JHU/APL/S1R usr Library

The following is a listing of the entire contents of this library for IDL. Click on an individual procedure name to view its header and source code. This listing is a shortened form of the much longer entire library help file. This may be handy for text searchs, be beware that some of these are huge and may take a long time to load or even crash your browser.

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List of Routines

• ADD_MARGIN Add space to left margin and top of a text file.
• ALIGN Vector text justification (positioning).
• ANIMALS Return a string array of animals.
• APODIZE Weighting array for apodizing an image. Cosine taper.
• ARCS Plot specified arcs or circles on the current plot device.
• ARROW Draw arrows on screen.
• ARROW2 Draw arrows on screen.
• AXVAL Find nice axis values.
• BASECON Convert a number from one base to another.
• BELL Ring terminal bell.
• BEST_FFT Attempts to find size of fastest FFT from given choices.
• BINBOUND For binary image return array with boundary points set to 1.
• BLEND Sets up weighting array for blending arrays together.
• BOX1 Single mouse button interactive box on image display.
• BOX2B Simple two mouse button interactive box on image display.
• BOXAREA Select an area with a box.
• BOX_SIZE Used by MOVBOX to change box size using the cursor.
• BYT2STRARR Unpack a string array from a byte array
• BYTARR_GET Extract a byte array from a byte buffer.
• BYTARR_PUT Insert a byte array into a byte buffer.
• CBAR Make a color bar.
• CED1 Simple widget to edit a single color table entry.
• CGM Toggles graphics redirection to a *.cgm file on or off.
• CHECK5 Check if running IDL version 5 or greater.
• CHECKER Return a checker board pattern array of 0 and 1.
• CHINIT Initializes chart setup. Good for viewgraphs.
• CLR_SCALE Clear image scaling values embedded by put_scale.
• CM2NORM Convert from cm to normalized coordinates.
• COLOR Set a color in the color table by specifying color name.
• COLORWARN Warn if available IDL colors too few.
• COLOR_QUANJ Combines Red, Green, Blue components into a color image.
• COMMALIST Return a given array as a comma delimited text list.
• CONCOORD Convert between two linear coordinate systems.
• CONGRID2 Alternate (and limited) congrid using interpolate.
• CONGRID8C Do 24 bit congrid interpolation on 8 bit color image.
• CONVERT_IND Convert a text description of runs of indices to numbers.
• CONVEXHULL Return the convex hull of a polygon.
• COSFILT Cosine tapered weighting array to use for FFT filtering.
• COSTAP Cosine taper weighting from 1 at center to 0 at ends.
• CREATED Return file creation host, user, and time stamp or tag.
• CROSSI Interactive cross-hair cursor on screen or plot.
• CROSSI2 Interactive cross-hair cursor on screen or plot.
• CSPEC Compute ensemble averaged frequency spectrum of complex data.
• CTINT Interpolate between two color table entries.
• CTOOL Modify a color table using widgets.
• CTRIM Do a circular trim on an array.
• CUMULATE Array with the cumulative sum of an array. Integrate.
• CYPH Construct a cycle/phase array from time series data.
• D2DMS Function to convert from degrees to deg, min, sec.
• DATATYPE Datatype of variable as a string (3 char or spelled out).
• DATA_BLOCK Read the block of data following data_block call.
• DATE2DN Find day of year number from date.
• DATE2JD Convert a date string to Julian Day number.
• DATE2YMD Date text string to the numbers year, month, day.
• DELCHR Delete all occurrences of a character from a text string.
• DETAB Replace tab characters by spaces.
• DIRMEM Update a directory list for easy access.
• DISKCENTER Find center and radius of a disk in an image.
• DIST_SCALE Display a distance scale on an image.
• DIST_SCALE2 Display a distance scale on an image.
• DMS2D Convert from Degrees, MInutes, and seconds to degrees.
• DMS_FORM Convert degrees to a deg, min, sec vector font string.
• DOT Used by SUN_SHADE for dot prod. of surf. normal & sun vect.
• DRAW Graphics draw from last point to given point.
• DRAWPOLY Draw a polygon using mouse.
• DROP_COMMENTS Drop comment and null lines from a text array.
• DT_TM_BRK Break a date and time string into separate date and time.
• DT_TM_CHK Check date & time string that both parts exist & are valid.
