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import {
getEnabledElement,
VolumeViewport,
utilities as csUtils,
} from '@cornerstonejs/core';
import type { Types } from '@cornerstonejs/core';
import { getCalibratedAspect } from '../../utilities/getCalibratedUnits';
import { getCalibratedLengthUnitsAndScale, roundNumber } from '../../utilities';
import throttle from '../../utilities/throttle';
import {
addAnnotation,
getAnnotations,
removeAnnotation,
} from '../../stateManagement/annotation/annotationState';
import { isAnnotationLocked } from '../../stateManagement/annotation/annotationLocking';
import { isAnnotationVisible } from '../../stateManagement/annotation/annotationVisibility';
import {
triggerAnnotationCompleted,
triggerAnnotationModified,
} from '../../stateManagement/annotation/helpers/state';
import {
drawCircle as drawCircleSvg,
drawHandles as drawHandlesSvg,
drawLinkedTextBox as drawLinkedTextBoxSvg,
} from '../../drawingSvg';
import { state } from '../../store';
import { Events } from '../../enums';
import { getViewportIdsWithToolToRender } from '../../utilities/viewportFilters';
import { getTextBoxCoordsCanvas } from '../../utilities/drawing';
import getWorldWidthAndHeightFromTwoPoints from '../../utilities/planar/getWorldWidthAndHeightFromTwoPoints';
import {
resetElementCursor,
hideElementCursor,
} from '../../cursors/elementCursor';
import {
EventTypes,
ToolHandle,
TextBoxHandle,
PublicToolProps,
ToolProps,
SVGDrawingHelper,
} from '../../types';
import { CircleROIAnnotation } from '../../types/ToolSpecificAnnotationTypes';
import triggerAnnotationRenderForViewportIds from '../../utilities/triggerAnnotationRenderForViewportIds';
import { pointInShapeCallback } from '../../utilities';
import { StyleSpecifier } from '../../types/AnnotationStyle';
import { getModalityUnit } from '../../utilities/getModalityUnit';
import { isViewportPreScaled } from '../../utilities/viewport/isViewportPreScaled';
import {
getCanvasCircleCorners,
getCanvasCircleRadius,
} from '../../utilities/math/circle';
import { pointInEllipse } from '../../utilities/math/ellipse';
import { BasicStatsCalculator } from '../../utilities/math/basic';
const { transformWorldToIndex } = csUtils;
/**
* CircleROITool let you draw annotations that measures the statistics
* such as area, max, mean and stdDev of an elliptical region of interest.
* You can use CircleROITool in all perpendicular views (axial, sagittal, coronal).
* Note: annotation tools in cornerstone3DTools exists in the exact location
* in the physical 3d space, as a result, by default, all annotations that are
* drawing in the same frameOfReference will get shared between viewports that
* are in the same frameOfReference. Circle tool's text box lines are dynamically
* generated based on the viewport's underlying Modality. For instance, if
* the viewport is displaying CT, the text box will shown the statistics in Hounsfield units,
* and if the viewport is displaying PET, the text box will show the statistics in
* SUV units.
*
* The resulting annotation's data (statistics) and metadata (the
* state of the viewport while drawing was happening) will get added to the
* ToolState manager and can be accessed from the ToolState by calling getAnnotations
* or similar methods.
*
* Changing tool configuration (see below) you can make the tool to draw the center
* point circle with a given radius.
*
* ```js
* cornerstoneTools.addTool(CircleROITool)
*
* const toolGroup = ToolGroupManager.createToolGroup('toolGroupId')
*
* toolGroup.addTool(CircleROITool.toolName)
*
* toolGroup.addViewport('viewportId', 'renderingEngineId')
*
* toolGroup.setToolActive(CircleROITool.toolName, {
* bindings: [
* {
* mouseButton: MouseBindings.Primary, // Left Click
* },
* ],
* })
*
* // draw a circle at the center point with 4px radius.
* toolGroup.setToolConfiguration(CircleROITool.toolName, {
* centerPointRadius: 4,
* });
* ```
*
* Read more in the Docs section of the website.
