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import guid from '../../utils/guid'; import { PubSubService } from '../_shared/pubSubServiceInterface'; /** * Measurement source schema * * @typedef {Object} MeasurementSource * @property {number} id - * @property {string} name - * @property {string} version - */ /** * Measurement schema * * @typedef {Object} Measurement * @property {number} uid - * @property {string} SOPInstanceUID - * @property {string} FrameOfReferenceUID - * @property {string} referenceSeriesUID - * @property {string} label - * @property {string} description - * @property {string} type - * @property {string} unit - * @property {number} area - * @property {Array} points - * @property {MeasurementSource} source - * @property {boolean} selected - */ /* Measurement schema keys for object validation. */ const MEASUREMENT_SCHEMA_KEYS = [ 'uid', 'color', 'data', 'getReport', 'displayText', 'SOPInstanceUID', 'FrameOfReferenceUID', 'referenceStudyUID', 'referenceSeriesUID', 'frameNumber', 'displaySetInstanceUID', 'label', 'isLocked', 'isVisible', 'description', 'type', 'unit', 'points', 'source', 'toolName', 'metadata', // Todo: we shouldn't need to have all these here. 'area', // TODO: Add concept names instead (descriptor) 'mean', 'stdDev', 'perimeter', 'length', 'shortestDiameter', 'longestDiameter', 'cachedStats', 'isSelected', 'textBox', 'referencedImageId', 'isDirty', ]; const EVENTS = { MEASUREMENT_UPDATED: 'event::measurement_updated', INTERNAL_MEASUREMENT_UPDATED: 'event:internal_measurement_updated', MEASUREMENT_ADDED: 'event::measurement_added', RAW_MEASUREMENT_ADDED: 'event::raw_measurement_added', MEASUREMENT_REMOVED: 'event::measurement_removed', MEASUREMENTS_CLEARED: 'event::measurements_cleared', // Give the viewport a chance to jump to the measurement JUMP_TO_MEASUREMENT_VIEWPORT: 'event:jump_to_measurement_viewport', // Give the layout a chance to jump to the measurement JUMP_TO_MEASUREMENT_LAYOUT: 'event:jump_to_measurement_layout', }; const VALUE_TYPES = { ANGLE: 'value_type::polyline', POLYLINE: 'value_type::polyline', POINT: 'value_type::point', BIDIRECTIONAL: 'value_type::shortAxisLongAxis', // TODO -> Discuss with Danny. => just using SCOORD values isn't enough here. ELLIPSE: 'value_type::ellipse', RECTANGLE: 'value_type::rectangle', MULTIPOINT: 'value_type::multipoint', CIRCLE: 'value_type::circle', ROI_THRESHOLD: 'value_type::roiThreshold', ROI_THRESHOLD_MANUAL: 'value_type::roiThresholdManual', }; enum MeasurementChangeType { HandlesUpdated = 'HandlesUpdated', LabelChange = 'LabelChange', } export type MeasurementFilter = (measurement) => boolean; /** * MeasurementService class that supports source management and measurement management. * Sources can be any library that can provide "annotations" (e.g. cornerstone-tools, cornerstone, etc.) * The flow, is that by creating a source and mappings (annotation <-> measurement), we * can convert back and forth between the two. MeasurementPanel in OHIF uses the measurement service * to manage the measurements, and any edit to the measurements will be reflected back at the * library level state (e.g. cornerstone-tools, cornerstone, etc.) by converting the * edited measurements back to the original annotations and then updating the annotations. * * Note and Todo: We should be able to support measurements that are composed of multiple * annotations, but that is not the case at the moment. */ class MeasurementService extends PubSubService { public static REGISTRATION = { name: 'measurementService', altName: 'MeasurementService', create: _options => { return new MeasurementService(); }, }; public static readonly EVENTS = EVENTS; public static VALUE_TYPES = VALUE_TYPES; public readonly VALUE_TYPES = VALUE_TYPES; private measurements = new Map(); private unmappedMeasurements = new Map(); private isMeasurementDeletedIndividually: boolean; private sources = {}; private mappings = {}; constructor() { super(EVENTS); } /** * Adds the given schema to the measurement service schema list. * This method should be used to add custom tool schema to the measurement service. * @param {Array} schema schema for validation */ public addMeasurementSchemaKeys(schema): void { Iif (!Array.isArray(schema)) { schema = [schema]; } MEASUREMENT_SCHEMA_KEYS.push(...schema); } /** * Adds the given valueType to the measurement service valueType object. * This method should be used to add custom valueType to the measurement service. * @param {*} valueType * @returns */ addValueType(valueType) { Iif (VALUE_TYPES[valueType]) { return; } // check if valuetype is valid , and if values are strings Iif (!valueType || typeof valueType !