• DT_TM_DIF Find time interval in seconds between two date/time strings.
• DT_TM_FROMCR Convert from Carrington Rotation Number to Date/Time.
• DT_TM_FROMJS Convert "Julian Seconds" to a date/time string.
• DT_TM_FULL Add missing parts of date to get a full date/time string.
• DT_TM_INC Increment a date/time by a given number of seconds.
• DT_TM_MAK Set up a time and date string from reference JD and offset.
• DT_TM_RANGE Extract date/time range from string with two date/times.
• DT_TM_TOCR Convert from Date/Time to Carrington Rotation Number.
• DT_TM_TOJS Convert a date/time string to "Julian Seconds".
• EARTHRAD Return earth radius in specified units.
• ELLFIT Fit an ellipse to a 2-d probability distribution.
• ELLIPSE Plot specified ellipse on the current plot device.
• EMBED Embed an array in a larger array.
• ENTER Prompted entries allowing defaults. Help, IDL/DCL commands.
• ENVELOPE Return the min/max envelope of a time series.
• EPSINIT Redirect plots and images to Encapsulated Postscript File.
• EPSTERM Terminate Encapsulated Postscript plotting.
• EQV Interactive equation viewer and curve fitter.
• EQV2 Interactively plot a function on current plot.
• EQV2_LOAD_HELP =============================================================== eqv2_load_help = Load help text variables R. Sterner, 1998 Apr 24. Separated to keep file short for fast loading. =============================================================== pro eqv2_load_help, t_1, t_2, t_3, t_4, t_5, t_6, t_7, t_8, t_9
• ETC Return estimated time to completion in seconds.
• EVENT_LOG Enter an event into the latest event log file.
• EXDIFF ------ exdiff.pro = Return difference between array extremes ------- function exdiff, x, help=hlp
• EXPLORE Image stats in a 16 x 16 box movable with the mouse.
• EXRANGE Return a range array with range expanded by given fraction.
• EXTREMES Find all the local extremes of a 1-d array.
• EXTREMES_2D Find local extremes in a 2-d array.
• F2FI16 Convert feet to feet, inches, and fractions to 1/16 inch.
• FACTOR Find prime factors of a given number.
• FFT_FILTER Do FFT filtering of time series data.
• FILEBREAK Breaks file name(s) into components.
• FILENAME File names with system independent symbolic directories.
• FILE_TEST Test if file readable &, optionally, has specified contents.
• FILLJUMPS Find indices needed to fill in value jumps in an array.
• FILL_CONT Returns a byte array with filled contours.
• FINDFILE2 Find files and sort them.
• FINDFILE3 Find files and sort them.
• FIRSTCHAR Position of first non-whitespace char in string.
• FIT Curve fit program. Polynomial, exponential, power law.
• FIT12 For internal use by FIT only.
• FIT6 For internal use by FIT only.
• FIXANG Fix angle discontinuety at 0-360.
• FIXANGH Fix angle wraparound using a hysteresis method.
• FIXGAPS Linearly interpolate across data gaps in an array.
• FLAT2SPH Map a flat map onto a sphere.
• FNDWRD Find number, locations, lengths of words in a text string.
• GAUSS Return a fitted gaussian curve for a given histogram.
• GENARROW Generate an arrow polygon.
• GENELLIPSE Generate points on an ellipse.
• GENSHAPE Generate x,y coordinates to draw named shaped.
• GENTILE Generate a Netscape web page background tile.
• GEN_FIT Fitted Y array for given X array from given fit parameters.
• GETENV2 Version of getenv portable across operating systems.
• GETFILE Read a text file into a string array.
• GETFILELN Get a line from a text file.
• GETKEY Return a keyboard key. Interpret escape sequences.
• GETRUN N'th run of consecutive integers from a given array.'
• GETSTR Get delimited strings from a text string or array.
• GETSYSNAMS Get a list from a file specified by an environmental var.
• GETVIEW Return current viewport.
• GETWINDOW Get data window coordinates.
• GETWRD Return the n'th word from a text string.
• GET_COUNT Get next count value, from 1 up.
• GIF2JPEG Convert a GIF image to a JPEG image.
• GIFADD Add R,G,B color components for list of GIF images.
• GIFSCREEN Save current screen image and color table to a GIF file.
• GMT_OFFSEC Return offset in seconds from local time to GMT (UT).
