Ruby/PGPLOT categorized method index

Drawing primitives

• pgline -- draw a polyline (curve defined by line-segments)
• pgpoly -- draw a polygon, using fill-area attributes
• pgpt1 -- draw one graph marker
• pgpt -- draw several graph markers
• pgpnts -- draw several graph markers, not all the same
• pgarro -- draw an arrow
• pgcirc -- draw a circle, using fill-area attributes
• pgrect -- draw a rectangle, using fill-area attributes
• pgmove -- move pen (change current pen position)
• pgdraw -- draw a line from the current pen position to a point

Axis

• pgaxis -- draw an axis
• pgbox -- draw labeled frame around viewport
• pgtick -- draw a single tick mark on an axis
• pgtbox -- draw frame and write (DD) HH MM SS.S labelling

Text

• pglab -- write labels for x-axis, y-axis, and top of plot
• pgtext -- write text (horizontal, left-justified)
• pgmtxt -- write text at position relative to viewport
• pgptxt -- write text at arbitrary position and angle
• pgetxt -- erase text from graphics display
• pgiden -- write username, date, and time at bottom of plot
• pglen -- find length of a string in a variety of units
• pgqtxt -- find bounding box of text string

Histgram

• pgbin -- histogram of binned data
• pghist -- histogram of unbinned data

Error bar

• pgerr1 -- horizontal or vertical error bar
• pgerrb -- horizontal or vertical error bar
• pgerrx -- horizontal error bar
• pgerry -- vertical error bar

2D drawing

• pgcont -- contour map of a 2D data array (contour-following)
• pgcons -- contour map of a 2D data array (fast algorithm)
• pgconb -- contour map of a 2D data array, with blanking
• pgconf -- fill between two contours
• pgconl -- label contour map of a 2D data array
• pgconx -- contour map of a 2D data array (non rectangular) (not implemented in Ruby/PGPLOT)
• pgimag -- color image from a 2D data array
• pgctab -- install the color table to be used by pgimag
• pggray -- gray-scale map of a 2D data array
• pgpixl -- draw pixels
• pgvect -- vector map of a 2D data array, with blanking
• pgwedg -- annotate an image plot with a wedge
• pghi2d -- cross-sections through a 2D data array

Cursor

• pgband -- read cursor position, with anchor
• pgcurs -- read cursor position
• pglcur -- draw a line using the cursor
• pgncur -- mark a set of points using the cursor
• pgolin -- mark a set of points using the cursor

Control

• pgopen -- open a graphics device
• pgbeg -- open a graphics device
• pgclos -- close the selected graphics device
• pgend -- close all open graphics devices
• pgenv -- set window and viewport and draw labeled frame
• pgask -- control new page prompting
• pgpage -- advance to new page
• pgeras -- erase all graphics from current page
• pgbbuf -- begin batch of output (buffer)
• pgebuf -- end batch of output (buffer)
• pgpanl -- switch to a different panel on the view surface
• pgpap -- change the size of the view surface
• pgrnge -- choose axis limits
• pgsave -- save PGPLOT attributes
• pgunsa -- restore PGPLOT attributes
• pgscrl -- scroll window
• pgsubp -- subdivide view surface into panels
• pgupdt -- update display

Set attributes

• pgsah -- set arrow-head style
• pgscf -- set character font
• pgsch -- set character height
• pgsci -- set color index
• pgscir -- set color index range
• pgsclp -- enable or disable clipping at edge of viewport
• pgscr -- set color representation
• pgscrn -- set color representation by name
• pgsfs -- set fill-area style
• pgshls -- set color representation using HLS system
• pgshs -- set hatching style
• pgsitf -- set image transfer function
• pgslct -- select an open graphics device
• pgsls -- set line style
• pgslw -- set line width
• pgstbg -- set text background color index
• pgsvp -- set viewport (normalized device coordinates)
• pgswin -- set window
• pgvsiz -- set viewport (inches)
• pgvstd -- set standard (default) viewport
• pgwnad -- set window and adjust viewport to same aspect ratio

Inquire attributes

• pgldev -- list available device types on standard output
• pgqah -- inquire arrow-head style
• pgqcf -- inquire character font
• pgqch -- inquire character height
• pgqci -- inquire color index
• pgqcir -- inquire color index range
• pgqclp -- inquire clipping status
• pgqcol -- inquire color capability
• pgqcr -- inquire color representation
• pgqcs -- inquire character height in a variety of units
• pgqdt -- inquire name of nth available device type
• pgqfs -- inquire fill-area style
• pgqhs -- inquire hatching style
• pgqid -- inquire current device identifier
• pgqinf -- inquire PGPLOT general information
• pgqitf -- inquire image transfer function
• pgqls -- inquire line style
• pgqlw -- inquire line width
• pgqndt -- inquire number of available device types
• pgqpos -- inquire current pen position
• pgqtbg -- inquire text background color index
• pgqvp -- inquire viewport size and position
• pgqvsz -- inquire size of view surface
• pgqwin -- inquire window boundary coordinates

Hereafter not implemented in Ruby/PGPLOT

Utility

• pgnumb -- convert a number into a plottable character string
• pgrnd -- find the smallest `round' number greater than x

Drawing function

• pgfunt -- function defined by X = F(T), Y = G(T)
• pgfunx -- function defined by Y = F(X)
• pgfuny -- function defined by X = F(Y)

Alias

• pgadvance -- non-standard alias for pgpage
• pgbegin -- non-standard alias for pgbeg
• pgcurse -- non-standard alias for pgcurs
• pglabel -- non-standard alias for pglab
• pgmtext -- non-standard alias for pgmtxt
• pgncurse -- non-standard alias for pgncur
• pgpaper -- non-standard alias for pgpap
• pgpoint -- non-standard alias for pgpt
• pgptext -- non-standard alias for pgptxt
• pgvport -- non-standard alias for pgsvp
• pgvsize -- non-standard alias for pgvsiz
• pgvstand -- non-standard alias for pgvstd
• pgwindow -- non-standard alias for pgswin