Arcs and Circles

These are the methods for creating and using arcs and circles in PDF graphics.

FigureMaker methods

append_arc_to_path(xstart, ystart, xcorner, ycorner, xend, yend, dx, dy) [ doc | example ]

Like adding lines from start to corner to end, but with the
corner rounded with a radius equal to the minimum of the
actual output distances for `dx` and `dy`.

Example

The illustration shows in dark blue the arc that is added for the control points given in red.

append_circle_to_path(x, y, r) [ doc ]

Create a circle with center at (`x`, `y`) having radius `r`
(given in x units).

append_oval_to_path(x, y, dx, dy, angle) [ doc ]

Equivalent to the following: create a unit circle with center
at (`x`, `y`), scale it by `dx` in the x direction, scale it
by `dy` in the y direction, then rotate it counter-clockwise
by `angle` degrees.

clip_circle(x, y, r) [ doc ]

Calls `append_circle_to_path()` followed by `clip()`.

clip_oval(x, y, dx, dy, angle) [ doc ]

Calls `append_oval_to_path()` followed by `clip()`.

fill_and_stroke_circle(x, y, r) [ doc ]

Calls `append_circle_to_path()` followed by `fill_and_stroke()`.

fill_and_stroke_oval(x, y, dx, dy, angle) [ doc ]

Calls `append_oval_to_path()` followed by `fill_and_stroke()`.

fill_circle(x, y, r) [ doc ]

Calls `append_circle_to_path()` followed by `fill()`.

fill_oval(x, y, dx, dy, angle) [ doc ]

Calls `append_oval_to_path()` followed by `fill()`.

stroke_circle(x, y, r) [ doc ]

Calls `append_circle_to_path()` followed by `stroke()`.

stroke_oval(x, y, dx, dy, angle) [ doc ]

Calls `append_oval_to_path()` followed by `stroke()`.

FigureMaker attributes

PyTioga version: alpha (20071021)