• GRAPHFILE List a file on the graphics device.
• HELPFILE Display a file of help text.
• HELP_SAVE2 Look at files made by save2 and list what they contain.
• HGET Get a handle value.
• HIST Compute histogram and corresponding x values. Allows weights.
• HIST2D Compute a 2-d histogram for an array of points.
• HLINE Plot a horizontal line after erasing last plotted line.
• HLP Variant of HELP. Gives array min, max.
• HOR Plot a horizontal line on a graph at specified y value.
• HORI Interactive horizontal line on screen or plot.
• HSET Set a handle value.
• IBILIN Inverse bilinear interpolation.
• IMAGESIZE Compute actual postscript image size given available space.
• IMGFRM Puts a specified border around an image.
• IMGLINE Interactive line on the screen.
• IMGMASK Create a mask from an image.
• IMGNEG Display negative of current image.
• IMGOPEN Prepare a large image to be read.
• IMGPOLREC Map an angle/radius image to an X/Y image.
• IMGREAD Read part of a large image.
• IMGRECPOL Map an X/Y image to an angle/radius image.
• IMGREGION Interactively extract a selected image region.
• IMGSCALE Interactive image scaling.
• IMGSQZ Squeeze number of image colors used for current image.
• IMGUNDER Display image in same area as last plot.
• IMGWINDOW Compute plot window needed to display given image.
• INBOX Test if given point inside given box.
• INRANGE Find multiples of given step just inside given range.
• INTERP1 Linear interpolation.
• INTERPX Interpolate data with possible gaps and missing (bad) values.
• INTERPX_DEMO Demonstrate the use of interpx.
• INTERSECT Return the elements common to two given arrays.
• ISARRAY Tests if the argument is an array.
• ISNUMBER Determine if a text string is a valid number.
• IZOOM Zoom an image and display with labeled axes.
• JD2DATE Convert a Julian Day number to a date string.
• JD2JS Convert from Julian Day Number to Julian Seconds.
• JD2MDAYS Convert a range of Julian Days to month start and end JDs.
• JD2STR Find year, month, day strings from Julian Day number.
• JD2YMD Find year, month, day from julian day number.
• JDSELECT Select Julian Day array subset by month or weekday.
• JPEG2TIFF8 Convert a JPEG image to an 8 bit TIFF image.
• JPEGSCREEN Save current screen image and color table to a JPEG file.
• JPEG_MAG Change size of a JPEG image.
• JS2JD Convert from Julian Seconds to Julian Day Number.
• JS2V Read a time (in "Julian seconds") vs value file.
• JS2WEEKDAY Compute weekday given Julian Second.
• JS2YMDS Convert from "Julian Second" to year, month, day, second.
• JSCHECK Check accuracy of "Julian Seconds" over a given time span.
• JSPLOT Make a time series plot with time in Julian Seconds.
• KURF Computes kurtosis inside a moving window.
• KURT Returns the kurtosis of an array (4th moment/2nd moment^2).
• LASTINDEX Returns last index for each dimension of the given array.
• LASTPLOT Backup !p.multi to last plot position.
• LATEXOFF Close the encapsulated Postscript file opened by LATEXON.
• LATEXON Generate encapsulated postscript file to include in LaTeX documents.
• LECTURE Select specified lecture notes from a notes file.
• LEG Make a plot legend.
• LINCAL Plot a multimonth linear calendar on one page.
• LINEPTS Gives pixel coordinates of points along a line segment.
• LINFILL Fill gaps in array data using linear interpolation.
• LINI Interactive line.
• LINT Find the intersection of two lines in the XY plane.
• LISTRUNS Make a list of runs of consecutive integers.
• LL2RB From latitude, longitude compute range, bearing.
• LMST Give local mean sidereal time.
• LOCMAX Find local maxima in an image.
• LS Scale image between percentiles 1 and 99 (or specified percentiles).
• MAGCRS Show a magnified window around given point and wait for a cursor change.
• MAKEI Make a long array with given start and end values and step size.
• MAKELABELS Make an array of tick mark labels.
• MAKEMS Make array of values from start to end with a max step size.
• MAKEN Make an array of N values, linear between two given limits.
• MAKENLOG Make array of N values, logarithmic between two given limits.
• MAKENXY Make 2-d x and y coordinate arrays of specified dimensions.
