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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 | 1x 4x 4x 4x 4x 4x 4x 4x 4x 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';
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);
};
/**
* 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,
_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']);
// Object specific methods
vtkLineHandleRepresentation(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(
extend,
'vtkLineHandleRepresentation'
);
// ----------------------------------------------------------------------------
export default { newInstance, extend };
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