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import vtkActor from 'vtk.js/Sources/Rendering/Core/Actor';
import vtkCamera from 'vtk.js/Sources/Rendering/Core/Camera';
import vtkColorTransferFunction from 'vtk.js/Sources/Rendering/Core/ColorTransferFunction';
import vtkDataArray from 'vtk.js/Sources/Common/Core/DataArray';
import vtkPoints from 'vtk.js/Sources/Common/Core/Points';
import vtkCellArray from 'vtk.js/Sources/Common/Core/CellArray';
import vtkGlyph3DMapper from 'vtk.js/Sources/Rendering/Core/Glyph3DMapper';
import vtkLight from 'vtk.js/Sources/Rendering/Core/Light';
import vtkLookupTable from 'vtk.js/Sources/Common/Core/LookupTable';
import vtkMapper from 'vtk.js/Sources/Rendering/Core/Mapper';
import vtkPolyData from 'vtk.js/Sources/Common/DataModel/PolyData';
import vtkImageData from 'vtk.js/Sources/Common/DataModel/ImageData';
import vtkProperty from 'vtk.js/Sources/Rendering/Core/Property';
import vtkRenderer from 'vtk.js/Sources/Rendering/Core/Renderer';
import vtkRenderWindow from 'vtk.js/Sources/Rendering/Core/RenderWindow';
import vtkTexture from 'vtk.js/Sources/Rendering/Core/Texture';
import vtkVolume from 'vtk.js/Sources/Rendering/Core/Volume';
import vtkVolumeMapper from 'vtk.js/Sources/Rendering/Core/VolumeMapper';
import vtkVolumeProperty from 'vtk.js/Sources/Rendering/Core/VolumeProperty';
import vtkImageSlice from 'vtk.js/Sources/Rendering/Core/ImageSlice';
import vtkImageMapper from 'vtk.js/Sources/Rendering/Core/ImageMapper';
import vtkImageProperty from 'vtk.js/Sources/Rendering/Core/ImageProperty';
import vtkPiecewiseFunction from 'vtk.js/Sources/Common/DataModel/PiecewiseFunction';
import vtkCubeAxesActor from 'vtk.js/Sources/Rendering/Core/CubeAxesActor';
import vtkScalarBarActor from 'vtk.js/Sources/Rendering/Core/ScalarBarActor';
import vtkAxesActor from 'vtk.js/Sources/Rendering/Core/AxesActor';
import BehaviorManager from '../BehaviorManager';
// ----------------------------------------------------------------------------
// Some internal, module-level variables and methods
// ----------------------------------------------------------------------------
const TYPE_HANDLERS = {};
const WRAPPED_ID_RE = /instance:\${([^}]+)}/;
const WRAP_ID = (id) => `instance:$\{${id}}`;
const ONE_TIME_INSTANCE_TRACKERS = {};
const SKIPPED_INSTANCE_IDS = [];
const EXCLUDE_INSTANCE_MAP = {};
const DATA_ARRAY_MAPPER = {
vtkPoints,
vtkCellArray,
vtkDataArray,
};
// ----------------------------------------------------------------------------
function extractCallArgs(synchronizerContext, argList) {
return argList.map((arg) => {
const m = WRAPPED_ID_RE.exec(arg);
if (m) {
return synchronizerContext.getInstance(m[1]);
}
return arg;
});
}
// ----------------------------------------------------------------------------
function extractInstanceIds(argList) {
return argList
.map((arg) => WRAPPED_ID_RE.exec(arg))
.filter((m) => m)
.map((m) => m[1]);
}
// ----------------------------------------------------------------------------
function extractDependencyIds(state, depList = []) {
if (state.dependencies) {
state.dependencies.forEach((childState) => {
depList.push(childState.id);
extractDependencyIds(childState, depList);
});
}
return depList;
}
// ----------------------------------------------------------------------------
function bindArrays(arraysToBind) {
while (arraysToBind.length) {
const [fn, args] = arraysToBind.shift();
fn(...args);
}
}
// ----------------------------------------------------------------------------
function createNewArrayHandler(instance, arrayMetadata, arraysToBind) {
return (values) => {
const regMethod = arrayMetadata.registration
? arrayMetadata.registration
: 'addArray';
const location = arrayMetadata.location
? instance.getReferenceByName(arrayMetadata.location)
: instance;
// Try to prevent unncessary modified
let previousArray = null;
if (arrayMetadata.location) {
previousArray = instance
.getReferenceByName(arrayMetadata.location)
.getArray(arrayMetadata.name);
} else {
previousArray = instance[`get${regMethod.substring(3)}`]();
}
if (previousArray) {
if (previousArray.getData() !== values) {
arraysToBind.push([
previousArray.setData,
[values, arrayMetadata.numberOfComponents],
]);
}
return previousArray;
}
const vtkClass = arrayMetadata.vtkClass
? arrayMetadata.vtkClass
: 'vtkDataArray';
const array = DATA_ARRAY_MAPPER[vtkClass].newInstance({
...arrayMetadata,
values,
});
arraysToBind.push([location[regMethod], [array]]);
return array;
};
}
// ----------------------------------------------------------------------------
// Static methods for export
// ----------------------------------------------------------------------------
function update(type, instance, props, context) {
if (!instance) {
return Promise.reject(new Error(`No instance provided.`));
}
const handler = TYPE_HANDLERS[type];
if (handler && handler.update) {
