home *** CD-ROM | disk | FTP | other *** search
- program xydemo; { Demo of XYPLOT }
-
- {
- 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.
-