COMMENT ⊗   VALID 00002 PAGES
C REC  PAGE   DESCRIPTION
C00001 00001
C00002 00002	%This will produce all major reference points
C00004 ENDMK
C⊗;
%This will produce all major reference points
input engsha;

cpen;
w2=2;
w3=6;
w3 draw 1;
w2 draw 2;
w3 draw 3;
w2 draw 4;
w2 draw 5;

w3 draw 6;
w2 draw 7;
w2 draw 8;
w2 draw 9;
w2 draw 10;
w3 draw 11;
w2 draw 12;

w2 draw 13;
w2 draw 14;
w2 draw 15;
w2 draw 16;
w2 draw 17;
w3 draw 18;
w2 draw 19;
w2 draw 20;

w2 draw 21;
w2 draw 22;
w2 draw 23;
w2 draw 24;
w2 draw 25;

%This will produce reference lines
1 draw 1..6;
1 draw 11..18;
1 draw 3..11;
1 draw 6..18;
% Enlarged grid has to contain the following horizontal lines
% draw 49 .. 29 cannot be represented on the screen
3 draw 48 .. 30;w2 draw 39;
1 draw 47 .. 31;
3 draw 46 .. 32;
1 draw 45 .. 33;
3 draw 26 .. 34;
1 draw 27 .. 35;
3 draw 28 .. 36;
1 draw 50 .. 53;
% and also the following vertical lines
1 draw 48 .. 28;
3 draw  1 .. 43;
3 draw 39 .. 42;
1 draw 30 .. 36;