vrj::GlDrawEllipsoidHeadFunctor Class Reference

Draw a basic ellipsoid head. More...

#include <vrj/Draw/OGL/GlDrawHeadFunctors.h>

Inheritance diagram for vrj::GlDrawEllipsoidHeadFunctor:

[legend]Collaboration diagram for vrj::GlDrawEllipsoidHeadFunctor:

[legend]List of all members.

Public Member Functions
	GlDrawEllipsoidHeadFunctor ()
virtual	~GlDrawEllipsoidHeadFunctor ()
virtual void	contextInit ()
	Called to initialize any context-specific information.
virtual void	draw (vrj::User *user)
	Callback function for drawing.
Protected Member Functions
void	drawSphere (const float radius, const int slices, const int stacks)
Protected Attributes
GLUquadricObj *	mQuadObj

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Detailed Description

Draw a basic ellipsoid head.

Definition at line 56 of file GlDrawHeadFunctors.h.

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Constructor & Destructor Documentation

vrj::GlDrawEllipsoidHeadFunctor::GlDrawEllipsoidHeadFunctor

(

)

Definition at line 44 of file GlDrawHeadFunctors.cpp.

   : mQuadObj(gluNewQuadric())
{
}

vrj::GlDrawEllipsoidHeadFunctor::~GlDrawEllipsoidHeadFunctor

(

)

[virtual]

Definition at line 49 of file GlDrawHeadFunctors.cpp.

References mQuadObj.

{
   gluDeleteQuadric(mQuadObj);
}

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Member Function Documentation

virtual void vrj::GlDrawEllipsoidHeadFunctor::contextInit

(

)

[inline, virtual]

Called to initialize any context-specific information.

Implements vrj::GlDrawObjectFunctor.

Definition at line 64 of file GlDrawHeadFunctors.h.

   {;}

void vrj::GlDrawEllipsoidHeadFunctor::draw

(

vrj::User *

user

)

[virtual]

Callback function for drawing.

Called when the object should be drawn.

Precondition:

GL context is set and ready to go.

Implements vrj::GlDrawObjectFunctor.

Definition at line 54 of file GlDrawHeadFunctors.cpp.

References drawSphere(), and vrj::User::getInterocularDistance().

{
   // All units are in meters.
   const float head_height(0.254f);      // 10 inches
   const float head_width_scale(0.7f);
   const float head_depth_scale(0.8f);
   //const float eye_vertical(0.067f);
   //const float eye_horizontal(0.21f);
   const float interocular(user->getInterocularDistance());
   const float eye_radius(0.0254f * 0.5f);      // 0.5 in

   glPushMatrix();
      // Head pos is the center of the eyes, so we need to move the head offset
      // a bit to get it positioned correctly.  We will do this by measuring
      // the distance from center of head to forehead and then translate by
      // the negative of that.
      gmtl::Vec3f forehead_offset(0.0f, head_height*0.17f,
                                  -(head_depth_scale*head_height)*0.45f);
      glTranslatef(-forehead_offset[0], -forehead_offset[1],
                   -forehead_offset[2]);

      // Scale to get an ellipsoid head.
      glScalef(head_width_scale, 1.0f, head_depth_scale);
      //glEnable(GL_BLEND);
      //glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
      glColor4f(0.5f, 0.75f, 0.90f, 0.67f);
      drawSphere(head_height/2.0f, 10, 10);             // Head
      //glDisable(GL_BLEND);
   glPopMatrix();

   // --- Draw the eyes --- //
   glPushMatrix();
      glColor3f(0.8f, 0.4f, 0.2f);
      //glTranslatef(0.0f, eye_vertical, -eye_horizontal);
      glPushMatrix();                     // Right eye
         glTranslatef((interocular/2.0f), 0.0f, 0.0f);
         drawSphere(eye_radius, 5, 5);
      glPopMatrix();
      glPushMatrix();                     // Left eye
         glTranslatef(-(interocular/2.0f), 0.0f, 0.0f);
         drawSphere(eye_radius, 5, 5);
      glPopMatrix();
   glPopMatrix();
}

void vrj::GlDrawEllipsoidHeadFunctor::drawSphere	(	const float	radius,
		const int	slices,
		const int	stacks
	)			[protected]

Definition at line 99 of file GlDrawHeadFunctors.cpp.

References mQuadObj.

Referenced by draw().

{
  gluQuadricDrawStyle(mQuadObj, (GLenum) GLU_FILL);
  gluQuadricNormals(mQuadObj, (GLenum) GLU_SMOOTH);
  gluSphere(mQuadObj, radius, slices, stacks);
}

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Member Data Documentation

GLUquadricObj* vrj::GlDrawEllipsoidHeadFunctor::mQuadObj [protected]

Definition at line 76 of file GlDrawHeadFunctors.h.

Referenced by drawSphere(), and ~GlDrawEllipsoidHeadFunctor().

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The documentation for this class was generated from the following files:

• GlDrawHeadFunctors.h
• GlDrawHeadFunctors.cpp

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