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Options

Based on XMapTools 4.5 embedded documentation – Help file version 11.01.2024

This page describes the tools available in the Options section.


Option Tools

Figure 1: Option tools in XMapTools.

Colour Bar & Colour Palette

Use these options to change the colour palette, change the resolution of the colour map (number of colours), change the scale of the colour bar to logarithmic and add a black or white layer at the bottom and/or top of the colour palette.

Colormap

Colormap Set the colour palette to be used for the colour bar throughout XMapTools.

The recommended colour palettes are largely inspired by www.ColorBrewer.org by Cynthia A. Brewer, Geography, Pennsylvania State University. The following abbreviations are used in the drop-down menu: Colourblind friendly (C), Linear (L), Divergent (D) and Print friendly (P).

Default palettes:

  • XMap (default), Spectral, SingleRed, Frenchy, Fruity, Ocean, Forest, Winter 2021, Blues, Reds, B&W, Horizon, Watermelon, Purples

Scientific colour maps by Simon Garnier (viridisLite):

  • VIRIDISLITE plasma, viridis, inferno, magma

Scientific colour maps by Fabio Crameri:

  • SCM Acton, Bam, Bamako, BamO, Batlow, BatlowK, BatlowW, Berlin, Bilbao, Broc, Buda, Bukavu, Cork, CorkO, Davos, Devon, Fes, GRayC, Hawaii, Imola, Lajolla, Lapaz, Lisbon, Nuuk, Oleron, Oslo, Roma, RomaO, Tofino, Tokyo, Turku, Vanimo, Vik

Log scale

Log Check the Log (Use a log colormap) box to set a logarithmic axis for the colour bar. If this option is not selected, a linear scale is used instead.

Colormap resolution

Resolution Sets the number of colours used in the colormap (i.e. the resolution of the colour bar). Colour palettes defined with more colours are resampled. The default value is 256.

Layer options

Layers Adds a black or white layer at the bottom (lower) and/or top (upper) of the colour palette. When selected, the layer can be set to either black or white in the corresponding drop down menu.

Negative values

Negative If selected, negative values are displayed in the plotted map. By default, XMapTools ignores negative values in plots.

Auto Contrast

The Apply Auto Contrast option activates automatic contrast enhancement each time a new map is displayed.

Other Options

Median filter for 3D surface

Median filter Defines the value of the median filter to be applied when plotting a new 3D surface (see main menu Edit > Plot 3D surface). Changing this option will not update plots already generated.

XMapTools Main Window

This is the current resolution of the programme. Please submit this value if you are experiencing display problems with XMapTools.