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gmtset(1gmt) [plan9 man page]

GMTSET(l)																 GMTSET(l)

gmtset - To change individual GMT default parameters SYNOPSIS
gmtset [ -GfPdefaultsfile ] PARAMETER1 [=] value1 PARAMETER2 [=] value2 PARAMETER3 [=] value3 ... DESCRIPTION
gmtset will adjust individual GMT defaults settings in the current directory's .gmtdefaults' file. If no such file exists one will be cre- ated. The main purpose of gmtset is to temporarily change certain parameters inside a shellscript, e.g., set the dots-per-inch to 600, run the script, and reset to 300 dpi. PARAMETER value Provide one or several pairs of parameter/value combinations that you want to modify. For a complete listing of available parameters and their meaning, see the gmtdefaults man page. OPTIONS
-G Name of specific .gmtdefaults file to modify [Default looks first in current directory, then in your home directory, and finally in the system defaults]. EXAMPLES
To change the dpi to 600, set anotation font to Helvetica, and select grid-crosses of size 0.1 inch, and set anotation offset to 0.2 cm, try gmtset DOTS_PR_INCH 600 ANOT_FONT Helvetica GRID_CROSS_SIZE 0.1i ANOT_OFFSET 0.2c SEE ALSO
gmt(1gmt), gmtdefaults(1gmt) 1 Jan 2004 GMTSET(l)

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GMTDEFAULTS(l)															    GMTDEFAULTS(l)

gmtdefaults - To list current GMT defaults SYNOPSIS
gmtdefaults -D[u|s] | -L DESCRIPTION
gmtdefaults lists the GMT parameter defaults if the option -D is used. To change some of the settings, use any texteditor to edit the file .gmtdefaults in your home or current directory. If you do not have this file in your home or current directory, run gmtdefaults -D > ~/.gmtdefaults to get the system settings. GMT can provide default values in US or SI units. This choice is determined by the contents of the gmt.conf file in GMT's share directory.' -D Print the system GMT defaults to standard output. Append u for US defaults or s for SI defaults. [-D alone gives current choice in gmt.conf]. -L Print the user's currently active defaults to standard output.' GMT PARAMETERS
The following is a list of the 58 parameters that are user-definable in GMT. The parameter names are always given in UPPER CASE. The param- eter values are case-insensitive unless otherwise noted. The system defaults are given in brackets [ ]. Those marked * can be set on the command line as well (the corresponding option is given in parentheses). Note that default distances and lengths below are given in both cm or inch; the chosen default depends on your choice of default unit (see MEASURE_UNIT). You can explicitly specify the unit used for dis- tances and lengths by appending c (cm), i (inch), m (meter), or p {points). When no unit is indicated the value will be assumed to be in the unit set by MEASURE_UNIT. Note that the printer resolution DOTS_PR_INCH is always the number of dots or pixels per inch. Several parameters take only TRUE or FALSE. ANOT_MIN_ANGLE If the angle between the map boundary and the annotation baseline is less than this minimum value (in degrees), the annotation is not plotted (this may occur for certain oblique projections.) Give a value in the range 0-90. [20] ANOT_MIN_SPACING If an annotation would be plotted less than this minimum distance from its closest neighbor, the annotation is not plotted (this may occur for certain oblique projections.) [0] ANOT_FONT Font used for tick mark annotations etc [Helvetica]. Specify either the font number or the font name (case sensitive!). The 39 available fonts are: 0 Helvetica 1 Helvetica-Bold 2 Helvetica-Oblique 3 Helvetica-BoldOblique 4 Times-Roman 5 Times-Bold 6 Times-Italic 7 Times-BoldItalic 8 Courier 9 Courier-Bold 10 Courier-Oblique 11 Courier-BoldOblique 12 Symbol 13 AvantGarde-Book 14 AvantGarde-BookOblique 15 AvantGarde-Demi 16 AvantGarde-DemiOblique 17 Bookman-Demi 18 Bookman-DemiItalic 19 Bookman-Light 20 Bookman-LightItalic 21 Helvetica-Narrow 22 Helvetica-Narrow-Bold 23 Helvetica-Narrow-Oblique 24 Helvetica-Narrow-BoldOblique 25 NewCenturySchlbk-Roman 26 NewCenturySchlbk-Italic 27 NewCenturySchlbk-Bold 