curve (method)
• make-param-sampler (method)
• draw (method)
• o (method)
• o (method)
• b (method)
• b (method)
• a (method)
• a (method)
• center (method)
• center (method)

Direct slots

Slot: center

Initargs

:center

Initform

(com.elbeno.vector:make-vector 0 0)

Readers

center (generic function)

Writers

(setf center) (generic function)

Slot: radius-x

Initargs

:a

Initform

(error "must supply an x radius (a)")

Readers

a (generic function)

Writers

(setf a) (generic function)

Slot: radius-y

Initargs

:b

Initform

(error "must supply a y radius (b)")

Readers

b (generic function)

Writers

(setf b) (generic function)

Slot: orientation

Initargs

:o

Initform

0

Readers

o (generic function)

Writers

(setf o) (generic function)

Class: line ()

Package

com.elbeno.curve

Source

classes.lisp (file)

Direct superclasses

curve (class)

Direct methods

• transform-curve (method)
• make-length-sampler (method)
• make-param-sampler (method)
• draw (method)
• p1 (method)
• p1 (method)
• p0 (method)
• p0 (method)

Direct slots

Slot: start-point

Initargs

:p0

Initform

(error "must supply a line start point (p0)")

Readers

p0 (generic function)

Writers

(setf p0) (generic function)

Slot: end-point

Initargs

:p1

Initform

(error "must supply a line end point (p1)")

Readers

p1 (generic function)

Writers

(setf p1) (generic function)

Class: polyline ()

Package

com.elbeno.curve

Source

classes.lisp (file)

Direct superclasses

curve (class)

Direct methods

• modulate (method)
• make-param-sampler (method)
• draw (method)
• line-list (method)
• line-list (method)

Direct slots

Slot: line-list

Initargs

:line-list

Readers

line-list (generic function)

Writers

(setf line-list) (generic function)

Class: spline ()

Package

com.elbeno.curve

Source

classes.lisp (file)

Direct superclasses

curve (class)

Direct methods

• modulate (method)
• make-param-sampler (method)
• draw (method)
• bezier-list (method)
• bezier-list (method)

Direct slots

Slot: bezier-list

Initargs

:bezier-list

Readers

bezier-list (generic function)

Writers

(setf bezier-list) (generic function)

5.2 Internal definitions

5.2.1 Special variables

Special Variable: *bezier*

Package

com.elbeno.curve

Source

test.lisp (file)

Special Variable: *circle*

Package

com.elbeno.curve

Source

test.lisp (file)

Special Variable: *ellipse*

Package

com.elbeno.curve

Source

test.lisp (file)

Special Variable: *line*

Package

com.elbeno.curve

Source

test.lisp (file)

Special Variable: *polyline*

Package

com.elbeno.curve

Source

test.lisp (file)

Special Variable: *spline*

Package

com.elbeno.curve

Source

test.lisp (file)

Special Variable: +cubic-error-coeffs-0+

Package

com.elbeno.curve

Source

arcs.lisp (file)

Special Variable: +cubic-error-coeffs-1+

Package

com.elbeno.curve

Source

arcs.lisp (file)

5.2.2 Functions

Function: approximate-arc CX CY A B THETA ETA1 ETA2 DA/DETA DB/DETA ERR

Package

com.elbeno.curve

Source

arcs.lisp (file)

Function: approximate-arc-single CX CY A B THETA ETA1 ETA2 DA/DETA DB/DETA

Package

com.elbeno.curve

Source

arcs.lisp (file)

Function: bezier-decasteljau BEZ K

Package

com.elbeno.curve

Source

sample.lisp (file)

Function: bezier-error A B ETA1 ETA2

Package

com.elbeno.curve

Source

arcs.lisp (file)

Function: calc-c-term I B/A ETASUM ARR

Package

com.elbeno.curve

Source

arcs.lisp (file)

Function: decasteljau P0 P1 P2 P3 K

Package

com.elbeno.curve

Source

sample.lisp (file)

Function: draw-bezier-no-move C

Package

com.elbeno.curve

Source

draw.lisp (file)

Function: draw-line-no-move C

Package

com.elbeno.curve

Source

draw.lisp (file)

Function: ellipse-deriv-val A B THETA ETA

Package

com.elbeno.curve

Source

arcs.lisp (file)

Function: ellipse-val CX CY A B THETA ETA

Package

com.elbeno.curve

Source

arcs.lisp (file)

Function: find-curve-param PT-ARRAY DISTANCE &optional START END

Package

com.elbeno.curve

Source

sample.lisp (file)

