Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 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 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 1x | import macro from 'vtk.js/Sources/macros';
import vtkPolyData from 'vtk.js/Sources/Common/DataModel/PolyData';
import vtkMatrixBuilder from 'vtk.js/Sources/Common/Core/MatrixBuilder';
import * as vtkMath from 'vtk.js/Sources/Common/Core/Math/';
// ----------------------------------------------------------------------------
// vtkCircleSource methods
// ----------------------------------------------------------------------------
function vtkCircleSource(publicAPI, model) {
// Set our classname
model.classHierarchy.push('vtkCircleSource');
function requestData(inData, outData) {
if (model.deleted) {
return;
}
let dataset = outData[0];
// Points
const points = macro.newTypedArray(model.pointType, model.resolution * 3);
// Lines/cells
// [# of points in line, vert_index_0, vert_index_1, ..., vert_index_0]
const edges = new Uint32Array(model.resolution + 2);
edges[0] = model.resolution + 1;
// generate polydata
const angle = (2.0 * Math.PI) / model.resolution;
for (let i = 0; i < model.resolution; i++) {
const x = model.center[0];
const y = model.radius * Math.cos(i * angle) + model.center[1];
const z = model.radius * Math.sin(i * angle) + model.center[2];
points.set([x, y, z], i * 3);
edges[i + 1] = i;
}
// connect endpoints
edges[edges.length - 1] = edges[1];
dataset = vtkPolyData.newInstance();
dataset.getPoints().setData(points, 3);
if (model.lines) {
dataset.getLines().setData(edges, 1);
}
if (model.face) {
dataset.getPolys().setData(edges, 1);
}
// translate an eventual center different to [0, 0, 0] to ensure rotation is correct
vtkMatrixBuilder
.buildFromRadian()
.translate(...model.center)
.rotateFromDirections([1, 0, 0], model.direction)
.translate(...vtkMath.multiplyScalar([...model.center], -1))
.apply(points);
// Update output
outData[0] = dataset;
}
// Expose methods
publicAPI.requestData = requestData;
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
function defaultValues(initialValues) {
return {
face: true,
center: [0, 0, 0],
lines: false,
direction: [1, 0, 0],
pointType: 'Float64Array',
radius: 1.0,
resolution: 6,
...initialValues,
};
}
// ----------------------------------------------------------------------------
export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, defaultValues(initialValues));
// Build VTK API
macro.obj(publicAPI, model);
macro.setGet(publicAPI, model, ['radius', 'resolution', 'lines', 'face']);
macro.setGetArray(publicAPI, model, ['center', 'direction'], 3);
macro.algo(publicAPI, model, 0, 1);
vtkCircleSource(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(extend, 'vtkCircleSource');
// ----------------------------------------------------------------------------
export default { newInstance, extend };
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