@thewtex/vtk.js-esm/Rendering/OpenGL/Actor2D.js

Visualization Toolkit for the Web

import { setGet, get, newInstance as newInstance$1 } from '../../macro.js';
import vtkViewNode from '../SceneGraph/ViewNode.js';
import { registerOverride } from './ViewNodeFactory.js';

// vtkOpenGLActor methods
// ----------------------------------------------------------------------------

function vtkOpenGLActor2D(publicAPI, model) {
  // Set our className
  model.classHierarchy.push('vtkOpenGLActor2D'); // Builds myself.

  publicAPI.buildPass = function (prepass) {
    if (prepass) {
      if (!model.renderable) {
        return;
      }

      model.openGLRenderer = publicAPI.getFirstAncestorOfType('vtkOpenGLRenderer');
      publicAPI.prepareNodes();
      publicAPI.addMissingNodes(model.renderable.getTextures());
      publicAPI.addMissingNode(model.renderable.getMapper());
      publicAPI.removeUnusedNodes();
    }
  }; // we draw textures, then mapper, then post pass textures


  publicAPI.traverseOpaquePass = function (renderPass) {
    if (!model.renderable || !model.renderable.getVisibility() || !model.renderable.getIsOpaque() || model.openGLRenderer.getSelector() && !model.renderable.getPickable()) {
      return;
    }

    publicAPI.apply(renderPass, true);
    model.children.forEach(function (child) {
      if (!child.isA('vtkOpenGLTexture')) {
        child.traverse(renderPass);
      }
    });
    publicAPI.apply(renderPass, false);
  }; // we draw textures, then mapper, then post pass textures


  publicAPI.traverseTranslucentPass = function (renderPass) {
    if (!model.renderable || !model.renderable.getVisibility() || model.renderable.getIsOpaque() || model.openGLRenderer.getSelector() && !model.renderable.getPickable()) {
      return;
    }

    publicAPI.apply(renderPass, true);
    model.children.forEach(function (child) {
      if (!child.isA('vtkOpenGLTexture')) {
        child.traverse(renderPass);
      }
    });
    publicAPI.apply(renderPass, false);
  };

  publicAPI.activateTextures = function () {
    // always traverse textures first, then mapper
    model.activeTextures = [];
    model.children.forEach(function (child) {
      if (child.isA('vtkOpenGLTexture')) {
        child.render();

        if (child.getHandle()) {
          model.activeTextures.push(child);
        }
      }
    });
  }; // Renders myself


  publicAPI.opaquePass = function (prepass, renderPass) {
    if (prepass) {
      model.context = publicAPI.getFirstAncestorOfType('vtkOpenGLRenderWindow').getContext();
      model.context.depthMask(true);
      publicAPI.activateTextures();
    } else {
      // deactivate textures
      model.activeTextures.forEach(function (child) {
        child.deactivate();
      });
    }
  }; // Renders myself


  publicAPI.translucentPass = function (prepass, renderPass) {
    if (prepass) {
      model.context = publicAPI.getFirstAncestorOfType('vtkOpenGLRenderWindow').getContext();
      model.context.depthMask(false);
      publicAPI.activateTextures();
    } else {
      // deactivate textures
      model.activeTextures.forEach(function (child) {
        child.deactivate();
      });
      model.context.depthMask(true);
    }
  };
} // ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------


var DEFAULT_VALUES = {
  context: null,
  activeTextures: []
}; // ----------------------------------------------------------------------------

function extend(publicAPI, model) {
  var initialValues = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
  Object.assign(model, DEFAULT_VALUES, initialValues); // Inheritance

  vtkViewNode.extend(publicAPI, model, initialValues); // Build VTK API

  setGet(publicAPI, model, ['context']);
  get(publicAPI, model, ['activeTextures']); // Object methods

  vtkOpenGLActor2D(publicAPI, model);
} // ----------------------------------------------------------------------------

var newInstance = newInstance$1(extend); // ----------------------------------------------------------------------------

var vtkActor2D = {
  newInstance: newInstance,
  extend: extend
}; // Register ourself to OpenGL backend if imported

registerOverride('vtkActor2D', newInstance);

export default vtkActor2D;
export { extend, newInstance };