*/
class CircleROITool extends AnnotationTool {
static toolName;
touchDragCallback: any;
mouseDragCallback: any;
_throttledCalculateCachedStats: any;
editData: {
annotation: any;
viewportIdsToRender: Array<string>;
handleIndex?: number;
movingTextBox?: boolean;
newAnnotation?: boolean;
hasMoved?: boolean;
} | null;
isDrawing: boolean;
isHandleOutsideImage = false;
constructor(
toolProps: PublicToolProps = {},
defaultToolProps: ToolProps = {
supportedInteractionTypes: ['Mouse', 'Touch'],
configuration: {
shadow: true,
preventHandleOutsideImage: false,
// Radius of the circle to draw at the center point of the circle.
// Set this zero(0) in order not to draw the circle.
centerPointRadius: 0,
getTextLines: defaultGetTextLines,
statsCalculator: BasicStatsCalculator,
},
}
) {
super(toolProps, defaultToolProps);
this._throttledCalculateCachedStats = throttle(
this._calculateCachedStats,
100,
{ trailing: true }
);
}
/**
* Based on the current position of the mouse and the current imageId to create
* a CircleROI Annotation and stores it in the annotationManager
*
* @param evt - EventTypes.NormalizedMouseEventType
* @returns The annotation object.
*
*/
addNewAnnotation = (
evt: EventTypes.InteractionEventType
): CircleROIAnnotation => {
const eventDetail = evt.detail;
const { currentPoints, element } = eventDetail;
const worldPos = currentPoints.world;
const enabledElement = getEnabledElement(element);
const { viewport, renderingEngine } = enabledElement;
this.isDrawing = true;
const camera = viewport.getCamera();
const { viewPlaneNormal, viewUp } = camera;
const referencedImageId = this.getReferencedImageId(
viewport,
worldPos,
viewPlaneNormal,
viewUp
);
const FrameOfReferenceUID = viewport.getFrameOfReferenceUID();
const annotation = {
highlighted: true,
invalidated: true,
metadata: {
toolName: this.getToolName(),
viewPlaneNormal: <Types.Point3>[...viewPlaneNormal],
viewUp: <Types.Point3>[...viewUp],
FrameOfReferenceUID,
referencedImageId,
},
data: {
label: '',
handles: {
textBox: {
hasMoved: false,
worldPosition: <Types.Point3>[0, 0, 0],
worldBoundingBox: {
topLeft: <Types.Point3>[0, 0, 0],
topRight: <Types.Point3>[0, 0, 0],
bottomLeft: <Types.Point3>[0, 0, 0],
bottomRight: <Types.Point3>[0, 0, 0],
},
},
points: [[...worldPos], [...worldPos]] as [
Types.Point3, // center
Types.Point3 // end
],
activeHandleIndex: null,
},
cachedStats: {},
},
};
addAnnotation(annotation, element);
const viewportIdsToRender = getViewportIdsWithToolToRender(
element,
this.getToolName()
);
this.editData = {
annotation,
viewportIdsToRender,
newAnnotation: true,
hasMoved: false,
};
this._activateDraw(element);
hideElementCursor(element);
evt.preventDefault();
triggerAnnotationRenderForViewportIds(renderingEngine, viewportIdsToRender);
return annotation;
};
/**
* It returns if the canvas point is near the provided annotation in the provided
* element or not. A proximity is passed to the function to determine the
* proximity of the point to the annotation in number of pixels.
*
* @param element - HTML Element
* @param annotation - Annotation
* @param canvasCoords - Canvas coordinates
* @param proximity - Proximity to tool to consider
* @returns Boolean, whether the canvas point is near tool
*/
isPointNearTool = (
element: HTMLDivElement,
annotation: CircleROIAnnotation,
canvasCoords: Types.Point2,
proximity: number
): boolean => {
const enabledElement = getEnabledElement(element);
const { viewport } = enabledElement;
const { data } = annotation;
const { points } = data.handles;
// For some reason Typescript doesn't understand this, so we need to be
// more specific about the type
const canvasCoordinates = points.map((p) => viewport.worldToCanvas(p)) as [
Types.Point2,
Types.Point2
];
const radius = getCanvasCircleRadius(canvasCoordinates);
const radiusPoint = getCanvasCircleRadius([
canvasCoordinates[0],
canvasCoords,
]);
if (Math.abs(radiusPoint - radius) < proximity / 2) {
return true;
}
return false;
};
toolSelectedCallback = (
evt: EventTypes.InteractionEventType,
annotation: CircleROIAnnotation
): void => {
const eventDetail = evt.detail;
const { element } = eventDetail;
annotation.highlighted = true;
const viewportIdsToRender = getViewportIdsWithToolToRender(
element,
this.getToolName()
);
this.editData = {
annotation,
viewportIdsToRender,
movingTextBox: false,
};
hideElementCursor(element);
this._activateModify(element);
const enabledElement = getEnabledElement(element);
const { renderingEngine } = enabledElement;
triggerAnnotationRenderForViewportIds(renderingEngine, viewportIdsToRender);
evt.preventDefault();
};
handleSelectedCallback = (
evt: EventTypes.InteractionEventType,
annotation: CircleROIAnnotation,
handle: ToolHandle
): void => {
const eventDetail = evt.detail;
const { element } = eventDetail;
const { data } = annotation;
annotation.highlighted = true;
let movingTextBox = false;
let handleIndex;
if ((handle as TextBoxHandle).worldPosition) {
movingTextBox = true;
} else {
const { points } = data.handles;
handleIndex = points.findIndex((p) => p === handle);
}
// Find viewports to render on drag.
