@kitware/vtk.js/Widgets/Widgets3D/ResliceCursorWidget/state.js

Visualization Toolkit for the Web

import vtkStateBuilder from '../../Core/StateBuilder.js';
import { planeNameToViewType, ScrollingMethods, planeNames } from './Constants.js';

const defaultPlanes = {
  X: {
    normal: [1, 0, 0],
    viewUp: [0, 0, 1],
    color3: [255, 0, 0]
  },
  Y: {
    normal: [0, -1, 0],
    viewUp: [0, 0, 1],
    color3: [0, 255, 0]
  },
  Z: {
    normal: [0, 0, -1],
    viewUp: [0, -1, 0],
    color3: [0, 0, 255]
  }
};
const viewsColor3 = {
  X: [255, 0, 0],
  // red
  Y: [0, 255, 0],
  // green
  Z: [0, 0, 255] // blue
};
function generateState(planes = planeNames) {
  const state = vtkStateBuilder.createBuilder().addField({
    name: 'center',
    initialValue: [0, 0, 0]
  }).addField({
    name: 'image',
    initialValue: null
  }).addField({
    name: 'activeViewType',
    initialValue: null
  }).addField({
    name: 'planes',
    initialValue: planes.reduce((res, planeName) => ({
      ...res,
      [planeNameToViewType[planeName]]: {
        normal: defaultPlanes[planeName].normal,
        viewUp: defaultPlanes[planeName].viewUp
      }
    }), {})
  }).addField({
    name: 'scrollingMethod',
    initialValue: ScrollingMethods.MIDDLE_MOUSE_BUTTON
  }).addField({
    name: 'cameraOffsets',
    initialValue: {}
  }).addField({
    name: 'viewUpFromViewType',
    initialValue: {}
  }).addStateFromMixin({
    labels: ['handles', 'sphere', 'center'],
    mixins: ['origin', 'color3', 'scale1', 'visible', 'manipulator'],
    name: 'centerHandle',
    initialValues: {
      scale1: 30,
      color3: [255, 255, 255]
    }
  });
  planes.reduce((viewState, view) => planes.filter(v => v !== view).reduce((axisState, axis) => {
    // Line handle
    axisState.addStateFromMixin({
      labels: ['handles', 'line', `lineIn${view}`, `${axis}in${view}`],
      mixins: ['origin', 'color3', 'scale3', 'orientation', 'visible', 'manipulator'],
      name: `axis${axis}in${view}`,
      initialValues: {
        scale3: [4, 4, 4],
        color3: viewsColor3[axis]
      }
    });
    // Rotation handle
    for (let rotationHandle = 0; rotationHandle < 2; ++rotationHandle) {
      axisState.addStateFromMixin({
        labels: ['handles', 'sphere', 'rotation', `rotationIn${view}`, `${axis}in${view}`, `point${rotationHandle}`],
        mixins: ['origin', 'color3', 'scale1', 'visible', 'manipulator'],
        name: `rotationHandle${axis}in${view}${rotationHandle}`,
        initialValues: {
          scale1: 30,
          color3: viewsColor3[axis]
        }
      });
    }
    return axisState;
  }, viewState), state);
  return state.build();
}

export { generateState as default };