== 'object') { console.warn(`MeasurementService: addValueType: invalid valueType: ${valueType}`); return; } Object.keys(valueType).forEach(key => { Iif (!VALUE_TYPES[key]) { VALUE_TYPES[key] = valueType[key]; } }); } /** * Gets measurements, optionally filtered by the filter * function. * * @return {Measurement[]} Array of measurements */ public getMeasurements(filter?: MeasurementFilter) { const measurements = [...this.measurements.values()]; return filter ? measurements.filter(measurement => filter.call(this, measurement)) : measurements; } /** * Get specific measurement by its uid. * * @param {string} uid measurement uid * @return {Measurement} Measurement instance */ public getMeasurement(measurementUID: string) { return this.measurements.get(measurementUID); } public setMeasurementSelected(measurementUID: string, selected: boolean): void { const measurement = this.getMeasurement(measurementUID); if (!measurement) { return; } measurement.isSelected = selected; this._broadcastEvent(this.EVENTS.MEASUREMENT_UPDATED, { source: measurement.source, measurement, notYetUpdatedAtSource: false, }); } /** * Create a new source. * * @param {string} name Name of the source * @param {string} version Source name * @return {MeasurementSource} Measurement source instance */ createSource(name, version) { Iif (!name) { throw new Error('Source name not provided.'); } Iif (!version) { throw new Error('Source version not provided.'); } // Go over all the keys inside the sources and check if the source // name and version matches with the existing sources. const sourceKeys = Object.keys(this.sources); for (let i = 0; i < sourceKeys.length; i++) { const source = this.sources[sourceKeys[i]]; Iif (source.name === name && source.version === version) { return source; } } const uid = guid(); const source = { uid, name, version, }; source.annotationToMeasurement = (annotationType, annotation, isUpdate = false) => { return this.annotationToMeasurement(source, annotationType, annotation, isUpdate); }; source.remove = (measurementUID, eventDetails) => { return this.remove(measurementUID, source, eventDetails); }; source.getAnnotation = (annotationType, measurementId) => { return this.getAnnotation(source, annotationType, measurementId); }; log.info(`New '${name}@${version}' source added.`); this.sources[uid] = source; return source; } getSource(name, version) { const { sources } = this; const uid = this._getSourceUID(name, version); return sources[uid]; } getSourceMappings(name, version) { const { mappings } = this; const uid = this._getSourceUID(name, version); return mappings[uid]; } /** * Add a new measurement matching criteria along with mapping functions. * * @param {MeasurementSource} source Measurement source instance * @param {string} annotationType annotation type to match which can be e.g., Length, Bidirectional, etc. * @param {MatchingCriteria} matchingCriteria The matching criteria * @param {Function} toAnnotationSchema Mapping function to annotation schema * @param {Function} toMeasurementSchema Mapping function to measurement schema * @return void */ addMapping(source, annotationType, matchingCriteria, toAnnotationSchema, toMeasurementSchema) { Iif (!this._isValidSource(source)) { throw new Error('Invalid source.'); } Iif (!matchingCriteria) { throw new Error('Matching criteria not provided.'); } Iif (!annotationType) { throw new Error('annotationType not provided.'); } Iif (!toAnnotationSchema) { throw new Error('Mapping function to source schema not provided.'); } Iif (!toMeasurementSchema) { throw new Error('Measurement mapping function not provided.'); } const mapping = { matchingCriteria, annotationType, toAnnotationSchema, toMeasurementSchema, }; if (Array.isArray(this.mappings[source.uid])) { this.mappings[source.uid].push(mapping); } else { this.mappings[source.uid] = [mapping]; } // log.info(`New measurement mapping added to source '${this._getSourceToString(source)}'.`); } /** * Get annotation for specific source. * * @param {MeasurementSource} source Measurement source instance * @param {string} annotationType The source annotationType * @param {string} measurementUID The measurement service measurement uid * @return {Object} Source measurement schema */ getAnnotation(source, annotationType, measurementUID) { Iif (!this._isValidSource(source)) { log.warn('Invalid source. Exiting early.'); return; } Iif (!annotationType) { log.warn('No source annotationType provided. Exiting early.'); return; } const measurement = this.getMeasurement(measurementUID); const mapping = this._getMappingByMeasurementSource(measurement, annotationType); Iif (mapping) { return mapping.toAnnotationSchema(measurement, annotationType); } const matchingMapping = this._getMatchingMapping(source, annotationType, measurement); Iif (matchingMapping) { log.info('Matching mapping found:', matchingMapping); const { toAnnotationSchema, annotationType } = matchingMapping; return toAnnotationSchema(measurement, annotationType); } } update(measurementUID: string, measurement, notYetUpdatedAtSource = false) { Iif (!this.measurements.has(measurementUID)) { return; } const updatedMeasurement = { ...measurement, modifiedTimestamp: Math.floor(Date.now() / 1000), }; log.info(`Updating internal measurement representation...