bezierPatch.h File Reference

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Classes
struct	bezierPatch

Typedefs
typedef struct bezierPatch	bezierPatch

Functions
bezierPatch *	bezierPatchMake (float umin, float vmin, float umax, float vmax, int urder, int vorder, int dimension)
bezierPatch *	bezierPatchMake2 (float umin, float vmin, float umax, float vmax, int urder, int vorder, int dimension, int ustride, int vstride, float *ctlpoints)
bezierPatch *	bezierPatchInsert (bezierPatch *list, bezierPatch *b)
void	bezierPatchDelete (bezierPatch *b)
void	bezierPatchDeleteList (bezierPatch *b)
void	bezierPatchPrint (bezierPatch *b)
void	bezierPatchPrintList (bezierPatch *list)
void	bezierPatchEval (bezierPatch *b, float u, float v, float ret[])
void	bezierPatchEvalNormal (bezierPatch *b, float u, float v, float retNormal[])
void	bezierPatchDraw (bezierPatch *bpatch, int u_reso, int v_reso)
void	bezierPatchListDraw (bezierPatch *list, int u_reso, int v_reso)

Typedef Documentation

bezierPatch

typedef struct bezierPatch bezierPatch

Function Documentation

bezierPatchDelete()

void bezierPatchDelete

(

bezierPatch *

b

)

Definition at line 101 of file bezierPatch.cc.

{
  free(b->ctlpoints);
  free(b);
}

Referenced by bezierPatchDeleteList(), and bezierPatchMeshDelete().

bezierPatchDeleteList()

void bezierPatchDeleteList

(

bezierPatch *

b

)

Definition at line 109 of file bezierPatch.cc.

{
  bezierPatch *temp;
  while (b != NULL) {
    temp = b;
    b = b->next;
    bezierPatchDelete(temp);    
  }
}

bezierPatchDraw()

void bezierPatchDraw	(	bezierPatch *	bpatch,
		int	u_reso,
		int	v_reso
	)

Definition at line 175 of file bezierPatch.cc.

{
  if(bpatch->dimension == 3)
    glMap2f(GL_MAP2_VERTEX_3, bpatch->umin, bpatch->umax, 3*bpatch->vorder, bpatch->uorder, bpatch->vmin, bpatch->vmax,3, bpatch->vorder, (GLfloat*) bpatch->ctlpoints);
  else
    glMap2f(GL_MAP2_VERTEX_4, bpatch->umin, bpatch->umax, 4*bpatch->vorder, bpatch->uorder, bpatch->vmin, bpatch->vmax,3, bpatch->vorder, (GLfloat*) bpatch->ctlpoints);    
 
  glMapGrid2f(u_reso, bpatch->umin, bpatch->umax, 
          v_reso, bpatch->vmin, bpatch->vmax);
  glEvalMesh2(GL_LINE, 0, u_reso, 0, v_reso);
}

Referenced by bezierPatchListDraw().

bezierPatchEval()

void bezierPatchEval	(	bezierPatch *	b,
		float	u,
		float	v,
		float	ret[]
	)

Definition at line 142 of file bezierPatch.cc.

{
  if(   u >= b->umin && u<= b->umax
     && v >= b->vmin && v<= b->vmax)
    {
 
      bezierSurfEval(b->umin, b->umax, b->uorder, b->vmin, b->vmax, b->vorder, b->dimension, b->ctlpoints, b->dimension * b->vorder, b->dimension, u, v, ret);
 
     }
  else if(b->next != NULL)
    bezierPatchEval(b->next, u,v, ret);
  else 
    bezierSurfEval(b->umin, b->umax, b->uorder, b->vmin, b->vmax, b->vorder, b->dimension, b->ctlpoints, b->dimension * b->vorder, b->dimension, u, v, ret);    
}

Referenced by bezierPatchEval().

bezierPatchEvalNormal()

void bezierPatchEvalNormal	(	bezierPatch *	b,
		float	u,
		float	v,
		float	retNormal[]
	)

Definition at line 159 of file bezierPatch.cc.

