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 | 1x 1x 1x 1x 1x 1x | import * as macro from 'vtk.js/Sources/macros';
import { normalize } from 'vtk.js/Sources/Common/Core/Math';
export const MODE_RESET_CAMERA = 'resetcamera';
export const MODE_ORIENTATION = 'orientation';
export const MODE_SAME = 'same';
export const SynchronizationMode = {
MODE_RESET_CAMERA,
MODE_ORIENTATION,
MODE_SAME,
};
function vtkCameraSynchronizer(publicAPI, model) {
model.classHierarchy.push('vtkCameraSynchronizer');
const cameraState = new Float64Array(9);
const direction = new Float64Array(3);
const subscriptions = [];
function updateListeners() {
while (subscriptions.length) {
subscriptions.pop().unsubscribe();
}
if (!model.srcRenderer || !model.dstRenderer) {
return;
}
const srcCamera = model.srcRenderer.getActiveCamera();
const interactor = model.srcRenderer.getRenderWindow().getInteractor();
subscriptions.push(
srcCamera.onModified(() => {
if (!interactor.isAnimating()) {
publicAPI.update();
}
})
);
subscriptions.push(interactor.onAnimation(publicAPI.update));
subscriptions.push(interactor.onEndAnimation(publicAPI.update));
}
// Update listeners automatically
model._srcRendererChanged = updateListeners;
model._dstRendererChanged = updateListeners;
function updatePreviousValues(position, focalPoint, viewUp) {
if (
cameraState[0] !== position[0] ||
cameraState[1] !== position[1] ||
cameraState[2] !== position[2] ||
cameraState[3] !== focalPoint[0] ||
cameraState[4] !== focalPoint[1] ||
cameraState[5] !== focalPoint[2] ||
cameraState[6] !== viewUp[0] ||
cameraState[7] !== viewUp[1] ||
cameraState[8] !== viewUp[2]
) {
cameraState[0] = position[0];
cameraState[1] = position[1];
cameraState[2] = position[2];
cameraState[3] = focalPoint[0];
cameraState[4] = focalPoint[1];
cameraState[5] = focalPoint[2];
cameraState[6] = viewUp[0];
cameraState[7] = viewUp[1];
cameraState[8] = viewUp[2];
return cameraState;
}
return false;
}
publicAPI.update = () => {
if (!model.active || !model.srcRenderer || !model.dstRenderer) {
return;
}
const srcCamera = model.srcRenderer.getActiveCamera();
const dstCamera = model.dstRenderer.getActiveCamera();
const position = srcCamera.getReferenceByName('position');
const focalPoint = srcCamera.getReferenceByName('focalPoint');
const viewUp = srcCamera.getReferenceByName('viewUp');
const change = updatePreviousValues(position, focalPoint, viewUp);
if (!change) {
return;
}
if (model.mode === MODE_ORIENTATION) {
direction[0] = change[0] - change[3];
direction[1] = change[1] - change[4];
direction[2] = change[2] - change[5];
normalize(direction);
dstCamera.setPosition(
model.focalPoint[0] + model.distance * direction[0],
model.focalPoint[1] + model.distance * direction[1],
model.focalPoint[2] + model.distance * direction[2]
);
dstCamera.setFocalPoint(
model.focalPoint[0],
model.focalPoint[1],
model.focalPoint[2]
);
dstCamera.setViewUp(change[6], change[7], change[8]);
} else {
dstCamera.setPosition(change[0], change[1], change[2]);
dstCamera.setFocalPoint(change[3], change[4], change[5]);
dstCamera.setViewUp(change[6], change[7], change[8]);
}
if (model.mode === MODE_RESET_CAMERA) {
model.dstRenderer.resetCamera();
}
};
publicAPI.delete = macro.chain(
() => publicAPI.setSrcRenderer(null), // Will clear any listener
publicAPI.delete
);
// If src/dstRenderer provided at constructor register listeners
updateListeners();
}
export const DEFAULT_VALUES = {
mode: MODE_ORIENTATION,
focalPoint: [0, 0, 0],
distance: 6.8,
active: true,
// srcRenderer: null,
// dstRenderer: null,
};
export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);
// Build VTK API
macro.obj(publicAPI, model);
macro.setGet(publicAPI, model, [
'mode',
'active',
'srcRenderer',
'dstRenderer',
'distance',
]);
macro.setGetArray(publicAPI, model, ['focalPoint'], 3, 0);
// Object methods
vtkCameraSynchronizer(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(extend, 'vtkCameraSynchronizer');
export default { newInstance, extend, SynchronizationMode };
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