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+
+
+
+
+
+palette(n) manual page
+
+
+Table of Contents
+
+
+
+fgisRasterColorImage, fgisRasterBWImage - render raster object into
+planchet item
+
+
+fgisRasterColorImage raster planchet item ?option
+?
+ fgisRasterBWImage raster planchet item ?option ?
+
+
+
+ These
+commands perform visualisation of fGIS raster objects in fGIS planchet
+(essentially same as Tk canvas). They work on platform independent manner,
+creating visible representation of layer in Tk image object, which should
+be previously created.
+ User (and even application writer) seldom accesses
+this commands directly. Raser layer objects and planchet subcommands should
+be used to visualize raster layers.
+ These commands controls all attributes
+of layer appearance, which have no semantic meaning. I.e. raster file class
+to palette index correspondence is part of raster object, becouse it also
+used for access legend and GIS operation, while palette itself appear
+only in call to this command, becouse it used only to visualisation.
+
+
+
+
+
+
+
+- raster -
+- name of fGIS raster object (see raster (n)
+).
+
+
+
+
+
+- planchet
+ -
+- name of fGIS planchet widget. Planchet should be mapped and have coordinate
+system already defined.
+
+
+
+
+
+- item -
+- ID of planchet item to render raster in.
+It should exist, be of type image and contain valid image (photo for fgisRasterColorImage
+ and bitmap for fgisRasterBWImage ) in its -image atribute.
+
+
+
+
+
+
+
+- -border
+option -
+- specifies whether borders between raster object classes or base
+file classes (polygon borders) should be drawn. Option can be one of none
+, yes , base . Abbreviations are not allowed (bug?). yes means that borders
+are drawn only between distinct classes of current raster object, base
+ means that borders should be drawn if base file classes are distinct,
+even if they are reclassed into same value. Useful for choropleth plots.
+
+
+
+ For symbol plots option is ignored. Defaults to none for color images
+and yes for BW images.
+
+
+- -color color
+- - specifies color to plot borders
+in color mode or for entire image in pattern or symbol mode. color can
+be any form of color specification, acceptable by Tk. Defaults to "black".
+
+
+- -map option -
+- specifies how to deal with map classes, which exceed palette
+or pattern range (0-255). Option is one of wrap - use symbol (color) class%255
+ for classes which exceeds 255, none - use symbol (color) 255 for all
+these clases and number - map range 0-max class to range 0-number . Defaults
+to wrap .
+
+- -palette palettename (color only) -
+- specifies fGIS palette object
+to use for coloring of map classes. Defaults to defaultpalette .
+
+- -patterns
+patternname (BW only) -
+- sets plotting mode to pattern and specifies pattern
+set to plot. In pattern mode patterns are clipped by polygon boundaries,
+and thus any border modes are allowed. Defaults to {} (empty pattern). This
+mode is default for fgisRasterBWImage
+
+- -symbols patternname (BW only)
+-
+- sets plotting mode to symbol and specifies pattern set to plot. In symbol
+mode patterns can be drawn only at whole, so if central point of pattern
+belongs to certain class, pattern for this class would be drawn on entire
+rectangle. Borders are never plotted in this mode No defaults, becouse
+this mode must be turned on explicitely.
+
+- -update {x1 y1 x2 y2}
+- - Specifies,
+that only part of image should be replotted. Useful for raster editing
+application. Rectangle to update is given in map coordinates. It is clipped
+by image boundaries.
+
+
+
+
+raster(n)
+,planchet(n)
+,palette(n)
+, patterns(n)
+
+
+
+
+Table of Contents
+
+