gridWrap Class Reference

#include <gridWrap.h>

Public Member Functions
	gridWrap (Int nUlines, Int nVlines, Real uMin, Real uMax, Real vMin, Real vMax)
	gridWrap (Int nUlines, Real *uvals, Int nVlines, Real *vvlas)
	~gridWrap ()
void	print ()
Int	get_n_ulines ()
Int	get_n_vlines ()
Real	get_u_min ()
Real	get_u_max ()
Real	get_v_min ()
Real	get_v_max ()
Real	get_u_value (Int i)
Real	get_v_value (Int j)
Real *	get_u_values ()
Real *	get_v_values ()
void	outputFanWithPoint (Int v, Int uleft, Int uright, Real vert[2], primStream *pStream)
void	draw ()
Int	isUniform ()

Private Attributes
Int	n_ulines
Int	n_vlines
Real	u_min
Real	u_max
Real	v_min
Real	v_max
Real *	u_values
Real *	v_values
Int	is_uniform

Detailed Description

Definition at line 42 of file gridWrap.h.

Constructor & Destructor Documentation

gridWrap() [1/2]

gridWrap::gridWrap	(	Int	nUlines,
		Int	nVlines,
		Real	uMin,
		Real	uMax,
		Real	vMin,
		Real	vMax
	)

Definition at line 79 of file gridWrap.cc.

{
  is_uniform = 1;
  n_ulines = nUlines;
  n_vlines = nVlines;
  u_min = uMin;
  u_max = uMax;
  v_min = vMin;
  v_max = vMax;
  u_values = (Real*) malloc(sizeof(Real) * n_ulines);
  assert(u_values);
  v_values = (Real*) malloc(sizeof(Real) * n_vlines);
  assert(v_values);
  
  Int i;
  assert(nUlines>=2);
  assert(nVlines>=2);
  Real du = (uMax-uMin)/(nUlines-1);
  Real dv = (vMax-vMin)/(nVlines-1);
 
  float tempu=uMin;
  u_values[0] = tempu;
  for(i=1; i<nUlines; i++)
    {
      tempu += du;
      u_values[i] = tempu;
    }
  u_values[nUlines-1] = uMax;
 
  float tempv=vMin;
  v_values[0] = tempv;
  for(i=1; i<nVlines; i++)
    {
      tempv += dv;
      v_values[i] = tempv;
    }
  v_values[nVlines-1] = vMax;
}

gridWrap() [2/2]

gridWrap::gridWrap	(	Int	nUlines,
		Real *	uvals,
		Int	nVlines,
		Real *	vvlas
	)

Definition at line 54 of file gridWrap.cc.

{
  assert(nUlines>=2);
  assert(nVlines>=2);
 
  is_uniform = 0;
  n_ulines = nUlines;
  n_vlines = nVlines;
  u_min = uvals[0];
  u_max = uvals[nUlines-1];
  v_min = vvals[0];
  v_max = vvals[nVlines-1];
  u_values = (Real*) malloc(sizeof(Real) * n_ulines);
  assert(u_values);
  v_values = (Real*) malloc(sizeof(Real) * n_vlines);
  assert(v_values);  
  
  Int i;
  for(i=0; i<n_ulines; i++)
    u_values[i] = uvals[i];
  for(i=0; i<n_vlines; i++)
    v_values[i] = vvals[i];
}

~gridWrap()

gridWrap::~gridWrap

(

)

Definition at line 121 of file gridWrap.cc.

{
  free(u_values);
  free(v_values);
}

Member Function Documentation

draw()

void gridWrap::draw

(

)

Definition at line 127 of file gridWrap.cc.

{
  int i,j;
  glBegin(GL_POINTS);
  for(i=0; i<n_ulines; i++)
    for(j=0; j<n_vlines; j++)
      glVertex2f(get_u_value(i), get_v_value(j));
  glEnd();
}

get_n_ulines()

Int gridWrap::get_n_ulines ( )

inline

Definition at line 71 of file gridWrap.h.

{return n_ulines;}

Referenced by Slicer::evalRBArray(), findLeftGridIndices(), findRightGridIndices(), and sampleMonoPoly().

get_n_vlines()

Int gridWrap::get_n_vlines ( )

inline

Definition at line 72 of file gridWrap.h.

{return n_vlines;}

Referenced by Slicer::evalRBArray(), findGridChains(), and sampleMonoPoly().

get_u_max()

Real gridWrap::get_u_max ( )

inline

Definition at line 74 of file gridWrap.h.

{return u_max;}

Referenced by Slicer::evalRBArray(), findLeftGridIndices(), and findRightGridIndices().

get_u_min()

Real gridWrap::get_u_min ( )

inline

Definition at line 73 of file gridWrap.h.

{return u_min;}

Referenced by Slicer::evalRBArray(), findLeftGridIndices(), and findRightGridIndices().

get_u_value()

Real gridWrap::get_u_value ( Int  i )

inline

Definition at line 78 of file gridWrap.h.

