psxyz - Plot lines, polygons, and symbols in 3-D
psxyz files -Jparameters -Rwest/east/south/north/zmin/zmax[r] [
-Btickinfo ] [ -Ccptfile ] [ -Eazimuth/elevation ] [ -Gfill ] [
-H[nrec] ] [ -K ] [ -L ] [ -M[flag] ] [ -N ] [ -O ] [ -P ] [
-S[symbol][size] ] [ -U[/dx/dy/][label] ] [ -V ] [ -W[pen] ] [ -Xx-
shift ] [ -Yy-shift ] [ -Zzlevel ] [ -: ] [ -ccopies ] [ -bi[s][n] ]
psxyz reads (x,y,z) triplets from files [or standard input] and
generates PostScript code that will plot lines, polygons, or symbols
at those locations in 3-D. If a symbol is selected and no symbol size
given, then psxyz will interpret the fourth column of the input data
as symbol size in inch. If no symbols are specified then the symbol
code (see -S below) must be present as last column in the input.
Multiple segment files may be plotted using the -M option. If no
symbols are selected, a line will be drawn. To explicitly close
polygons, use -L. Select a shade with -G. If -G is set, -W will
control whether the polygon outline is drawn or not. If a symbol is
selected, -G and -W determines the fill color and outline/no outline,
respectively. The PostScript code is written to standard output.
List one or more file-names. If no files are given, psxyz will
read standard input.
-J Selects the map projection. Scale is inch/degree, 1:xxxxx, or
width in inch (upper case modifier).
-Jmscale (Mercator - Greenwich and Equator as origin)
-Jmlon0/lat0/scale (Mercator - Give meridian and standard
-Joalon0/lat0/azimuth/scale (Oblique Mercator - point and
-Joblon0/lat0/lon1/lat1/scale (Oblique Mercator - two points)
-Joclon0/lat0/lonp/latp/scale (Oblique Mercator - point and pole)
-Jqlon0/scale (Equidistant Cylindrical Projection (Plate Carree))
-Jtlon0/scale (TM - Transverse Mercator)
-Juzone/scale (UTM - Universal Transverse Mercator)
-Jylon0/lats/scale (Basic Cylindrical Projection)
-Jslon0/lat0/scale (General Stereographic)
-Jklon0/scale (Eckert VI)
-Jrlon0/scale (Winkel Tripel)
-Jpscale (Linear projection for polar (theta,r) coordinates)
-Jxx-scale[l|ppow][/y-scale[l|ppow]] (Linear, log, and power
More details can be found in the psbasemap manpages.
-Jz Sets the vertical scaling (for 3-D maps). Same syntax as -Jx.
-R west, east, south, and north specify the Region of interest. To
specify boundaries in degrees and minutes [and seconds], use the
dd:mm[:ss] format. Append r if lower left and upper right map
coordinates are given instead of wesn.
No space between the option flag and the associated arguments.
-B Sets map boundary tickmark intervals. See psbasemap for details.
-C Give a color palette file and let symbol color be determined by
the t-value in the fourth column. Must be used with -S. If
used, then additional fields are shifted over by one column
(optional size would be in 5th rather than 4th field, etc.).
-E Sets the viewpoint's azimuth and elevation [180/90].
-G Select filling of polygons and symbols. Append the shade
(0-255), color (r/g/b), or p|pdpi/pattern (polygons only)
[Default is no fill]. Note when -M is chosen, psxyz will search
for -G and -W strings in all the subheaders and let any found
values over-ride the command line settings.
-H Input file(s) has Header record(s). Number of header records can
be changed by editing your .gmtdefaults file. If used, GMT
default is 1 header record.
-K More PostScript code will be appended later [Default terminates
the plot system].
-L Force closed polygons: will connect the endpoints of the line-
sement(s) and draw polygons.
-M Multiple segment file. Segments are separated by a record whose
first character is flag. [Default is '>'].
-N Do NOT skip symbols that fall outside map border [Default plots
points inside border only].
-O Selects Overlay plot mode [Default initializes a new plot
-P Selects Portrait plotting mode [GMT Default is Landscape, see
gmtdefaults to change this].
-S Plot symbols. size is symbol size in inch (unless c, i, m, or p
is appended). The uppercase symbols A, C, D, H, I, S, T are
normalized to have the same area as a circle of given size, while
the corresponding lowercase symbols are circumscribed by the
circle. Choose between:
-Sa star. size is diameter of circumscribing circle.