const viewportIdsToRender = getViewportIdsWithToolToRender(
element,
this.getToolName()
);
this.editData = {
annotation,
viewportIdsToRender,
handleIndex,
movingTextBox,
};
this._activateModify(element);
hideElementCursor(element);
const enabledElement = getEnabledElement(element);
const { renderingEngine } = enabledElement;
triggerAnnotationRenderForViewportIds(renderingEngine, viewportIdsToRender);
evt.preventDefault();
};
_endCallback = (evt: EventTypes.InteractionEventType): void => {
const eventDetail = evt.detail;
const { element } = eventDetail;
const { annotation, viewportIdsToRender, newAnnotation, hasMoved } =
this.editData;
const { data } = annotation;
Iif (newAnnotation && !hasMoved) {
return;
}
// Circle ROI tool should reset its highlight to false on mouse up (as opposed
// to other tools that keep it highlighted until the user moves. The reason
// is that we use top-left and bottom-right handles to define the circle,
// and they are by definition not in the circle on mouse up.
annotation.highlighted = false;
data.handles.activeHandleIndex = null;
this._deactivateModify(element);
this._deactivateDraw(element);
resetElementCursor(element);
const { renderingEngine } = getEnabledElement(element);
this.editData = null;
this.isDrawing = false;
Iif (
this.isHandleOutsideImage &&
this.configuration.preventHandleOutsideImage
) {
removeAnnotation(annotation.annotationUID);
}
triggerAnnotationRenderForViewportIds(renderingEngine, viewportIdsToRender);
Eif (newAnnotation) {
triggerAnnotationCompleted(annotation);
}
};
_dragDrawCallback = (evt: EventTypes.InteractionEventType): void => {
this.isDrawing = true;
const eventDetail = evt.detail;
const { element } = eventDetail;
const { currentPoints } = eventDetail;
const currentCanvasPoints = currentPoints.canvas;
const enabledElement = getEnabledElement(element);
const { renderingEngine, viewport } = enabledElement;
const { canvasToWorld } = viewport;
//////
const { annotation, viewportIdsToRender } = this.editData;
const { data } = annotation;
data.handles.points = [
data.handles.points[0], // center stays
canvasToWorld(currentCanvasPoints), // end point moves (changing radius)
];
annotation.invalidated = true;
this.editData.hasMoved = true;
triggerAnnotationRenderForViewportIds(renderingEngine, viewportIdsToRender);
};
_dragModifyCallback = (evt: EventTypes.InteractionEventType): void => {
this.isDrawing = true;
const eventDetail = evt.detail;
const { element } = eventDetail;
const { annotation, viewportIdsToRender, handleIndex, movingTextBox } =
this.editData;
const { data } = annotation;
if (movingTextBox) {
const { deltaPoints } = eventDetail;
const worldPosDelta = deltaPoints.world;
const { textBox } = data.handles;
const { worldPosition } = textBox;
worldPosition[0] += worldPosDelta[0];
worldPosition[1] += worldPosDelta[1];
worldPosition[2] += worldPosDelta[2];
textBox.hasMoved = true;
} else if (handleIndex === undefined) {
// Moving tool
const { deltaPoints } = eventDetail;
const worldPosDelta = deltaPoints.world;
const points = data.handles.points;
points.forEach((point) => {
point[0] += worldPosDelta[0];
point[1] += worldPosDelta[1];
point[2] += worldPosDelta[2];
});
annotation.invalidated = true;
} else {
this._dragHandle(evt);
annotation.invalidated = true;
}
const enabledElement = getEnabledElement(element);
const { renderingEngine } = enabledElement;
triggerAnnotationRenderForViewportIds(renderingEngine, viewportIdsToRender);
};
_dragHandle = (evt: EventTypes.InteractionEventType): void => {
const eventDetail = evt.detail;
const { element } = eventDetail;
const enabledElement = getEnabledElement(element);
const { canvasToWorld, worldToCanvas } = enabledElement.viewport;
const { annotation, handleIndex } = this.editData;
const { data } = annotation;
const { points } = data.handles;
const canvasCoordinates = points.map((p) => worldToCanvas(p));
// Move current point in that direction.
