{
Sample SUBMIT File for Compiling this program with the libraries
XYPLOT, TRANCEND, FPREALS, and PASLIB --
mtplus xydemo $$oa ea v
linkmt xydemo,xyplot,a:trancend,a:fpreals,a:paslib/s
}
type
rarray = array [1..200] of real;
str = string[20];
var
i : integer;
theta, r : real;
x, y : rarray;
dev : str;
external function xyplot (dev1 : str; ndata, nsx, nsy, nnp : integer;
x, y : rarray) : integer;
begin { Test }
writeln('XYDEMO: Demo Program of XYPLOT Subroutine');
writeln('Output Device Options are:');
writeln(' CON: = Console');
writeln(' LST: = Printer');
writeln(' <File> = Disk File, Like P.PLT or A:P');
write ('Option -- '); readln(dev);
writeln('XYDEMO: Computing --');
for i:=1 to 90 do begin
write('.');
if (i mod 45) = 0 then writeln;
theta := (i-1) * 4 * 3.14159 / 180;
r := cos (2 * theta);
x[i] := r * 50 * cos(theta);
y[i] := r * 50 * sin(theta);
end;
writeln('XYDEMO: Plotting --');
if 0 <> xyplot (dev, 90, 50, 50, 100, x, y) then
writeln('XYDEMO: Error in Outputting File');
writeln('XYDEMO: Test Complete');
end.
