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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 | 123x 123x 123x 123x 123x 123x 123x 123x 123x 123x 157x 157x 157x 123x 122x 122x 123x 157x 157x 157x 157x 123x 23921x 123x 151x 151x 209x 151x 123x 251x 128x 128x 128x 128x 123x 245x 245x 123x 123x 1x 123x 123x 123x 123x 123x 1x | import macro from '@kitware/vtk.js/macros';
import vtkStreamingOpenGLRenderWindow from './vtkStreamingOpenGLRenderWindow';
import vtkRenderer from '@kitware/vtk.js/Rendering/Core/Renderer';
import vtkRenderWindow from '@kitware/vtk.js/Rendering/Core/RenderWindow';
import vtkRenderWindowInteractor from '@kitware/vtk.js/Rendering/Core/RenderWindowInteractor';
// Load basic classes for vtk() factory
import '@kitware/vtk.js/Common/Core/Points';
import '@kitware/vtk.js/Common/Core/DataArray';
import '@kitware/vtk.js/Common/DataModel/PolyData';
import '@kitware/vtk.js/Rendering/Core/Actor';
import '@kitware/vtk.js/Rendering/Core/Mapper';
/**
* vtkOffscreenMultiRenderWindow - A class to deal with offscreen rendering with multiple renderers.
*
* This class is based on the vtkGenericRenderWindow with two key differences:
* - the vtkGenericRenderWindow had a renderer at the top level, with helpers to get it from the renderWindow.
* although you could add more renderers, this gave special status to the first viewport. Which was confusing.
* - When checking the size of the container element we no longer check the client size, as the canvas is offscreen.
* - We aren't using interactor styles, so don't set one up.
*
* Additionally this class has some new helpers to easily add/associate renderers to different viewportIds.
*
*
* @param {*} publicAPI The public API to extend
* @param {*} model The private model to extend.
*/
function vtkOffscreenMultiRenderWindow(publicAPI, model) {
// Capture resize trigger method to remove from publicAPI
const invokeResize = publicAPI.invokeResize;
delete publicAPI.invokeResize;
// VTK renderWindow. No renderers set by default
model.renderWindow = vtkRenderWindow.newInstance();
model.rendererMap = {};
// OpenGLRenderWindow
model.openGLRenderWindow = vtkStreamingOpenGLRenderWindow.newInstance();
model.renderWindow.addView(model.openGLRenderWindow);
// Interactor
model.interactor = vtkRenderWindowInteractor.newInstance();
model.interactor.setView(model.openGLRenderWindow);
model.interactor.initialize();
publicAPI.addRenderer = ({ viewport, id, background }) => {
const renderer = vtkRenderer.newInstance({
viewport,
background: background || model.background,
});
model.renderWindow.addRenderer(renderer);
model.rendererMap[id] = renderer;
};
publicAPI.destroy = () => {
const rwi = model.renderWindow.getInteractor();
rwi.delete();
};
publicAPI.removeRenderer = (id) => {
const renderer = publicAPI.getRenderer(id);
model.renderWindow.removeRenderer(renderer);
renderer.delete();
delete model.rendererMap[id];
};
publicAPI.getRenderer = (id) => {
return model.rendererMap[id];
};
publicAPI.getRenderers = () => {
const { rendererMap } = model;
const renderers = Object.keys(rendererMap).map((id) => {
return { id, renderer: rendererMap[id] };
});
return renderers;
};
// Handle window resize
publicAPI.resize = () => {
if (model.container) {
// Don't use getBoundingClientRect() as in vtkGenericRenderWindow as is an offscreen canvas.
const { width, height } = model.container;
// Note: we do not scale by devicePixelRatio here because it has already
// been done when adding the offscreenCanvas viewport representations
model.openGLRenderWindow.setSize(Math.floor(width), Math.floor(height));
invokeResize();
model.renderWindow.render();
}
};
// Handle DOM container relocation
publicAPI.setContainer = (el) => {
// Switch container
model.container = el;
model.openGLRenderWindow.setContainer(model.container);
};
// Properly release GL context
publicAPI.delete = macro.chain(
publicAPI.setContainer,
publicAPI.destroy,
model.openGLRenderWindow.delete,
publicAPI.delete
);
publicAPI.resize();
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
const DEFAULT_VALUES = {
background: [0.0, 0.0, 0.0],
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',
'openGLRenderWindow',
'interactor',
'container',
]);
macro.event(publicAPI, model, 'resize');
// Object specific methods
vtkOffscreenMultiRenderWindow(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(extend);
// ----------------------------------------------------------------------------
export default { newInstance, extend };
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