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import vtkProp from 'vtk.js/Sources/Rendering/Core/Prop';
import vtkMapper from 'vtk.js/Sources/Rendering/Core/Mapper';
import vtkScalarsToColors from 'vtk.js/Sources/Common/Core/ScalarsToColors';
import vtkBoundingBox from 'vtk.js/Sources/Common/DataModel/BoundingBox';
// ----------------------------------------------------------------------------
// vtkAbstractRepresentationProxy methods
// ----------------------------------------------------------------------------
function vtkAbstractRepresentationProxy(publicAPI, model) {
// Set our className
model.classHierarchy.push('vtkAbstractRepresentationProxy');
function updateConnectivity() {
if (model.input) {
for (let i = 0; i < model.sourceDependencies.length; ++i) {
model.sourceDependencies[i].setInputData(model.input.getDataset());
}
}
}
publicAPI.setInput = (source) => {
if (model.sourceSubscription) {
model.sourceSubscription.unsubscribe();
model.sourceSubscription = null;
}
publicAPI.gcPropertyLinks('source');
model.input = source;
publicAPI.updateColorByDomain();
if (model.input) {
updateConnectivity();
model.sourceSubscription =
model.input.onDatasetChange(updateConnectivity);
}
// Allow dynamic registration of links at the source level
if (model.links) {
for (let i = 0; i < model.links.length; i++) {
const { link, property, persistent, updateOnBind, type } =
model.links[i];
if (type === undefined || type === 'source') {
const sLink = source.getPropertyLink(link, persistent);
publicAPI.registerPropertyLinkForGC(sLink, 'source');
sLink.bind(publicAPI, property, updateOnBind);
}
}
}
};
publicAPI.getInputDataSet = () =>
model.input ? model.input.getDataset() : null;
publicAPI.getDataArray = (arrayName, arrayLocation) => {
const [selectedArray, selectedLocation] = publicAPI.getColorBy();
const ds = publicAPI.getInputDataSet();
const fields = ds
? ds.getReferenceByName(arrayLocation || selectedLocation)
: null;
const array = fields
? fields.getArrayByName(arrayName || selectedArray)
: null;
return array;
};
publicAPI.getLookupTableProxy = (arrayName) => {
const arrayNameToUse = arrayName || publicAPI.getColorBy()[0];
if (arrayNameToUse) {
return model.proxyManager.getLookupTable(arrayNameToUse);
}
return null;
};
// In place edits, no need to re-assign it...
publicAPI.setLookupTableProxy = () => {};
publicAPI.getPiecewiseFunctionProxy = (arrayName) => {
const arrayNameToUse = arrayName || publicAPI.getColorBy()[0];
if (arrayNameToUse) {
return model.proxyManager.getPiecewiseFunction(arrayNameToUse);
}
return null;
};
// In place edits, no need to re-assign it...
publicAPI.setPiecewiseFunctionProxy = () => {};
publicAPI.rescaleTransferFunctionToDataRange = (n, l, c = -1) => {
const array = publicAPI.getDataArray(n, l);
const dataRange = array.getRange(c);
model.proxyManager.rescaleTransferFunctionToDataRange(n, dataRange);
};
publicAPI.isVisible = () => {
if (model.actors.length) {
return model.actors[0].getVisibility();
}
if (model.volumes.length) {
return model.volumes[0].getVisibility();
}
return false;
};
publicAPI.setVisibility = (visible) => {
let change = 0;
let count = model.actors.length;
while (count--) {
change += model.actors[count].setVisibility(visible);
}
count = model.volumes.length;
while (count--) {
change += model.volumes[count].setVisibility(visible);
}
if (change) {
publicAPI.modified();
}
};
publicAPI.setColorBy = (arrayName, arrayLocation, componentIndex = -1) => {
let colorMode = vtkMapper.ColorMode.DEFAULT;
let scalarMode = vtkMapper.ScalarMode.DEFAULT;
const colorByArrayName = arrayName;
const activeArray = publicAPI.getDataArray(arrayName, arrayLocation);
const scalarVisibility = !!activeArray;
const lookupTable = arrayName
? publicAPI.getLookupTableProxy(arrayName).getLookupTable()
: null;
if (lookupTable) {
if (componentIndex === -1) {
lookupTable.setVectorModeToMagnitude();
} else {
lookupTable.setVectorModeToComponent();
lookupTable.setVectorComponent(componentIndex);
}
}
if (scalarVisibility) {
colorMode = vtkMapper.ColorMode.MAP_SCALARS;
scalarMode =