    {
      assert(i<n_ulines);
      /*if(i>=n_ulines){printf("ERROR, n_ulines=%i,i=%i\n",n_ulines,i);exit(0);}*/      
      return u_values[i];}

Referenced by draw(), gridBoundaryChain::drawInner(), findLeftGridIndices(), findRightGridIndices(), gridBoundaryChain::getInner_u_value(), gridBoundaryChain::gridBoundaryChain(), gridBoundaryChain::leftEndFan(), gridBoundaryChain::rightEndFan(), sampleBotLeftWithGridLine(), sampleBotLeftWithGridLinePost(), sampleBotRightWithGridLine(), sampleBotRightWithGridLinePost(), sampleCompBot(), sampleCompBotSimple(), sampleCompTop(), sampleCompTopSimple(), sampleLeftOneGridStep(), sampleLeftSingleTrimEdgeRegion(), sampleLeftSingleTrimEdgeRegionGen(), sampleRightOneGridStep(), sampleTopLeftWithGridLine(), sampleTopLeftWithGridLinePost(), sampleTopRightWithGridLine(), sampleTopRightWithGridLinePost(), stripOfFanLeft(), and stripOfFanRight().

get_u_values()

Real * gridWrap::get_u_values ( )

inline

Definition at line 85 of file gridWrap.h.

{return u_values;}

get_v_max()

Real gridWrap::get_v_max ( )

inline

Definition at line 76 of file gridWrap.h.

{return v_max;}

Referenced by Slicer::evalRBArray(), findGridChains(), and sampleMonoPoly().

get_v_min()

Real gridWrap::get_v_min ( )

inline

Definition at line 75 of file gridWrap.h.

{return v_min;}

Referenced by Slicer::evalRBArray(), findGridChains(), and sampleMonoPoly().

get_v_value()

Real gridWrap::get_v_value ( Int  j )

inline

Definition at line 83 of file gridWrap.h.

{return v_values[j];}

Referenced by draw(), findLeftGridIndices(), findRightGridIndices(), gridBoundaryChain::gridBoundaryChain(), sampleBotLeftWithGridLinePost(), sampleBotRightWithGridLinePost(), sampleCompBotSimple(), sampleCompTopSimple(), sampleCompTopSimpleOpt(), sampleTopLeftWithGridLinePost(), sampleTopRightWithGridLinePost(), stripOfFanLeft(), and stripOfFanRight().

get_v_values()

Real * gridWrap::get_v_values ( )

inline

Definition at line 86 of file gridWrap.h.

{return v_values;}

isUniform()

Int gridWrap::isUniform ( )

inline

Definition at line 93 of file gridWrap.h.

{return is_uniform;}

outputFanWithPoint()

void gridWrap::outputFanWithPoint	(	Int	v,
		Int	uleft,
		Int	uright,
		Real	vert[2],
		primStream *	pStream
	)

Definition at line 137 of file gridWrap.cc.

{
  Int i;
  if(uleft >= uright) 
    return; //no triangles to output.
    
  pStream->begin();
  pStream->insert(vert);
 
  assert(vert[1] != v_values[v]); //don't output degenerate triangles
 
  if(vert[1] > v_values[v]) //vertex is above this grid line: notice the orientation
    {
      for(i=uleft; i<=uright; i++)
    pStream->insert(u_values[i], v_values[v]);
    }
  else //vertex is below the grid line
    {
      for(i=uright; i>= uleft; i--)
    pStream->insert(u_values[i], v_values[v]);
    }   
  
  pStream->end(PRIMITIVE_STREAM_FAN);
}

Referenced by sampleBotLeftWithGridLine(), sampleBotLeftWithGridLinePost(), sampleBotRightWithGridLine(), sampleBotRightWithGridLinePost(), sampleCompBot(), sampleCompTop(), sampleTopLeftWithGridLine(), sampleTopLeftWithGridLinePost(), sampleTopRightWithGridLine(), and sampleTopRightWithGridLinePost().

print()

void gridWrap::print

(

)

Definition at line 47 of file gridWrap.cc.

{
  printf("n_ulines = %i\n", n_ulines);
  printf("n_vlines = %i\n", n_vlines);
  printf("u_min=%f, umax=%f, vmin=%f, vmax=%f\n", u_min, u_max, v_min, v_max);
}

Member Data Documentation

is_uniform

Int gridWrap::is_uniform

private

Definition at line 55 of file gridWrap.h.

Referenced by gridWrap(), and isUniform().

n_ulines

Int gridWrap::n_ulines

private

Definition at line 43 of file gridWrap.h.

Referenced by draw(), get_n_ulines(), get_u_value(), gridWrap(), and print().

n_vlines

Int gridWrap::n_vlines

private

Definition at line 44 of file gridWrap.h.

Referenced by draw(), get_n_vlines(), gridWrap(), and print().

u_max

Real gridWrap::u_max

private

Definition at line 45 of file gridWrap.h.

Referenced by get_u_max(), gridWrap(), and print().

u_min

Real gridWrap::u_min

private

Definition at line 45 of file gridWrap.h.

Referenced by get_u_min(), gridWrap(), and print().

u_values

Real* gridWrap::u_values

private

Definition at line 52 of file gridWrap.h.

Referenced by get_u_value(), get_u_values(), gridWrap(), outputFanWithPoint(), and ~gridWrap().

v_max

Real gridWrap::v_max

private

Definition at line 46 of file gridWrap.h.

Referenced by get_v_max(), gridWrap(), and print().

v_min

Real gridWrap::v_min

private

Definition at line 46 of file gridWrap.h.

Referenced by get_v_min(), gridWrap(), and print().

v_values

Real* gridWrap::v_values

private

Definition at line 53 of file gridWrap.h.

Referenced by get_v_value(), get_v_values(), gridWrap(), outputFanWithPoint(), and ~gridWrap().

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

• dll/opengl/glu32/src/libnurbs/nurbtess/gridWrap.h
• dll/opengl/glu32/src/libnurbs/nurbtess/gridWrap.cc