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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 | 1x 11x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | import macro from 'vtk.js/Sources/macros';
import vtkColorMaps from 'vtk.js/Sources/Rendering/Core/ColorTransferFunction/ColorMapsLite';
import vtkPiecewiseGaussianWidget from 'vtk.js/Sources/Interaction/Widgets/PiecewiseGaussianWidget';
import svgLogo from 'vtk.js/Sources/Interaction/UI/Icons/Logo.svg';
import svgEdge from 'vtk.js/Sources/Interaction/UI/Icons/Contrast.svg';
import svgSpacing from 'vtk.js/Sources/Interaction/UI/Icons/Spacing.svg';
import style from 'vtk.js/Sources/Interaction/UI/VolumeController/VolumeController.module.css';
// ----------------------------------------------------------------------------
// Global structures
// ----------------------------------------------------------------------------
const PRESETS_OPTIONS = vtkColorMaps.rgbPresetNames.map(
(name) => `<option value="${name}">${name}</option>`
);
// ----------------------------------------------------------------------------
// vtkVolumeController methods
// ----------------------------------------------------------------------------
function vtkVolumeController(publicAPI, model) {
// Set our className
model.classHierarchy.push('vtkVolumeController');
model.el = document.createElement('div');
model.el.setAttribute('class', style.container);
model.widget = vtkPiecewiseGaussianWidget.newInstance({
numberOfBins: 256,
size: model.size,
});
function updateUseShadow() {
const useShadow = !!Number(model.el.querySelector('.js-shadow').value);
model.actor.getProperty().setShade(useShadow);
model.renderWindow.render();
}
function updateColorMapPreset() {
const sourceDS = model.actor.getMapper().getInputData();
if (!sourceDS) {
return;
}
const dataArray =
sourceDS.getPointData().getScalars() ||
sourceDS.getPointData().getArrays()[0];
const dataRange = model.rescaleColorMap
? model.colorDataRange
: dataArray.getRange();
const preset = vtkColorMaps.getPresetByName(
model.el.querySelector('.js-color-preset').value
);
const lookupTable = model.actor.getProperty().getRGBTransferFunction(0);
lookupTable.applyColorMap(preset);
lookupTable.setMappingRange(...dataRange);
lookupTable.updateRange();
model.renderWindow.render();
}
function updateSpacing() {
const value = Number(model.el.querySelector('.js-spacing').value);
const sourceDS = model.actor.getMapper().getInputData();
const sampleDistance =
0.7 *
Math.sqrt(
sourceDS
.getSpacing()
.map((v) => v * v)
.reduce((a, b) => a + b, 0)
);
model.actor
.getMapper()
.setSampleDistance(sampleDistance * 2 ** (value * 3.0 - 1.5));
model.renderWindow.render();
}
function updateEdgeGradient() {
const value = Number(model.el.querySelector('.js-edge').value);
if (value === 0) {
model.actor.getProperty().setUseGradientOpacity(0, false);
} else {
const sourceDS = model.actor.getMapper().getInputData();
const dataArray =
sourceDS.getPointData().getScalars() ||
sourceDS.getPointData().getArrays()[0];
const dataRange = dataArray.getRange();
model.actor.getProperty().setUseGradientOpacity(0, true);
const minV = Math.max(0.0, value - 0.3) / 0.7;
model.actor
.getProperty()
.setGradientOpacityMinimumValue(
0,
(dataRange[1] - dataRange[0]) * 0.2 * minV * minV
);
model.actor
.getProperty()
.setGradientOpacityMaximumValue(
0,
(dataRange[1] - dataRange[0]) * 1.0 * value * value
);
}
model.renderWindow.render();
}
publicAPI.setupContent = (
renderWindow,
actor,
isBackgroundDark,
useShadow = '1',
presetName = 'erdc_rainbow_bright'
) => {
publicAPI.setActor(actor);
publicAPI.setRenderWindow(renderWindow);
const sourceDS = model.actor.getMapper().getInputData();
const dataArray =
sourceDS.getPointData().getScalars() ||
sourceDS.getPointData().getArrays()[0];
const lookupTable = model.actor.getProperty().getRGBTransferFunction(0);
const piecewiseFunction = model.actor.getProperty().getScalarOpacity(0);
const stylePostFix = isBackgroundDark ? 'DarkBG' : 'BrightBG';
const localStyle = {};
['button', 'presets', 'shadow'].forEach((name) => {
localStyle[name] = style[`${name}${stylePostFix}`];
});
model.el.innerHTML = `
<div class="${style.line}">
<div class="${localStyle.button} js-button">${svgLogo}</div>
<select class="${localStyle.shadow} js-shadow js-toggle">
<option value="1">Use Shadow</option>
<option value="0">No Shadow</option>
</select>
<select class="${localStyle.presets} js-color-preset js-toggle">
${PRESETS_OPTIONS}
</select>
</div>
<div class="${style.line} js-toggle">
<div class="${style.sliderEntry}">
<div class="${style.sliderIcon}">${svgSpacing}</div>
