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import vtkActor from 'vtk.js/Sources/Rendering/Core/Actor';
import vtkGlyph3DMapper from 'vtk.js/Sources/Rendering/Core/Glyph3DMapper';
import vtkHandleRepresentation from 'vtk.js/Sources/Widgets/Representations/HandleRepresentation';
import vtkContextRepresentation from 'vtk.js/Sources/Widgets/Representations/ContextRepresentation';
import vtkSphereSource from 'vtk.js/Sources/Filters/Sources/SphereSource';
import vtkPolyData from 'vtk.js/Sources/Common/DataModel/PolyData';
import { ScalarMode } from 'vtk.js/Sources/Rendering/Core/Mapper/Constants';
import { getPixelWorldHeightAtCoord } from 'vtk.js/Sources/Widgets/Core/WidgetManager';
import vtkWidgetRepresentation, {
allocateArray,
} from 'vtk.js/Sources/Widgets/Representations/WidgetRepresentation';
import { Behavior } from 'vtk.js/Sources/Widgets/Representations/WidgetRepresentation/Constants';
import { OrientationModes } from 'vtk.js/Sources/Rendering/Core/Glyph3DMapper/Constants';
// ----------------------------------------------------------------------------
// vtkGlyphRepresentation methods
// ----------------------------------------------------------------------------
export function origin(publicAPI, model) {
return (polyData, states) => {
const points = allocateArray(polyData, 'points', states.length).getData();
let j = 0;
for (let i = 0; i < states.length; ++i) {
const coord = states[i].getOrigin(
model.scaleInPixels && model.displayScaleParams
);
points[j++] = coord[0];
points[j++] = coord[1];
points[j++] = coord[2];
}
};
}
export function noPosition(publicAPI, model) {
return (polyData, states) => {
allocateArray(polyData, 'points', 0);
};
}
export function color3(publicAPI, model) {
return (polyData, states) => {
model._pipeline.mapper.setColorByArrayName('color');
const colorArray = allocateArray(
polyData,
'color',
states.length,
'Uint8Array', // RGBA
4
);
const colors = colorArray.getData();
let j = 0;
for (let i = 0; i < states.length; ++i) {
let c3 = states[i].getColor3();
Iif (states[i].getActive() && model.useActiveColor) {
c3 = model.activeColor;
}
colors[j++] = c3[0];
colors[j++] = c3[1];
colors[j++] = c3[2];
colors[j++] = states[i].getOpacity();
}
colorArray.dataChange();
};
}
export function color(publicAPI, model) {
return (polyData, states) => {
model._pipeline.mapper.setColorByArrayName('color');
const colors = allocateArray(polyData, 'color', states.length).getData();
for (let i = 0; i < states.length; ++i) {
let c = states[i].getColor();
Iif (states[i].getActive() && model.useActiveColor) {
c = model.activeColor;
}
colors[i] = c;
}
};
}
export function noColor(publicAPI, model) {
return (polyData, states) => {
model._pipeline.mapper.setColorByArrayName(null);
};
}
export function scale3(publicAPI, model) {
return (polyData, states) => {
model._pipeline.mapper.setScaleArray('scale');
model._pipeline.mapper.setScaleFactor(1);
model._pipeline.mapper.setScaling(true);
model._pipeline.mapper.setScaleMode(
vtkGlyph3DMapper.ScaleModes.SCALE_BY_COMPONENTS
);
const scales = allocateArray(
polyData,
'scale',
states.length,
'Float32Array',
3
).getData();
let j = 0;
for (let i = 0; i < states.length; ++i) {
const state = states[i];
let scaleFactor = state.getActive() ? model.activeScaleFactor : 1;
if (publicAPI.getScaleInPixels()) {
scaleFactor *= getPixelWorldHeightAtCoord(
state.getOrigin(),
model.displayScaleParams
);
}
const scale = state.getScale3?.() ?? model.defaultScale;
scales[j++] = scaleFactor * scale[0];
scales[j++] = scaleFactor * scale[1];
scales[j++] = scaleFactor * scale[2];
}
};
}
export function scale1(publicAPI, model) {
return (polyData, states) => {
model._pipeline.mapper.setScaleArray('scale');
model._pipeline.mapper.setScaleFactor(1);
model._pipeline.mapper.setScaling(true);
const scales = allocateArray(polyData, 'scale', states.length).getData();
for (let i = 0; i < states.length; ++i) {
const state = states[i];
let scaleFactor = state.getActive() ? model.activeScaleFactor : 1;
if (publicAPI.getScaleInPixels()) {
scaleFactor *= getPixelWorldHeightAtCoord(
state.getOrigin(),
model.displayScaleParams
);
}
const scale = state.getScale1?.() ?? model.defaultScale;
scales[i] = scaleFactor * scale;
}
};
}
export function noScale(publicAPI, model) {
return (polyData, states) => {
model._pipeline.mapper.setScaleArray(null);
model._pipeline.mapper.setScaleFactor(model.defaultScale);
model._pipeline.mapper.setScaling(model.defaultScale !== 1);
};
}
export function direction(publicAPI, model) {
return (polyData, states) => {
model._pipeline.mapper.setOrientationArray('orientation');
model._pipeline.mapper.setOrientationMode(OrientationModes.MATRIX);
const orientation = allocateArray(
polyData,
'orientation',
states.length,
'Float32Array',
9
).getData();
for (let i = 0; i < states.length; ++i) {
const state = states[i];
const right = state.getRight ? state.getRight() : [1, 0, 0];
const up = state.getUp ? state.getUp() : [0, 1, 0];
const dir = state.getDirection ? state.getDirection() : [0, 0, 1];
orientation.set(right, 9 * i);