`, updatedMeasurement); this.measurements.set(measurementUID, updatedMeasurement); this._broadcastEvent(this.EVENTS.MEASUREMENT_UPDATED, { source: measurement.source, measurement: updatedMeasurement, notYetUpdatedAtSource, }); return updatedMeasurement.uid; } /** * Add a raw measurement into a source so that it may be * Converted to/from annotation in the same way. E.g. import serialized data * of the same form as the measurement source. * @param {MeasurementSource} source The measurement source instance. * @param {string} annotationType The source annotationType you want to add the measurement to. * @param {object} data The data you wish to add to the source. * @param {function} toMeasurementSchema A function to get the `data` into the same shape as the source annotationType. */ addRawMeasurement(source, annotationType, data, toMeasurementSchema, dataSource = {}) { Iif (!this._isValidSource(source)) { log.warn('Invalid source. Exiting early.'); return; } const sourceInfo = this._getSourceToString(source); Iif (!annotationType) { log.warn('No source annotationType provided. Exiting early.'); return; } Iif (!this._sourceHasMappings(source)) { log.warn(`No measurement mappings found for '${sourceInfo}' source. Exiting early.`); return; } let measurement = {}; try { measurement = toMeasurementSchema(data); Iif (!measurement) { return; } measurement.source = source; } catch (error) { log.warn( `Failed to map '${sourceInfo}' measurement for annotationType ${annotationType}:`, error ); return; } Iif (!this._isValidMeasurement(measurement)) { log.warn( `Attempting to add or update a invalid measurement provided by '${sourceInfo}'. Exiting early.` ); return; } let internalUID = data.id; if (!internalUID) { internalUID = guid(); log.warn(`Measurement ID not found. Generating UID: ${internalUID}`); } const annotationData = data.annotation.data; const newMeasurement = { finding: annotationData.finding, findingSites: annotationData.findingSites, site: annotationData.findingSites?.[0], ...measurement, modifiedTimestamp: Math.floor(Date.now() / 1000), uid: internalUID, }; Iif (this.measurements.get(internalUID)) { this.measurements.set(internalUID, newMeasurement); this._broadcastEvent(this.EVENTS.MEASUREMENT_UPDATED, { source, measurement: newMeasurement, }); } else { log.info('Measurement added', newMeasurement); this.measurements.set(internalUID, newMeasurement); this._broadcastEvent(this.EVENTS.RAW_MEASUREMENT_ADDED, { source, measurement: newMeasurement, data, dataSource, }); } return newMeasurement.uid; } /** * Adds or update persisted measurements. * * @param {MeasurementSource} source The measurement source instance * @param {string} annotationType The source annotationType * @param {EventDetail} sourceAnnotationDetail for the annotation event * @param {boolean} isUpdate is this an update or an add/completed instead? * @return {string} A measurement uid */ annotationToMeasurement(source, annotationType, sourceAnnotationDetail, isUpdate = false) { Iif (!this._isValidSource(source)) { throw new Error('Invalid source.'); } Iif (!annotationType) { throw new Error('No source annotationType provided.'); } const sourceInfo = this._getSourceToString(source); Iif (!this._sourceHasMappings(source)) { throw new Error(`No measurement mappings found for '${sourceInfo}' source. Exiting early.`); } let measurement = {}; try { const sourceMappings = this.mappings[source.uid]; const sourceMapping = sourceMappings.find( mapping => mapping.annotationType === annotationType ); if (!sourceMapping) { console.log('No source mapping', source); return; } const { toMeasurementSchema } = sourceMapping; /* Convert measurement */ measurement = toMeasurementSchema(sourceAnnotationDetail); if (!measurement) { return; } measurement.source = source; } catch (error) { // Todo: handle other this.unmappedMeasurements.set(sourceAnnotationDetail.uid, { ...sourceAnnotationDetail, source: { name: source.name, version: source.version, uid: source.uid, }, }); console.log('Failed to map', error); throw new Error( `Failed to map '${sourceInfo}' measurement for annotationType ${annotationType}: ${error.message}` ); } Iif (!this._isValidMeasurement(measurement)) { throw new Error( `Attempting to add or update a invalid measurement provided by '${sourceInfo}'. Exiting early.