28 NewCenturySchlbk-BoldItalic 29 Palatino-Roman 30 Palatino-Italic 31 Palatino-Bold 32 Palatino-BoldItalic 33 ZapfChancery-MediumItalic 34 ZapfDingbats 35 Ryumin-Light-EUC-H 36 Ryumin-Light-EUC-V 37 GothicBBB-Medium-EUC-H 38 GothicBBB-Medium-EUC-V ANOT_FONT_SIZE Font size (> 0) in points for map annotations. [14] ANOT_OFFSET Distance from end of tickmark to start of annotation [0.2c (or 0.075i)]. A negative offset will place the anotation inside the map border. BASEMAP_AXES Sets which axes to draw and annotate. Case sensitive: Upper case means both draw and annotate, lower case means draw axis only. [WESN]. BASEMAP_FRAME_RGB Color used to draw map boundaries and annotations. Give a red/green/blue triplet, with each element in the 0-255 range. [0/0/0] (black). BASEMAP_TYPE Choose between plain and fancy (thick boundary, alternating black/white frame) [fancy]. For some map projections (e.g., Oblique Mercator), plain is the only option even if fancy is set as default. In general, fancy only applies to situations where the pro- jected x and y directions parallel the lon and lat directions (e.g., rectangular projections, polar projections). COLOR_BACKGROUND Color used for the background of images (i.e., when z < lowest colortable entry). Give a red/green/blue triplet, with each element in the 0-255 range. [0/0/0] (black) COLOR_FOREGROUND Color used for the foreground of images (i.e., when z > highest colortable entry). Give a red/green/blue triplet, with each element in the 0-255 range. [255/255/255] (white) COLOR_IMAGE Selects which operator to use when rendering bit-mapped color images. Due to the lack of the colorimage operator in some PostScript implementations, GMT offers 2 different options: adobe (Adobe's colorimage definition) [Default].' tiles (Plot image as many individual rectangles). COLOR_MODEL Selects if color palette files contain rgb values (r,g,b in 0-255 range) or HSV values (h = 0-360, s,v in 0-1 range) [rgb]. COLOR_NAN Color used for the non-defined areas of images (i.e., where z == NaN). Give a red/green/blue triplet, with each element in the 0-255 range. [128/128/128] (gray) D_FORMAT Output format (C language syntax) to be used when printing double precision floating point numbers If it is NOT a 'g'-type format (as the default is), the format is used directly in anotations. [%lg]. DEGREE_FORMAT Output format to be used when annotating map boundaries. Choose between 12 formats: 0 Longitudes go from 0 to 360, latitudes from -90 to 90 [Default]. 1 Longitudes go from -180 to 180, latitudes from -90 to 90. 2 Longitudes are unsigned 0 to 180, latitudes unsigned 0 to 90. 3 Same as 2, but with letters W, E, S, or N appended as appropriate. 4 Same as 0, with decimal degrees instead of degrees, minutes, and seconds. 5 Same as 1, with decimal degrees instead of degrees, minutes, and seconds. 6 Same as 4, but with letters W, E, S, or N appended as appropriate. 7 Same as 5, but with letters W, E, S, or N appended as appropriate. 8 Same as 0, with degrees and decimal minutes instead of degrees, minutes, and seconds. 9 Same as 1, with degrees and decimal minutes instead of degrees, minutes, and seconds. 10 Same as 2, with degrees and decimal minutes instead of degrees, minutes, and seconds. 11 Same as 3, with degrees and decimal minutes instead of degrees, minutes, and seconds. Add 100 to these values to use the large degree symbol character (octal 217) [Default is the small degree symbol (octal 312)]. DOTS_PR_INCH Resolution of the plotting device (dpi). Note that in order to be as compact as possible, GMT PostScript output uses integer formats only so the resolution should be set depending on what output device you are using. E.g, using 300 and sending the output to a Lino- type 300 phototypesetter (2470 dpi) will not take advantage of the extra resolution (i.e., positioning on the page and line thick- nesses are still only done in steps of 1/300 inch; of course, text will look smoother) [300]. ELLIPSOID The (case sensitive) name of the ellipsoid used for the map projections [WGS-84]. Choose among WGS-84 1984 World Geodetic System GRS-80 1980 International Geodetic