// Move other points in opposite direction.
const { currentPoints } = eventDetail;
const currentCanvasPoints = currentPoints.canvas;
if (handleIndex === 0) {
// Dragging center, move the circle ROI
const dXCanvas = currentCanvasPoints[0] - canvasCoordinates[0][0];
const dYCanvas = currentCanvasPoints[1] - canvasCoordinates[0][1];
const canvasCenter = currentCanvasPoints as Types.Point2;
const canvasEnd = <Types.Point2>[
canvasCoordinates[1][0] + dXCanvas,
canvasCoordinates[1][1] + dYCanvas,
];
points[0] = canvasToWorld(canvasCenter);
points[1] = canvasToWorld(canvasEnd);
} else {
// Dragging end point, center stays
points[1] = canvasToWorld(currentCanvasPoints);
}
};
cancel = (element: HTMLDivElement) => {
// If it is mid-draw or mid-modify
Eif (this.isDrawing) {
this.isDrawing = false;
this._deactivateDraw(element);
this._deactivateModify(element);
resetElementCursor(element);
const { annotation, viewportIdsToRender, newAnnotation } = this.editData;
const { data } = annotation;
annotation.highlighted = false;
data.handles.activeHandleIndex = null;
const { renderingEngine } = getEnabledElement(element);
triggerAnnotationRenderForViewportIds(
renderingEngine,
viewportIdsToRender
);
Eif (newAnnotation) {
triggerAnnotationCompleted(annotation);
}
this.editData = null;
return annotation.annotationUID;
}
};
_activateModify = (element) => {
state.isInteractingWithTool = true;
element.addEventListener(Events.MOUSE_UP, this._endCallback);
element.addEventListener(Events.MOUSE_DRAG, this._dragModifyCallback);
element.addEventListener(Events.MOUSE_CLICK, this._endCallback);
element.addEventListener(Events.TOUCH_END, this._endCallback);
element.addEventListener(Events.TOUCH_DRAG, this._dragModifyCallback);
element.addEventListener(Events.TOUCH_TAP, this._endCallback);
};
_deactivateModify = (element) => {
state.isInteractingWithTool = false;
element.removeEventListener(Events.MOUSE_UP, this._endCallback);
element.removeEventListener(Events.MOUSE_DRAG, this._dragModifyCallback);
element.removeEventListener(Events.MOUSE_CLICK, this._endCallback);
element.removeEventListener(Events.TOUCH_END, this._endCallback);
element.removeEventListener(Events.TOUCH_DRAG, this._dragModifyCallback);
element.removeEventListener(Events.TOUCH_TAP, this._endCallback);
};
_activateDraw = (element) => {
state.isInteractingWithTool = true;
element.addEventListener(Events.MOUSE_UP, this._endCallback);
element.addEventListener(Events.MOUSE_DRAG, this._dragDrawCallback);
element.addEventListener(Events.MOUSE_MOVE, this._dragDrawCallback);
element.addEventListener(Events.MOUSE_CLICK, this._endCallback);
element.addEventListener(Events.TOUCH_END, this._endCallback);
element.addEventListener(Events.TOUCH_DRAG, this._dragDrawCallback);
element.addEventListener(Events.TOUCH_TAP, this._endCallback);
};
_deactivateDraw = (element) => {
state.isInteractingWithTool = false;
element.removeEventListener(Events.MOUSE_UP, this._endCallback);
element.removeEventListener(Events.MOUSE_DRAG, this._dragDrawCallback);
element.removeEventListener(Events.MOUSE_MOVE, this._dragDrawCallback);
element.removeEventListener(Events.MOUSE_CLICK, this._endCallback);
element.removeEventListener(Events.TOUCH_END, this._endCallback);
element.removeEventListener(Events.TOUCH_DRAG, this._dragDrawCallback);
element.removeEventListener(Events.TOUCH_TAP, this._endCallback);
};
/**
* it is used to draw the circleROI annotation in each
* request animation frame. It calculates the updated cached statistics if
* data is invalidated and cache it.