` ); } // Todo: we are using uid on the eventDetail, it should be uid of annotation let internalUID = sourceAnnotationDetail.uid; Iif (!internalUID) { internalUID = guid(); log.info( `Annotation does not have UID, Generating UID for the created Measurement: ${internalUID}` ); } const oldMeasurement = this.measurements.get(internalUID); const newMeasurement = { ...oldMeasurement, ...measurement, modifiedTimestamp: Math.floor(Date.now() / 1000), uid: internalUID, }; newMeasurement.isDirty = sourceAnnotationDetail.changeType === MeasurementChangeType.HandlesUpdated || sourceAnnotationDetail.changeType === MeasurementChangeType.LabelChange || oldMeasurement?.isDirty; if (oldMeasurement) { // TODO: Ultimately, each annotation should have a selected flag right from the source. // For now, it is just added in OHIF here and in setMeasurementSelected. this.measurements.set(internalUID, newMeasurement); if (isUpdate) { this._broadcastEvent(this.EVENTS.MEASUREMENT_UPDATED, { source, measurement: newMeasurement, notYetUpdatedAtSource: false, }); } else { log.info('Measurement added.', newMeasurement); this._broadcastEvent(this.EVENTS.MEASUREMENT_ADDED, { source, measurement: newMeasurement, }); } } else { log.info('Measurement started.', newMeasurement); this.measurements.set(internalUID, newMeasurement); } return newMeasurement.uid; } /** * Removes a measurement and broadcasts the removed event. * * @param {string} measurementUID The measurement uid */ remove(measurementUID: string): void { const measurement = this.measurements.get(measurementUID) || this.unmappedMeasurements.get(measurementUID); Iif (!measurementUID || !measurement) { console.debug(`No uid provided, or unable to find measurement by uid.`); return; } const source = measurement.source; this.unmappedMeasurements.delete(measurementUID); this.measurements.delete(measurementUID); this.isMeasurementDeletedIndividually = true; this._broadcastEvent(this.EVENTS.MEASUREMENT_REMOVED, { source, measurement: measurementUID, }); } /** * Remove multiple measurements at once. */ removeMany(measurementUIDs: string[]): void { const measurements = []; for (const measurementUID of measurementUIDs) { const measurement = this.measurements.get(measurementUID) || this.unmappedMeasurements.get(measurementUID); Iif (!measurementUID || !measurement) { console.debug(`No uid provided, or unable to find measurement by uid.`); continue; } this.unmappedMeasurements.delete(measurementUID); this.measurements.delete(measurementUID); measurements.push(measurement); } Iif (!measurements.length) { return; } this._broadcastEvent(this.EVENTS.MEASUREMENTS_CLEARED, { measurements }); } /** * Clears measurements that match the filter, defaulting to all of them. * That allows, for example, clearing all of a single studies measurements * without needing to clear other measurements. */ public clearMeasurements(filter?: MeasurementFilter) { // Make a copy of the measurements const toClear = this.getMeasurements(filter); const unmappedClear = filter ? [...this.unmappedMeasurements.values()].filter(filter) : this.unmappedMeasurements; const measurements = [...toClear, ...unmappedClear]; unmappedClear.forEach(measurement => this.unmappedMeasurements.delete(measurement.uid)); toClear.forEach(measurement => this.measurements.delete(measurement.uid)); this._broadcastEvent(this.EVENTS.MEASUREMENTS_CLEARED, { measurements }); } /** * Called after the mode.onModeExit is called to reset the state. * To store measurements for later use, store them in the mode.onModeExit * and restore them in the mode onModeEnter. */ onModeExit() { this.clearMeasurements(); } /** * This method calls the subscriptions for JUMP_TO_MEASUREMENT_VIEWPORT * and JUMP_TO_MEASUREMENT_LAYOUT. There are two events which are * fired because there are two different items which might want to handle * the event. First, there might already be a viewport which can handle * the event. If so, then the layout doesn't need to necessarily change. * This is communicated by the isConsumed value on the event itself. * Otherwise, the layout itself may need to be navigated to in order * to provide a viewport which can show the given measurement. * * When a viewport decides to apply the event, it should call the consume() * method on the event, so that other listeners know they do not need to * navigate. This does NOT affect whether the layout event is fired, and * merely causes it to fire the event with the isConsumed set to true. */ public jumpToMeasurement(viewportId: string, measurementUID: string): void { const measurement = this.measurements.get(measurementUID); Iif (!measurement) { log.warn(`No measurement uid, or unable to find by uid.