Vector graphics - Revision history

Jnc: +cat

2018-12-13T15:22:04Z

+cat

Jnc: rm dup link

2018-11-09T13:43:07Z

rm dup link

Jnc: Better def

2018-11-09T13:40:19Z

Better def

Jnc: Proper cat, +links

2018-10-21T20:26:40Z

Proper cat, +links

Jnc: mention strokes

2018-09-16T17:34:42Z

mention strokes

Jnc: A decent start

2018-09-15T21:12:20Z

A decent start

New page

'''Vector graphics''' was the technology used in the first generation of [[video display]]s (which all used [[cathode ray tube|CRT]]'s for their [[display]]s).

At that time, memory was still quite expensive per [[bit]], so the [[bit-mapped display]] approach was economically infeasible. Instead, the video display used a [[display program]], which was a list of commands to the [[hardware]] of the display (often stored in memory).

The commands were to do things like display lines, points, etc, at locations specified by the command; the command might also include attributes, thinge like dashed lines, bold, etc. The display processor converted these to [[voltage]]s sent to the beam controls of the CRT, to draw the needed strokes.

Some graphics units included a [[character generator]], so the commands might include text displays. (Although characters could be drawn using display commands, using a character generator saved commands, which might be limited in total number.)

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← Older revision		Revision as of 15:22, 13 December 2018
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		+	[[Category: Device Basics‎‎]]

← Older revision		Revision as of 13:43, 9 November 2018
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−	'''Vector graphics''' was the technology used in the first generation of [[graphics]] [[display]]s, all [[video display]]s (which all used [[cathode ray tube\|CRT]]'s for their ~~[[display]]s~~).	+	'''Vector graphics''' was the technology used in the first generation of [[graphics]] [[display]]s, all [[video display]]s (which all used [[cathode ray tube\|CRT]]'s for their displays).

	At that time, [[memory]] was still quite expensive per [[bit]], so the [[bit-mapped display]] approach was economically infeasible. Instead, the video display used a [[display program]], which was a list of commands to the [[hardware]] of the display (often stored in [[main memory]]).		At that time, [[memory]] was still quite expensive per [[bit]], so the [[bit-mapped display]] approach was economically infeasible. Instead, the video display used a [[display program]], which was a list of commands to the [[hardware]] of the display (often stored in [[main memory]]).

← Older revision		Revision as of 13:40, 9 November 2018
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−	'''Vector graphics''' was the technology used in the first generation of [[video display]]s (which all used [[cathode ray tube\|CRT]]'s for their [[display]]s).	+	'''Vector graphics''' was the technology used in the first generation of [[graphics]] [[display]]s, all [[video display]]s (which all used [[cathode ray tube\|CRT]]'s for their [[display]]s).

	At that time, [[memory]] was still quite expensive per [[bit]], so the [[bit-mapped display]] approach was economically infeasible. Instead, the video display used a [[display program]], which was a list of commands to the [[hardware]] of the display (often stored in [[main memory]]).		At that time, [[memory]] was still quite expensive per [[bit]], so the [[bit-mapped display]] approach was economically infeasible. Instead, the video display used a [[display program]], which was a list of commands to the [[hardware]] of the display (often stored in [[main memory]]).

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 '''Vector graphics''' was the technology used in the first generation of [[video display]]s (which all used [[cathode ray tube|CRT]]'s for their [[display]]s).
-At that time, memory was still quite expensive per [[bit]], so the [[bit-mapped display]] approach was economically infeasible. Instead, the video display used a [[display program]], which was a list of commands to the [[hardware]] of the display (often stored in memory).
+At that time, [[memory]] was still quite expensive per [[bit]], so the [[bit-mapped display]] approach was economically infeasible. Instead, the video display used a [[display program]], which was a list of commands to the [[hardware]] of the display (often stored in [[main memory]]).
-The commands were to do things like display lines (often called 'strokes'), points, etc, at arbitrary locations (and angles, for the lines) specified by the command(s). The commands might also include attributes; things like dashed lines, bold, etc. The display processor converted the commands to [[voltage]]s sent to the beam controls of the CRT (both location and intensity), to draw the needed strokes/etc.
+The commands were to do things like display lines (often called 'strokes'), points, etc, at arbitrary locations (and angles, for the lines) specified by the command(s). The commands might also include attributes; things like dashed lines, bold, etc. The [[display processor]] converted the commands to [[voltage]]s sent to the beam controls of the CRT (both location and intensity), to draw the needed strokes/etc.
 Some graphics units included a [[character generator]], so the commands might include text displays. (Although characters could be drawn using display commands, using a character generator saved commands, which might be limited in total number.)
-{{stub}}
+{{semi-stub}}