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 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | import macro from 'vtk.js/Sources/macros'; import vtkBoundingBox from 'vtk.js/Sources/Common/DataModel/BoundingBox'; const VTK_SMALL_NUMBER = 1e-12; // ---------------------------------------------------------------------------- // Global methods // ---------------------------------------------------------------------------- function evaluate(radius, center, x) { return ( (x[0] - center[0]) * (x[0] - center[0]) + (x[1] - center[1]) * (x[1] - center[1]) + (x[2] - center[2]) * (x[2] - center[2]) - radius * radius ); } function isPointIn3DEllipse(point, bounds) { const center = vtkBoundingBox.getCenter(bounds); let scale3 = vtkBoundingBox.computeScale3(bounds); scale3 = scale3.map((x) => Math.max(Math.abs(x), VTK_SMALL_NUMBER)); const radius = [ (point[0] - center[0]) / scale3[0], (point[1] - center[1]) / scale3[1], (point[2] - center[2]) / scale3[2], ]; return ( radius[0] * radius[0] + radius[1] * radius[1] + radius[2] * radius[2] <= 1 ); } // ---------------------------------------------------------------------------- // Static API // ---------------------------------------------------------------------------- export const STATIC = { evaluate, isPointIn3DEllipse, }; // ---------------------------------------------------------------------------- // vtkSphere methods // ---------------------------------------------------------------------------- function vtkSphere(publicAPI, model) { // Set our className model.classHierarchy.push('vtkSphere'); publicAPI.evaluateFunction = (xyz) => { const retVal = (xyz[0] - model.center[0]) * (xyz[0] - model.center[0]) + (xyz[1] - model.center[1]) * (xyz[1] - model.center[1]) + (xyz[2] - model.center[2]) * (xyz[2] - model.center[2]) - model.radius * model.radius; return retVal; }; publicAPI.evaluateGradient = (xyz) => { const retVal = [ 2.0 - (xyz[0] - model.center[0]), 2.0 - (xyz[1] - model.center[1]), 2.0 - (xyz[2] - model.center[2]), ]; return retVal; }; } // ---------------------------------------------------------------------------- // Object factory // ---------------------------------------------------------------------------- const DEFAULT_VALUES = { radius: 0.5, center: [0.0, 0.0, 0.0], }; // ---------------------------------------------------------------------------- export function extend(publicAPI, model, initialValues = {}) { Object.assign(model, DEFAULT_VALUES, initialValues); // Object methods macro.obj(publicAPI, model); macro.setGet(publicAPI, model, ['radius']); macro.setGetArray(publicAPI, model, ['center'], 3); vtkSphere(publicAPI, model); } // ---------------------------------------------------------------------------- export const newInstance = macro.newInstance(extend, 'vtkSphere'); // ---------------------------------------------------------------------------- export default { newInstance, extend, ...STATIC }; |