`); return; } const consumableEvent = this.createConsumableEvent({ viewportId, measurement, }); // Important: we should broadcast the layout event first, since // in the layout there might be a viewport that we can match and choose // and jump in it before we decide on changing the orientation of different viewports this._broadcastEvent(EVENTS.JUMP_TO_MEASUREMENT_LAYOUT, consumableEvent); this._broadcastEvent(EVENTS.JUMP_TO_MEASUREMENT_VIEWPORT, consumableEvent); } _getSourceUID(name, version) { const { sources } = this; const sourceUID = Object.keys(sources).find(sourceUID => { const source = sources[sourceUID]; return source.name === name && source.version === version; }); return sourceUID; } _getMappingByMeasurementSource(measurement, annotationType) { Iif (this._isValidSource(measurement.source)) { return this.mappings[measurement.source.uid].find(m => m.annotationType === annotationType); } } /** * Get measurement mapping function if matching criteria. * * @param {MeasurementSource} source Measurement source instance * @param {string} annotationType The source annotationType * @param {Measurement} measurement The measurement service measurement * @return {Object} The mapping based on matched criteria */ _getMatchingMapping(source, annotationType, measurement) { const sourceMappings = this.mappings[source.uid]; const sourceMappingsByDefinition = sourceMappings.filter( mapping => mapping.annotationType === annotationType ); /* Criteria Matching */ return sourceMappingsByDefinition.find(({ matchingCriteria }) => { return measurement.points && measurement.points.length === matchingCriteria.points; }); } /** * Returns formatted string with source info. * * @param {MeasurementSource} source Measurement source * @return {string} Source information */ _getSourceToString(source) { return `${source.name}@${source.version}`; } /** * Checks if given source is valid. * * @param {MeasurementSource} source Measurement source * @return {boolean} Measurement source validation */ _isValidSource(source) { return source && this.sources[source.uid]; } /** * Checks if a given source has mappings. * * @param {MeasurementSource} source The measurement source * @return {boolean} Validation if source has mappings */ _sourceHasMappings(source) { return Array.isArray(this.mappings[source.uid]) && this.mappings[source.uid].length; } /** * Check if a given measurement data is valid. * * @param {Measurement} measurementData Measurement data * @return {boolean} Measurement validation */ _isValidMeasurement(measurementData) { return Object.keys(measurementData).every(key => { Iif (!MEASUREMENT_SCHEMA_KEYS.includes(key)) { log.warn(`Invalid measurement key: ${key}`); return false; } return true; }); } /** * Check if a given measurement service event is valid. * * @param {string} eventName The name of the event * @return {boolean} Event name validation // */ // _isValidEvent(eventName) { // return Object.values(this.EVENTS).includes(eventName); // } /** * Converts object of objects to array. * * @return {Array} Array of objects */ _arrayOfObjects = obj => { return Object.entries(obj).map(e => ({ [e[0]]: e[1] })); }; public toggleLockMeasurement(measurementUID: string): void { const measurement = this.measurements.get(measurementUID); Iif (!measurement) { console.debug(`No measurement found for uid: ${measurementUID}`); return; } measurement.isLocked = !measurement.isLocked; this._broadcastEvent(this.EVENTS.MEASUREMENT_UPDATED, { source: measurement.source, measurement, notYetUpdatedAtSource: true, }); } public toggleVisibilityMeasurement(measurementUID: string, visibility?: boolean): void { const measurement = this.measurements.get(measurementUID); Iif (!measurement) { console.debug(`No measurement found for uid: ${measurementUID}`); return; } Iif (measurement.isVisible === visibility && visibility !== undefined) { return; } measurement.isVisible = visibility !== undefined ? visibility : !measurement.isVisible; this._broadcastEvent(this.EVENTS.MEASUREMENT_UPDATED, { source: measurement.source, measurement, notYetUpdatedAtSource: true, }); } public toggleVisibilityMeasurementMany(measurementUIDs: string[], visibility?: boolean): void { return measurementUIDs.forEach(uid => this.toggleVisibilityMeasurement(uid, visibility)); } public updateColorMeasurement(measurementUID: string, color: number[]): void { const measurement = this.measurements.get(measurementUID); Iif (!measurement) { console.debug(`No measurement found for uid: ${measurementUID}`); return; } measurement.color = color; this._broadcastEvent(this.EVENTS.MEASUREMENT_UPDATED, { source: measurement.source, measurement, notYetUpdatedAtSource: true, }); } public setIsMeasurementDeletedIndividually = isDeletedIndividually => { this.isMeasurementDeletedIndividually = isDeletedIndividually; }; public getIsMeasurementDeletedIndividually = () => { return this.isMeasurementDeletedIndividually; }; } export default MeasurementService; export { EVENTS, VALUE_TYPES }; |