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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 | 1x 105x 105x 105x 105x 105x 105x 105x 105x 105x 105x 105x 105x 105x 105x 107x 2x 2x 2x 2x 2x 105x 205x 101x 205x 205x 205x 104x 105x 101x 105x 103x 105x 1x 105x 105x 105x 105x 105x 105x 1x | import macro from 'vtk.js/Sources/macros';
import vtkRenderer from 'vtk.js/Sources/Rendering/Core/Renderer';
import vtkRenderWindow from 'vtk.js/Sources/Rendering/Core/RenderWindow';
import vtkRenderWindowInteractor from 'vtk.js/Sources/Rendering/Core/RenderWindowInteractor';
import vtkInteractorStyleTrackballCamera from 'vtk.js/Sources/Interaction/Style/InteractorStyleTrackballCamera';
import vtkURLExtract from 'vtk.js/Sources/Common/Core/URLExtract';
// Load basic classes for vtk() factory
import 'vtk.js/Sources/Common/Core/Points';
import 'vtk.js/Sources/Common/Core/DataArray';
import 'vtk.js/Sources/Common/DataModel/PolyData';
import 'vtk.js/Sources/Rendering/Core/Actor';
import 'vtk.js/Sources/Rendering/Core/Mapper';
import 'vtk.js/Sources/Rendering/Misc/RenderingAPIs';
// Process arguments from URL
const userParams = vtkURLExtract.extractURLParameters();
function vtkGenericRenderWindow(publicAPI, model) {
// Capture resize trigger method to remove from publicAPI
const invokeResize = publicAPI.invokeResize;
delete publicAPI.invokeResize;
// VTK renderWindow/renderer
model.renderWindow = vtkRenderWindow.newInstance();
model.renderer = vtkRenderer.newInstance();
model.renderWindow.addRenderer(model.renderer);
// OpenGLRenderWindow
model._apiSpecificRenderWindow = model.renderWindow.newAPISpecificView(
userParams.viewAPI ?? model.defaultViewAPI
);
model.renderWindow.addView(model._apiSpecificRenderWindow);
// Interactor
model.interactor = vtkRenderWindowInteractor.newInstance();
model.interactor.setInteractorStyle(
vtkInteractorStyleTrackballCamera.newInstance()
);
model.interactor.setView(model._apiSpecificRenderWindow);
model.interactor.initialize();
// Expose background
publicAPI.setBackground = model.renderer.setBackground;
// Update BG color
publicAPI.setBackground(...model.background);
// Handle window resize
publicAPI.resize = () => {
if (model.container) {
const dims = model.container.getBoundingClientRect();
const devicePixelRatio = window.devicePixelRatio || 1;
model._apiSpecificRenderWindow.setSize(
Math.floor(dims.width * devicePixelRatio),
Math.floor(dims.height * devicePixelRatio)
);
invokeResize();
model.renderWindow.render();
}
};
// Handle DOM container relocation
publicAPI.setContainer = (el) => {
if (model.container) {
model.interactor.unbindEvents(model.container);
}
// Switch container
model.container = el;
model._apiSpecificRenderWindow.setContainer(model.container);
// Bind to new container
if (model.container) {
model.interactor.bindEvents(model.container);
}
};
// Properly release GL context
publicAPI.delete = macro.chain(
publicAPI.setContainer,
model._apiSpecificRenderWindow.delete,
() => {
window.removeEventListener('resize', publicAPI.resize);
},
publicAPI.delete
);
// Handle size
if (model.listenWindowResize) {
window.addEventListener('resize', publicAPI.resize);
}
publicAPI.resize();
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
const DEFAULT_VALUES = {
background: [0.32, 0.34, 0.43],
listenWindowResize: true,
container: null,
};
// ----------------------------------------------------------------------------
export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);
// Object methods
macro.obj(publicAPI, model);
macro.get(publicAPI, model, [
'renderWindow',
'renderer',
'_apiSpecificRenderWindow',
'interactor',
'container',
]);
macro.moveToProtected(publicAPI, model, ['_apiSpecificRenderWindow']);
macro.event(publicAPI, model, 'resize');
// Object specific methods
vtkGenericRenderWindow(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(extend);
// ----------------------------------------------------------------------------
export default { newInstance, extend };
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