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Ulm's Modula-2 Library:
Plot

NAME

Plot - graphics interface

SYNOPSIS

FROM StdIO IMPORT FILE;



PROCEDURE OpenPlot(f: FILE);
PROCEDURE ClosePlot;
PROCEDURE Move(xto, yto: INTEGER);
PROCEDURE Cont(xto, yto: INTEGER);
PROCEDURE Point(xpoint, ypoint: INTEGER);
PROCEDURE Line(xfrom, yfrom, xto, yto: INTEGER);
PROCEDURE String(str: ARRAY OF CHAR);
PROCEDURE Arc(xcenter, ycenter, xstart, ystart,
              xend, yend: INTEGER);
PROCEDURE Circle(xcenter, ycenter, radius: INTEGER);
PROCEDURE Erase;
PROCEDURE LineMod(style: ARRAY OF CHAR);
PROCEDURE Space(xupleft, yupleft,
                xlowright, ylowright: INTEGER);
PROCEDURE Reverse(xupleft, yupleft,
                  xlowright, ylowright: INTEGER);
PROCEDURE Polygon(xcenter, ycenter,
                  xstart, ystart, edges: INTEGER);
PROCEDURE CharMod(plotchar: CHAR);

DESCRIPTION

These subroutines generate graphic output in a relatively device-independent manner. See plot(4b) for a description of their effect. OpenPlot must be used before any of the others to open the device for writing. ClosePlot flushes the output.

DIAGNOSTICS

Plot prints `Plot: value out of bounds' and aborts if ABS(arg) is greater than 77777B for a given parameter arg.

SEE ALSO

plot(4b), plot(1b)
Edited by: borchert, last change: 1997/02/25, revision: 1.2, converted to HTML: 1997/04/28

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