• MAKES Make a string array of integers from lo to hi by step.
• MAKEV Make simulated 3-d data. Useful for software development.
• MAKEVLT Generate and load a random color table (CT).
• MAKEX Make an array with specified start, end and step values.
• MAKEXY Make 2-d X & Y coord. arrays, useful for functions of x,y.
• MAKEY Make simulated data. Useful for software development.
• MAKEZ Make simulated 2-d data. Useful for software development.
• MAKE_RULER Plot linear scales on the laser printer.
• MAKE_SCALE Plot circular scales on the laser printer.
• MANDELBROT Compute Mandelbrot images
• MAP_PUT_SCALE Embed map scaling info in image.
• MAP_SET_SCALE Set map scaling from info embedded in a map image.
• MCOMPUTE Compute mandelbrot set images.
• MEAN Returns the mean of an array.
• MIDV Return value midway between array extremes.
• MONTHDAYS Given a year and month returns number of days in that month.
• MONTHNAMES Returns a string array of month names.
• MORE Display a text array using the MORE method.
• MOREFILE Display a specified text file using more.
• MOVBOX Interactive box on image diaply.
• MOVCROSS Interactive cross-hair on a plot.
• MOVE Graphics move to a point.
• MOVLABELS Interactively position labels and list xyouts statement.
• MOVTXT Interactively position text and list xyouts statement.
• MULTICOL Reformat a string array into multi-columns.
• MZOOM Compute new region needed to zoom a mandelbrot image.
• NAMENUM Break a name into a pattern and numbers in the name.
• NAXES Find nice axis tics.
• NEAREST Return multiple of a given step nearest a target value.
• NEXTITEM Return next line from a file, ignore comments & null lines.
• NEXTNUM Return next number using the arrow keys.
• NEXTPLOT Update !p.multi to next plot position.
• NICENUMBER Find a nice number close to the given number.
• NRUNS Gives # of runs of consecutive integers in given array.'
• NTHWEEKDAY Julian Day of N'th weekday of month (like 2nd tues).'
• NUMFACTORS Gives the number of factors of a number.
• NUMNAME Generate names or text strings with embedded numbers.
• NUM_DEC Number of decimal places in given number.
• NWIN Convert from normalized window coordinates.
• NWRDS Return the number of words in the given text string.
• ONE2TWO Convert from 1-d indices to 2-d indices.
• OPFIT1D Calculate orthonormal polynomial fit for 1-d data.
• OPFIT2D Calculate orthonormal polynomial fit for 2-d data.
• ORTHOPOLY Calculates a set of orthonormal polynomials.
• OUTBOX Test if given point outside given box.
• PACK Find best packing of images (rectangles) on a page.
• PAINT Paint on an image.
• PAN Pan around a screen image. Set pixels to a specified value.
• PARCURVE Return a curve parallel to given curve.
• PATH Examine and modify the IDL path.
• PCKEY Read PC keyboard. Interpret special keys.
• PCON IDL path control utility. May turn libraries on or off.
• PH Return the phase of a complex number.
• PHASE Return an array filled in to indicate specified moon phase.
• PICKCOLOR Allow user to pick a color from current color table.
• PK Pick a set of points on a plot.
• PLANE_INT Compute the intersection line of two planes.
• PLINT Intersection point of a plane and a line.
• PLOTP Pencode plot routine. Allows disconnected lines.
• PLOTPOS Compute plot position for a plot of specified shape.
• PLOTSEQ Plot a movielike sequence of graphs.
• PLOTWIN Gives plot window (area enclosed by axes) in pixels.
• PLTCRV Edit curve points with mouse. Overlay spline.
• PLURAL Plural function: returns 's' if arg > 1, else ''.
• PMATCH Find a given pattern in a 1-d array.
• PMOD Find the positive modulo value of a number.
• POINT Plot a filled point at given position.
• POINTS Convert from size in points to IDL charsize or pixels.
• POLREC Convert 2-d polar coordinates to rectangular coordinates.
• POLREC3D Convert vector(s) from spherical polar to rectangular form.
• POLYSTAT Compute polygon statistics (# vertices, area, perimeter).
• POLY_FIT2 Returns fitted Y values for each given X value.
• POS_CM Convert keyword POSITION for PLOT from cm to norm. coords.
• PRECESS Precess celestial coordinates to a new date.