Reference System WGS-72 1972 World Geodetic System WGS-66 1966 World Geodetic System Australian 1965 Used down under Krassovsky 1940 Used in the Soviet Union International 1924 Worldwide use Hayford-1909 1909 Same as the International 1924 Clarke-1880 1880 Most of Africa, France Clarke-1866 1866 North America, the Phillipines Airy 1830 Great Britain Bessel 1841 Central Europe, Chile, Indonesia Everest 1830 India, Burma, Pakistan, Afghanistan, Thailand, etc. Sphere 1980 The mean radius in GRS-80 (for spherical/plate tectonics applications) Note that for some global projections, GMT may default to GRS-80 Sphere regardless of ellipsoid actually chosen. A warning will be given when this happens. If a different ellipsoid name than those mentioned here is given, GMT will attempt to open this name as a file and read the ellipsoid name, year, major-axis (in m), minor-axis (in m), and flattening from the first record, where the fields must be separated by white-space (not commas). This way a custom ellipsoid (e.g., those used for other planets) may be used. FRAME_PEN Thickness of pen used to draw plain map frame in dpi units or points (append p) [5]. FRAME_WIDTH Width (> 0) of map borders for fancy map frame [0.2c (or 0.075i)]. GLOBAL_X_SCALE Global x-scale (> 0) to apply to plot-coordinates before plotting. Normally used to shrink the entire output down to fit a specific height/width [1.0]. GLOBAL_Y_SCALE Same, but for y-coordinates [1.0]. GRID_CROSS_SIZE Size (>= 0) of grid cross at lon-lat intersections. 0 means draw continuous gridlines instead [0]. GRID_PEN Pen thickness used to draw grid lines in dpi units or points (append p) [1]. GRIDFILE_SHORTHAND If TRUE, all gridfile names are examined to see if they use the file extension shorthand discussed in Section 4.17 of the GMT Tech- nical Reference and Cookbook. If FALSE, no filename expansion is done [FALSE]. HEADER_FONT Font to use when plotting headers. See ANOT_FONT for available fonts [Helvetica]. HEADER_FONT_SIZE Font size (> 0) for header in points [36]. HSV_MIN_SATURATION Minimum saturation (0-1) assigned for most negative intensity value [1.0]. HSV_MAX_SATURATION Maximum saturation (0-1) assigned for most positive intensity value [0.1]. HSV_MIN_VALUE Minimum value (0-1) assigned for most negative intensity value [0.3]. HSV_MAX_VALUE Maximum value (0-1) assigned for most positive intensity value [1.0]. INTERPOLANT Determines if linear (linear), Akima's spline (akima), or natural cubic spline (cubic) should' be used for 1-D interpolations in various programs [akima]. IO_HEADER * (-H) Specifies whether input/output ASCII files have header record(s) or not [FALSE]. N_HEADER_RECS Specifies how many header records to expect if -H is turned on [1]. LABEL_FONT Font to use when plotting labels below axes. See ANOT_FONT for available fonts [Helvetica]. LABEL_FONT_SIZE Font size (> 0) for labels in points [24]. LINE_STEP Determines the maximum length (> 0) of individual straight line-segments when drawing arcuate lines [0.025c (or 0.01i)] MAP_SCALE_FACTOR Sets the central scale factor (> 0) used for the Polar Stereographic and Transverse Mercator projections. Typically, it is set to 0.9996 to minimize areal distortion [0.9996]. MAP_SCALE_HEIGHT Sets the height (> 0) on the map of the map scalebars drawn by various programs [0.2c (or 0.075i)]. MEASURE_UNIT Sets the unit length. Choose between cm, inch, m, and point. [cm]. Note that, in GMT, one point is defined as 1/72 inch (the Post- Script definition), while it is often defined as 1/72.27 inch in the typesetting industry. There is no universal definition. N_COPIES * (-c) Number of plot copies to make [1]. OBLIQUE_ANOTATION This integer is a sum of 5 bit flags (most of which only are relevant for oblique projections): If bit 1 is set(1), annotations will occur wherever a gridline crosses the map boundaries, else longitudes will be annotated on the lower and upper boundaries only, and latitudes will be annotated on the left and right boundaries only. If bit 2 is set(2), then longitude anotations will be plot- ted horizontally. If bit 3 is set(4), then latitude anotations will be plotted