import macro from 'vtk.js/Sources/macro'; import * as vtkMath from 'vtk.js/Sources/Common/Core/Math';
export function projectDisplayToLine( x, y, lineOrigin, lineDirection, renderer, glRenderWindow ) { const near = glRenderWindow.displayToWorld(x, y, 0, renderer); const far = glRenderWindow.displayToWorld(x, y, 1, renderer); const viewDir = [0, 0, 0]; vtkMath.subtract(far, near, viewDir);
const normal = [0, 0, 0]; vtkMath.cross(lineDirection, viewDir, normal); vtkMath.cross(normal, viewDir, normal);
const numerator = vtkMath.dot( [near[0] - lineOrigin[0], near[1] - lineOrigin[1], near[2] - lineOrigin[2]], normal ); const denominator = vtkMath.dot(normal, lineDirection);
const result = lineDirection.slice(); vtkMath.multiplyScalar(result, numerator / denominator); vtkMath.add(lineOrigin, result, result);
return result; }
function vtkLineManipulator(publicAPI, model) { model.classHierarchy.push('vtkLineManipulator');
publicAPI.handleEvent = (callData, glRenderWindow) => projectDisplayToLine( callData.position.x, callData.position.y, model.origin, model.normal, callData.pokedRenderer, glRenderWindow ); }
const DEFAULT_VALUES = { origin: [0, 0, 0], normal: [0, 0, 1], };
export function extend(publicAPI, model, initialValues = {}) { Object.assign(model, DEFAULT_VALUES, initialValues); macro.obj(publicAPI, model); macro.setGetArray(publicAPI, model, ['origin', 'normal'], 3);
vtkLineManipulator(publicAPI, model); }
export const newInstance = macro.newInstance(extend, 'vtkLineManipulator');
export default { projectDisplayToLine, extend, newInstance };
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