return handler.update(instance, props, context);
}
return Promise.reject(new Error(`No updater for ${type}`));
}
// ----------------------------------------------------------------------------
function build(type, initialProps = {}) {
const handler = TYPE_HANDLERS[type];
if (handler && handler.build) {
// DEBUG console.log(`new ${type} - ${initialProps.managedInstanceId}`);
return handler.build(initialProps);
}
console.log('No builder for', type);
return null;
}
// ----------------------------------------------------------------------------
function excludeInstance(type, propertyName, propertyValue) {
EXCLUDE_INSTANCE_MAP[type] = {
key: propertyName,
value: propertyValue,
};
}
// ----------------------------------------------------------------------------
function getSupportedTypes() {
return Object.keys(TYPE_HANDLERS);
}
// ----------------------------------------------------------------------------
function clearTypeMapping() {
Object.keys(TYPE_HANDLERS).forEach((key) => {
delete TYPE_HANDLERS[key];
});
}
// ----------------------------------------------------------------------------
function updateRenderWindow(instance, props, context) {
return update('vtkRenderWindow', instance, props, context);
}
// ----------------------------------------------------------------------------
function clearAllOneTimeUpdaters() {
Object.keys(ONE_TIME_INSTANCE_TRACKERS).forEach((key) => {
delete ONE_TIME_INSTANCE_TRACKERS[key];
});
}
// ----------------------------------------------------------------------------
function clearOneTimeUpdaters(...ids) {
if (ids.length === 0) {
return clearAllOneTimeUpdaters();
}
let array = ids;
// allow an array passed as a single arg.
if (array.length === 1 && Array.isArray(array[0])) {
array = array[0];
}
array.forEach((instanceId) => {
delete ONE_TIME_INSTANCE_TRACKERS[instanceId];
});
return array;
}
// ----------------------------------------------------------------------------
function notSkippedInstance(call) {
if (call[1].length === 1) {
return SKIPPED_INSTANCE_IDS.indexOf(call[1][0]) === -1;
}
let keep = false;
for (let i = 0; i < call[1].length; i++) {
keep = keep || SKIPPED_INSTANCE_IDS.indexOf(call[1][i]) === -1;
}
return keep;
}
// ----------------------------------------------------------------------------
// Updater functions
// ----------------------------------------------------------------------------
function genericUpdater(instance, state, context) {
context.start(); // -> start(generic-updater)
// First update our own properties
instance.set(state.properties);
// Now handle dependencies
if (state.dependencies) {
state.dependencies.forEach((childState) => {
const { id, type } = childState;
if (EXCLUDE_INSTANCE_MAP[type]) {
const { key, value } = EXCLUDE_INSTANCE_MAP[type];
if (!key || childState.properties[key] === value) {
SKIPPED_INSTANCE_IDS.push(WRAP_ID(id));
return;
}
}
let childInstance = context.getInstance(id);
if (!childInstance) {
childInstance = build(type, { managedInstanceId: id });
context.registerInstance(id, childInstance);
}
update(type, childInstance, childState, context);
});
}
if (state.calls) {
state.calls.filter(notSkippedInstance).forEach((call) => {
// DEBUG console.log('==>', call[0], extractCallArgs(context, call[1]));
instance[call[0]].apply(null, extractCallArgs(context, call[1]));
});
}
// if some arrays need to be be fetch
const dependencies = [];
if (state.arrays) {
const arraysToBind = [];
const promises = Object.values(state.arrays).map((arrayMetadata) => {
context.start(); // -> start(arrays)
return context
.getArray(arrayMetadata.hash, arrayMetadata.dataType, context)
.then(createNewArrayHandler(instance, arrayMetadata, arraysToBind))
.catch((error) => {
console.log(
'Error fetching array',
JSON.stringify(arrayMetadata),
error
);
})
.finally(context.end); // -> end(arrays)
});
context.start(); // -> start(arraysToBind)
dependencies.push(
Promise.all(promises)
.then(() => {
// Since some arrays are getting updated, we should modify our dataset
if (arraysToBind.length) {
instance.modified();
}
bindArrays(arraysToBind);
return true;
})
.catch((error) => {
console.error(
'Error in array handling for state',
JSON.stringify(state),
error
);
})
.finally(context.end) // -> end(arraysToBind)
);
}
context.end(); // -> end(generic-updater)
return Promise.all(dependencies);
}
// ----------------------------------------------------------------------------
function oneTimeGenericUpdater(instance, state, context) {
if (!ONE_TIME_INSTANCE_TRACKERS[state.id]) {
genericUpdater(instance, state, context);
}
ONE_TIME_INSTANCE_TRACKERS[state.id] = true;
}
// ----------------------------------------------------------------------------
function rendererUpdater(instance, state, context) {
// Don't do start/end on the context here because we don't need to hold up
// rendering for the book-keeping we do after the genericUpdater finishes.
