ohif-viewer/extensions/vtk/src/commandsModule.js
James A. Petts 559b637290 feat: 🎸 Synced Window Leveling
Syncs window leveling for vtkjs viewports in MPR 2D mode.

Closes: #558
2019-10-03 14:29:56 +01:00

416 lines
12 KiB
JavaScript

import {
vtkInteractorStyleMPRCrosshairs,
vtkInteractorStyleMPRWindowLevel,
vtkInteractorStyleMPRSlice,
vtkInteractorStyleMPRRotate,
vtkSVGCrosshairsWidget,
vtkSVGWidgetManager,
} from 'react-vtkjs-viewport';
import setMPRLayout from './utils/setMPRLayout.js';
import setViewportToVTK from './utils/setViewportToVTK.js';
import vtkViewportSubscriptionManager from './utils/vtkViewportSubscriptionManager.js';
import vtkCoordinate from 'vtk.js/Sources/Rendering/Core/Coordinate';
import vtkMath from 'vtk.js/Sources/Common/Core/Math';
import vtkMatrixBuilder from 'vtk.js/Sources/Common/Core/MatrixBuilder';
import Constants from 'vtk.js/Sources/Rendering/Core/VolumeMapper/Constants.js';
const { BlendMode } = Constants;
// TODO: Put this somewhere else
let apis = {};
let currentSlabThickness = 0.1;
let defaultSlabThickness = 0.1;
function getCrosshairCallbackForIndex(index) {
return ({ worldPos }) => {
// Set camera focal point to world coordinate for linked views
apis.forEach((api, viewportIndex) => {
if (viewportIndex !== index) {
// We are basically doing the same as getSlice but with the world coordinate
// that we want to jump to instead of the camera focal point.
// I would rather do the camera adjustment directly but I keep
// doing it wrong and so this is good enough for now.
const renderWindow = api.genericRenderWindow.getRenderWindow();
const istyle = renderWindow.getInteractor().getInteractorStyle();
const sliceNormal = istyle.getSliceNormal();
const transform = vtkMatrixBuilder
.buildFromDegree()
.identity()
.rotateFromDirections(sliceNormal, [1, 0, 0]);
const mutatedWorldPos = worldPos.slice();
transform.apply(mutatedWorldPos);
const slice = mutatedWorldPos[0];
istyle.setSlice(slice);
renderWindow.render();
}
const renderer = api.genericRenderWindow.getRenderer();
const wPos = vtkCoordinate.newInstance();
wPos.setCoordinateSystemToWorld();
wPos.setValue(worldPos);
const displayPosition = wPos.getComputedDisplayValue(renderer);
const { svgWidgetManager } = api;
api.svgWidgets.crosshairsWidget.setPoint(
displayPosition[0],
displayPosition[1]
);
svgWidgetManager.render();
});
};
}
async function _getActiveViewportVTKApi(viewports) {
const { layout, viewportSpecificData, activeViewportIndex } = viewports;
const currentData = layout.viewports[activeViewportIndex];
if (currentData && currentData.plugin === 'vtk') {
// TODO: I was storing/pulling this from Redux but ran into weird issues
if (apis[activeViewportIndex]) {
return apis[activeViewportIndex];
}
}
const displaySet = viewportSpecificData[activeViewportIndex];
let api;
if (!api) {
try {
api = await setViewportToVTK(
displaySet,
activeViewportIndex,
layout,
viewportSpecificData
);
} catch (error) {
throw new Error(error);
}
}
return api;
}
function _setView(api, sliceNormal, viewUp) {
const renderWindow = api.genericRenderWindow.getRenderWindow();
const renderer = api.genericRenderWindow.getRenderer();
const camera = renderer.getActiveCamera();
const istyle = renderWindow.getInteractor().getInteractorStyle();
istyle.setSliceNormal(...sliceNormal);
istyle.setViewUp(...viewUp);
renderWindow.render();
}
function switchMPRInteractors(api, istyle) {
const renderWindow = api.genericRenderWindow.getRenderWindow();
const renderer = api.genericRenderWindow.getRenderer();