• PRIME Return an array with the specified number of prime numbers.
• PRINTAT Print given items at specified screen column and line.
• PRINT_FACT Print prime factors found by the factor routine.
• PROTRACTOR Measure angles on the screen.
• PRWINDOW Print current window or gif image on color printer.
• PSIMG Display an image on postscript printer.
• PSINIT Redirect plots and images to postscript printer.
• PSPAPER Plot a postscript layout sheet. Gives normalized coordinate system.
• PSTERM Terminate postscript plotting and send plots to printer.
• PUTFILE Write a text file from a string array.
• PUT_SCALE Embed in current image values needed to restore scaling.
• RADIAL_IMG Make an image array with a radial brightness distribution.
• RADII Plot specified radii on the current plot device.
• RADON Compute the Radon Transform using the FFT method.
• RAOUT Write text along an arc in data coordinates.
• RB2LL From range, bearing compute latitude, longitude .
• RDCOL Read columns of numbers or times from a text file.
• RDFILE Read lines from a text file.
• READTOKEY Read an open text file until a given key word is found.
• RECPOL Convert 2-d rectangular coordinates to polar coordinates.
• RECPOL3D Convert vector(s) from rectangular to spherical polar form.
• REFRACT Correct true altitudes to refracted altitudes.
• REGIONS Using specified breakpoints map image values into 0,1,2,...
• REGIONSBAR Plot a color bar for a regions type image.
• REPCHR Replace all occurrences of one character with another in a text string.
• REPWORD Replace a word in a text string.
• RESCLOSE Close results file.
• RESCOM Display values from the results common and also file header.
• RESGET Get a variable from a results files.
• RESOPEN Open a results file for reading or writing.
• RESPUT Put values into a results file.
• RESTORE2 Retrieve from a file IDL variables saved by save2.
• REV Reverse plot and background colors.
• RGB Explore RGB color system.
• ROTATE_XY Rotate a set of X,Y points about a given point.
• ROTVLT Rotate current vlt or part of it.
• ROT_3D Rotate 3-d coordinate system.
• ROUND2 Round that works for big double precision numbers.
• RSPEC Compute an ensemble averaged frequency spectrum of real data.
• RTICS Plot labeled or unlabeled tic marks around a circular arc.
• RUNLENGTH Give run lengths for array values.
• SATTRACKAZ Return the azimuth of a satellite track given inc and lat.
• SAVE2 Save IDL vars in a file. Allows them to be renamed during restore2.
• SCALEARRAY Linearly scale array values to specified range.
• SCALE_DB Scale given data to db (meant for images).
• SCALE_RGB Interactively scale R,G,B image components.
• SCRAMBLE Scrambles an array or returns an array scrambled indices.
• SCREEN Print a terminal screen layout sheet on PS printer.
• SCREENGIF Display a GIF image in a screen window.
• SCREENJPEG Display a jpeg image in a screen window.
• SCREENTIFF Display a tiff image in a screen window.
• SDEV Returns standard deviation of an array.
• SECHMS Seconds after midnight to h, m, s, numbers and strings.
• SECSTR Convert a time string to seconds.
• SEEDFILL For an array fill a connected region bounded by given values.
• SEEDFILLR For an array fill a connected region of constant pixel value.
• SEGMENT Set boundaries of constant value to 0.
• SELECT_INTERVALS Select all intervals within a given range.
• SETCOLOR Set a single color table entry.
• SETMINUS Eliminate elements from a set that are also in another set.
• SETWIN Set which window should be currently active window.
• SET_ISOXY Set data window with equal x & y scales. Covers at least given range
• SET_SCALE Set scaling from currently displayed image.
• SET_WINDOW Set data window.
• SHADE_CLT Sets up color table used for sun_shade shaded relief displays.
• SHADE_IMG Shade a given image based on a shading array.
• SHADE_SURF2 Allow image overlay with surface shading.
• SHIFTF Shift an array by a fractional number of indices.
• SHOWPATH Show the path of the calling routine.
• SHOW_BOX Used by MOVBOX to display current box size and position.
• SIGN Return the mathematical sign of the argument.
• SIMP Does Simpson numerical integration on an array of y values.
• SKEW Returns the skew of an array (3rd moment/2nd moment^3/2).
• SKEWF Computes skew inside a moving window.