// First allow generic update process to happen as usual
genericUpdater(instance, state, context);
// Any view props that were removed in the previous phase, genericUpdater(...),
// may have left orphaned children in our instance cache. Below is where those
// refs can be tracked in the first place, and then later removed as necessary
// to allow garbage collection.
// In some cases, seemingly with 'vtkColorTransferFunction', the server side
// object id may be conserved even though the actor and mapper containing or
// using it were deleted. In this case we must not unregister an instance
// which is depended upon by an incoming actor just because it was also
// depended upon by an outgoing one.
const allActorsDeps = new Set();
// Here we gather the list of dependencies (instance ids) for each view prop and
// store them on the instance, in case that view prop is later removed.
if (state.dependencies) {
state.dependencies.forEach((childState) => {
const viewPropInstance = context.getInstance(childState.id);
if (viewPropInstance) {
const flattenedDepIds = extractDependencyIds(childState);
viewPropInstance.set({ flattenedDepIds }, true);
flattenedDepIds.forEach((depId) => allActorsDeps.add(depId));
}
});
}
// Look for 'removeViewProp' calls and clean up references to dependencies of
// those view props.
const unregisterCandidates = new Set();
if (state.calls) {
state.calls
.filter(notSkippedInstance)
.filter((call) => call[0] === 'removeViewProp')
.forEach((call) => {
// extract any ids associated with a 'removeViewProp' call (though really there
// should just be a single one), and use them to build a flat list of all
// representation dependency ids which we can then use our synchronizer context
// to unregister
extractInstanceIds(call[1]).forEach((vpId) => {
const deps = context
.getInstance(vpId)
.get('flattenedDepIds').flattenedDepIds;
if (deps) {
// Consider each dependency for un-registering
deps.forEach((depId) => unregisterCandidates.add(depId));
}
// Consider the viewProp itself for un-registering
unregisterCandidates.add(vpId);
});
});
}
// Now unregister any instances that are no longer needed
const idsToUnregister = [...unregisterCandidates].filter(
(depId) => !allActorsDeps.has(depId)
);
idsToUnregister.forEach((depId) => context.unregisterInstance(depId));
}
// ----------------------------------------------------------------------------
function vtkRenderWindowUpdater(instance, state, context) {
// For each renderer we may be removing from this render window, we should first
// remove all of the renderer's view props, then have the render window re-render
// itself. This will clear the screen, at which point we can go about the normal
// updater process.