{
  bezierSurfEvalNormal(b->umin, b->umax, b->uorder, b->vmin, b->vmax, b->vorder, b->dimension, b->ctlpoints, b->dimension * b->vorder, b->dimension, u, v, ret);  
 
  if(   u >= b->umin && u<= b->umax
     && v >= b->vmin && v<= b->vmax)
    {
      bezierSurfEvalNormal(b->umin, b->umax, b->uorder, b->vmin, b->vmax, b->vorder, b->dimension, b->ctlpoints, b->dimension * b->vorder, b->dimension, u, v, ret);
     }
  else if(b->next != NULL)
    bezierPatchEvalNormal(b->next, u,v, ret);
  else 
    bezierSurfEvalNormal(b->umin, b->umax, b->uorder, b->vmin, b->vmax, b->vorder, b->dimension, b->ctlpoints, b->dimension * b->vorder, b->dimension, u, v, ret);    
 
}

Referenced by bezierPatchEvalNormal().

bezierPatchInsert()

bezierPatch * bezierPatchInsert	(	bezierPatch *	list,
		bezierPatch *	b
	)

Definition at line 119 of file bezierPatch.cc.

{
  b->next = list;
  return b;
}

bezierPatchListDraw()

void bezierPatchListDraw	(	bezierPatch *	list,
		int	u_reso,
		int	v_reso
	)

Definition at line 187 of file bezierPatch.cc.

{
  bezierPatch *temp;
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_MAP2_VERTEX_3);
glEnable(GL_AUTO_NORMAL);
glEnable(GL_NORMALIZE);
glColor3f(1,0,0);
#ifdef DEBUG
printf("mapmap\n");
#endif
 
 
  for(temp = list; temp != NULL; temp = temp->next)
    bezierPatchDraw(temp, u_reso, v_reso);
}

bezierPatchMake()

bezierPatch * bezierPatchMake	(	float	umin,
		float	vmin,
		float	umax,
		float	vmax,
		int	urder,
		int	vorder,
		int	dimension
	)

Definition at line 52 of file bezierPatch.cc.

{
  bezierPatch* ret = (bezierPatch*) malloc(sizeof(bezierPatch));
  assert(ret);
  ret->umin = umin;
  ret->vmin = vmin;
  ret->umax = umax;
  ret->vmax = vmax;
  ret->uorder = uorder;
  ret->vorder = vorder;
  ret->dimension = dimension;
  ret->ctlpoints = (float*) malloc(sizeof(float) * dimension * uorder * vorder);
  assert(ret->ctlpoints);
 
  ret->next = NULL;
 
  return ret;
}

Referenced by bezierPatchMeshMake().

bezierPatchMake2()

bezierPatch * bezierPatchMake2	(	float	umin,
		float	vmin,
		float	umax,
		float	vmax,
		int	urder,
		int	vorder,
		int	dimension,
		int	ustride,
		int	vstride,
		float *	ctlpoints
	)

Definition at line 71 of file bezierPatch.cc.

{
  bezierPatch* ret = (bezierPatch*) malloc(sizeof(bezierPatch));
  assert(ret);
  ret->umin = umin;
  ret->vmin = vmin;
  ret->umax = umax;
  ret->vmax = vmax;
  ret->uorder = uorder;
  ret->vorder = vorder;
  ret->dimension = dimension;
  ret->ctlpoints = (float*) malloc(sizeof(float) * dimension * uorder * vorder);
  assert(ret->ctlpoints);
 
  /*copy the control points there*/
  int the_ustride = vorder * dimension;
  int the_vstride = dimension;
  for(int i=0; i<uorder; i++)
    for(int j=0; j<vorder; j++)
      for(int k=0; k<dimension; k++)
    ret->ctlpoints[i * the_ustride + j*the_vstride+k] = ctlpoints[i*ustride+j*vstride+k];
  
  ret->next = NULL;
 
  return ret;
}

Referenced by bezierPatchMeshPutPatch().

bezierPatchPrint()

void bezierPatchPrint

(

bezierPatch *

b

)

Definition at line 126 of file bezierPatch.cc.

{
  printf("bezierPatch:\n");
  printf("umin,umax=(%f,%f), (vmin, vmax)=(%f,%f)\n", b->umin, b->umax, b->vmin, b->vmax);
  printf("uorder=%i, vorder=%i\n", b->uorder, b->vorder);
  printf("idmension = %i\n", b->dimension);
}

Referenced by bezierPatchMeshPrint(), and bezierPatchPrintList().

bezierPatchPrintList()

void bezierPatchPrintList

(

bezierPatch *

list

)

Definition at line 135 of file bezierPatch.cc.

{
  bezierPatch* temp;
  for(temp=list; temp != NULL; temp = temp->next)
    bezierPatchPrint(temp);
}