Hierarchical Modeling - Essentials of Interactive Computer Graphics - page 298

class CModel {
// ... similar to Tutorial 11.5 ...

UWB _ SceneNode m _ Body;

A:

// This is the body (base of root node of tree)

.

Source file. Model.h/cpp
files in the Model folder of the
D3D _ SceneNodeSiblings
project.

};

CModel::CModel() : m _ Body("Body") { // The CModel class constructor

.
// list for geometries of the body

UWB _ PrimitiveList * pList = new UWB _ PrimitiveList();
// Circle C b 0
UWB _ PrimitiveCircle * pC = new UWB _ PrimitiveCircle();
// Rectangle R b 1
UWB _ PrimitiveRectangle * pR = new UWB _ PrimitiveRectangle();
// initialize the attributes of C b 0 and R b 1
.
// insert C b 0 into the primitive list

B:

C: pList->Append(pC);

// insert R b 1 into the primitive list
pList->Append(pR);
// pList is the primitive of mBody

m _ Body.SetPrimitive(pLase);
// Instantiate left CArm object

D:

E:

CArm * left = new CArm( vec3 (1.0f,4.0f,0.0f), "LeftArm");
// Instantiate the right CArm object
CArm * right = new CArm( vec3 (1.0f,-4.0f,0.0f), "RightArm");
// left and right arms are set to be

m _ Body.InsertChildNode(left);
// children of the m _ Body
m _ Body.InsertChildNode(right);
.

F:

}

Listing 11.11. The CModel class of Tutorial 11.6.

the root scene node of the human model. The scene tree is initialized during the
construction of the CModel class. At label B, the primitive list, the head (circle
C b 0 ), and the torso (rectangle R b 1 ) are allocated and initialized. At label C, the