Function: interp-curve-param PT-ARRAY IDX DISTANCE

Package

com.elbeno.curve

Source

sample.lisp (file)

Function: polyline-sample LINE-LIST K

Package

com.elbeno.curve

Source

sample.lisp (file)

Function: reverse-bez-curve C

Package

com.elbeno.curve

Source

modulate.lisp (file)

Function: reverse-spline C

Package

com.elbeno.curve

Source

modulate.lisp (file)

Function: safe-add A B

Package

com.elbeno.curve

Source

arcs.lisp (file)

Function: sample-curve SAMPLER-FN N

Package

com.elbeno.curve

Source

sample.lisp (file)

Function: spline-decasteljau BEZIER-LIST K

Package

com.elbeno.curve

Source

sample.lisp (file)

Function: test-arc-approx ()

Package

com.elbeno.curve

Source

test.lisp (file)

Function: test-ellipse FILENAME

Package

com.elbeno.curve

Source

test.lisp (file)

Function: test-mod-arc1 FILENAME

Package

com.elbeno.curve

Source

test.lisp (file)

Function: test-mod-arc2 FILENAME

Package

com.elbeno.curve

Source

test.lisp (file)

Function: test-mod-bezier FILENAME

Package

com.elbeno.curve

Source

test.lisp (file)

Function: test-mod-circle FILENAME

Package

com.elbeno.curve

Source

test.lisp (file)

Function: test-mod-curve FILENAME C0 C1

Package

com.elbeno.curve

Source

test.lisp (file)

Function: test-mod-ellipse FILENAME

Package

com.elbeno.curve

Source

test.lisp (file)

Function: test-mod-line FILENAME

Package

com.elbeno.curve

Source

test.lisp (file)

Function: test-mod-polyline FILENAME

Package

com.elbeno.curve

Source

test.lisp (file)

Function: test-mod-spline FILENAME

Package

com.elbeno.curve

Source

test.lisp (file)

Function: test-spirals ()

Package

com.elbeno.curve

Source

test.lisp (file)

Function: trans-bez-curve C START END LEN

Package

com.elbeno.curve

Source

modulate.lisp (file)

Function: trans-spline C START-PARAM END-PARAM LEN SAMPLER

Package

com.elbeno.curve

Source

modulate.lisp (file)

Function: transform-polyline C START-PARAM END-PARAM LEN SAMPLER

Package

com.elbeno.curve

Source

modulate.lisp (file)

Function: transform-spline C START-PARAM END-PARAM LEN SAMPLER

Package

com.elbeno.curve

Source

modulate.lisp (file)

Function: x-fracs PTLIST

Package

com.elbeno.curve

Source

modulate.lisp (file)

5.2.3 Generic functions

Generic Function: a OBJECT

Generic Function: (setf a) NEW-VALUE OBJECT

Package

com.elbeno.curve

Methods

Method: a (ELLIPSE ellipse)

automatically generated reader method

Source

classes.lisp (file)

Method: (setf a) NEW-VALUE (ELLIPSE ellipse)

automatically generated writer method

Source

classes.lisp (file)

Generic Function: b OBJECT

Generic Function: (setf b) NEW-VALUE OBJECT

Package

com.elbeno.curve

Methods

Method: b (ELLIPSE ellipse)

automatically generated reader method

Source

classes.lisp (file)

Method: (setf b) NEW-VALUE (ELLIPSE ellipse)

automatically generated writer method

Source

classes.lisp (file)

Generic Function: bezier-list OBJECT

Generic Function: (setf bezier-list) NEW-VALUE OBJECT

Package

com.elbeno.curve

Methods

Method: bezier-list (SPLINE spline)

automatically generated reader method

Source

classes.lisp (file)

Method: (setf bezier-list) NEW-VALUE (SPLINE spline)

automatically generated writer method

Source

classes.lisp (file)

Generic Function: center OBJECT

Generic Function: (setf center) NEW-VALUE OBJECT

Package

com.elbeno.curve

Methods

Method: center (CIRCLE circle)

automatically generated reader method

Source

classes.lisp (file)

Method: (setf center) NEW-VALUE (CIRCLE circle)

automatically generated writer method

Source

classes.lisp (file)

Method: center (ELLIPSE ellipse)

automatically generated reader method

Source

classes.lisp (file)

Method: (setf center) NEW-VALUE (ELLIPSE ellipse)

automatically generated writer method

Source

classes.lisp (file)

Generic Function: line-list OBJECT

Generic Function: (setf line-list) NEW-VALUE OBJECT

Package

com.elbeno.curve

Methods

Method: line-list (POLYLINE polyline)

automatically generated reader method

Source

classes.lisp (file)

Method: (setf line-list) NEW-VALUE (POLYLINE polyline)

automatically generated writer method

Source

classes.lisp (file)

Generic Function: make-length-sampler C N

Make a sampler function for the curve (by length) between 0 and 1. The expected number of samples is n.

