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2.4. DRAWING A SIMPLE GRAPH 5gle -p test.gleThis will preview the output in the QGLE previewer window. GLE can also create PDF files. This isaccomplished by setting the output device to “pdf”.gle -device pdf test.gleTry viewing the resulting “test.pdf” with Acrobat Reader or similar. Other output formats supportedby GLE (eps, ps, pdf, svg, jpg, png, x11) can also be obtained with the -device command line option(which can be abbreviated to -d). For example, to create a JPEG bitmap file, one can use:gle -d jpg -r 200 test.gleHelp about the available command line options can be obtained with:gle -helpand to obtain more information about a particular option, use:gle -help optionThe following command line options are supported by GLE:-help-info-verbosity-device-resolution-fullpage-output-preview-gs-version-compatibility-calc-tex-inc-texincprefix-mkinittex-nocolor-transparent-noctrl-d-nomaxpath-safemode-allowread-allowwriteShows help about command line optionsOutputs software version, build date, GLE_TOP, GLE_BIN, etc.Sets the verbosity level of GLE console outputSelects output device(s)Sets the resolution for bitmap and PDF outputSelects full page outputSpecifies the name of the output filePreviews the output with QGLEPreviews the output with GhostScriptSelects a GLE version to runSelects a GLE compatibility modeRuns GLE in "calculator" modeIndicates that the script includes LaTeX expressionsCreates an .inc file with LaTeX codeAdds the given subdirectory to the path in the .inc fileCreates "inittex.ini" from "init.tex"Forces grayscale outputCreates transparent output (with -d png)Excludes CTRL-D from the PostScript outputDisables the upper-bound on the drawing path complexityDisables reading/writing to the file systemAllows reading from the given pathAllows writing to the given path2.4 Drawing a Simple GraphThis section shows how to go about drawing a simple graph. Enter the following data in a new file andsave it as “test.csv”. Note that you can export files in CSV (comma separated values) format with mostspread sheet programs.1,22,63,24,55,9The data is in two columns with a comma separating each column of numbers. The following commandswill draw a simple line graph of the data.
6 CHAPTER 2. TUTORIALsize 7 4begin graphtitle "Simple Graph"xtitle "Time"ytitle "Output"data "test.csv"d1 line marker triangle color redend graphOutput10Simple Graph864201.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0TimeThe commands title, xtitle, and ytitle specify the graph title and the axis titles. The command data loadsthe data file and the d1 command specifies how the first curve on the graph should look like. Thesecommands are discussed in detail in Chapter 4. Possible values for the marker option can be found onthe GLE wall reference chart in Appendix A.8.The axis ranges can be specified with “xaxis min v 0 max v 1 ” and “yaxis min v 0 max v 1 ”. A smooth line canbe drawn through the data points by changing the d1 command to: “d1 line smooth” as in the followingexample.size 7 4begin graphtitle "Smooth Graph"xtitle "Time"ytitle "Output"data "test.csv"yaxis min 0 max 10d1 line smooth color redend graphOutput10Smooth Graph864201.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0TimeNote that the order of the commands is not important, except that circle is a parameter for the optionmarker and therefore must come right after it. The same holds for line and smooth and color and blue inthe example “d1 marker circle line smooth color blue”.It is simple to change to a bar graph and include last year’s measurements:size 7 4begin graphtitle "Bar Graph"xtitle "Measurement"ytitle "Output"data "year-2000.csv"data "year-2001.csv"key pos tlbar d1,d2 fill red,blueend graphOutput1086420Year 2000Year 2001Bar Graph1 2 3 4 5MeasurementAdding min and max values on the axis commands is highly recommended because by default GLE won’tstart from the origin unless the data happens to be very close to zero. It is also difficult to comparegraphs unless they all have the same axis ranges. More information about the graph module is availablein Chapter 4.
Page 1: Professional Graphics LanguageProfe
Page 4 and 5: ivCONTENTS7.2.4 Import a GLE Figure
Page 6 and 7: 1• Chapter 4, The Graph Module:De
Page 8 and 9: Chapter 2Tutorial2.1 Installing GLE
Page 12 and 13: Chapter 3PrimitivesA GLE command is
Page 14 and 15: 3.2. GRAPHICS PRIMITIVES (IN DETAIL
Page 28 and 29: Chapter 4The Graph ModuleA graph sh
Page 30 and 31: 4.2. GRAPH COMMANDS (IN DETAIL) 25b
Page 32 and 33: 4.2. GRAPH COMMANDS (IN DETAIL) 271
Page 34 and 35: 4.2. GRAPH COMMANDS (IN DETAIL) 29M
Page 36 and 37: 4.2. GRAPH COMMANDS (IN DETAIL) 31a
Page 38 and 39: 4.2. GRAPH COMMANDS (IN DETAIL) 33x
Page 40 and 41: 4.2. GRAPH COMMANDS (IN DETAIL) 351
Page 42 and 43: 4.3. BAR GRAPHS 37Planet sizesNeptu
Page 44 and 45: 4.6. NOTES ON DRAWING GRAPHS 394.6
Page 46 and 47: Chapter 5The Key ModuleThe key modu
Page 48 and 49: 5.2. ENTRY DEFINITION COMMANDS 43ju
Page 50 and 51: 5.3. DEFINING THE KEY IN THE GRAPH
Page 52 and 53: Chapter 6Programming Facilities6.1
Page 54 and 55: 6.2. FUNCTIONS INSIDE EXPRESSIONS 4
Page 56 and 57: 6.5. IF-THEN-ELSE 51Besides for-nex
Page 58 and 59: 6.9. DEVICE DEPENDEND CONTROL 53fwr
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Chapter 7Advanced FeaturesThis chap
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7.1. DIAGRAMS 57GRVCheeseCHVGoatsMa
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7.2. L A TEX INTERFACE 59house.wind
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7.4. COLOUR 61size 10 5begin clip !
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Chapter 8Surface and Contour Plots8
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8.1. SURFACE PRIMITIVES 65ylines of
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8.2. LETZ 67zclip [min v1 ] [max v2
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8.5. COLOR MAPS 69• pixels-x, pix
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Chapter 9GLE Utilities9.1 FitlsThe
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9.2. MANIP 73c1 == c1c1r1r10 == 1,1
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9.2. MANIP 75BLANK"% BLANK C2C3" Cl
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9.2. MANIP 77PARSUM [range1] [range
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Appendix ATablesA.1 Markerstriangle
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A.2. FUNCTIONS AND VARIABLES 81widt
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A.4. INSTALLING GLE 83A.4 Installin
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A.6. FONT TABLES 85Typewriter (tt)0
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A.6. FONT TABLES 87TEXComputer Mode
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A.6. FONT TABLES 89PostScript Helve
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A.6. FONT TABLES 91(psbl)0246810121
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A.6. FONT TABLES 93PostScript ZapfC
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A.7. PREDEFINED COLORS 95GLE suppor
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Index!, 8, 25\expr(exp), 80.z file,
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INDEX 99histogram, 30horiz, 37horiz
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INDEX 101under, 32underneath, 66Uni
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