horizontally. If bit 4 is set(8), then oblique tickmarks are extended to give a projection equal to the specified tick_length. If bit 5 is set(16), tickmarks will be drawn nor- mal to the border regardless of gridline angle. To set a combination of these, add up the values in parentheses. [1]. PAGE_COLOR Sets the color of the imaging background, i.e., the paper. Give a red/green/blue triplet, with each element in the 0-255 range. [255/255/255] (white) PAGE_ORIENTATION * (-P) Sets the orientation of the page. Choose portrait or landscape [landscape]. PAPER_MEDIA Sets the physical format of the current plot paper [A4]. The following formats (and their widths and heights in points) are recog- nized (Additional site-specific formats may be specified in the gmtmedia.d file in $GMTHOME/share; see that file for details): Media width height A0 2380 3368 A1 1684 2380 A2 1190 1684 A3 842 1190 A4 595 842 A5 421 595 A6 297 421 A7 210 297 A8 148 210 A9 105 148 A10 74 105 B0 2836 4008 B1 2004 2836 B2 1418 2004 B3 1002 1418 B4 709 1002 B5 501 709 archA 648 864 archB 864 1296 archC 1296 1728 archD 1728 2592 archE 2592 3456 flsa 612 936 halfletter 396 612 note 540 720 letter 612 792 legal 612 1008 11x17 792 1224 ledger 1224 792 To force the printer to request a manual paper feed, append '-' to the media name, e.g., A3- will require the user to insert a A3 paper into the printer's' manual feed slot. To indicate you are making an EPS file, append '+' to the media name. Then, GMT will attempt to issue a tight bounding box [Default is the paper dimension]. PSIMAGE_FORMAT Determines whether images created in PostScript should use hexadecimal (i.e., ascii) or binary format. The latter takes up only half as much space and executes faster but may choke some printers, especially those off serial ports. Select hex or bin [hex]. TICK_LENGTH The length of a tickmark. Normally, tickmarks are drawn on the outside of the map boundaries. To select interior tickmarks, use a negative tick_length [0.2c (or 0.075i)]. TICK_PEN The pen thickness to be used for tickmarks in dpi units or points (append p) [2]. UNIX_TIME * (-U) Specifies if a UNIX system time stamp should be plotted at the lower left corner of the plot [FALSE]. UNIX_TIME_POS * (-U) Sets the position of the UNIX time stamp relative to the current plots lower left corner [-2c/-2c (or -0.75i/-0.75i)]. VECTOR_SHAPE Determines the shape of the head of a vector. Normally (i.e., for vector_shape = 0), the head will be triangular, but can be changed to an arrow(1). Intermediate settings gives something in between [0]. VERBOSE * (-V) Determines if GMT programs should display run-time information or run silently [FALSE]. WANT_EURO_FONT Determines if GMT PostScript output should include font re-encoding for accented European characters. See Cookbook section 4.16 and Appendix H for details [TRUE]. X_AXIS_LENGTH Sets the default length (> 0) of the x-axis [25c (or 9i)]. Y_AXIS_LENGTH Sets the default length (> 0) of the y-axis [15c (or 6i)]. X_ORIGIN * (-X) Sets the x-coordinate of the origin on the paper for a new plot [2.5c (or 1i)]. For an overlay, the default offset is 0. Y_ORIGIN * (-Y) Sets the y-coordinate of the origin on the paper for a new plot [2.5c (or 1i)]. For an overlay, the default offset is 0. XY_TOGGLE * (-:) Set if the first two columns of input files contain (latitude,longitude) or (y,x) rather than the expected (longitude,latitude) or (x,y) [FALSE]. Y_AXIS_TYPE Determines if the annotations for a y-axis (for linear projections) should be plotted horizontally (hor_text) or vertically (ver_text) [hor_text]. EXAMPLES
To get a copy of the GMT parameter defaults in your home directory, run gmtdefaults -D > ~/.gmtdefaults You may now change the settings by editing this file using a text editor of your choice, or use gmtset to change specified parameters on the command line. BUGS
If you have typographical errors in your .gmtdefaults file(s), a warning message will be issued, and the GMT defaults for the affected parameters will be used. SEE ALSO
gmt(1gmt), gmtset(1gmt) 1 Jan 2004 GMTDEFAULTS(l)
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