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 ...
of 96 symbols at code point range U+25A0–25FF.
U+25A0–U+25CF
The BLACK CIRCLE is displayed when typing in a
password
A password, sometimes called a passcode (for example in Apple devices), is secret data, typically a string of characters, usually used to confirm a user's identity. Traditionally, passwords were expected to be memorized, but the large number of ...
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 of a screen.
Font coverage
Font sets like
Code2000
Code2000 is a serif and pan- Unicode digital font, which includes characters and symbols from a very large range of writing systems. As of the current final version 1.171 released in 2008, Code2000 is designed and implemented by James Kass t ...
and the
DejaVu family include coverage for each of the glyphs in the Geometric Shapes range.
Unifont
GNU Unifont is a free Unicode bitmap font using an intermediate bitmapped font format created by Roman Czyborra. The main Unifont covers all of the Basic Multilingual Plane (BMP). The "upper" companion covers significant parts of the Supplement ...
also contains all the glyphs. Among the fonts in widespread use, full implementation is provided by
Segoe UI Symbol
Segoe ( ) is a typeface, or family of fonts, that is best known for its use by Microsoft. The company uses Segoe in its online and printed marketing materials, including recent logos for a number of products. Additionally, the Segoe UI font su ...
and significant partial implementation of this range is provided by
Arial Unicode MS
In digital typography, the TrueType font Arial Unicode MS is an extended version of the font Arial. Compared to Arial, it includes higher line height, omits kerning pairs and adds enough glyphs to cover a large subset of Unicode 2.1—thus suppo ...
and
Lucida Sans Unicode, 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:
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:
See also
*
Unicode symbols
In computing, a Unicode symbol is a Unicode character which is not part of a script used to write a natural language, but is nonetheless available for use as part of a text.
Many of the symbols are drawn from existing character sets or ISO/IEC or ...
*
Dingbat
In typography, a dingbat (sometimes more formally known as a printer's ornament or printer's character) is an ornament, specifically, a glyph used in typesetting, often employed to create box frames, (similar to box-drawing characters) or as ...
*
Box Drawing (Unicode block)
Box Drawing is a Unicode block containing characters for compatibility with legacy graphics standards that contained characters for making bordered charts and tables, i.e. box-drawing characters. Its block name in Unicode 1.0 was Form and Chart ...
*
Block Elements (Unicode block)
Block Elements is a Unicode block containing square block symbols of various fill and shading. Used along with block elements are box-drawing characters, shade characters, and terminal graphic characters. These can be used for filling regions of th ...
*
Box-drawing character
Box-drawing characters, also known as line-drawing characters, are a form of semigraphics widely used in text user interfaces to draw various geometric frames and boxes. Box-drawing characters typically only work well with monospaced fonts. ...
*
Tombstone (typography)
In mathematics, the tombstone, halmos, end-of-proof, or Q.E.D. symbol "∎" (or "□") is a symbol used to denote the end of a proof, in place of the traditional abbreviation "Q.E.D." for the Latin phrase "''quod erat demonstrandum''". It is ins ...
, the end of proof character
*
Geometric Shapes Extended (Unicode block)
Geometric Shapes Extended is a Unicode block containing Webdings/Wingdings symbols, mostly different weights of squares, crosses, and saltires, and different weights of variously spoked asterisks, stars, and various color squares and circles for ...
*
Miscellaneous Symbols and Arrows (Unicode block) includes more geometric shapes
*
Miscellaneous Symbols and Pictographs (Unicode block)
Miscellaneous Symbols and Pictographs is a Unicode block containing meteorological and astronomical symbols, emoji characters largely for compatibility with Japanese telephone carriers' implementations of Shift JIS, and characters originally from ...
includes several geometric shapes of different colors
*
Mathematical operators and symbols in Unicode
The Unicode Standard encodes almost all standard characters used in mathematics.
Unicode Technical Report #25 provides comprehensive information about the character repertoire, their properties, and guidelines for implementation.
Mathematical op ...
References
{{Mathematical symbols notation language
Unicode blocks
Geometric shapes
Geometric