-Sb (b)ar extending from base to y. size is bar width. Append u if
size is in x-units [Default is inch]. By default, base = 0.
Append bbase to change this value.
-Sc (c)ircle. size is diameter of circle.
-Sd (d)iamond. size is diameter of circumscribing circle.
-Se ellipse. Direction (in degrees counterclockwise from
horizontal), major_axis (in inch), and minor_axis (in inch) must
be found in columns 4, 5, and 6.
-SE Same as -Se, except azimuth (in degrees east of north) should be
given instead of direction. The azimuth will be mapped into an
angle based on the chosen map projection (-Se leaves the
directions unchanged.) Furthermore, the axes lengths must be
given in km instead of inch.
-Sf fault. Give distance gap between ticks and ticklength in inch.
If gap is negative, it is interpreted to mean number of ticks
instead. Append l or r to draw tick on the left or right side of
line [Default is centered]. Upper case L or R draws a triangle
instead of line segment.
-Sh hexagon. size is diameter of circumscribing circle.
-Si inverted triangle. size is diameter of circumscribing circle.
-Sl letter or text string. Give size in inch, and append /string
after the size. Note that the size is only approximate; no
individual scaling is done for different characters. Remember to
escape special characters like *.
-So c(o)lumn (3-D) extending from base to z. size sets base width
(Use xsize/ysize if not the same). Append u if size is in x-
units [Default is inch]. By default, base = 0. Append bbase to
change this value.
-Sp (p)oint. No size needs to be specified.
-Ss (s)quare. size is diameter of circumscribing circle.
-St (t)riangle. size is diameter of circumscribing circle.
-Su c(u)be (3-D). size sets length of all sides in inch. Append u if
size is in x-units [Default is inch].
-Sv (v)ector. Direction and length (in inch) must be found in
columns 4 and 5. size means arrowwidth/headlength/headwidth in
(inch) [[Default is 0.03i/0.12i/0.1i inch]. By default arrow
attributes remains invariant to the length of the arrow. To have
the size of the vector scale down with decreasing size, append
nnorm, where vectors shorter than norm will have their attributes
scaled by length/norm.
-SV Same as -Sv, except azimuth should be given instead of direction.
The azimuth will be mapped into an angle based on the chosen map
projection (-Sv leaves the directions unchanged.)
-Sx (x)cross. size is diameter of circumscribing circle.
-U Draw Unix System time stamp on plot. User may specify where the
lower left corner of the stamp should fall on the page relative
to lower left corner of plot in inch [Default is (-0.75i/-
0.75i)]. Optionally, append a label, or c (which will plot the
-V Selects verbose mode, which will send progress reports to stderr
[Default runs "silently"].
-W Set pen attributes. [Defaults: width = 1, color = 0/0/0, texture
= solid]. Implicitly draws the outline of symbol with selected
Shift origin of plot by (x-shift,y-shift) inch [Default is
(a1i,a1i) for new plots, (0,0) for overlays]. Prepend a for
absolute coordinates; the default (r) will reset plot origin.
-Z For 3-D projections: Sets the z-level of the basemap .
-: Toggles between (longitude,latitude) and (latitude,longitude)
input/output. [Default is (longitude,latitude)].
-c Specifies the number of plot copies. [Default is 1]
-bi Selects binary input. Append s for single precision [Default is
double]. Append n for the number of columns in the binary
file(s). [Default is the required number of columns given the
To plot blue columns (width = 0.5 inch) at the positions listed in the
file heights.xyz on a 3-D projection of the space (0-10), (0-10),
(0-100), with tickmarks every 2, 2, and 10, viewing it from the
southeast at 30 degree elevation, try:
psxyz heights.xyz -R0/10/0/10/0/100 -Jx0.5i -Jz0.05i -So0.5i -G0/0/255
-B2:XLABEL:/2:YLABEL:/10:ZLABEL::."3-D PLOT":15 -E135/30 -Uc -W -P >
No hidden line removal is employed for polygons and lines. Symbols,
however, are first sorted according to their distance from the
viewpoint so that nearby symbols will overprint more distant ones
should they project to the same x,y position.
Header must be plotted separately using pstext.
gmt, psbasemap, psxy
Man(1) output converted with