@kitware/vtk.js/Widgets/Manipulators/AbstractManipulator.js

Visualization Toolkit for the Web

import { m as macro } from '../../macros2.js';
import { s as subtract } from '../../Common/Core/Math/index.js';

// ----------------------------------------------------------------------------
// vtkAbstractManipulator methods
// ----------------------------------------------------------------------------

function vtkAbstractManipulator(publicAPI, model) {
  // Set our className
  model.classHierarchy.push('vtkAbstractManipulator');
  model._prevWorldCoords = [];
  publicAPI.getOrigin = callData => {
    if (model.userOrigin) return model.userOrigin;
    if (model.useCameraFocalPoint) return callData.pokedRenderer.getActiveCamera().getFocalPoint();
    if (model.handleOrigin) return model.handleOrigin;
    if (model.widgetOrigin) return model.widgetOrigin;
    return [0, 0, 0];
  };
  publicAPI.getNormal = callData => {
    if (model.userNormal) return model.userNormal;
    if (model.useCameraNormal) return callData.pokedRenderer.getActiveCamera().getDirectionOfProjection();
    if (model.handleNormal) return model.handleNormal;
    if (model.widgetNormal) return model.widgetNormal;
    return [0, 0, 1];
  };
  model._computeDeltaFromPrevCoords = curWorldCoords => {
    if (!model._prevWorldCoords?.length || !curWorldCoords?.length) return [0, 0, 0];
    return subtract(curWorldCoords, model._prevWorldCoords, []);
  };
  model._addWorldDeltas = manipulatorResults => {
    const {
      worldCoords: curWorldCoords
    } = manipulatorResults;
    const worldDelta = model._computeDeltaFromPrevCoords(curWorldCoords);
    if (curWorldCoords) model._prevWorldCoords = curWorldCoords;
    const deltas = {
      worldDelta
    };
    return {
      ...manipulatorResults,
      ...deltas
    };
  };
}

// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------

const DEFAULT_VALUES = {
  // userOrigin: null,
  // handleOrigin: null,
  // widgetOrigin: null,
  // userNormal: null,
  // handleNormal: null,
  // widgetNormal: null
  useCameraFocalPoint: false,
  useCameraNormal: false
};

// ----------------------------------------------------------------------------

function extend(publicAPI, model) {
  let initialValues = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
  Object.assign(model, DEFAULT_VALUES, initialValues);
  macro.obj(publicAPI, model);
  macro.setGet(publicAPI, model, ['useCameraFocalPoint', 'useCameraNormal']);
  macro.setGetArray(publicAPI, model, ['userOrigin', 'handleOrigin', 'widgetOrigin', 'userNormal', 'handleNormal', 'widgetNormal'], 3);
  vtkAbstractManipulator(publicAPI, model);
}

// ----------------------------------------------------------------------------

const newInstance = macro.newInstance(extend, 'vtkAbstractManipulator');

// ----------------------------------------------------------------------------

var vtkAbstractManipulator$1 = {
  extend,
  newInstance
};

export { vtkAbstractManipulator$1 as default, extend, newInstance };