CS 3723 Paths and Clipping

CS 3723/3721
Programming Languages

Paths and Clipping
(+ Colors)

Examples Using Paths and Clipping Paths: Examples 4 through Example 11 below give increasingly complex pictures using clipping paths.

Paths and Clipping Paths
%!PS-Adobe-2.0 % Example 1 /Mulberry {0.34 0.90 0 0.02 setcmykcolor} def /oneline { 0 0 moveto 450 0 lineto stroke } def /lines { gsave oneline 180 {1 rotate oneline} repeat grestore } def 200 100 translate 1 setlinewidth lines showpage	%!PS-Adobe-2.0 % Example 2 /Mulberry {0.34 0.90 0 0.02 setcmykcolor} def /circle { newpath 0 0 100 0 360 arc closepath } def 200 200 translate Mulberry circle fill 0 setgray 2 setlinewidth circle stroke showpage
%!PS-Adobe-2.0 % Example 3 /Mulberry {0.34 0.90 0 0.02 setcmykcolor} def /oneline { 0 0 moveto 450 0 lineto stroke } def /lines { gsave oneline 180 {1 rotate oneline} repeat grestore } def /circle { newpath 0 100 100 0 360 arc closepath } def 200 100 translate Mulberry circle fill 0 setgray 2 setlinewidth circle stroke 1 setlinewidth lines showpage	%!PS-Adobe-2.0 % Example 4 /oneline { 0 0 moveto 450 0 lineto stroke } def /lines { gsave oneline 180 {1 rotate oneline} repeat grestore } def /circle { newpath 0 100 100 0 360 arc closepath } def 200 100 translate Mulberry circle fill 0 setgray 2 setlinewidth circle stroke circle clip 1 setlinewidth lines showpage
%!PS-Adobe-2.0 % Example 5 /Mulberry {0.34 0.90 0 0.02 setcmykcolor} def /oneline { 0 0 moveto 550 0 lineto stroke } def /lines { gsave oneline 180 {1 rotate oneline} repeat grestore } def /path { /Times-Bold findfont 250 scalefont setfont newpath 0 0 moveto (ABC) false charpath } def 50 100 translate Mulberry path fill 0 setgray 2 setlinewidth path stroke path clip 1 setlinewidth lines showpage	%!PS-Adobe-2.0 % Example 6 % Some colors /Apricot{0 0.32 0.52 0 setcmykcolor} def /OliveGreen{0.64 0 0.95 0.40 setcmykcolor} def /GreenYellow{0.15 0 0.69 0 setcmykcolor} def /RedViolet{0.07 0.90 0 0.34 setcmykcolor} def /Times-Bold findfont 80 scalefont setfont /background { newpath 0 0 moveto 1000 0 lineto 1000 1000 lineto 0 1000 lineto closepath } def /pl { 50 200 moveto (Programming) show 50 100 moveto (Languages) show } def /circle { newpath 250 175 130 0 360 arc closepath } def Apricot background fill OliveGreen pl circle clip GreenYellow background fill RedViolet pl showpage % Example 6.1 % with the line "circle clip" commented out
%!PS-Adobe-2.0 % Example 7 /Apricot{0 0.32 0.52 0 setcmykcolor} def /OliveGreen{0.64 0 0.95 0.40 setcmykcolor} def /GreenYellow{0.15 0 0.69 0 setcmykcolor} def /RedViolet{0.07 0.90 0 0.34 setcmykcolor} def /Times-Bold findfont 80 scalefont setfont /background { newpath 0 0 moveto 1000 0 lineto 1000 1000 lineto 0 1000 lineto closepath } def /pl { 50 200 moveto (Programming) show 50 100 moveto (Languages) show } def /circles { newpath 435 50 2 div add 230 50 2 div add moveto 435 230 50 0 360 arc 250 130 2 div add 175 130 2 div add moveto 250 175 130 0 360 arc 230 60 2 div add 155 602 2 div add moveto 230 155 60 0 360 arc closepath } def Apricot background fill OliveGreen pl circles eoclip % even-odd clipping algorithm GreenYellow background fill RedViolet pl showpage Example 9 Example 10 Example 11	%!PS-Adobe-2.0 % Example 8 /Apricot{0 0.32 0.52 0 setcmykcolor} def /OliveGreen{0.64 0 0.95 0.40 setcmykcolor} def /GreenYellow{0.15 0 0.69 0 setcmykcolor} def /RedViolet{0.07 0.90 0 0.34 setcmykcolor} def /Times-Bold findfont 110 scalefont setfont /background { newpath 0 0 moveto 1000 0 lineto 1000 1000 lineto 0 1000 lineto closepath } def /pl { 50 200 moveto (Programming) show 50 100 moveto (Languages) show } def /circlepath { % stack: x y r /r exch def /y exch def /x exch def x r 2 div add y r 2 div add moveto x y r 0 360 arc } def /circles { newpath 500 230 65 circlepath 250 175 130 circlepath 230 155 60 circlepath 475 160 65 circlepath closepath } def /everything { Apricot background fill OliveGreen pl circles eoclip % even-odd clipping algorithm GreenYellow background fill RedViolet pl } def % below to keep vert. alignment, < 5 no good 5 { 1000 1000 moveto (abcdefgh) show} repeat 90 rotate 0 -612 translate everything showpage

Examples of Colors: In alphabetic order by name, but random order as far as the type of color.