Package

com.elbeno.curve

Source

sample.lisp (file)

Methods

Method: make-length-sampler (C curve) N

Method: make-length-sampler (C line) N

Method: make-length-sampler (C circle) N

Generic Function: make-param-sampler C

Make a sampler function for the curve parameterised between 0 and 1.

Package

com.elbeno.curve

Source

sample.lisp (file)

Methods

Method: make-param-sampler (C polyline)

Method: make-param-sampler (C line)

Method: make-param-sampler (C circle)

Method: make-param-sampler (C ellipse)

Method: make-param-sampler (C spline)

Method: make-param-sampler (C bezier)

Generic Function: o OBJECT

Generic Function: (setf o) NEW-VALUE OBJECT

Package

com.elbeno.curve

Methods

Method: o (ELLIPSE ellipse)

automatically generated reader method

Source

classes.lisp (file)

Method: (setf o) NEW-VALUE (ELLIPSE ellipse)

automatically generated writer method

Source

classes.lisp (file)

Generic Function: p0 OBJECT

Generic Function: (setf p0) NEW-VALUE OBJECT

Package

com.elbeno.curve

Methods

Method: p0 (LINE line)

automatically generated reader method

Source

classes.lisp (file)

Method: (setf p0) NEW-VALUE (LINE line)

automatically generated writer method

Source

classes.lisp (file)

Method: p0 (BEZIER bezier)

automatically generated reader method

Source

classes.lisp (file)

Method: (setf p0) NEW-VALUE (BEZIER bezier)

automatically generated writer method

Source

classes.lisp (file)

Generic Function: p1 OBJECT

Generic Function: (setf p1) NEW-VALUE OBJECT

Package

com.elbeno.curve

Methods

Method: p1 (LINE line)

automatically generated reader method

Source

classes.lisp (file)

Method: (setf p1) NEW-VALUE (LINE line)

automatically generated writer method

Source

classes.lisp (file)

Method: p1 (BEZIER bezier)

automatically generated reader method

Source

classes.lisp (file)

Method: (setf p1) NEW-VALUE (BEZIER bezier)

automatically generated writer method

Source

classes.lisp (file)

Generic Function: p2 OBJECT

Generic Function: (setf p2) NEW-VALUE OBJECT

Package

com.elbeno.curve

Methods

Method: p2 (BEZIER bezier)

automatically generated reader method

Source

classes.lisp (file)

Method: (setf p2) NEW-VALUE (BEZIER bezier)

automatically generated writer method

Source

classes.lisp (file)

Generic Function: p3 OBJECT

Generic Function: (setf p3) NEW-VALUE OBJECT

Package

com.elbeno.curve

Methods

Method: p3 (BEZIER bezier)

automatically generated reader method

Source

classes.lisp (file)

Method: (setf p3) NEW-VALUE (BEZIER bezier)

automatically generated writer method

Source

classes.lisp (file)

Generic Function: r OBJECT

Generic Function: (setf r) NEW-VALUE OBJECT

Package

com.elbeno.curve

Methods

Method: r (CIRCLE circle)

automatically generated reader method

Source

classes.lisp (file)

Method: (setf r) NEW-VALUE (CIRCLE circle)

automatically generated writer method

Source

classes.lisp (file)

Generic Function: transform-curve C START END LEN

Transform c given start point, end point, and length of segment.

Package

com.elbeno.curve

Source

modulate.lisp (file)

Methods

Method: transform-curve (C bezier) START END LEN

Method: transform-curve (C ellipse) START END LEN

Method: transform-curve (C line) START END LEN

Method: transform-curve (C circle) START END LEN

5.2.4 Classes

Class: curve ()

Package

com.elbeno.curve

Source

classes.lisp (file)

Direct superclasses

standard-object (class)

Direct subclasses

• bezier (class)
• spline (class)
• ellipse (class)
• circle (class)
• line (class)
• polyline (class)

Direct methods

• modulate (method)
• modulate (method)
• modulate (method)
• modulate (method)
• make-length-sampler (method)

Appendix A Indexes

A.1 Concepts

A.2 Functions

A.3 Variables

A.4 Data types