OdDgColorTable Class

API Reference > OdDg Classes > OdDgColorTable Class

OdDgColorTable Class

Class Hierarchy

Syntax

C++

class OdDgColorTable : public OdDgElement;

DgColorTable.h

The ordinary color table of DGN files. Each database (file) could have its color table of 256 colors (otherwise, the default color table is available). This table keeps all color for the indices [0...255].

Also, the extended color table could be stored among xAttributes of the file (see the static methods below). This table could keep an unlimited number of colors linked by indices of { indices > 255 }.

Please, note that a set of values is predefined (kColorByCell, kByLevel, etc). See OdDgGraphicsElement.h for details.

Corresponding C++ library: TG_Db

OdDgColorTable Methods

	Name	Description
	addExtendedColor	Add extended color to extended color table. Return dgn color index of new color.
	correctPaletteForWhiteBackground	If background is white MicroStation draws elements black instead of white. To do the same if background color is defined for this palette as white (element with index #254) then all elements in palette with white will be tuned to black.
	currentPalette
	defaultACadPalette
	defaultPalette
	getColorIndexByRGB	it tries to find the given RGB color within existing color tables (or add a new color to the extended color table)
	getExtendedColor	Get extended color from extended color table by dgn color index. Return true if color with requested dgn color index is present into table.
	getExtendedColorCount	Return count of extended colors into extended color table.
	getExtendedColorIndex	Return dgn color index of extended color by index into extended color table.
	hasRGBColor
	isCorrectIndex	This is the overview for the isCorrectIndex method overload.
	loadFromFile	Load color table from color resource *.tbl file.
	lookupRGB	This is the overview for the lookupRGB method overload.
	lookupTrueColor	use the color tables of the given database to search for the color (either ordinary or extended ones); returns zero if fails (+the method to check indices)
	palette
	saveToFile	Save color table to color resource *.tbl file.
	setExtendedColor	Set extended color to extended color table by dgn color index. Return true if color with requested dgn color index is presented into table and modification of color successfully finished.
	setPalette

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