Radio Shack CCR-81 Operation Manual

Computer Graphics
---------- TRS-BO ®
Operation Manual
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FORTRAN Routines
Routine
CIRCLE
CLS
GET
GPRINT
GRPINI
LINE
LINEB
LINEBF
LOCATE
PAINT
PAINTT
PRESET
PSET
PUT
SCREEN
SETXY
SETXYR
VIEW
Action
Draws a circle, are,
semicircle, or ellipse.
Clears the Graphics Screen.
Reads the contents of a rectangular
pixel area into an array.
Displays textual data on the
Graphics Scre,en.
Graphics initialization routine.
Draws a line.
Draws a box.
Draws a filled box.
Sets the direction for displaying
textual data on the Graphics
Screen.
Paints the screen in specified
OFF/ON color.
Paints the screen in a specified
pattern.
Sets pixel OFF/ON.
Sets pixel OFF/ON.
Puts the stored array on the
screen.
Selects the screen.
Sets (x,y) coordinates (absolute).
Sets (x,y) coordinates (relative).
Sets up a viewport where graphics
is displayed.
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Table 7
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FORTRAN Functions
Function
POINT
FVIEW
Action
Reads a pixel's value at a
specified coordinate.
Reads a viewport's parameters.
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Table 8
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Radio Shack CCR-81 Specifications

General

Brand	Radio Shack
Model	CCR-81
Category	Desktop
Language	English