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import type { Types } from '@cornerstonejs/core';
import {
AnnotationCompletedEventType,
AnnotationModifiedEventType,
AnnotationRemovedEventType,
} from '../../../types/EventTypes';
import { state as annotationState } from '../../../stateManagement/annotation';
import type AnnotationGroupSelector from '../../../types/AnnotationGroupSelector';
import getInterpolationDataCollection from '../../contours/interpolation/getInterpolationDataCollection';
import type {
InterpolationViewportData,
AcceptInterpolationSelector,
} from '../../../types/InterpolationTypes';
import interpolate from '../../contours/interpolation/interpolate';
import deleteRelatedAnnotations from './deleteRelatedAnnotations';
import { InterpolationROIAnnotation } from '../../../types/ToolSpecificAnnotationTypes';
import ChangeTypes from '../../../enums/ChangeTypes';
import getViewportForAnnotation from '../../getViewportForAnnotation';
import { addContourSegmentationAnnotation } from '../../contourSegmentation/addContourSegmentationAnnotation';
const { uuidv4 } = csUtils;
const ChangeTypesForInterpolation = [
ChangeTypes.HandlesUpdated,
ChangeTypes.InterpolationUpdated,
];
export default class InterpolationManager {
static toolNames = [];
static addTool(toolName: string) {
if (!this.toolNames.includes(toolName)) {
this.toolNames.push(toolName);
}
}
/**
* Accepts the autogenerated interpolations, marking them as non-autogenerated.
* Can provide a selector to choose which ones to accept.
*
* Rules for which items to select:
* 1. Only choose annotations having the same segment index and segmentationID
* 2. Exclude all contours having the same interpolation UID as any other contours
* on the same slice.
* 3. Exclude autogenerated annotations
* 4. Exclude any reset interpolationUIDs (this is a manual operation to allow
* creating a new interpolation)
* 5. Find the set of interpolationUID's remaining
* a. If the set is of size 0, assign a new interpolationUID
* b. If the set is of size 1, assign that interpolationUID
* c. Otherwise (optional, otherwise do b for size>1 randomly),
* for every remaining annotation, find the one whose center
* point is closest to the center point of the new annotation.
* Choose that interpolationUID
*
* To allow creating new interpolated groups, the idea is to just use a new
* segment index, then have an operation to update the segment index of an
* interpolation set. That way the user can easily draw/see the difference,
* and then merge them as required.
* However, the base rules allow creating two contours on a single image to
* create a separate set.
*/
static acceptAutoGenerated(
annotationGroupSelector: AnnotationGroupSelector,
selector: AcceptInterpolationSelector = {}
) {
const { toolNames, segmentationId, segmentIndex, sliceIndex } = selector;
for (const toolName of toolNames || InterpolationManager.toolNames) {
const annotations = annotationState.getAnnotations(
toolName,
annotationGroupSelector
) as InterpolationROIAnnotation[];
if (!annotations?.length) {
continue;
}
for (const annotation of annotations) {
const { interpolationUID, data, autoGenerated, metadata } = annotation;
if (interpolationUID) {
annotation.interpolationCompleted = true;
}
if (!autoGenerated) {
continue;
}
if (segmentIndex && segmentIndex !== data.segmentation.segmentIndex) {
continue;
}
if (
sliceIndex !== undefined &&
metadata &&
sliceIndex !== metadata.sliceIndex
) {
continue;
}
if (
segmentationId &&
segmentationId !== data.segmentation.segmentationId
) {
continue;
}
addContourSegmentationAnnotation(annotation);
annotation.autoGenerated = false;
}
}
}
/**
* When an annotation is completed, if the configuration includes interpolation,
* then find matching interpolations and interpolation between this segmentation
* and the other segmentations of the same type.
*/
static handleAnnotationCompleted = (evt: AnnotationCompletedEventType) => {
const annotation = evt.detail.annotation as InterpolationROIAnnotation;
Iif (!annotation?.metadata) {
return;
}
const { toolName, originalToolName } = annotation.metadata;
if (
!this.toolNames.includes(toolName) &&
!this.toolNames.includes(originalToolName)
) {
return;
}
const viewport = getViewportForAnnotation(annotation);
Iif (!viewport) {
console.warn('Unable to find viewport for', annotation);
return;
}
const sliceData: Types.ImageSliceData = getSliceData(viewport);
const viewportData: InterpolationViewportData = {
viewport,
sliceData,
annotation,
interpolationUID: annotation.interpolationUID,
};
const hasInterpolationUID = !!annotation.interpolationUID;
// If any update, triggered on an annotation, then it will be treated as non-autogenerated.