• SKEWINT Give the near-intersection point for two skew lines.
• SLOWPLOT Plot data slowly in fading colors.
• SMOOTH2 Do multiple smoothing. Gives near Gaussian smoothing.
• SOPLOT Make a shaded over plot.
• SPC Return a string with the specified number of spaces (or other char).
• SPHDIST Angular distance between points on a sphere.
• SPHGC Find intersections of two great circles on sphere.
• SPHIC Compute intersection points of two circles on a unit sphere.
• SPHINIT Initialize sphere drawing package.
• SPHLAT Draw parallels of latitude on a sphere.
• SPHLNG Draw meridians of longitude on a sphere.
• SPHPLOT Plot a curve in spherical polar coordinates.
• SPHRAD Draw sphere radius.
• SPHTEXT Write text on a sphere.
• SPH_DEMO Demonstrate some of the spherical plot (sph*) routines.
• SPLAT Generate points on a splat curve.
• SPLOT Make a shaded plot.
• SPRINT Print text on screen, allows easy update.
• STATE_NAME Return name of state given 2 letter abbreviation.
• STEXT_XYP Return stroke text plot arrays.
• STRARR2BYT Pack a string array into a byte array
• STREP Edit a string by position. Precede, Follow, Replace, Delete.
• STRESS String edit by sub-string. Precede, Follow, Delete, Replace.
• STRIPSHIFT Shift strips of an image in x or y.
• STRLENTAB Gives length of a string with tab characters expanded.
• STRSEC Convert seconds after midnight to a time string.
• STRSUB Extract a substring by start and end positions.
• STRTRM2 Trim given character (and spaces) from ends of given string.
• SUBIMG From current image select and redisplay a subimage.
• SUBNORMAL Convert from subnormal coordinates to normalized coord.
• SUN Computes geocentric physical ephemeris of the sun.
• SUNALTAZI Compute sun position from date/time and long/lat.
• SUNCLOCK Show world map with day, twilight, and night.
• SUNJS Computes geocentric physical ephemeris of the sun.
• SUNPOS Compute sun position from date/time and long/lat.
• SUN_COLORS Load sun color table
• SUN_SHADE Make a colored shaded relief view of a surface array.
• SUN_ZD Return solar zenith distances for given position.
• SWAP Swap two values.
• SWDELETE Delete a scrolling window.
• SWINDOW Create a scrolling window. Works much like window.
• SWLIST Display info for all scrolling windows, set new active one.
• SYMASYM Resolve an array into symmetric & anti-symmetric components.
• TARCLR Find closest match to given target color in current color table.
• TESTCOLOR Display colors selected by number.
• TETRIS ====================================================================== IDL Tetris, Ray Sterner, 23 and 25 June, 1991 IDL version of Tetris. This program is composed of the following routines: t_init = initializes the screen and internal arrays.
• TEXTI Interactive Text.
• TEXTPOS Find size and angle of text string given points at each end.
• TEXT_BLOCK ------- text_block.pro = Print or return a block of inline text. --------- R. Sterner, 1998 Mar 3 pro text_block, out, quiet=quiet, help=hlp
• THICKEN Thicken graphics in an existing image. Good for viewgraphs.
• THPLOT Plot a curve with varying thickness along it.
• TICKLEN Compute ticklength for specified size in pixels.
• TIFF2JPEG Convert a TIFF image to a JPEG image.
• TIFFSCREEN Save current screen image and color table to a TIFF file.
• TIME2JDOFF Find Julian day and offset from seconds. JS, Timeaxis
• TIMEAXIS Plot a time axis.
• TIMER Measure elapsed time between calls.
• TIME_LABEL Make a time label array
• TNAXES Find nice time axis tics.
• TODEV Convert from data or normalized to device coordinates.
• TOPC Return top color number for current device.
• TOPCOLORS Reserve and define some colors at top of color table.
• TOPO Make a monochrome shaded relief view of a surface.
• TRANSLATE Translate an image to regisiter with a reference image.
• TVBOX Draw or erase a box on the image display.
• TVCIRC Draw a circle on the display.
• TVCRS2 Like tvcr but allows data, device, & normal coordinates.
• TVPOS Gives screen position used by tv, tvscl.
• TVRD2 Version of tvrd that allows out of bounds.
• TVRDBOX Read part of screen image into a byte array.
