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Warning! This version of documentation is OUTDATED, as it describes an older SDK version! Please switch to the documentation for the latest SDK version.
Warning! This version of documentation describes an old SDK version which is no longer supported! Please upgrade to the latest SDK version.

Unigine::NodeDummy Class

Header: #include <UnigineNodes.h>
Inherits from: Node

A dummy node is a zero-sized node that has no visual representation. It is used to organize the other nodes into a hierarchy: the dummy node serves as a parent node and enables to organize the other nodes that are made its children into a group.

Notice
A bounding box of the dummy node is equal to the bounding boxes of all its child nodes combined together.

Creating a Dummy Node#

Create an instance of the NodeDummy class. You can also specify such settings as a name, transformation and so on.

Source code (C++)
#include <UnigineEditor.h>
#include <UnigineNodes.h>

using namespace Unigine;

int AppWorldLogic::init() {
	
	// create a dummy node
	NodeDummyPtr dummy = NodeDummy::create();
	// set a name
	dummy->setName("DummyNode");

	return 1;
}

Organizing a Nodes Hierarchy#

To organize nodes in a hierarchy, perform as follows:

  1. Create an instance of the NodeDummy class.
  2. Create a node and add it as a child to the created dummy node.
Source code (C++)
// AppWorldLogic.cpp

#include <UnigineEditor.h>
#include <UnigineNodes.h>
#include <UnigineString.h>

using namespace Unigine;
using namespace Math;

int AppWorldLogic::init() {
	
	// create a dummy node
	NodeDummyPtr root = NodeDummy::create();
	// set a name for the node
	root->setName("root");

	// create child nodes
	for (int y = -10; y <= 10; y++)
	{
		for (int x = -10; x <= 10; x++)
		{

			// create a mesh
			MeshPtr mesh = Mesh::create();
			mesh->addBoxSurface("box_0", vec3(1.0f));
			// create a node (an instance of the ObjectMeshStatic class)
			ObjectMeshStaticPtr node = ObjectMeshStatic::create(mesh);
			

			// set node transformation
			node->setWorldTransform(translate(Vec3(x * 2, y * 2, 0.0f)));
			// set a name for the node
			node->setName(String::format("mesh_%d_%d", x + 10, y + 10).get());
			// add the node as a child to the root dummy node
			root->addWorldChild(node->getNode());
		}
	}

	return 1;
}

NodeDummy Class

Members


static NodeDummyPtr create ( ) #

Constructor. Creates a dummy node.

static int type ( ) #

Returns the type of the node.

Return value

NodeDummy type identifier.
Last update: 2021-12-13
Build: ()