<input type="range" min="0" max="1" value="0.4" step="0.01" class="${style.slider} js-spacing" />
</div>
<div class="${style.sliderEntry}">
<div class="${style.sliderIcon}">${svgEdge}</div>
<input type="range" min="0" max="1" value="0.2" step="0.01" class="${style.slider} js-edge" />
</div>
</div>
<div class="${style.piecewiseEditor} js-pwf js-toggle"></div>
`;
// DOM elements
const domToggleButton = model.el.querySelector('.js-button');
const domShadow = model.el.querySelector('.js-shadow');
const domPreset = model.el.querySelector('.js-color-preset');
const domSpacing = model.el.querySelector('.js-spacing');
const domEdge = model.el.querySelector('.js-edge');
const widgetContainer = model.el.querySelector('.js-pwf');
// Piecewise editor widget
model.widget.updateStyle({
backgroundColor: 'rgba(255, 255, 255, 0.6)',
histogramColor: 'rgba(100, 100, 100, 0.5)',
strokeColor: 'rgb(0, 0, 0)',
activeColor: 'rgb(255, 255, 255)',
handleColor: 'rgb(50, 150, 50)',
buttonDisableFillColor: 'rgba(255, 255, 255, 0.5)',
buttonDisableStrokeColor: 'rgba(0, 0, 0, 0.5)',
buttonStrokeColor: 'rgba(0, 0, 0, 1)',
buttonFillColor: 'rgba(255, 255, 255, 1)',
strokeWidth: 2,
activeStrokeWidth: 3,
buttonStrokeWidth: 1.5,
handleWidth: 3,
iconSize: 0,
padding: 10,
});
model.widget.addGaussian(0.5, 1.0, 0.5, 0.5, 0.4);
model.widget.setDataArray(dataArray.getData());
model.widget.setColorTransferFunction(lookupTable);
model.widget.applyOpacity(piecewiseFunction);
model.widget.setContainer(widgetContainer);
model.widget.bindMouseListeners();
model.colorDataRange = model.widget.getOpacityRange();
// Attach listeners
domToggleButton.addEventListener('click', publicAPI.toggleVisibility);
domShadow.addEventListener('change', updateUseShadow);
domPreset.addEventListener('change', updateColorMapPreset);
domSpacing.addEventListener('input', updateSpacing);
domEdge.addEventListener('input', updateEdgeGradient);
model.widget.onOpacityChange(() => {
model.widget.applyOpacity(piecewiseFunction);
model.colorDataRange = model.widget.getOpacityRange();
if (model.rescaleColorMap) {
updateColorMapPreset();
}
if (!model.renderWindow.getInteractor().isAnimating()) {
model.renderWindow.render();
}
});
model.widget.onAnimation((start) => {
if (start) {
model.renderWindow.getInteractor().requestAnimation(model.widget);
} else {
model.renderWindow.getInteractor().cancelAnimation(model.widget);
model.renderWindow.render();
}
});
lookupTable.onModified(() => {
model.widget.render();
if (!model.renderWindow.getInteractor().isAnimating()) {
model.renderWindow.render();
}
});
// Set default values
domShadow.value = Number(useShadow) ? '1' : '0';
domPreset.value = presetName;
// Apply values
updateUseShadow();
updateColorMapPreset();
updateSpacing();
updateEdgeGradient();
};
publicAPI.setContainer = (el) => {
if (model.container && model.container !== el) {
model.container.removeChild(model.el);
}
if (model.container !== el) {
model.container = el;
if (model.container) {
model.container.appendChild(model.el);
}
publicAPI.modified();
}
};
const rescaleColorMap = publicAPI.setRescaleColorMap;
publicAPI.setRescaleColorMap = (value) => {
if (rescaleColorMap(value)) {
updateColorMapPreset();
return true;
}
return false;
};
publicAPI.toggleVisibility = () => {
publicAPI.setExpanded(!publicAPI.getExpanded());
};
publicAPI.setExpanded = (expanded) => {
const elements = model.el.querySelectorAll('.js-toggle');
let count = elements.length;
model.expanded = expanded;
if (model.expanded) {
while (count--) {
elements[count].style.display = 'flex';
}
} else {
while (count--) {
elements[count].style.display = 'none';
}
}
};
publicAPI.getExpanded = () => model.expanded;
publicAPI.setSize = model.widget.setSize;
publicAPI.render = model.widget.render;
publicAPI.onAnimation = model.widget.onAnimation;
// Trigger rendering for any modified event
publicAPI.onModified(publicAPI.render);
publicAPI.setSize(...model.size);
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
const DEFAULT_VALUES = {
size: [600, 300],
expanded: true,
rescaleColorMap: false,
};
// ----------------------------------------------------------------------------
export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);
// Object methods
macro.obj(publicAPI, model);
macro.setGet(publicAPI, model, ['actor', 'renderWindow', 'rescaleColorMap']);
macro.get(publicAPI, model, ['widget']);
// Object specific methods
vtkVolumeController(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(extend, 'vtkVolumeController');
// ----------------------------------------------------------------------------
export default { newInstance, extend };
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