@cornerstonejs/core/dist/esm/RenderingEngine/vtkClasses/extendedVtkCamera.js

Cornerstone3D Core

import macro from '@kitware/vtk.js/macros.js';
import vtkCamera from '@kitware/vtk.js/Rendering/Core/Camera.js';
import { getProjectionScaleMatrix } from '../helpers/getProjectionScaleMatrix.js';
import { getNormalizedAspectRatio } from '../../utilities/getNormalizedAspectRatio.js';
import { mat4 } from 'gl-matrix';
function extendedVtkCamera(publicAPI, model) {
    model.classHierarchy.push('extendedVtkCamera');
    const superGetProjectionMatrix = publicAPI.getProjectionMatrix;
    publicAPI.getProjectionMatrix = (aspect, nearZ, farZ) => {
        const matrix = superGetProjectionMatrix(aspect, nearZ, farZ);
        const [sx, sy] = getNormalizedAspectRatio(model.aspectRatio);
        if (sx !== 1.0 || sy !== 1.0) {
            const scaleMatrix = getProjectionScaleMatrix([sx, sy]);
            mat4.multiply(matrix, scaleMatrix, matrix);
        }
        return matrix;
    };
    publicAPI.getAspectRatio = () => {
        return model.aspectRatio;
    };
    publicAPI.setAspectRatio = (aspectRatio) => {
        model.aspectRatio = aspectRatio;
    };
}
const DEFAULT_VALUES = {
    aspectRatio: [1, 1],
};
export function extend(publicAPI, model, initialValues = {}) {
    Object.assign(model, DEFAULT_VALUES, initialValues);
    vtkCamera.extend(publicAPI, model, initialValues);
    macro.setGet(publicAPI, model, ['aspectRatio']);
    extendedVtkCamera(publicAPI, model);
}
export const newInstance = macro.newInstance(extend, 'extendedVtkCamera');
export default { newInstance, extend };