@kitware/vtk.js/Widgets/Widgets3D/EllipseWidget/behavior.js

Visualization Toolkit for the Web

import widgetBehavior$1 from '../ShapeWidget/behavior.js';
import { vec3 } from 'gl-matrix';

function widgetBehavior(publicAPI, model) {
  model.shapeHandle = model.widgetState.getEllipseHandle();
  model.point1Handle = model.widgetState.getPoint1Handle();
  model.point2Handle = model.widgetState.getPoint2Handle();
  model.point1Handle.setManipulator(model.manipulator);
  model.point2Handle.setManipulator(model.manipulator);

  // We inherit shapeBehavior
  widgetBehavior$1(publicAPI, model);
  const superClass = {
    ...publicAPI
  };
  model.classHierarchy.push('vtkEllipseWidgetProp');
  publicAPI.setCorners = (point1, point2) => {
    if (superClass.setCorners) {
      superClass.setCorners(point1, point2);
    }
    const center = [0.5 * (point1[0] + point2[0]), 0.5 * (point1[1] + point2[1]), 0.5 * (point1[2] + point2[2])];
    const diagonal = [0, 0, 0];
    vec3.subtract(diagonal, point2, center);
    const right = model.shapeHandle.getRight();
    const up = model.shapeHandle.getUp();
    const dir = model.shapeHandle.getDirection();
    const rightComponent = vec3.dot(diagonal, right);
    const upComponent = vec3.dot(diagonal, up);
    const dirComponent = vec3.dot(diagonal, dir);
    model.shapeHandle.setOrigin(center);
    model.shapeHandle.setScale3([rightComponent, upComponent, dirComponent]);
  };
}

export { widgetBehavior as default };