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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 | 1x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 24x 24x 24x 4x 4x 4x 24x 24x 24x 24x 48x 4x 4x 4x 4x 1x | import macro from 'vtk.js/Sources/macros';
import vtkActor from 'vtk.js/Sources/Rendering/Core/Actor';
import vtkGlyphRepresentation from 'vtk.js/Sources/Widgets/Representations/GlyphRepresentation';
import vtkPixelSpaceCallbackMapper from 'vtk.js/Sources/Rendering/Core/PixelSpaceCallbackMapper';
import vtkCylinderSource from 'vtk.js/Sources/Filters/Sources/CylinderSource';
import { allocateArray } from 'vtk.js/Sources/Widgets/Representations/WidgetRepresentation';
import { getPixelWorldHeightAtCoord } from 'vtk.js/Sources/Widgets/Core/WidgetManager';
import { vec3 } from 'gl-matrix';
const INFINITE_RATIO = 100000;
// ----------------------------------------------------------------------------
// vtkLineHandleRepresentation methods
// ----------------------------------------------------------------------------
function vtkLineHandleRepresentation(publicAPI, model) {
// Set our className
model.classHierarchy.push('vtkLineHandleRepresentation');
// --------------------------------------------------------------------------
// Generic rendering pipeline
// --------------------------------------------------------------------------
/*
* displayActors and displayMappers are used to render objects in HTML, allowing objects
* to be 'rendered' internally in a VTK scene without being visible on the final output
*/
model.displayMapper = vtkPixelSpaceCallbackMapper.newInstance();
model.displayActor = vtkActor.newInstance({ parentProp: publicAPI });
// model.displayActor.getProperty().setOpacity(0); // don't show in 3D
model.displayActor.setMapper(model.displayMapper);
model.displayMapper.setInputConnection(publicAPI.getOutputPort());
publicAPI.addActor(model.displayActor);
model.alwaysVisibleActors = [model.displayActor];
// --------------------------------------------------------------------------
publicAPI.setGlyphResolution = macro.chain(
publicAPI.setGlyphResolution,
model._pipeline.glyph.setThetaResolution,
model._pipeline.glyph.setPhiResolution
);
// --------------------------------------------------------------------------
function callbackProxy(coords) {
if (model.displayCallback) {
const filteredList = [];
const states = publicAPI.getRepresentationStates();
for (let i = 0; i < states.length; i++) {
if (states[i].getActive()) {
filteredList.push(coords[i]);
}
}
if (filteredList.length) {
model.displayCallback(filteredList);
return;
}
}
model.displayCallback();
}
publicAPI.setDisplayCallback = (callback) => {
model.displayCallback = callback;
model.displayMapper.setCallback(callback ? callbackProxy : null);
};
const superPublicAPI = { ...publicAPI };
publicAPI.requestData = (inData, outData) => {
superPublicAPI.requestData(inData, outData);
if (!model.holeWidth) {
return;
}
const internalPolyData = outData[0];
// Duplicate points and point data
const points = internalPolyData.getPoints();
const dataArrays = internalPolyData.getPointData().getArrays();
[points, ...dataArrays].forEach((array) => {
const oldNumberOfValues = array.getNumberOfValues();
array.resize(2 * array.getNumberOfTuples());
const arrayData = array.getData();
for (let i = 0; i < oldNumberOfValues; ++i) {
arrayData[i + oldNumberOfValues] = arrayData[i];
}
});
// Change the scale and origin of each line
const states = publicAPI.getRepresentationStates(inData[0]);
const nStates = states.length;
const scaleArray = internalPolyData.getPointData().getArrayByName('scale');
const orientationArray = internalPolyData
.getPointData()
.getArrayByName('orientation');
const defaultScale = [1, 1, 1];
const defaultOrientation = [1, 0, 0, 0, 1, 0, 0, 0, 1];
for (let i = 0; i < nStates; ++i) {
const j = i + nStates;
const scale = scaleArray?.getTuple(i) ?? defaultScale;
const orientationMatrix =
orientationArray?.getTuple(i) ?? defaultOrientation;
const originalPoint = points.getTuple(i);
// Divide the scale by two in the direction of the cylinder, as we duplicate the line
scale[2] *= 0.5;
scaleArray?.setTuple(i, scale);
scaleArray?.setTuple(j, scale);
// Add or subtract an offset to each point depending on the hole width
let holeWidth = model.holeWidth;
if (publicAPI.getScaleInPixels()) {
holeWidth *= getPixelWorldHeightAtCoord(
originalPoint,
model.displayScaleParams
);
}
const offset = vec3.fromValues(0, 0, 0.5 * scale[2] + holeWidth);
vec3.transformMat3(offset, offset, orientationMatrix);
points.setTuple(i, vec3.add(vec3.create(), originalPoint, offset));
points.setTuple(j, vec3.sub(vec3.create(), originalPoint, offset));
}
};
publicAPI.getSelectedState = (prop, compositeID) => {
const representationStates = publicAPI.getRepresentationStates();
return representationStates[compositeID % representationStates.length];
};
/**
* Overwrite scale3 to optionally make lines infinite
*/
const superScale3 = publicAPI.getScale3();
publicAPI.setScale3((polyData, states) => {
superScale3(polyData, states);
if (model.infiniteLine) {
const scales = allocateArray(
polyData,
'scale',
states.length,
'Float32Array',
3
).getData();
for (let i = 0; i < states.length; ++i) {
scales[3 * i + 2] = INFINITE_RATIO;
}
}
});
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
function defaultValues(initialValues) {
return {
infiniteLine: true,
glyphResolution: 4,
holeWidth: 0,
_pipeline: {
glyph: vtkCylinderSource.newInstance({
resolution: initialValues.glyphResolution ?? 4,
initAngle: initialValues.glyphAngle ?? Math.PI / 4,
direction: [0, 0, 1],
}),
},
...initialValues,
};
}
// ----------------------------------------------------------------------------
export function extend(publicAPI, model, initialValues = {}) {
vtkGlyphRepresentation.extend(publicAPI, model, defaultValues(initialValues));
macro.setGet(publicAPI, model, [
'infiniteLine',
'glyphResolution',
'holeWidth',
]);
// Object specific methods
vtkLineHandleRepresentation(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(
extend,
'vtkLineHandleRepresentation'
);
// ----------------------------------------------------------------------------
export default { newInstance, extend };
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