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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 | 21x 21x 21x 21x 182x 182x 182x 182x 182x 182x 182x 182x 182x 182x 182x 438x 438x 438x 438x 438x 182x 1x 21x 21x 21x 21x 1x | import { mat4, vec3 } from 'gl-matrix';
import macro from 'vtk.js/Sources/macros';
import vtkMapper from 'vtk.js/Sources/Rendering/Core/Mapper';
// ----------------------------------------------------------------------------
// vtkPixelSpaceCallbackMapper methods
// ----------------------------------------------------------------------------
function vtkPixelSpaceCallbackMapper(publicAPI, model) {
model.classHierarchy.push('vtkPixelSpaceCallbackMapper');
if (!model.callback) {
model.callback = () => {};
}
publicAPI.invokeCallback = (
dataset,
camera,
aspect,
windowSize,
depthValues
) => {
Iif (!model.callback) {
return;
}
const matrix = camera.getCompositeProjectionMatrix(aspect, -1, 1);
mat4.transpose(matrix, matrix);
const dataPoints = dataset.getPoints();
const result = new Float64Array(3);
const width = windowSize.usize;
const height = windowSize.vsize;
const hw = width / 2;
const hh = height / 2;
const coords = [];
for (let pidx = 0; pidx < dataPoints.getNumberOfPoints(); pidx += 1) {
const point = dataPoints.getPoint(pidx);
vec3.transformMat4(result, point, matrix);
const coord = [result[0] * hw + hw, result[1] * hh + hh, result[2], 0];
Iif (depthValues) {
const linIdx = Math.floor(coord[1]) * width + Math.floor(coord[0]);
const idx = linIdx * 4;
const r = depthValues[idx] / 255;
const g = depthValues[idx + 1] / 255;
const z = (r * 256 + g) / 257;
coord[3] = z * 2 - 1;
}
coords.push(coord);
}
model.callback(coords, camera, aspect, depthValues, [width, height]);
};
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
const DEFAULT_VALUES = {
callback: null,
useZValues: false,
};
// ----------------------------------------------------------------------------
export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);
// Inheritance
vtkMapper.extend(publicAPI, model, initialValues);
macro.setGet(publicAPI, model, ['callback', 'useZValues']);
// Object methods
vtkPixelSpaceCallbackMapper(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(
extend,
'vtkPixelSpaceCallbackMapper'
);
// ----------------------------------------------------------------------------
export default { newInstance, extend };
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