Available on: all targets
See also: ELLIPSE

CIRCLE

The CIRCLE command in BASIC draws a circle on the screen. In other words, it defines a complete circle based on the coordinates and radius that you specify.

This command allows you to draw a circle with starting coordinates in (x,y) and radius r. The color is indicated by the parameter c. If the abscissa and/or ordinate is omitted, the last graphic position drawn will be used. In addition, the color can also be omitted and, if necessary, the last color set with the PEN or INK command will be used.

There is also another additional syntax, that can be used to draw ellipses: you can give both the radii rx and ry in the color determined by fq (see HIRES).

The accuracy of the circle depends on the resolution of your screen. Lower-resolution screens may display less sharp circles.

syntax example abbreviation back to keywords

SYNTAX

 CIRCLE [x], [y], r[, c]
 CIRCLE x, y, rx, ry[, c]


Legend
  • id : identifier
  • type : datatype
  • v : value
  • "..." : string
  • [...] : optional

EXAMPLE

 ' Draw a circle
 CIRCLE 100,100,42
 ' Draw an ellipse
 CIRCLE 100,100,21,42
 CIRCLE ,,21,RED


Used in:

ABBREVIATION: Ci

Join BASIC 10Liner Contest with ugBASIC!

An interesting competition is held at the beginning of each year: the BASIC 10Liner Contest. It is possible to use ugBASIC to participate in the next "BASIC10Liner" competition, in the following categories:

  • PUR-120 - A game in 10 lines of max 120 characters (w/abbrev.)
  • EXTREME-256 - A game in 10 lines of max 256 characters (w/abbrev.)
  • SCHAU - Any program in 10 lines of max 256 characters (w/abbrev.)
In order to reduce space you can use this abbreviation for this instruction: 

CIRCLE ↔ Ci

Any problem?

If you have found a problem with this keyword, if you think there is a bug or, more simply, you would like it to be improved, open an issue for this example on GitHub.
Thank you!

open an issue BACK TO KEYWORDS