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DERIVED_OVERLAY_MODALITIES,
isDisplaySetOverlayable,
} from '../../utils/isDisplaySetOverlayable';
export const DEFAULT_COLORMAP = 'hsv';
export const DEFAULT_OPACITY = 0.5;
export const DEFAULT_OPACITY_PERCENT = DEFAULT_OPACITY * 100;
export { DERIVED_OVERLAY_MODALITIES };
/**
* Get modality-specific color and opacity settings from the customization service
*/
export function getModalityOverlayColormap(customizationService, modality) {
const modalityOverlayDefaultColorMaps = customizationService?.getCustomization(
'cornerstone.modalityOverlayDefaultColorMaps'
) || { defaultSettings: {} };
return (
modalityOverlayDefaultColorMaps.defaultSettings[modality] || {
colormap: DEFAULT_COLORMAP,
opacity: DEFAULT_OPACITY,
}
);
}
/**
* Identifies display sets that can be used as overlays for a specific viewport.
*
* "Enhanced" display sets are those that:
* 1. Are not already in the viewport
* 2. Are evaluated for their ability to be overlaid onto the background display set
* 3. Have an "isOverlayable" flag indicating if they're compatible with the viewport
*
* This is the viewport-driven caller of `isDisplaySetOverlayable`: it resolves
* the viewport's background display set and applies the shared rule to every
* other display set. The rule itself lives in utils/isDisplaySetOverlayable so
* that hydration - which has no viewport to start from - can use it too.
*
* @returns {Object} Object containing:
* - viewportDisplaySets: Display sets already in the viewport
* - enhancedDisplaySets: Other display sets with overlayability assessment
*/
export function getEnhancedDisplaySets({ viewportId, services }) {
const { displaySetService, viewportGridService } = services;
const displaySetsUIDs = viewportGridService.getDisplaySetsUIDsForViewport(viewportId);
Iif (!displaySetsUIDs?.length) {
return {
viewportDisplaySets: [],
enhancedDisplaySets: [],
};
}
const allDisplaySets = displaySetService.getActiveDisplaySets();
const otherDisplaySets = allDisplaySets.filter(
displaySet => !displaySetsUIDs.includes(displaySet.displaySetInstanceUID)
);
const viewportDisplaySets = displaySetsUIDs.map(displaySetUID =>
displaySetService.getDisplaySetByUID(displaySetUID)
);
const backgroundDisplaySet = viewportDisplaySets[0];
const enhancedDisplaySets = otherDisplaySets.map(displaySet => ({
...displaySet,
isOverlayable: isDisplaySetOverlayable({ displaySet, backgroundDisplaySet }),
}));
return {
viewportDisplaySets,
enhancedDisplaySets,
};
}
/**
* Sort function: puts disabled items (isOverlayable: false) at the end
*/
export const sortByOverlayable = (a, b) => {
if (a.isOverlayable === b.isOverlayable) {
return 0;
}
return a.isOverlayable ? -1 : 1;
};
/**
* Create display set options based on modality and opacity settings
*/
export function createColormapOverlayDisplaySetOptions(displaySet, opacity, customizationService) {
Iif (displaySet.Modality === 'SEG') {
return {};
}
const modalitySettings = getModalityOverlayColormap(customizationService, displaySet.Modality);
return {
colormap: {
name: modalitySettings.colormap || DEFAULT_COLORMAP,
opacity: opacity / 100, // Convert from percentage to 0-1 range
},
};
}
/**
* Get segmentations that can be added as overlays to the viewport
*
* Note: This function is deprecated as we now use display sets for segmentations
*/
export function getAvailableSegmentations(segmentationService) {
const segmentations = segmentationService.getSegmentations() || [];
return segmentations.map(segmentation => ({
segmentationId: segmentation.segmentationId,
label: segmentation.label || 'Segmentation',
segments: segmentation.segments,
frameOfReferenceUID: segmentation.frameOfReferenceUID,
}));
}
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