Splinespec Struct Reference

Collaboration diagram for Splinespec:

Public Member Functions
	Splinespec (int)
	~Splinespec (void)
void	kspecinit (Knotvector &)
void	kspecinit (Knotvector &, Knotvector &)
void	select (void)
void	layout (long)
void	setupquilt (Quilt_ptr)
void	copy (INREAL *)
void	transform (void)

Public Attributes
Knotspec *	kspec
int	dim
REAL *	outcpts

Detailed Description

Definition at line 95 of file tobezier.cc.

Constructor & Destructor Documentation

Splinespec()

Splinespec::Splinespec

(

int

dimen

)

Definition at line 146 of file tobezier.cc.

{
    dim = dimen;
}

~Splinespec()

Splinespec::~Splinespec

(

void

)

Definition at line 151 of file tobezier.cc.

{
    /* Note: do NOT delete 'outcpts' here since its address (not contents)
     * is copied in 'cpts' in this file in function Splinespec::setupquilt().
     * This block of memory will eventually be deleted in file quilt.c++ in
     * function Quilt::deleteMe() through 'cpts' so do NOT delete it here!
     */ 
    Knotspec *ktrav= kspec;         //start at beginning of list 
    while (ktrav != 0) {            //any items to delete? 
       Knotspec *deleteThis= ktrav; //remember to delete this 
       ktrav= ktrav->next;          //go to next item if any
       delete deleteThis;           //delete it
    }   
} /* ~Splinespec() */

Member Function Documentation

copy()

void Splinespec::copy

(

INREAL *

incpts

)

Definition at line 253 of file tobezier.cc.

{
    kspec->copy( incpts, outcpts );
}

Referenced by Quilt::toBezier().

kspecinit() [1/2]

void Splinespec::kspecinit

(

Knotvector &

knotvector

)

Definition at line 174 of file tobezier.cc.

{
    kspec = new Knotspec;
    kspec->inkbegin = knotvector.knotlist;
    kspec->inkend = knotvector.knotlist + knotvector.knotcount;
    kspec->prestride = (int) knotvector.stride; 
    kspec->order = knotvector.order;
    kspec->next = NULL;
}

Referenced by Quilt::toBezier().

kspecinit() [2/2]

void Splinespec::kspecinit	(	Knotvector &	sknotvector,
		Knotvector &	tknotvector
	)

Definition at line 185 of file tobezier.cc.

{
    kspec = new Knotspec;
    Knotspec *tkspec = new Knotspec;
 
    kspec->inkbegin = sknotvector.knotlist;
    kspec->inkend = sknotvector.knotlist + sknotvector.knotcount;
    kspec->prestride = (int) sknotvector.stride; 
    kspec->order = sknotvector.order;
    kspec->next = tkspec;
 
    tkspec->inkbegin = tknotvector.knotlist;
    tkspec->inkend = tknotvector.knotlist + tknotvector.knotcount;
    tkspec->prestride = (int) tknotvector.stride; 
    tkspec->order = tknotvector.order;
    tkspec->next = NULL;
}

layout()

void Splinespec::layout

(

long

ncoords

)

Definition at line 228 of file tobezier.cc.

{
 
    long stride = ncoords;
    for( Knotspec *knotspec = kspec; knotspec; knotspec=knotspec->next ) {
    knotspec->poststride = (int) stride;
    stride *= ((knotspec->bend-knotspec->bbegin)*knotspec->order + knotspec->postoffset);
        knotspec->preoffset  *= knotspec->prestride;
    knotspec->prewidth  *= knotspec->poststride;
    knotspec->postwidth *= knotspec->poststride;
    knotspec->postoffset *= knotspec->poststride;
        knotspec->ncoords = (int) ncoords;
    }
    outcpts = new REAL[stride];
    assert( outcpts != 0 );  
}

Referenced by Quilt::toBezier().

select()

void Splinespec::select

(

void

)

Definition at line 212 of file tobezier.cc.

{
    for( Knotspec *knotspec = kspec; knotspec; knotspec = knotspec->next ) {
    knotspec->preselect();
    knotspec->select();
    }
}

Referenced by Quilt::toBezier().

setupquilt()

void Splinespec::setupquilt

(

Quilt_ptr

quilt

)

Definition at line 266 of file tobezier.cc.

{
    Quiltspec_ptr qspec = quilt->qspec;
    quilt->eqspec = qspec + dim;
    for( Knotspec *knotspec = kspec; knotspec; knotspec=knotspec->next, qspec++ ) {
    qspec->stride   = knotspec->poststride;
    qspec->width    = knotspec->bend - knotspec->bbegin;
    qspec->order    = (int) knotspec->order;
    qspec->offset   = knotspec->postoffset;
    qspec->index    = 0;
    qspec->bdry[0]  = (knotspec->kleft == knotspec->kfirst) ? 1 : 0;
    qspec->bdry[1]  = (knotspec->kright == knotspec->klast) ? 1 : 0;
    qspec->breakpoints = new Knot[qspec->width+1];
    Knot_ptr k =  qspec->breakpoints;
    for( Breakpt *bk = knotspec->bbegin; bk <= knotspec->bend; bk++ )
        *(k++) = bk->value;
    }
    quilt->cpts = outcpts;
    quilt->next = 0;
}

Referenced by Quilt::toBezier().

transform()

void Splinespec::transform

(

void

)

Definition at line 295 of file tobezier.cc.

{
    Knotspec *knotspec;
    for( knotspec = kspec; knotspec; knotspec=knotspec->next )
        knotspec->istransformed = 0;
 
    for( knotspec = kspec; knotspec; knotspec=knotspec->next ) {
    for( Knotspec *kspec2 = kspec; kspec2; kspec2=kspec2->next )
        kspec2->kspectotrans = knotspec;
    kspec->transform( outcpts );
    knotspec->istransformed = 1;
    }
}

Referenced by Quilt::toBezier().

Member Data Documentation

dim

int Splinespec::dim

Definition at line 99 of file tobezier.cc.

Referenced by setupquilt(), and Splinespec().

kspec

Knotspec* Splinespec::kspec

Definition at line 98 of file tobezier.cc.

Referenced by copy(), kspecinit(), layout(), select(), setupquilt(), transform(), and ~Splinespec().

outcpts

REAL* Splinespec::outcpts

Definition at line 100 of file tobezier.cc.

Referenced by copy(), layout(), setupquilt(), and transform().

---

The documentation for this struct was generated from the following file:

• dll/opengl/glu32/src/libnurbs/internals/tobezier.cc