*
* @param enabledElement - The Cornerstone's enabledElement.
* @param svgDrawingHelper - The svgDrawingHelper providing the context for drawing.
*/
renderAnnotation = (
enabledElement: Types.IEnabledElement,
svgDrawingHelper: SVGDrawingHelper
): boolean => {
let renderStatus = false;
const { viewport } = enabledElement;
const { element } = viewport;
let annotations = getAnnotations(this.getToolName(), element);
Iif (!annotations?.length) {
return renderStatus;
}
annotations = this.filterInteractableAnnotationsForElement(
element,
annotations
);
Iif (!annotations?.length) {
return renderStatus;
}
const targetId = this.getTargetId(viewport);
const renderingEngine = viewport.getRenderingEngine();
const styleSpecifier: StyleSpecifier = {
toolGroupId: this.toolGroupId,
toolName: this.getToolName(),
viewportId: enabledElement.viewport.id,
};
for (let i = 0; i < annotations.length; i++) {
const annotation = annotations[i] as CircleROIAnnotation;
const { annotationUID, data } = annotation;
const { handles } = data;
const { points, activeHandleIndex } = handles;
styleSpecifier.annotationUID = annotationUID;
const { color, lineWidth, lineDash } = this.getAnnotationStyle({
annotation,
styleSpecifier,
});
const canvasCoordinates = points.map((p) =>
viewport.worldToCanvas(p)
) as [Types.Point2, Types.Point2];
const center = canvasCoordinates[0];
const radius = getCanvasCircleRadius(canvasCoordinates);
const canvasCorners = getCanvasCircleCorners(canvasCoordinates);
const { centerPointRadius } = this.configuration;
// If cachedStats does not exist, or the unit is missing (as part of import/hydration etc.),
// force to recalculate the stats from the points
if (
!data.cachedStats[targetId] ||
data.cachedStats[targetId].areaUnit == null
) {
data.cachedStats[targetId] = {
Modality: null,
area: null,
max: null,
mean: null,
stdDev: null,
areaUnit: null,
radius: null,
radiusUnit: null,
perimeter: null,
};
this._calculateCachedStats(
annotation,
viewport,
renderingEngine,
enabledElement
);
} else Eif (annotation.invalidated) {
this._throttledCalculateCachedStats(
annotation,
viewport,
renderingEngine,
enabledElement
);
// If the invalidated data is as a result of volumeViewport manipulation
// of the tools, we need to invalidate the related viewports data, so that
// when scrolling to the related slice in which the tool were manipulated
// we re-render the correct tool position. This is due to stackViewport
// which doesn't have the full volume at each time, and we are only working
// on one slice at a time.
if (viewport instanceof VolumeViewport) {
const { referencedImageId } = annotation.metadata;
// invalidate all the relevant stackViewports if they are not
// at the referencedImageId
for (const targetId in data.cachedStats) {
if (targetId.startsWith('imageId')) {
const viewports = renderingEngine.getStackViewports();
const invalidatedStack = viewports.find((vp) => {
// The stack viewport that contains the imageId but is not
// showing it currently
const referencedImageURI =
csUtils.imageIdToURI(referencedImageId);
const hasImageURI = vp.hasImageURI(referencedImageURI);
const currentImageURI = csUtils.imageIdToURI(
vp.getCurrentImageId()
);
return hasImageURI && currentImageURI !== referencedImageURI;
});
if (invalidatedStack) {
delete data.cachedStats[targetId];
}
}
}
}
}
// If rendering engine has been destroyed while rendering
Iif (!viewport.getRenderingEngine()) {
console.warn('Rendering Engine has been destroyed');
return renderStatus;
}
let activeHandleCanvasCoords;
Iif (!isAnnotationVisible(annotationUID)) {
continue;
}
Iif (
!isAnnotationLocked(annotation) &&
!this.editData &&
activeHandleIndex !== null
) {
// Not locked or creating and hovering over handle, so render handle.
activeHandleCanvasCoords = [canvasCoordinates[activeHandleIndex]];
}
Iif (activeHandleCanvasCoords) {
const handleGroupUID = '0';
drawHandlesSvg(
svgDrawingHelper,
annotationUID,
handleGroupUID,
activeHandleCanvasCoords,
{
color,
}
);
}
const dataId = `${annotationUID}-circle`;
const circleUID = '0';
drawCircleSvg(
svgDrawingHelper,
annotationUID,
circleUID,
center,
radius,
{
color,
lineDash,
lineWidth,
},
dataId
);
// draw center point, if "centerPointRadius" configuration is valid.