const camera = renderer.getActiveCamera();
const currentIStyle = renderWindow.getInteractor().getInteractorStyle();
let currentViewport;
if (currentIStyle.getViewport && istyle.getViewport) {
currentViewport = currentIStyle.getViewport();
}
let currentSlabThickness;
if (currentIStyle.getSlabThickness && istyle.getSlabThickness) {
currentSlabThickness = currentIStyle.getSlabThickness();
defaultSlabThickness = currentSlabThickness;
}
renderWindow.getInteractor().setInteractorStyle(istyle);
// TODO: Not sure why this is required the second time this function is called
istyle.setInteractor(renderWindow.getInteractor());
if (currentViewport) {
istyle.setViewport(currentViewport);
}
if (istyle.getVolumeMapper() !== api.volumes[0]) {
if (currentSlabThickness) {
istyle.setSlabThickness(currentSlabThickness);
}
istyle.setVolumeMapper(api.volumes[0]);
}
}
const actions = {
axial: async ({ viewports }) => {
const api = await _getActiveViewportVTKApi(viewports);
apis[viewports.activeViewportIndex] = api;
_setView(api, [0, 0, 1], [0, -1, 0]);
},
sagittal: async ({ viewports }) => {
const api = await _getActiveViewportVTKApi(viewports);
apis[viewports.activeViewportIndex] = api;
_setView(api, [1, 0, 0], [0, 0, 1]);
},
coronal: async ({ viewports }) => {
const api = await _getActiveViewportVTKApi(viewports);
apis[viewports.activeViewportIndex] = api;
_setView(api, [0, 1, 0], [0, 0, 1]);
},
enableRotateTool: () => {
apis.forEach(api => {
const istyle = vtkInteractorStyleMPRRotate.newInstance();
switchMPRInteractors(api, istyle);
});
},
enableCrosshairsTool: () => {
apis.forEach((api, index) => {
const istyle = vtkInteractorStyleMPRCrosshairs.newInstance();
switchMPRInteractors(api, istyle);
istyle.setCallback(getCrosshairCallbackForIndex(index));
});
},
enableLevelTool: () => {
apis.forEach(api => {
const istyle = vtkInteractorStyleMPRWindowLevel.newInstance();
switchMPRInteractors(api, istyle);
});
},
setSlabThickness: ({ slabThickness }) => {
currentSlabThickness = slabThickness;
apis.forEach(api => {
const renderWindow = api.genericRenderWindow.getRenderWindow();
const istyle = renderWindow.getInteractor().getInteractorStyle();
if (istyle.setSlabThickness) {
istyle.setSlabThickness(currentSlabThickness);
}
renderWindow.render();
});
},
changeSlabThickness: ({ change }) => {
currentSlabThickness += change;
currentSlabThickness = Math.max(currentSlabThickness, 0.1);
apis.forEach(api => {
const renderWindow = api.genericRenderWindow.getRenderWindow();
const istyle = renderWindow.getInteractor().getInteractorStyle();
if (istyle.setSlabThickness) {
istyle.setSlabThickness(currentSlabThickness);
}
renderWindow.render();
});
},
setBlendModeToComposite: () => {
apis.forEach(api => {
const renderWindow = api.genericRenderWindow.getRenderWindow();
const istyle = renderWindow.getInteractor().getInteractorStyle();
const mapper = api.volumes[0].getMapper();
if (mapper.setBlendModeToComposite) {
mapper.setBlendModeToComposite();
}
if (istyle.setSlabThickness) {
istyle.setSlabThickness(defaultSlabThickness);
}
renderWindow.render();
});
},
setBlendModeToMaximumIntensity: () => {
apis.forEach(api => {
const renderWindow = api.genericRenderWindow.getRenderWindow();
const mapper = api.volumes[0].getMapper();
if (mapper.setBlendModeToMaximumIntensity) {
mapper.setBlendModeToMaximumIntensity();
}
renderWindow.render();
});
},
setBlendMode: ({ blendMode }) => {
apis.forEach(api => {
const renderWindow = api.genericRenderWindow.getRenderWindow();
const istyle = renderWindow.getInteractor().getInteractorStyle();