if (state.calls) {
state.calls
.filter(notSkippedInstance)
.filter((call) => call[0] === 'removeRenderer')
.forEach((call) => {
extractInstanceIds(call[1]).forEach((renId) => {
const renderer = context.getInstance(renId);
// Take brief detour through the view props to unregister the dependencies
// of each one
const viewProps = renderer.getViewProps();
viewProps.forEach((viewProp) => {
const deps = viewProp.get('flattenedDepIds').flattenedDepIds;
if (deps) {
deps.forEach((depId) => context.unregisterInstance(depId));
}
context.unregisterInstance(context.getInstanceId(viewProp));
});
});
});
}
instance.render();
// Now just do normal update process
genericUpdater(instance, state, context);
// Manage any associated behaviors
BehaviorManager.applyBehaviors(instance, state, context);
}
// ----------------------------------------------------------------------------
function colorTransferFunctionUpdater(instance, state, context) {
context.start(); // -> start(colorTransferFunctionUpdater)
if (!state.properties.nodes) {
instance.set(state.properties);
} else {
const nodes = state.properties.nodes.map(
([x, r, g, b, midpoint, sharpness]) => ({
x,
r,
g,
b,
midpoint,
sharpness,
})
);
instance.set({ ...state.properties, nodes }, true);
}
context.end(); // -> end(colorTransferFunctionUpdater)
}
function piecewiseFunctionUpdater(instance, state, context) {
context.start(); // -> start(piecewiseFunctionUpdater)
if (!state.properties.nodes) {
instance.set(state.properties);
} else {
const nodes = state.properties.nodes.map(([x, y, midpoint, sharpness]) => ({
x,
y,
midpoint,
sharpness,
}));
instance.set({ ...state.properties, nodes }, true);
instance.sortAndUpdateRange();
}
// instance.modified();
context.end(); // -> end(piecewiseFunctionUpdater)
}
// ----------------------------------------------------------------------------
function removeUnavailableArrays(fields, availableNames) {
const namesToDelete = [];
const size = fields.getNumberOfArrays();
for (let i = 0; i < size; i++) {
const array = fields.getArray(i);
const name = array.getName();
if (!availableNames.has(name)) {
namesToDelete.push(name);
}
}
for (let i = 0; i < namesToDelete.length; i++) {
fields.removeArray(namesToDelete[i]);
}
}
/**
* Get a unique string suitable for use as state.arrays key.
* @param {object} arrayMeta
* @returns {string} array key
*/
function getArrayKey(arrayMeta) {
// Two arrays can have exactly the same hash so try to distinquish with name.
const namePart = arrayMeta.name ? `_${arrayMeta.name}` : '';
return `${arrayMeta.hash}_${arrayMeta.dataType}${namePart}`;
}
function createDataSetUpdate(piecesToFetch = []) {
return (instance, state, context) => {
context.start(); // -> start(dataset-update)
// Make sure we provide container for std arrays
const localProperties = { ...state.properties };
if (!state.arrays) {
state.arrays = {};
}
// Array members
// => convert old format to generic state.arrays
for (let i = 0; i < piecesToFetch.length; i++) {
const key = piecesToFetch[i];
if (state.properties[key]) {
const arrayMeta = state.properties[key];
arrayMeta.registration = `set${macro.capitalize(key)}`;
const arrayKey = getArrayKey(arrayMeta);
state.arrays[arrayKey] = arrayMeta;
delete localProperties[key];
}
}
// Extract dataset fields
const fieldsArrays = state.properties.fields || [];
for (let i = 0; i < fieldsArrays.length; i++) {
const arrayMeta = fieldsArrays[i];
const arrayKey = getArrayKey(arrayMeta);
state.arrays[arrayKey] = arrayMeta;
}
delete localProperties.fields;
// Reset any pre-existing fields array
const arrayToKeep = {
pointData: new Set(),
cellData: new Set(),
fieldData: new Set(),
};
fieldsArrays.forEach(({ location, name }) => {
arrayToKeep[location].add(name);
});
removeUnavailableArrays(instance.getPointData(), arrayToKeep.pointData);
removeUnavailableArrays(instance.getCellData(), arrayToKeep.cellData);
// Generic handling
const cleanState = { ...state };
cleanState.properties = localProperties;
const res = genericUpdater(instance, cleanState, context);
// Finish what we started
context.end(); // -> end(dataset-update)
return res;
};
}
const polydataUpdater = createDataSetUpdate([
'points',
'polys',
'verts',
'lines',
'strips',
]);
const imageDataUpdater = createDataSetUpdate([]);
// ----------------------------------------------------------------------------
// Construct the type mapping
// ----------------------------------------------------------------------------
