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import macro from 'vtk.js/Sources/macros';
import vtkBoundingBox from 'vtk.js/Sources/Common/DataModel/BoundingBox';
import vtkProp3D from 'vtk.js/Sources/Rendering/Core/Prop3D';
import vtkVolumeProperty from 'vtk.js/Sources/Rendering/Core/VolumeProperty';
const { vtkDebugMacro } = macro;
// ----------------------------------------------------------------------------
// vtkVolume methods
// ----------------------------------------------------------------------------
function vtkVolume(publicAPI, model) {
// Set our className
model.classHierarchy.push('vtkVolume');
publicAPI.getVolumes = () => publicAPI;
publicAPI.makeProperty = vtkVolumeProperty.newInstance;
publicAPI.getProperty = () => {
if (model.property === null) {
model.property = publicAPI.makeProperty();
}
return model.property;
};
publicAPI.getBounds = () => {
Iif (model.mapper === null) {
return model.bounds;
}
// Check for the special case when the mapper's bounds are unknown
const bds = model.mapper.getBounds();
Iif (!bds || bds.length !== 6) {
return bds;
}
// Check for the special case when the actor is empty.
Iif (bds[0] > bds[1]) {
model.mapperBounds = bds.concat(); // copy the mapper's bounds
model.bounds = [1, -1, 1, -1, 1, -1];
model.boundsMTime.modified();
return bds;
}
// Check if we have cached values for these bounds - we cache the
// values returned by model.mapper.getBounds() and we store the time
// of caching. If the values returned this time are different, or
// the modified time of this class is newer than the cached time,
// then we need to rebuild.
const zip = (rows) => rows[0].map((_, c) => rows.map((row) => row[c]));
if (
!model.mapperBounds ||
!zip([bds, model.mapperBounds]).reduce(
(a, b) => a && b[0] === b[1],
true
) ||
publicAPI.getMTime() > model.boundsMTime.getMTime()
) {
vtkDebugMacro('Recomputing bounds...');
model.mapperBounds = bds.map((x) => x);
const bbox = [];
vtkBoundingBox.getCorners(bds, bbox);
publicAPI.computeMatrix();
const tmp4 = new Float64Array(16);
mat4.transpose(tmp4, model.matrix);
bbox.forEach((pt) => vec3.transformMat4(pt, pt, tmp4));
/* eslint-disable no-multi-assign */
model.bounds[0] = model.bounds[2] = model.bounds[4] = Number.MAX_VALUE;
model.bounds[1] = model.bounds[3] = model.bounds[5] = -Number.MAX_VALUE;
/* eslint-enable no-multi-assign */
model.bounds = model.bounds.map((d, i) =>
i % 2 === 0
? bbox.reduce((a, b) => (a > b[i / 2] ? b[i / 2] : a), d)
: bbox.reduce((a, b) => (a < b[(i - 1) / 2] ? b[(i - 1) / 2] : a), d)
);
model.boundsMTime.modified();
}
return model.bounds;
};
publicAPI.getMTime = () => {
let mt = model.mtime;
if (model.property !== null) {
const time = model.property.getMTime();
mt = time > mt ? time : mt;
}
return mt;
};
publicAPI.getRedrawMTime = () => {
let mt = model.mtime;
if (model.mapper !== null) {
let time = model.mapper.getMTime();
mt = time > mt ? time : mt;
if (model.mapper.getInput() !== null) {
// FIXME !!! getInputAlgorithm / getInput
model.mapper.getInputAlgorithm().update();
time = model.mapper.getInput().getMTime();
mt = time > mt ? time : mt;
}
}
return mt;
};
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
const DEFAULT_VALUES = {
mapper: null,
property: null,
bounds: [1, -1, 1, -1, 1, -1],
};
// ----------------------------------------------------------------------------
export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);
// Inheritance
vtkProp3D.extend(publicAPI, model, initialValues);
// vtkTimeStamp
model.boundsMTime = {};
macro.obj(model.boundsMTime);
// Build VTK API
macro.set(publicAPI, model, ['property']);
macro.setGet(publicAPI, model, ['mapper']);
macro.getArray(publicAPI, model, ['bounds'], 6);
// Object methods
vtkVolume(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(extend, 'vtkVolume');
// ----------------------------------------------------------------------------
export default { newInstance, extend };
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