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const DEFAULT_VIEW_API = 'WebGL';
const VIEW_CONSTRUCTORS = Object.create(null);
// ----------------------------------------------------------------------------
// static methods
// ----------------------------------------------------------------------------
export function registerViewConstructor(name, constructor) {
VIEW_CONSTRUCTORS[name] = constructor;
}
export function listViewAPIs() {
return Object.keys(VIEW_CONSTRUCTORS);
}
export function newAPISpecificView(name, initialValues = {}) {
return VIEW_CONSTRUCTORS[name] && VIEW_CONSTRUCTORS[name](initialValues);
}
// ----------------------------------------------------------------------------
// vtkRenderWindow methods
// ----------------------------------------------------------------------------
function vtkRenderWindow(publicAPI, model) {
// Set our className
model.classHierarchy.push('vtkRenderWindow');
// Add renderer
publicAPI.addRenderer = (renderer) => {
Iif (publicAPI.hasRenderer(renderer)) {
return;
}
renderer.setRenderWindow(publicAPI);
model.renderers.push(renderer);
// for (this->Renderers->InitTraversal(rsit);
// (aren = this->Renderers->GetNextRenderer(rsit)); )
// {
// aren->SetAllocatedRenderTime
// (1.0/(this->DesiredUpdateRate*this->Renderers->GetNumberOfItems()));
// }
publicAPI.modified();
};
// Remove renderer
publicAPI.removeRenderer = (renderer) => {
model.renderers = model.renderers.filter((r) => r !== renderer);
publicAPI.modified();
};
publicAPI.hasRenderer = (ren) => model.renderers.indexOf(ren) !== -1;
// get an API specific view of this data
publicAPI.newAPISpecificView = (name, initialValues = {}) =>
newAPISpecificView(name || model.defaultViewAPI, initialValues);
// Add renderer
publicAPI.addView = (view) => {
Iif (publicAPI.hasView(view)) {
return;
}
view.setRenderable(publicAPI);
model._views.push(view);
publicAPI.modified();
};
// Remove renderer
publicAPI.removeView = (view) => {
model._views = model._views.filter((r) => r !== view);
publicAPI.modified();
};
publicAPI.hasView = (view) => model._views.indexOf(view) !== -1;
// handle any pre render initializations
publicAPI.preRender = () => {
model.renderers.forEach((ren) => {
// make sure we have a camera
if (!ren.isActiveCameraCreated()) {
ren.resetCamera();
}
});
};
publicAPI.render = () => {
publicAPI.preRender();
if (model.interactor) {
model.interactor.render();
} else {
model._views.forEach((view) => view.traverseAllPasses());
}
};
publicAPI.getStatistics = () => {
const results = { propCount: 0, invisiblePropCount: 0, gpuMemoryMB: 0 };
model._views.forEach((v) => {
if (v.getGraphicsMemoryInfo)
results.gpuMemoryMB += v.getGraphicsMemoryInfo() / 1e6;
});
model.renderers.forEach((ren) => {
const props = ren.getViewProps();
const gren = model._views[0].getViewNodeFor(ren);
props.forEach((prop) => {
if (prop.getVisibility()) {
results.propCount += 1;
const mpr = prop.getMapper && prop.getMapper();
if (mpr && mpr.getPrimitiveCount) {
const gmpr = gren.getViewNodeFor(mpr);
if (gmpr) {
if (gmpr.getAllocatedGPUMemoryInBytes) {
results.gpuMemoryMB +=
gmpr.getAllocatedGPUMemoryInBytes() / 1e6;
}
const pcount = mpr.getPrimitiveCount();
Object.keys(pcount).forEach((keyName) => {
if (!results[keyName]) {
results[keyName] = 0;
}
results[keyName] += pcount[keyName];
});
}
}
} else {
results.invisiblePropCount += 1;
}
});
});
results.str = Object.keys(results)
.map((keyName) => `${keyName}: ${results[keyName]}`)
.join('\n');
return results;
};
publicAPI.captureImages = (format = 'image/png', opts = {}) => {
macro.setImmediate(publicAPI.render);
return model._views
.map((view) =>
view.captureNextImage ? view.captureNextImage(format, opts) : undefined
)
.filter((i) => !!i);
};
publicAPI.addRenderWindow = (child) => {
if (model.childRenderWindows.includes(child)) {
return false;
}
model.childRenderWindows.push(child);
publicAPI.modified();
return true;
};
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
const DEFAULT_VALUES = {
defaultViewAPI: DEFAULT_VIEW_API,
renderers: [],
views: [],
interactor: null,
neverRendered: true,
numberOfLayers: 1,
childRenderWindows: [],
};
// ----------------------------------------------------------------------------
export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);
// Build VTK API
macro.obj(publicAPI, model);
macro.setGet(publicAPI, model, [
'interactor',
'numberOfLayers',
'_views',
'defaultViewAPI',
]);
macro.get(publicAPI, model, ['neverRendered']);
macro.getArray(publicAPI, model, ['renderers', 'childRenderWindows']);
macro.moveToProtected(publicAPI, model, ['views']);
macro.event(publicAPI, model, 'completion');
// Object methods
vtkRenderWindow(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(extend, 'vtkRenderWindow');
// ----------------------------------------------------------------------------
export default {
newInstance,
extend,
registerViewConstructor,
listViewAPIs,
newAPISpecificView,
};
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