List of Colors

/Apricot{0 0.32 0.52 0 setcmykcolor} def
/Aquamarine{0.82 0 0.30 0 setcmykcolor} def
/Bittersweet{0 0.75 1 0.24 setcmykcolor} def
/Black{0 0 0 1 setcmykcolor} def
/Blue{1 1 0 0 setcmykcolor} def
/BlueGreen{0.85 0 0.33 0 setcmykcolor} def
/BlueViolet{0.86 0.91 0 0.04 setcmykcolor} def
/BrickRed{0 0.89 0.94 0.28 setcmykcolor} def
/Brown{0 0.81 1 0.60 setcmykcolor} def
/BurntOrange{0 0.51 1 0 setcmykcolor} def
/CadetBlue{0.62 0.57 0.23 0 setcmykcolor} def
/CarnationPink{0 0.63 0 0 setcmykcolor} def
/Cerulean{0.94 0.11 0 0 setcmykcolor} def
/CornflowerBlue{0.65 0.13 0 0 setcmykcolor} def
/Cyan{1 0 0 0 setcmykcolor} def
/Dandelion{0 0.29 0.84 0 setcmykcolor} def
/DarkOrchid{0.40 0.80 0.20 0 setcmykcolor} def
/Emerald{1 0 0.50 0 setcmykcolor} def
/ForestGreen{0.91 0 0.88 0.12 setcmykcolor} def
/Fuchsia{0.47 0.91 0 0.08 setcmykcolor} def
/Goldenrod{0 0.10 0.84 0 setcmykcolor} def
/Gray{0 0 0 0.50 setcmykcolor} def
/Green{1 0 1 0 setcmykcolor} def
/GreenYellow{0.15 0 0.69 0 setcmykcolor} def
/JungleGreen{0.99 0 0.52 0 setcmykcolor} def
/Lavender{0 0.48 0 0 setcmykcolor} def
/LimeGreen{0.50 0 1 0 setcmykcolor} def
/Magenta{0 1 0 0 setcmykcolor} def
/Mahogany{0 0.85 0.87 0.35 setcmykcolor} def
/Maroon{0 0.87 0.68 0.32 setcmykcolor} def
/Melon{0 0.46 0.50 0 setcmykcolor} def
/MidnightBlue{0.98 0.13 0 0.43 setcmykcolor} def
/Mulberry{0.34 0.90 0 0.02 setcmykcolor} def
/NavyBlue{0.94 0.54 0 0 setcmykcolor} def

/OliveGreen{0.64 0 0.95 0.40 setcmykcolor} def
/Orange{0 0.61 0.87 0 setcmykcolor} def
/OrangeRed{0 1 0.50 0 setcmykcolor} def
/Orchid{0.32 0.64 0 0 setcmykcolor} def
/Peach{0 0.50 0.70 0 setcmykcolor} def
/Periwinkle{0.57 0.55 0 0 setcmykcolor} def
/PineGreen{0.92 0 0.59 0.25 setcmykcolor} def
/Plum{0.50 1 0 0 setcmykcolor} def
/ProcessBlue{0.96 0 0 0 setcmykcolor} def
/Purple{0.45 0.86 0 0 setcmykcolor} def
/RawSienna{0 0.72 1 0.45 setcmykcolor} def
/Red{0 1 1 0 setcmykcolor} def
/RedOrange{0 0.77 0.87 0 setcmykcolor} def
/RedViolet{0.07 0.90 0 0.34 setcmykcolor} def
/Rhodamine{0 0.82 0 0 setcmykcolor} def
/RoyalBlue{1 0.50 0 0 setcmykcolor} def
/RoyalPurple{0.75 0.90 0 0 setcmykcolor} def
/RubineRed{0 1 0.13 0 setcmykcolor} def
/Salmon{0 0.53 0.38 0 setcmykcolor} def
/SeaGreen{0.69 0 0.50 0 setcmykcolor} def
/Sepia{0 0.83 1 0.70 setcmykcolor} def
/SkyBlue{0.62 0 0.12 0 setcmykcolor} def
/SpringGreen{0.26 0 0.76 0 setcmykcolor} def
/Tan{0.14 0.42 0.56 0 setcmykcolor} def
/TealBlue{0.86 0 0.34 0.02 setcmykcolor} def
/Thistle{0.12 0.59 0 0 setcmykcolor} def
/Turquoise{0.85 0 0.20 0 setcmykcolor} def
/Violet{0.79 0.88 0 0 setcmykcolor} def
/VioletRed{0 0.81 0 0 setcmykcolor} def
/White{0 0 0 0 setcmykcolor} def
/WildStrawberry{0 0.96 0.39 0 setcmykcolor} def
/Yellow{0 0 1 0 setcmykcolor} def
/YellowGreen{0.44 0 0.74 0 setcmykcolor} def
/YellowOrange{0 0.42 1 0 setcmykcolor} def

Display of Each Color Above:

Click Image for PDF, or click link for larger image (.png)

(Revision date: 2014-04-12. Please use ISO 8601, the International Standard.)