arrayLocation === 'pointData'
? vtkMapper.ScalarMode.USE_POINT_FIELD_DATA
: vtkMapper.ScalarMode.USE_CELL_FIELD_DATA;
if (model.mapper.setLookupTable) {
model.mapper.setLookupTable(lookupTable);
}
if (model.rescaleOnColorBy) {
publicAPI.rescaleTransferFunctionToDataRange(
arrayName,
arrayLocation,
componentIndex
);
}
}
// Not all mappers have those fields
model.mapper.set(
{
colorByArrayName,
colorMode,
scalarMode,
scalarVisibility,
},
true
);
};
publicAPI.getColorBy = () => {
if (!model.mapper.getColorByArrayName) {
const ds = publicAPI.getInputDataSet();
if (ds.getPointData().getScalars()) {
return [ds.getPointData().getScalars().getName(), 'pointData', -1];
}
if (ds.getCellData().getScalars()) {
return [ds.getCellData().getScalars().getName(), 'cellData', -1];
}
if (ds.getPointData().getNumberOfArrays()) {
return [
ds.getPointData().getArrayByIndex(0).getName(),
'pointData',
-1,
];
}
if (ds.getCellData().getNumberOfArrays()) {
return [ds.getCellData().getArrayByIndex(0).getName(), 'cellData', -1];
}
return [];
}
const result = [];
const { colorByArrayName, colorMode, scalarMode, scalarVisibility } =
model.mapper.get(
'colorByArrayName',
'colorMode',
'scalarMode',
'scalarVisibility'
);
if (scalarVisibility && colorByArrayName) {
result.push(colorByArrayName);
result.push(
scalarMode === vtkMapper.ScalarMode.USE_POINT_FIELD_DATA
? 'pointData'
: 'cellData'
);
}
if (colorMode === vtkMapper.ColorMode.MAP_SCALARS && colorByArrayName) {
const lut = publicAPI
.getLookupTableProxy(colorByArrayName)
.getLookupTable();
const componentIndex =
lut.getVectorMode() === vtkScalarsToColors.VectorMode.MAGNITUDE
? -1
: lut.getVectorComponent();
result.push(componentIndex);
}
return result;
};
publicAPI.listDataArrays = () => {
const arrayList = [];
if (!model.input) {
return arrayList;
}
const dataset = publicAPI.getInputDataSet();
// Point data
const pointData = dataset.getPointData();
let size = pointData.getNumberOfArrays();
for (let idx = 0; idx < size; idx++) {
const array = pointData.getArrayByIndex(idx);
arrayList.push({
name: array.getName(),
location: 'pointData',
numberOfComponents: array.getNumberOfComponents(),
dataRange: array.getRange(),
});
}
// Cell data
const cellData = dataset.getCellData();
size = cellData.getNumberOfArrays();
for (let idx = 0; idx < size; idx++) {
const array = cellData.getArrayByIndex(idx);
arrayList.push({
name: array.getName(),
location: 'cellData',
numberOfComponents: array.getNumberOfComponents(),
dataRange: array.getRange(),
});
}
return arrayList;
};
publicAPI.updateColorByDomain = () => {
publicAPI.updateProxyProperty('colorBy', {
domain: {
arrays: publicAPI.listDataArrays(),
solidColor: !model.disableSolidColor,
},
});
};
publicAPI.delete = macro.chain(() => {
if (model.sourceSubscription) {
model.sourceSubscription.unsubscribe();
model.sourceSubscription = null;
}
}, publicAPI.delete);
// Fast getter for rendering
const nestedProps = [];
const bbox = [...vtkBoundingBox.INIT_BOUNDS];
function handleProp(prop) {
if (prop) {
vtkBoundingBox.addBounds(bbox, prop.getBounds());
nestedProps.push(prop);
}
}
publicAPI.getNestedProps = () => nestedProps;
publicAPI.getBounds = () => {
if (model.boundMTime < model.mtime) {
model.boundMTime = model.mtime;
vtkBoundingBox.reset(bbox);
nestedProps.length = 0;
model.actors.forEach(handleProp);
model.volumes.forEach(handleProp);
}
return bbox;
};
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
const DEFAULT_VALUES = {
boundMTime: 0,
actors: [],
volumes: [],
sourceDependencies: [],
rescaleOnColorBy: true,
};
// ----------------------------------------------------------------------------
function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);
vtkProp.extend(publicAPI, model, initialValues);
macro.setGet(publicAPI, model, ['rescaleOnColorBy']);
macro.get(publicAPI, model, ['input', 'mapper', 'actors', 'volumes']);
// Object specific methods
vtkAbstractRepresentationProxy(publicAPI, model);
macro.proxy(publicAPI, model);
}
export default { extend };
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