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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 | 1x 4x 12x 4x 12x 2x 2x 2x 2x 1x 1x 1x 1x 2x 2x 2x 1x 2x 2x 1x 1x 1x 1x 2x 1x 1x 1x 2x 8x 4x 4x 4x 4x 4x 4x 2x 2x 1x 1x 1x 1x 2x 1x 2x 2x 2x 2x 2x 2x 1x | import macro from 'vtk.js/Sources/macros';
import vtkPiecewiseFunction from 'vtk.js/Sources/Common/DataModel/PiecewiseFunction';
import vtkPiecewiseGaussianWidget from 'vtk.js/Sources/Interaction/Widgets/PiecewiseGaussianWidget';
import Constants from './Constants';
const { Mode, Defaults } = Constants;
// ----------------------------------------------------------------------------
function applyPointsToPiecewiseFunction(points, range, pwf) {
const width = range[1] - range[0];
const rescaled = points.map(([x, y]) => [x * width + range[0], y]);
pwf.removeAllPoints();
rescaled.forEach(([x, y]) => pwf.addPoint(x, y));
}
// ----------------------------------------------------------------------------
function applyNodesToPiecewiseFunction(nodes, range, pwf) {
const width = range[1] - range[0];
const rescaled = nodes.map((n) => ({ ...n, x: n.x * width + range[0] }));
pwf.setNodes(rescaled);
}
// ----------------------------------------------------------------------------
function copyGaussians(gaussians) {
// gaussians is assumed to be an array of gaussian objects
return gaussians.map((g) => ({ ...g }));
}
// ----------------------------------------------------------------------------
// vtkPiecewiseFunctionProxy methods
// ----------------------------------------------------------------------------
function vtkPiecewiseFunctionProxy(publicAPI, model) {
// Set our className
model.classHierarchy.push('vtkPiecewiseFunctionProxy');
model.piecewiseFunction =
model.piecewiseFunction || vtkPiecewiseFunction.newInstance();
// Takes an array of gaussians
publicAPI.setGaussians = (gaussians) => {
model.gaussians = copyGaussians(gaussians || []);
if (model.gaussians.length === 0) {
model.gaussians = copyGaussians(Defaults.Gaussians);
}
publicAPI.applyMode();
};
// Takes an array of points [x, y]
publicAPI.setPoints = (points) => {
model.points = (points || []).slice();
if (model.points.length === 0) {
model.points = Defaults.Points.slice();
}
publicAPI.applyMode();
};
// Takes an array of PiecewiseFunction nodes
publicAPI.setNodes = (nodes) => {
model.nodes = (nodes || []).slice();
if (model.nodes.length === 0) {
model.nodes = Defaults.Nodes.slice();
}
publicAPI.applyMode();
};
publicAPI.setMode = (mode) => {
Iif (model.mode === mode) {
return;
}
model.mode = mode;
publicAPI.applyMode();
};
publicAPI.applyMode = () => {
switch (model.mode) {
case Mode.Gaussians:
vtkPiecewiseGaussianWidget.applyGaussianToPiecewiseFunction(
model.gaussians,
255,
model.dataRange,
model.piecewiseFunction
);
publicAPI.modified();
break;
case Mode.Points:
applyPointsToPiecewiseFunction(
model.points,
model.dataRange,
model.piecewiseFunction
);
publicAPI.modified();
break;
case Mode.Nodes:
applyNodesToPiecewiseFunction(
model.nodes,
model.dataRange,
model.piecewiseFunction
);
publicAPI.modified();
break;
default:
// noop
}
};
publicAPI.getLookupTableProxy = () =>
model.proxyManager.getLookupTable(model.arrayName);
publicAPI.setDataRange = (min, max) => {
if (model.dataRange[0] !== min || model.dataRange[1] !== max) {
model.dataRange[0] = min;
model.dataRange[1] = max;
publicAPI.applyMode();
}
};
// Initialization ------------------------------------------------------------
publicAPI.applyMode();
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
const DEFAULT_VALUES = {
mode: Mode.Gaussians,
gaussians: Defaults.Gaussians,
points: Defaults.Points,
nodes: Defaults.Nodes,
arrayName: 'No array associated',
arrayLocation: 'pointData',
dataRange: [0, 1],
};
// ----------------------------------------------------------------------------
function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);
macro.obj(publicAPI, model);
macro.setGet(publicAPI, model, ['arrayName']);
macro.get(publicAPI, model, [
'piecewiseFunction',
'gaussians',
'nodes',
'points',
'mode',
'dataRange',
]);
// Object specific methods
vtkPiecewiseFunctionProxy(publicAPI, model);
// Proxy handling
macro.proxy(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(
extend,
'vtkPiecewiseFunctionProxy'
);
// ----------------------------------------------------------------------------
export default { newInstance, extend, Mode, Defaults };
|