Iif (centerPointRadius > 0) {
if (radius > 3 * centerPointRadius) {
drawCircleSvg(
svgDrawingHelper,
annotationUID,
`${circleUID}-center`,
center,
centerPointRadius,
{
color,
lineDash,
lineWidth,
}
);
}
}
renderStatus = true;
const options = this.getLinkedTextBoxStyle(styleSpecifier, annotation);
Iif (!options.visibility) {
data.handles.textBox = {
hasMoved: false,
worldPosition: <Types.Point3>[0, 0, 0],
worldBoundingBox: {
topLeft: <Types.Point3>[0, 0, 0],
topRight: <Types.Point3>[0, 0, 0],
bottomLeft: <Types.Point3>[0, 0, 0],
bottomRight: <Types.Point3>[0, 0, 0],
},
};
continue;
}
const textLines = this.configuration.getTextLines(data, targetId);
Iif (!textLines || textLines.length === 0) {
continue;
}
// Poor man's cached?
let canvasTextBoxCoords;
Eif (!data.handles.textBox.hasMoved) {
canvasTextBoxCoords = getTextBoxCoordsCanvas(canvasCorners);
data.handles.textBox.worldPosition =
viewport.canvasToWorld(canvasTextBoxCoords);
}
const textBoxPosition = viewport.worldToCanvas(
data.handles.textBox.worldPosition
);
const textBoxUID = '1';
const boundingBox = drawLinkedTextBoxSvg(
svgDrawingHelper,
annotationUID,
textBoxUID,
textLines,
textBoxPosition,
canvasCoordinates,
{},
options
);
const { x: left, y: top, width, height } = boundingBox;
data.handles.textBox.worldBoundingBox = {
topLeft: viewport.canvasToWorld([left, top]),
topRight: viewport.canvasToWorld([left + width, top]),
bottomLeft: viewport.canvasToWorld([left, top + height]),
bottomRight: viewport.canvasToWorld([left + width, top + height]),
};
}
return renderStatus;
};
_calculateCachedStats = (
annotation,
viewport,
renderingEngine,
enabledElement
) => {
const data = annotation.data;
const { element } = viewport;
const { points } = data.handles;
const canvasCoordinates = points.map((p) => viewport.worldToCanvas(p));
const { viewPlaneNormal, viewUp } = viewport.getCamera();
const [topLeftCanvas, bottomRightCanvas] = <Array<Types.Point2>>(
getCanvasCircleCorners(canvasCoordinates)
);
const topLeftWorld = viewport.canvasToWorld(topLeftCanvas);
const bottomRightWorld = viewport.canvasToWorld(bottomRightCanvas);
const { cachedStats } = data;
const targetIds = Object.keys(cachedStats);
const worldPos1 = topLeftWorld;
const worldPos2 = bottomRightWorld;
for (let i = 0; i < targetIds.length; i++) {
const targetId = targetIds[i];
const image = this.getTargetIdImage(targetId, renderingEngine);
// If image does not exists for the targetId, skip. This can be due
// to various reasons such as if the target was a volumeViewport, and
// the volumeViewport has been decached in the meantime.
Iif (!image) {
continue;
}
const { dimensions, imageData, metadata, hasPixelSpacing } = image;
const pos1Index = transformWorldToIndex(imageData, worldPos1);
pos1Index[0] = Math.floor(pos1Index[0]);
pos1Index[1] = Math.floor(pos1Index[1]);
pos1Index[2] = Math.floor(pos1Index[2]);
const pos2Index = transformWorldToIndex(imageData, worldPos2);
pos2Index[0] = Math.floor(pos2Index[0]);
pos2Index[1] = Math.floor(pos2Index[1]);
pos2Index[2] = Math.floor(pos2Index[2]);
// Check if one of the indexes are inside the volume, this then gives us
// Some area to do stats over.