annotation.autoGenerated = false;
if (hasInterpolationUID) {
// This has already been configured with matching details, so just run
// the interpolation again.
deleteRelatedAnnotations(viewportData);
interpolate(viewportData);
return;
}
const filterData = [
{
key: 'segmentIndex',
value: annotation.data.segmentation.segmentIndex,
parentKey: (annotation) => annotation.data.segmentation,
},
{
key: 'viewPlaneNormal',
value: annotation.metadata.viewPlaneNormal,
parentKey: (annotation) => annotation.metadata,
},
{
key: 'viewUp',
value: annotation.metadata.viewUp,
parentKey: (annotation) => annotation.metadata,
},
];
let interpolationAnnotations = getInterpolationDataCollection(
viewportData,
filterData
);
// Skip other type of annotation interpolationUID's that are co-located
const { sliceIndex } = annotation.metadata;
const skipUIDs = new Set<string>();
interpolationAnnotations.forEach((interpolationAnnotation) => {
if (
interpolationAnnotation.interpolationCompleted ||
interpolationAnnotation.metadata.sliceIndex === sliceIndex
) {
const { interpolationUID } = interpolationAnnotation;
skipUIDs.add(interpolationUID);
}
});
interpolationAnnotations = interpolationAnnotations.filter(
(interpolationAnnotation) =>
!skipUIDs.has(interpolationAnnotation.interpolationUID)
);
// Assign a new interpolationUID (this is checked above, so will be empty initially)
annotation.interpolationUID =
interpolationAnnotations[0]?.interpolationUID || uuidv4();
viewportData.interpolationUID = annotation.interpolationUID;
interpolate(viewportData);
};
/**
* This method gets called when an annotation changes. It will then trigger
* related already interpolated annotations to be updated with the modified data.
*/
static handleAnnotationUpdate = (evt: AnnotationModifiedEventType) => {
const annotation = evt.detail.annotation as InterpolationROIAnnotation;
const { changeType = ChangeTypes.HandlesUpdated } = evt.detail;
Iif (!annotation?.metadata) {
return;
}
const { toolName, originalToolName } = annotation.metadata;
Eif (
(!this.toolNames.includes(toolName) &&
!this.toolNames.includes(originalToolName)) ||
!ChangeTypesForInterpolation.includes(changeType)
) {
return;
}
const viewport = getViewportForAnnotation(annotation);
if (!viewport) {
console.warn(
'Unable to find matching viewport for annotation interpolation',
annotation
);
return;
}
if (annotation.autoGenerated) {
// Dont fire the annotation changed events here, as that leads to recursion,
// although this is in fact completing the event, so trigger the segmentation add
addContourSegmentationAnnotation(annotation);
annotation.autoGenerated = false;
}
const sliceData: Types.ImageSliceData = getSliceData(viewport);
const viewportData: InterpolationViewportData = {
viewport,
sliceData,
annotation,
interpolationUID: annotation.interpolationUID,
isInterpolationUpdate: changeType === ChangeTypes.InterpolationUpdated,
};
interpolate(viewportData);
};
/**
* Delete interpolated annotations when their endpoints are deleted.
*/
static handleAnnotationDelete = (evt: AnnotationRemovedEventType) => {
const annotation = evt.detail.annotation as InterpolationROIAnnotation;
Iif (!annotation?.metadata) {
return;
}
const { toolName } = annotation.metadata;
if (!this.toolNames.includes(toolName) || annotation.autoGenerated) {
return;
}
const viewport = getViewportForAnnotation(annotation);
Iif (!viewport) {
console.warn(
"No viewport, can't delete interpolated results",
annotation
);
return;
}
const sliceData: Types.ImageSliceData = getSliceData(viewport);
const viewportData: InterpolationViewportData = {
viewport,
sliceData,
annotation,
interpolationUID: annotation.interpolationUID,
};
// If any update, triggered on an annotation, then it will be treated as non-interpolated.
annotation.autoGenerated = false;
deleteRelatedAnnotations(viewportData);
};
}
function getSliceData(viewport): Types.ImageSliceData {
const sliceData: Types.ImageSliceData = {
numberOfSlices: viewport.getNumberOfSlices(),
imageIndex: viewport.getCurrentImageIdIndex(),
};
return sliceData;
}
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