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NCBI C++ ToolKit: include/gui/opengl/gltube.hpp Source File

<

Curve>

(

,

min_segs,

u_hi,

& pos_hi,

)

;

spokes,

radius,

& ring)

;

<

Curve>

<

Curve>

<

Curve>

<

Curve>

<

Curve>

<

Curve>

<

Curve>

Draw(GetError(), 2,

);

<

Curve>

u_step = 1.0f / min_segs;

pos0 = EvalPos(0.0f);

GLenum modes[] ={

glPolygonMode(GL_FRONT_AND_BACK, modes[

]);

norm(0.0f, 1.0f, 0.0f);

axis = EvalPos(0.01f) - EvalPos(0.0f);

(norm.

(axis) < 0.0001f) {

norm =

(0.0f, 0.0f, 1.0f);

norm = axis.

(norm);

x_GetRing(0, norm, m_Spokes, m_Start, ring);

(u = 0; u < 1.0f; u += u_step) {

pos1 = EvalPos(u + u_step);

x_DrawRecursive(u, pos0, norm, ring, u+u_step, pos1,

);

<

Curve>

u_hi,

& pos_hi,

u_hi =

(u_hi, 1.0f);

u_mid = (u_lo + u_hi) * 0.5f;

pos_mid = EvalPos(u_mid);

len0 = (pos_lo - pos_hi).Length();

len1 = (pos_mid - pos_lo).Length() + (pos_hi - pos_mid).Length();

axis_hi_mid(pos_hi - pos_mid);

norm_hi = norm_hi.

(axis_hi_mid);

norm_mid(norm_hi + norm_lo);

((len1 - len0) / len0 >

) {

x_DrawRecursive(u_lo, pos_lo, norm_lo, ring, u_mid, pos_mid,

);

x_DrawRecursive(u_mid, pos_mid, norm_mid, ring, u_hi, pos_hi,

);

x_GetRing(u_hi, norm_hi, m_Spokes,

m_Start + u_hi * (m_End - m_Start),

glBegin(GL_QUAD_STRIP);

TRing::const_iterator this_iter = ring.begin();

TRing::const_iterator next_iter =

.begin();

( ; this_iter != ring.end(); ++this_iter, ++next_iter) {

glNormal3fv(this_iter->norm.GetData());

glVertex3fv(this_iter->pos.GetData());

glNormal3fv(next_iter->norm.GetData());

glVertex3fv(next_iter->pos.GetData());

<

Curve>

spokes,

radius,

u1 = u + 0.005f;

start = EvalPos(u);

axis = start - end;

ring.reserve(spokes + 1);

(

=0;

< spokes; ++

) {

rp.

= start + nv;

ring.push_back(ring.front());

<

Curve>

<

Curve>

m_Curve.GetError();

<

Curve>

m_Curve.SetError(

);

<

Curve>

m_Curve.GetPoint(

);

<

Curve>

m_Curve.SetPoint(

);

<

Curve>

m_Curve.SetPoint(

, point);

<

Curve>

m_Curve.EvalPos(u);

<

Curve>

m_Curve.EvalTan(u);

<

Curve>

m_Curve.EvalCurve(u);

class ICurve defines a basic interface for all curves.

Include a standard set of the NCBI C++ Toolkit most basic headers.

static DLIST_TYPE *DLIST_NAME() next(DLIST_LIST_TYPE *list, DLIST_TYPE *item)

CVect3< T > Cross(const CVect3< T > &) const

T Dot(const CVect3< T > &) const

void Rotate(CVect3< float > &point) const

float GetStartRadius(void) const

non-curve specifics

void SetStartRadius(float f)

void Draw(ERenderMode mode=eRender_Default) const

draw!

size_t GetNumSpokes(void) const

void x_DrawRecursive(float u_lo, const TPoint &pos_lo, TPoint &norm_lo, TRing &ring_lo, float u_hi, const TPoint &pos_hi, float error) const

internal (recursive) draw function this implements a subdivision with an error level

float GetEndRadius(void) const

TPoint EvalPos(float u) const

void SetEndRadius(float f)

TPoint EvalTan(float u) const

void SetNumSpokes(size_t spokes)

float GetError() const

access the level of detail

TPoint & SetPoint(size_t i)

void Recalc()

recalculate the curve (curve-specific)

const TPoint & GetPoint(size_t i) const

access control points of the curve

void x_GetRing(float u, const TPoint &normal, size_t spokes, float radius, TRing &ring) const

TPoint EvalCurve(float u) const

#define END_NCBI_SCOPE

End previously defined NCBI scope.

#define BEGIN_NCBI_SCOPE

Define ncbi namespace.

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