api.volumes[0].getMapper().setBlendMode(blendMode);
renderWindow.render();
});
},
mpr2d: async ({ viewports }) => {
const displaySet =
viewports.viewportSpecificData[viewports.activeViewportIndex];
let apiByViewport;
try {
apiByViewport = await setMPRLayout(displaySet);
} catch (error) {
throw new Error(error);
}
apis = apiByViewport;
const rgbTransferFunction = apiByViewport[0].volumes[0]
.getProperty()
.getRGBTransferFunction(0);
const onModifiedSubscription = rgbTransferFunction.onModified(() => {
apiByViewport.forEach(a => {
const renderWindow = a.genericRenderWindow.getRenderWindow();
renderWindow.render();
});
});
vtkViewportSubscriptionManager.pushSubscription(0, onModifiedSubscription);
apiByViewport.forEach((api, index) => {
const renderWindow = api.genericRenderWindow.getRenderWindow();
const renderer = api.genericRenderWindow.getRenderer();
const camera = renderer.getActiveCamera();
const istyle = vtkInteractorStyleMPRCrosshairs.newInstance();
renderWindow.getInteractor().setInteractorStyle(istyle);
istyle.setVolumeMapper(api.volumes[0]);
istyle.setCallback(getCrosshairCallbackForIndex(index));
const svgWidgetManager = vtkSVGWidgetManager.newInstance();
svgWidgetManager.setRenderer(renderer);
svgWidgetManager.setScale(1);
const crosshairsWidget = vtkSVGCrosshairsWidget.newInstance();
svgWidgetManager.addWidget(crosshairsWidget);
svgWidgetManager.render();
api.svgWidgetManager = svgWidgetManager;
api.svgWidgets = {
crosshairsWidget,
};
switch (index) {
default:
case 0:
//Axial
istyle.setSliceNormal(0, 0, 1);
istyle.setViewUp(0, -1, 0);
break;
case 1:
// sagittal
istyle.setSliceNormal(1, 0, 0);
istyle.setViewUp(0, 0, 1);
break;
case 2:
// Coronal
istyle.setSliceNormal(0, 1, 0);
istyle.setViewUp(0, 0, 1);
break;
}
renderWindow.render();
});
},
};
window.vtkActions = actions;
const definitions = {
axial: {
commandFn: actions.axial,
storeContexts: ['viewports'],
options: {},
},
coronal: {
commandFn: actions.coronal,
storeContexts: ['viewports'],
options: {},
},
sagittal: {
commandFn: actions.sagittal,
storeContexts: ['viewports'],
options: {},
},
enableRotateTool: {
commandFn: actions.enableRotateTool,
storeContexts: [],
options: {},
},
enableCrosshairsTool: {
commandFn: actions.enableCrosshairsTool,
storeContexts: [],
options: {},
},
enableLevelTool: {
commandFn: actions.enableLevelTool,
storeContexts: [],
options: {},
},
setBlendModeToComposite: {
commandFn: actions.setBlendModeToComposite,
storeContexts: [],
options: { blendMode: BlendMode.COMPOSITE_BLEND },
},
setBlendModeToMaximumIntensity: {
commandFn: actions.setBlendModeToMaximumIntensity,
storeContexts: [],
options: { blendMode: BlendMode.MAXIMUM_INTENSITY_BLEND },
},
setBlendModeToMinimumIntensity: {
commandFn: actions.setBlendMode,
storeContexts: [],
options: { blendMode: BlendMode.MINIMUM_INTENSITY_BLEND },
},
setBlendModeToAverageIntensity: {
commandFn: actions.setBlendMode,
storeContexts: [],
options: { blendMode: BlendMode.AVERAGE_INTENSITY_BLEND },
},
setSlabThickness: {
// TODO: How do we pass in a function argument?
commandFn: actions.setSlabThickness,
storeContexts: [],
options: {},
},
increaseSlabThickness: {
commandFn: actions.changeSlabThickness,
storeContexts: [],
options: {
change: 3,
},
},
decreaseSlabThickness: {
commandFn: actions.changeSlabThickness,
storeContexts: [],
options: {
change: -3,
},
},
mpr2d: {
commandFn: actions.mpr2d,
storeContexts: ['viewports'],
options: {},
context: 'VIEWER',
},
};
export default {
definitions,
defaultContext: 'ACTIVE_VIEWPORT::VTK',
};