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%!PS-Adobe-2.0
%%DocumentFonts: Times-Roman
%%Creator: Axiom
%%CreationDate: today
%%Pages: 1
%%processing (hard) limit: 250 pts or 500 values for the operand stack.
%%EndComments
%------------------------------- prologue -------------------------------%
%-------------------------- support procedures --------------------------%
%--------- first create user dictionary with 100 entries max ------------%
% (number can be changed to accomodate definitions) %
100 dict begin %% using 100 entries in top level dictionary
/FontHeight 12 def
/inch
{ 72 mul }
def
% yVal and hVal are necessary because the Xwindow display origin
% is at the upper left corner, while the postscript display
% origin is at the lower left hand corner.
/yVal %% get Y value -- make upper left corner origin
{ maxY sub abs } %% maxY is viewWindow height
def
/hVal %% get H value -- used for displaying title text
{ maxH sub abs } %% maxH is viewWindow height+titleWindow height
def
% loads in the font
/loadFont
{ /Times-Roman findfont FontHeight scalefont setfont }
def
% draws a rectangle with input operand:
% height
% width
% notice that this function does not "draw" or ink the rectangle.
/drawRect
{ 1 index 1 add 0 rlineto %% draw first side
0 exch 1 add neg rlineto %% draw second side
1 add neg 0 rlineto %% draw third side
closepath } %% draw fourth side
def
% create a rectangle with input operand in the view window:
% y
% x
% height
% width
% notice that this function does not "draw" or ink the rectangle.
/rectangle
{ yVal moveto %% set currentpoint for line
drawRect } %% draws the rectangle
def
% These are global variables that every draw procedure uses
% THe operand should be as follows:
% viewWindow width
% viewWindow height
% title height
/setDim
{ /maxX exch def %% width of display
/maxY exch def %% height of display
/titleH exch def %% height of title
/maxH maxY titleH add def %% height of display + title
} def
%-------------------------- major procedures --------------------------%
/title %% draws a rectangle around the title of picture
{ gsave
newpath
moveto %% lower left of title
titleH 1 add 0 exch rlineto %% draw first side
1 add 0 rlineto %% draw second side
1 add neg 0 exch rlineto
begin installGC stroke end %% draw third side
grestore }
def
/drawFrame %% draw display frame
{ gsave
newpath
maxX maxY 0 0 rectangle
begin installGC stroke end
grestore }
def
% updates the foreground color of existing graphics-context dictionary:
% foreground color
% dictionary name
/setForeground
{ /FGcolor exch put }
def
% updates the background color of existing graphics-context dictionary:
% background color
% dictionary name
/setBackground
{ /BGcolor exch put }
def
% updates the line width, line style, cap style, join style of
% existing graphics-context dictionary:
% dictionary name
% join style
% cap style
% line width
/setLineAttributes
{ begin
/JoinStyle exch def
/CapStyle exch def
/LineWidth exch def
end }
def
% creates a graphics context dictionary with the following information:
% /dictionary name
% foreground color
% background color
% line width
% cap style
% join style
% this creates different graphical contexts for different drawing functions.
/makeDict
{ 5 dict 2 copy def begin pop %% with dict name on top of stack
/FGcolor exch def %% define drawing attributes
/BGcolor exch def %% not heavily used
/LineWidth exch def
/CapStyle exch def
/JoinStyle exch def
end }
def
% makes the current dictionary attributes effective
% this function takes the values in the current dictionary to set the context
% these are the values currently being used: foreground, cap, join, and width
/installGC
{
FGcolor currentgray ne
{FGcolor setgray} if %% foreground color
CapStyle currentlinecap ne
{CapStyle setlinecap} if %% cap style
JoinStyle currentlinejoin ne
{JoinStyle setlinejoin} if %% join style
LineWidth currentlinewidth ne
{LineWidth setlinewidth} if } %% line width
def
% operand stack configuration in order to use psDrawLine:
% psDrawLine
% y0
% x0
% y1
% x1
% graphics-context dictionary
% this draws a line from (x0, y0) to (x1, y1).
/psDrawLine
{ gsave
newpath
yVal moveto
yVal lineto
begin installGC stroke end
grestore }
def
% operand stack configuration in order to use psDrawStr:
% psDrawStr
% y
% x
% string
% graphics-context dictionary
% this function draws a text string at (x,y).
/psDrawStr
{ gsave
newpath
loadFont
yVal moveto
exch begin installGC show end
grestore }
def
%-------------------------- script --------------------------%
% 1 inch 1 inch translate
mark %% mark bottom of our stack
0 0 1
1072693248 0 /globalGC1 makeDict
0 0 1
1072693248 0 /globalGC2 makeDict
0 0 1
1072693248 0 /trashGC makeDict
0 0 1
1072693248 0 /componentGC makeDict
0 0 1
1072693248 0 /opaqueGC makeDict
0 0 1
1072693248 0 /renderGC makeDict
0 0 1
1072693248 0 /globGC makeDict
0 0 1
1072693248 0 /anotherGC makeDict
1 0 1
1072693248 0 /renderGC makeDict
gsave % save graphics state for clipping path
1.000000 1.000000 scale
24 276 300 setDim
maxX maxY 0 0 rectangle clip % set clip path
globalGC1 0.000000 setForeground
globGC 0.000000 setForeground
globalGC1 47 213 234 84 psDrawLine
globGC (X) 42 218 psDrawStr
globalGC1 106.000000 setForeground
globGC 106.000000 setForeground
globalGC1 0.000000 setForeground
globGC 0.000000 setForeground
globalGC1 252 213 65 84 psDrawLine
globGC (Y) 257 218 psDrawStr
globalGC1 106.000000 setForeground
globGC 106.000000 setForeground
globalGC1 0.000000 setForeground
globGC 0.000000 setForeground
globalGC1 150 32 150 225 psDrawLine
globGC (Z) 155 27 psDrawStr
globalGC1 106.000000 setForeground
globGC 106.000000 setForeground
1 0 0 componentGC setLineAttributes
componentGC 0.000000 setForeground
componentGC 0.000000 setForeground
componentGC 150 182 150 142 psDrawLine
componentGC 0.000000 setForeground
componentGC 155 171 150 182 psDrawLine
componentGC 0.000000 setForeground
componentGC 144 171 150 182 psDrawLine
grestore % restore graphics state
cleartomark %% clearing operand stack
end %% pops mainDict from dictionary stack
showpage
%-------------------------- end --------------------------%
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