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chore(InteractorStyleMPRSlice): fix recursion error in example #3554

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chore(InteractorStyleMPRSlice): fix recursion error in example #3554

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61 changes: 30 additions & 31 deletions Sources/Interaction/Style/InteractorStyleMPRSlice/example/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -26,35 +26,6 @@ renderWindow.getInteractor().setInteractorStyle(istyle);
global.fullScreen = fullScreenRenderWindow;
global.renderWindow = renderWindow;

// ----------------------------------------------------------------------------
// Volume rendering
// ----------------------------------------------------------------------------

const actor = vtkVolume.newInstance();
const mapper = vtkVolumeMapper.newInstance();
actor.setMapper(mapper);

const reader = vtkHttpDataSetReader.newInstance({
fetchGzip: true,
});
reader
.setUrl(`${__BASE_PATH__}/data/volume/headsq.vti`, { loadData: true })
.then(() => {
const data = reader.getOutputData();

mapper.setInputData(data);

// set interactor style volume mapper after mapper sets input data
istyle.setVolumeMapper(mapper);
istyle.setSliceNormal(0, 0, 1);

const range = istyle.getSliceRange();
istyle.setSlice((range[0] + range[1]) / 2);

renderer.addVolume(actor);
renderWindow.render();
});

// ----------------------------------------------------------------------------
// UI (lil-gui)
// ----------------------------------------------------------------------------
Expand Down Expand Up @@ -95,5 +66,33 @@ function updateUI() {
sliceCtrl.updateDisplay?.();
}

istyle.onModified(updateUI);
updateUI();
// ----------------------------------------------------------------------------
// Volume rendering
// ----------------------------------------------------------------------------

const actor = vtkVolume.newInstance();
const mapper = vtkVolumeMapper.newInstance();
actor.setMapper(mapper);

const reader = vtkHttpDataSetReader.newInstance({
fetchGzip: true,
});
reader
.setUrl(`${__BASE_PATH__}/data/volume/headsq.vti`, { loadData: true })
.then(() => {
const data = reader.getOutputData();

mapper.setInputData(data);

// set interactor style volume mapper after mapper sets input data
istyle.setVolumeMapper(mapper);
istyle.setSliceNormal(0, 0, 1);

const range = istyle.getSliceRange();
istyle.setSlice((range[0] + range[1]) / 2);

renderer.addVolume(actor);
renderWindow.render();
istyle.onModified(updateUI);
updateUI();
});
4 changes: 4 additions & 0 deletions Sources/Interaction/Style/InteractorStyleMPRSlice/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -137,6 +137,9 @@ function vtkInteractorStyleMPRSlice(publicAPI, model) {
};

publicAPI.setSlice = (slice) => {
if (publicAPI.getSlice() === slice) {
return false;
}
const renderer = model._interactor.getCurrentRenderer();
const camera = renderer.getActiveCamera();

Expand Down Expand Up @@ -171,6 +174,7 @@ function vtkInteractorStyleMPRSlice(publicAPI, model) {
camera.setPosition(...newPos);
camera.setFocalPoint(...slicePoint);
}
return true;
};

publicAPI.getSliceRange = () => {
Expand Down
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