Geometric Shapes is a

Unicode block A Unicode block is one of several contiguous ranges of numeric character codes (code points) of the Unicode character set that are defined by the Unicode Consortium for administrative and documentation purposes. Typically, proposals such as the ad ...

of 96 symbols at code point range U+25A0–25FF.

U+25A0–U+25CF

The BLACK CIRCLE is displayed when typing in a password field, in order to hide characters from a screen recorder or shoulder surfing.

U+25D0–U+25FF

The CIRCLE WITH LEFT HALF BLACK is used to represent the

contrast ratio The contrast ratio (CR) is a property of a display system, defined as the ratio of the luminance of the brightest shade (white) to that of the darkest shade (black) that the system is capable of producing. A high contrast ratio is a desired aspec ...

of a screen.

Font coverage

Font In metal typesetting, a font is a particular size, weight and style of a typeface. Each font is a matched set of type, with a piece (a "sort") for each glyph. A typeface consists of a range of such fonts that shared an overall design. In mod ...

sets like Code2000 and the

DejaVu The DejaVu fonts are a superfamily of fonts designed for broad coverage of the Unicode Universal Character Set. The fonts are derived from Bitstream Vera (sans-serif) and Bitstream Charter (serif), two fonts released by Bitstream under a fre ...

family include coverage for each of the glyphs in the Geometric Shapes range. Unifont also contains all the glyphs. Among the fonts in widespread use, full implementation is provided by Segoe UI Symbol and significant partial implementation of this range is provided by Arial Unicode MS and

Lucida Sans Unicode In digital typography, Lucida Sans Unicode OpenType font from the design studio of Bigelow & HolmesAll Bigelow & Holmes Lucida typefaces are distributed by the designers througThe Lucida Fonts Storeand a subset of Lucida fonts is distributed bAsc ...

, which include coverage for 83% (80 out of 96) and 82% (79 out of 96) of the symbols, respectively.

Block

Emoji

The Geometric Shapes block contains eight

emoji An emoji ( ; plural emoji or emojis) is a pictogram, logogram, ideogram or smiley embedded in text and used in electronic messages and web pages. The primary function of emoji is to fill in emotional cues otherwise missing from typed conversat ...

: U+25AA–U+25AB, U+25B6, U+25C0 and U+25FB–U+25FE. The block has sixteen standardized variants defined to specify emoji-style (U+FE0F VS16) or text presentation (U+FE0E VS15) for the eight emoji.

History

The following Unicode-related documents record the purpose and process of defining specific characters in the Geometric Shapes block:

References

{{Mathematical symbols notation language Unicode blocks Geometric shapes

Geometric Geometry (; ) is, with arithmetic, one of the oldest branches of mathematics. It is concerned with properties of space such as the distance, shape, size, and relative position of figures. A mathematician who works in the field of geometry is ca ...