Page 103 | Table of Contents | Index | Page 105 |

Chapters | |||

1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12,
13,
14,
15,
16,
17,
18,
19,
20,
21,
22,
23,
24,
25,
26,
27,
28,
29,
30A, B, C, D, E |

Draws either a filled or unfilled rectangle on the

coordinate axes of the native coordinate system. One corner of the rectangle is at the position

(

that are canonicalized in the same way as for

polygon*

The current line style (see Chapter 10) affects the drawing of unfilled rectangles in the obvious

way, except that the cap shape has no effect.

start-angle end-angle ink clipping-region transformation line-style line-thickness line-unit line-

dashes line-cap-shape

unit line-dashes line-cap-shape

These functions (structured and spread arguments, respectively) draw an ellipse (when

ellipse is the

Two vectors, (

allelogram of the ellipse as explained in Chapter 3. All of the radii are real numbers. If the two

vectors are collinear, the ellipse is not well-defined and the

will be signalled. The special case of an ellipse with its major axes aligned with the coordinate

axes can be obtained by setting both

Angles are measured with respect to the positive

(counter-clockwise) from

for

In the case of a "filled arc" (that is when

and are not 0 and 2), the figure drawn is the "pie slice" area swept out by a line from the

center of the ellipse to a point on the boundary as the boundary point moves from

When drawing unfilled ellipses, the current line style (see Chapter 10) affects the drawing in the

obvious way, except that the joint shape has no effect. Dashed elliptical arcs start "dashing" at

transformation line-style line-thickness line-unit line-dashes line-cap-shape

region transformation line-style line-thickness line-unit line-dashes line-cap-shape

These functions (structured and spread arguments, respectively) draw a circle (when

circle is

Page 103 | Table of Contents | Index | Page 105 |

Chapters | |||

1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12,
13,
14,
15,
16,
17,
18,
19,
20,
21,
22,
23,
24,
25,
26,
27,
28,
29,
30A, B, C, D, E |