if (this._isInsideVolume(pos1Index, pos2Index, dimensions)) {
const iMin = Math.min(pos1Index[0], pos2Index[0]);
const iMax = Math.max(pos1Index[0], pos2Index[0]);
const jMin = Math.min(pos1Index[1], pos2Index[1]);
const jMax = Math.max(pos1Index[1], pos2Index[1]);
const kMin = Math.min(pos1Index[2], pos2Index[2]);
const kMax = Math.max(pos1Index[2], pos2Index[2]);
const boundsIJK = [
[iMin, iMax],
[jMin, jMax],
[kMin, kMax],
] as [Types.Point2, Types.Point2, Types.Point2];
const center = [
(topLeftWorld[0] + bottomRightWorld[0]) / 2,
(topLeftWorld[1] + bottomRightWorld[1]) / 2,
(topLeftWorld[2] + bottomRightWorld[2]) / 2,
] as Types.Point3;
const ellipseObj = {
center,
xRadius: Math.abs(topLeftWorld[0] - bottomRightWorld[0]) / 2,
yRadius: Math.abs(topLeftWorld[1] - bottomRightWorld[1]) / 2,
zRadius: Math.abs(topLeftWorld[2] - bottomRightWorld[2]) / 2,
};
const { worldWidth, worldHeight } = getWorldWidthAndHeightFromTwoPoints(
viewPlaneNormal,
viewUp,
worldPos1,
worldPos2
);
const isEmptyArea = worldWidth === 0 && worldHeight === 0;
const handles = [pos1Index, pos2Index];
const { scale, units, areaUnits } = getCalibratedLengthUnitsAndScale(
image,
handles
);
const aspect = getCalibratedAspect(image);
const area = Math.abs(
Math.PI *
(worldWidth / scale / 2) *
(worldHeight / aspect / scale / 2)
);
const modalityUnitOptions = {
isPreScaled: isViewportPreScaled(viewport, targetId),
isSuvScaled: this.isSuvScaled(
viewport,
targetId,
annotation.metadata.referencedImageId
),
};
const modalityUnit = getModalityUnit(
metadata.Modality,
annotation.metadata.referencedImageId,
modalityUnitOptions
);
const pointsInShape = pointInShapeCallback(
imageData,
(pointLPS) =>
pointInEllipse(ellipseObj, pointLPS, {
fast: true,
}),
this.configuration.statsCalculator.statsCallback,
boundsIJK
);
const stats = this.configuration.statsCalculator.getStatistics();
cachedStats[targetId] = {
Modality: metadata.Modality,
area,
mean: stats.mean?.value,
max: stats.max?.value,
stdDev: stats.stdDev?.value,
statsArray: stats.array,
pointsInShape: pointsInShape,
isEmptyArea,
areaUnit: areaUnits,
radius: worldWidth / 2 / scale,
radiusUnit: units,
perimeter: (2 * Math.PI * (worldWidth / 2)) / scale,
modalityUnit,
};
} else E{
this.isHandleOutsideImage = true;
cachedStats[targetId] = {
Modality: metadata.Modality,
};
}
}
annotation.invalidated = false;
// Dispatching annotation modified
triggerAnnotationModified(annotation, element);
return cachedStats;
};
_isInsideVolume = (index1, index2, dimensions) => {
return (
csUtils.indexWithinDimensions(index1, dimensions) &&
csUtils.indexWithinDimensions(index2, dimensions)
);
};
}
function defaultGetTextLines(data, targetId): string[] {
const cachedVolumeStats = data.cachedStats[targetId];
const {
radius,
radiusUnit,
area,
mean,
stdDev,
max,
isEmptyArea,
areaUnit,
modalityUnit,
} = cachedVolumeStats;
const textLines: string[] = [];
Eif (radius) {
const radiusLine = isEmptyArea
? `Radius: Oblique not supported`
: `Radius: ${roundNumber(radius)} ${radiusUnit}`;
textLines.push(radiusLine);
}
Eif (area) {
const areaLine = isEmptyArea
? `Area: Oblique not supported`
: `Area: ${roundNumber(area)} ${areaUnit}`;
textLines.push(areaLine);
}
Eif (mean) {
textLines.push(`Mean: ${roundNumber(mean)} ${modalityUnit}`);
}
Eif (max) {
textLines.push(`Max: ${roundNumber(max)} ${modalityUnit}`);
}
if (stdDev) {
textLines.push(`Std Dev: ${roundNumber(stdDev)} ${modalityUnit}`);
}
return textLines;
}
CircleROITool.toolName = 'CircleROI';
export default CircleROITool;
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