orientation.set(up, 9 * i + 3);
orientation.set(dir, 9 * i + 6);
}
};
}
export function noOrientation(publicAPI, model) {
return (polyData, states) => {
model._pipeline.mapper.setOrientationArray(null);
};
}
function vtkGlyphRepresentation(publicAPI, model) {
// Set our className
model.classHierarchy.push('vtkGlyphRepresentation');
const superClass = { ...publicAPI };
const internalPolyData = vtkPolyData.newInstance({ mtime: 0 });
function hasMixin(states, ...requiredMixins) {
return requiredMixins.every(
(requiredMixin) =>
states[0]?.[`get${macro.capitalize(requiredMixin)}`]?.() != null
);
}
// --------------------------------------------------------------------------
// Generic rendering pipeline
// --------------------------------------------------------------------------
// --------------------------------------------------------------------------
publicAPI.getRepresentationStates = (input = model.inputData[0]) =>
superClass
.getRepresentationStates(input)
.filter((state) => state.getOrigin?.() && (state.isVisible?.() ?? true));
// --------------------------------------------------------------------------
publicAPI.getMixins = (states) => {
const glyphProperties = {};
if (hasMixin(states, 'origin')) {
glyphProperties.position = model.applyMixin.origin;
} else {
glyphProperties.position = model.applyMixin.noPosition;
}
if (hasMixin(states, 'color3')) {
glyphProperties.color = model.applyMixin.color3;
} else if (hasMixin(states, 'color')) {
glyphProperties.color = model.applyMixin.color;
} else {
glyphProperties.color = model.applyMixin.noColor;
}
if (hasMixin(states, 'scale3')) {
glyphProperties.scale = model.applyMixin.scale3;
} else if (hasMixin(states, 'scale1')) {
glyphProperties.scale = model.applyMixin.scale1;
} else {
glyphProperties.scale = model.applyMixin.noScale;
}
if (hasMixin(states, 'direction')) {
glyphProperties.orientation = model.applyMixin.direction;
} else {
glyphProperties.orientation = model.applyMixin.noOrientation;
}
return glyphProperties;
};
publicAPI.requestData = (inData, outData) => {
const states = publicAPI.getRepresentationStates(inData[0]);
outData[0] = internalPolyData;
const glyphProperties = publicAPI.getMixins(states);
Object.values(glyphProperties).forEach((property) =>
property(internalPolyData, states)
);
internalPolyData.getPoints().modified();
internalPolyData.modified();
};
vtkWidgetRepresentation.connectPipeline(model._pipeline);
publicAPI.addActor(model._pipeline.actor);
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
function defaultValues(publicAPI, model, initialValues) {
return {
defaultScale: 1,
...initialValues,
_pipeline: {
source: initialValues._pipeline?.source ?? publicAPI,
glyph:
initialValues._pipeline?.glyph ?? // in case glyph was provided
vtkSphereSource.newInstance({
phiResolution: 8,
thetaResolution: 8,
}),
mapper:
initialValues._pipeline?.mapper ?? // in case mapper was provided
vtkGlyph3DMapper.newInstance({
scalarMode: ScalarMode.USE_POINT_FIELD_DATA,
}),
actor:
initialValues._pipeline?.actor ?? // in case actor was provided
vtkActor.newInstance({ parentProp: publicAPI }),
...initialValues._pipeline, // in case there is something else to add to pipeline
},
applyMixin: {
origin: initialValues.applyMixin?.origin ?? origin(publicAPI, model),
noPosition:
initialValues.applyMixin?.noPosition ?? noPosition(publicAPI, model),
color3: initialValues.applyMixin?.color3 ?? color3(publicAPI, model),
color: initialValues.applyMixin?.color ?? color(publicAPI, model),
noColor: initialValues.applyMixin?.noColor ?? noColor(publicAPI, model),
scale3: initialValues.applyMixin?.scale3 ?? scale3(publicAPI, model),
scale1: initialValues.applyMixin?.scale1 ?? scale1(publicAPI, model),
noScale: initialValues.applyMixin?.noScale ?? noScale(publicAPI, model),
direction:
initialValues.applyMixin?.direction ?? direction(publicAPI, model),
noOrientation:
initialValues.applyMixin?.noOrientation ??
noOrientation(publicAPI, model),
...initialValues.applyMixin,
},
};
}
// ----------------------------------------------------------------------------
export function extend(publicAPI, model, initialValues = {}) {
if (initialValues.behavior === Behavior.CONTEXT) {
vtkContextRepresentation.extend(
publicAPI,
model,
defaultValues(publicAPI, model, initialValues)
);
} else {
vtkHandleRepresentation.extend(
publicAPI,
model,
defaultValues(publicAPI, model, initialValues)
);
}
if ('lighting' in initialValues) {
model._pipeline.actor.getProperty().setLighting(initialValues.lighting);
}
macro.setGet(publicAPI, model._pipeline, ['defaultScale']);
macro.get(publicAPI, model._pipeline, ['glyph', 'mapper', 'actor']);
// Expose the mixin functions to allow overwriting
macro.setGet(publicAPI, model.applyMixin, Object.keys(model.applyMixin));
// Object specific methods
vtkGlyphRepresentation(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(extend, 'vtkGlyphRepresentation');
// ----------------------------------------------------------------------------
export default { newInstance, extend };
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