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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | 230x 230x 230x 230x 230x 58650x 58650x 230x 230x 230x | import { type Types, utilities } from '@cornerstonejs/core';
import { defaultSegmentationStateManager } from './SegmentationStateManager';
import { getNextColorLUTIndex } from './getNextColorLUTIndex';
import CORNERSTONE_COLOR_LUT from '../../constants/COLOR_LUT';
/**
* Add a color LUT to the segmentation state manager
* @param colorLUT - The color LUT array to add.
* @param index - The index of the color LUT to add.
*
* If no index is provided, the next available index will be used.
*
* @returns The index of the color LUT that was added.
*/
export function addColorLUT(colorLUT: Types.ColorLUT, index?: number): number {
const segmentationStateManager = defaultSegmentationStateManager;
const indexToUse = index ?? getNextColorLUTIndex();
let colorLUTToUse = [...colorLUT] as Types.ColorLUT;
// Make sure the colorLUT always starts with [0, 0, 0, 0] for the background color
Iif (!utilities.isEqual(colorLUTToUse[0], [0, 0, 0, 0])) {
console.warn(
'addColorLUT: [0, 0, 0, 0] color is not provided for the background color (segmentIndex =0), automatically adding it'
);
colorLUTToUse = [[0, 0, 0, 0], ...colorLUTToUse];
}
// Ensure each color in the LUT has 4 elements (RGBA)
colorLUTToUse = colorLUTToUse.map((color) => {
// @ts-expect-error - color.length is not always 3
Iif (color.length === 3) {
return [color[0], color[1], color[2], 255] as Types.Color;
}
return color as Types.Color;
});
// Ensure the colorLUT has at least 255 entries
Iif (colorLUTToUse.length < 255) {
const missingColorLUTs = CORNERSTONE_COLOR_LUT.slice(colorLUTToUse.length);
colorLUTToUse = [...colorLUTToUse, ...missingColorLUTs] as Types.ColorLUT;
}
segmentationStateManager.addColorLUT(colorLUTToUse, indexToUse);
return indexToUse;
}
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