javascript
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three.js
espejo de https://github.com/tazdij/three.js.git


			
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		<h1>[name]</h1>

		<p class="desc">
		Represents a lookup table for colormaps. It is used to determine the color values from a range of data values.
		</p>

		<h2>Code Example</h2>

		<code>
		const lut = new Lut( 'rainbow', 512 );
		const color = lut.getColor( 0.5 );
		</code>

		<h2>Constructor</h2>


		<h3>[name]( [param:String colormap], [param:Number count] )</h3>
		<p>
		colormap - Sets a colormap from predefined colormaps. Available colormaps are: `rainbow`, `cooltowarm`, `blackbody`, `grayscale`. Default is `rainbow`.<br />
		count - Sets the number of colors used to represent the data array. Default is `32`.
		</p>

		<h2>Properties</h2>

		<h3>[property:Array lut]</h3>
		<p>
		The lookup table for the selected color map represented as an array of [page:Color]s.
		</p>

		<h3>[property:Array map]</h3>
		<p>
		The currently selected color map. Default is the `rainbow` color map.
		</p>

		<h3>[property:Number minV]</h3>
		<p>
		The minimum value to be represented with the lookup table. Default is *0*.
		</p>

		<h3>[property:Number maxV]</h3>
		<p>
		The maximum value to be represented with the lookup table. Default is *1*.
		</p>

		<h3>[property:Number n]</h3>
		<p>
		The number of colors of the current selected color map. Default is `32`.
		</p>

		<h2>Methods</h2>

		<h3>[method:this copy]( [param:Lut lut] ) [param:Lut this]</h3>
		<p>
		color — Lut to copy.
		</p>
		<p>
		Copies the given lut.
		</p>

		<h3>[method:this addColorMap]( [param:String name], [param:Array arrayOfColors] )</h3>
		<p>
		name — The name of the color map.<br />
		arrayOfColors — An array of color values. Each value is an array holding a threshold and the actual color value as a hexadecimal number.
		</p>
		<p>
		Adds a color map to this [name] instance.
		</p>

		<h3>[method:HTMLCanvasElement createCanvas]()</h3>
		<p>
		Creates a canvas in order to visualize the lookup table as a texture.
		</p>

		<h3>[method:Color getColor]( [param:Number alpha] )</h3>
		<p>
		value -- the data value to be displayed as a color.
		</p>
		<p>
		Returns an instance of [page:Color] for the given data value.
		</p>

		<h3>[method:this setColorMap]( [param:String colormap], [param:Number count] )</h3>
		<p>
		colormap — The name of the color map.<br />
		count — The number of colors. Default is `32`.
		</p>
		<p>
		Configure the lookup table for the given color map and number of colors.
		</p>

		<h3>[method:this setMin]( [param:Number minV] )</h3>
		<p>
		minV — The minimum value to be represented with the lookup table
		</p>
		<p>
		Sets this Lut with the minimum value to be represented.
		</p>

		<h3>[method:this setMax]( [param:Number maxV] )</h3>
		<p>
		maxV — The maximum value to be represented with the lookup table.
		</p>
		<p>
		Sets this Lut with the maximum value to be represented.
		</p>

		<h3>[method:HTMLCanvasElement updateCanvas]( [param:HTMLCanvasElement canvas] )</h3>
		<p>
		Updates the canvas with the [name]'s data.
		</p>

		<h2>Source</h2>

		<p>
			[link:https://github.com/mrdoob/three.js/blob/master/examples/jsm/math/Lut.js examples/jsm/math/Lut.js]
		</p>
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