function setTypeMapping(type, buildFn = null, updateFn = genericUpdater) {
Iif (!build && !update) {
delete TYPE_HANDLERS[type];
return;
}
TYPE_HANDLERS[type] = { build: buildFn, update: updateFn };
}
// ----------------------------------------------------------------------------
const DEFAULT_ALIASES = {
vtkMapper: [
'vtkOpenGLPolyDataMapper',
'vtkCompositePolyDataMapper2',
'vtkDataSetMapper',
],
vtkProperty: ['vtkOpenGLProperty'],
vtkRenderer: ['vtkOpenGLRenderer'],
vtkCamera: ['vtkOpenGLCamera'],
vtkColorTransferFunction: ['vtkPVDiscretizableColorTransferFunction'],
vtkActor: ['vtkOpenGLActor', 'vtkPVLODActor'],
vtkLight: ['vtkOpenGLLight', 'vtkPVLight'],
vtkTexture: ['vtkOpenGLTexture'],
vtkImageMapper: ['vtkOpenGLImageSliceMapper'],
vtkVolumeMapper: ['vtkFixedPointVolumeRayCastMapper'],
};
// ----------------------------------------------------------------------------
const DEFAULT_MAPPING = {
vtkAxesActor: {
build: vtkAxesActor.newInstance,
update: genericUpdater,
},
vtkRenderWindow: {
build: vtkRenderWindow.newInstance,
update: vtkRenderWindowUpdater,
},
vtkRenderer: {
build: vtkRenderer.newInstance,
update: rendererUpdater,
},
vtkLookupTable: {
build: vtkLookupTable.newInstance,
update: genericUpdater,
},
vtkCamera: {
build: vtkCamera.newInstance,
update: oneTimeGenericUpdater,
},
vtkPolyData: {
build: vtkPolyData.newInstance,
update: polydataUpdater,
},
vtkImageData: {
build: vtkImageData.newInstance,
update: imageDataUpdater,
},
vtkMapper: {
build: vtkMapper.newInstance,
update: genericUpdater,
},
vtkGlyph3DMapper: {
build: vtkGlyph3DMapper.newInstance,
update: genericUpdater,
},
vtkProperty: {
build: vtkProperty.newInstance,
update: genericUpdater,
},
vtkActor: {
build: vtkActor.newInstance,
update: genericUpdater,
},
vtkLight: {
build: vtkLight.newInstance,
update: genericUpdater,
},
vtkColorTransferFunction: {
build: vtkColorTransferFunction.newInstance,
update: colorTransferFunctionUpdater,
},
vtkTexture: {
build: vtkTexture.newInstance,
update: genericUpdater,
},
vtkVolume: {
build: vtkVolume.newInstance,
update: genericUpdater,
},
vtkVolumeMapper: {
build: vtkVolumeMapper.newInstance,
update: genericUpdater,
},
vtkVolumeProperty: {
build: vtkVolumeProperty.newInstance,
update: genericUpdater,
},
vtkImageSlice: {
build: vtkImageSlice.newInstance,
update: genericUpdater,
},
vtkImageMapper: {
build: vtkImageMapper.newInstance,
update: genericUpdater,
},
vtkImageProperty: {
build: vtkImageProperty.newInstance,
update: genericUpdater,
},
vtkPiecewiseFunction: {
build: vtkPiecewiseFunction.newInstance,
update: piecewiseFunctionUpdater,
},
vtkCubeAxesActor: {
build: vtkCubeAxesActor.newInstance,
update: genericUpdater,
},
vtkScalarBarActor: {
build: vtkScalarBarActor.newInstance,
update: genericUpdater,
},
};
// ----------------------------------------------------------------------------
function setDefaultMapping(reset = true) {
if (reset) {
clearTypeMapping();
}
Object.keys(DEFAULT_MAPPING).forEach((type) => {
const mapping = DEFAULT_MAPPING[type];
setTypeMapping(type, mapping.build, mapping.update);
});
}
// ----------------------------------------------------------------------------
function applyDefaultAliases() {
// Add aliases
Object.keys(DEFAULT_ALIASES).forEach((name) => {
const aliases = DEFAULT_ALIASES[name];
aliases.forEach((alias) => {
TYPE_HANDLERS[alias] = TYPE_HANDLERS[name];
});
});
}
// ----------------------------------------------------------------------------
function alwaysUpdateCamera() {
setTypeMapping('vtkCamera', vtkCamera.newInstance);
applyDefaultAliases();
}
// ----------------------------------------------------------------------------
setDefaultMapping();
applyDefaultAliases();
// ----------------------------------------------------------------------------
// Avoid handling any lights at the moment
// => vtk seems fine and PV could be fine as well but not tested so keeping PV exclude
EXCLUDE_INSTANCE_MAP.vtkPVLight = {};
// ----------------------------------------------------------------------------
// Publicly exposed methods
// ----------------------------------------------------------------------------
export default {
build,
update,
genericUpdater,
oneTimeGenericUpdater,
setTypeMapping,
clearTypeMapping,
getSupportedTypes,
clearOneTimeUpdaters,
updateRenderWindow,
excludeInstance,
setDefaultMapping,
applyDefaultAliases,
alwaysUpdateCamera,
};
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