{{htmlmetatags>metatag-robots=()
metatag-title=(RASTER LINE | ugBASIC User Manual)
metatag-keywords=(ugBASIC,Commodore 64,Commodore PLUS/4,ZX Spectrum)
metatag-description=(Manual page for RASTER LINE)
metatag-media-og:image=(:ugbasic:logo-ugbasic-fb.png)
metatag-og:title=(RASTER LINE | ugBASIC User Manual) 
metatag-og:description=(Manual page for RASTER LINE)
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====== ugBASIC User Manual ======

===== RASTER LINE  =====

===== SYNTAX =====
     = RASTER LINE

==== PURPOSE ====

The ''RASTER LINE'' keyword gives the current raster line, or the
current vertical position of a raster beam. A raster beam is a beam 
of electrons or light that systematically scans an area, moving from 
left to right and top to bottom, like the lines that form an image 
on a cathode ray tube or CRT television. This movement creates a grid 
of points of light, called pixels, that together form the complete image.

Imagine painting a picture with a brush. The brush moves from left to 
right and then down a line, repeating this movement until the entire 
surface is covered. The brush in this case represents the raster beam.
The raster line indicates the vertical position of the raster beam 
at any given time. The values range of this position varies on the various
targets, and if a PAL or NTSC system is in use.

Having access to the the raster line can help optimize rendering, 
animation, and image processing algorithms. If you experience display 
problems, such as distorted lines or flickering images, analyzing 
raster lines can help pinpoint the cause. Many applications, such 
as video games and 3D graphics software, require precise control 
of the raster beam to create complex visual effects.



==== EXAMPLE ====
    randomScore = RASTER LINE


==== ABBREVIATION ====
   RstLn


==== AVAILABLE ON ====
  * Commodore 128 (MOS 8502)
  * Commodore 64
  * Commodore VIC-20
  * Atari (400/800)
  * Atari XL/XE
  * Commodore 64+REU
  * Commodore PLUS/4


==== ANY PROBLEM? ====
If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please [[https://github.com/spotlessmind1975/ugbasic/issues/new?title=ISSUE ON RASTER LINE|open an issue]] for this keyword on GitHub. Thank you!===== POWERED BY =====

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