• TVSHARP Redisplay a sharpened version of the current screen image.
• TVWRBOX Display byte array on screen using box for position & size.
• TWO2ONE Convert from 2-d indices to 1-d indices.
• TXTDEMO -------- txtdemo.pro = demonstrate and test txt routines -------- R. Sterner, 25 Feb, 1992 pro txtdemo, help=hlp
• TXTFILE Enter a (new) file name.
• TXTGETFILE Select a file name.
• TXTGETKEY Get a keyword value from a string array.
• TXTIN txtmenu value entry.
• TXTMENU Text screen menu routine.
• TXTMENU_HELP Gives detailed help for the TXTMENU routine.
• TXTMESS Display a message on the screen and wait for any key.
• TXTMETER Display a 0 to 100% meter on a text screen.
• TXTPICK Select file(s) from a screen menu displaying a file list.
• TXTYESNO Ask a yes/on question and read the answer.
• UNIQUE Return the unique elements of an array.
• UNIT Returns unit vector along given vector.
• UPCASE1 Capitalize first letter in string.
• VARF Computes variance inside a moving window.
• VARIANCE Computes the variance of an array of numbers.
• VASE Draw rotationally symetric shapes.
• VCLIP Clip a vector to a clipping window.
• VECFLD Plot a 2-d vector field.
• VECT_ANGLE Angular distance between vectors.
• VER Plot a vertical line on a graph at specified x value.
• VERI Interactive vertical line on screen or plot.
• VIMGSEQ Display a sequence of byte images.
• VLINE Plot a vertical line after erasing last plotted line.
• WEBCALTAB Generate HTML table code for a calendar.
• WEBSHADOW Add a shadow to a web page image.
• WEBTILE Generate a Netscape web page background tile.
• WEB_BACK Generate a random web background.
• WEEKDAY Compute weekday given year, month, day.
• WHELP Widget to display given help text.
• WHOAMI Returns to the calling routine its directory and name.
• WHOCALLEDME Returns to calling routine its parent's directory and name.
• WMENU2 Like wmenu but allows non-mouse menus. Uses widgets if available.
• WORDARRAY Convert text string or string array to 1-d array of words.
• WORDORDER Re-arrange words in a text string.
• WORDPOS Gives word number in a reference string for a search word.
• XBB Widget bill board utility for text display.
• XCED1 Simple widget to edit a single color table entry.
• XCURSOR Cursor coordinate display in a pop-up widget window.
• XCURVE Draw a curve in the display window.
• XCYPH Widget based cycle/phase images.
• XDATAFILE Explore a text file of unkown format.
• XDATE Widget based date selection tool.
• XFILES Select files, individual or ranges.
• XGETFILE Widget based file selection routine.
• XHELP Widget to display given help text.
• XHISTPICK Widget routine to select image scaling based on a histogram.
• XHOTLIST Widget based hotlist of items.
• XHSBC Adjust image hue, saturation, brightness, & contrast. Widget.
• XLINE Interactive line on image display.
• XLIST Pop-up list selection widget.
• XMERGE Widget based routine to merge multiple color images in one.
• XMESS Display a message using a widget.
• XMETER Display a 0 to 100% meter on a text screen.
• XOPTION Widget option selection panel.
• XPRINT Print text on graphics device. After initializing use just like print.
• XSPEC Compute an ensemble averaged cross spectrum of real data.
• XSUBDIR Widget based subdirectory selection tool.
• XTEXTFILE Explore a text file of unkown format.
• XTEXTIMG Create an image with text. Widget based.
• XTICS Draw labeled tics for an X type axis.
• XTXTIN Widget based text input.
• XVIEW View and/or convert images (GIF, TIFF, ...).
• XYESNO Widget Yes/No selection panel.
• XYOUTB Bold text version of xyouts.
• YDN2DATE Convert year and day of the year to a date string.
• YDN2MD Convert from year and day number of year to month and day of month.
• YDNS2JS Convert year, day of the year, and seconds to Julian Seconds.
• YMD2DATE Convert from year, month, day numbers to date string.
• YMD2DN Convert from year, month, day to day number of year.
• YMD2JD From Year, Month, and Day compute Julian Day number.
• YMDS2JS Convert to year, month, day, second to "Julian Second".
• ZPAN Zoom and pan around an image using the mouse.
• ZPLOT Plot symbols in various colors.