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Showing content from http://www.ncbi.nlm.nih.gov/IEB/ToolBox/CPP_DOC/doxyhtml/gldrawscale_8cpp_source.html below:

NCBI C++ ToolKit: src/gui/opengl/gldrawscale.cpp Source File

52

m_UseAbbrev(useAbbrev),

53

m_CoordConverter(

NULL

)

59 for

(

char

d =

'0'

; d <=

'9'

; ++d) {

79 for

(

unsigned int i

= 0;

< x; ++

) {

101 int

digitsI = (num == 0) ? 1 : (

int

) floor(

log10

((

float

)num) + 1);

104

}

else if

(digitsI == 2) {

106

}

else if

(num > 5) {

130 while

(

abs

(num) >= 10) {

132 if

(++

count

% 3 == 0) {

139

reverse(

tmp

.begin(),

tmp

.end());

145

oss.flags(oss.scientific);

152 float

decimal = (float)num;

153 while

(

abs

(num) >= 1000) {

155

decimal = (float) num / 1000;

175 unsigned int size

= 0;

177 int

digitsL = (left == 0) ? 1 : (

int

) floor(

log10

((

float

)

abs

(left)) + 1);

178 int

digitsR = (right == 0) ? 1 : (

int

) floor(

log10

((

float

)

abs

(right)) + 1);

185

(

unsigned int

)((

max

(digitsL, digitsR) +

max

(digitsL, digitsR) / 3)

197 if

(left < 0 || right < 0) {

210 throw

runtime_error(

"CGlDrawScale::Draw given non-positive width."

);

212 double

xScale, yScale;

215

GLdouble mvMatrix[16], projMatrix[16];

216

GLdouble wx1,wx2,wy1,wy2,wz;

218

glGetIntegerv(GL_VIEWPORT, viewport);

219

glGetDoublev(GL_MODELVIEW_MATRIX, mvMatrix);

220

glGetDoublev(GL_PROJECTION_MATRIX, projMatrix);

225 gluUnProjectX

(glL,0,0, mvMatrix, projMatrix, viewport, &wx1,&wy1,&wz);

226 gluUnProjectX

(glR,1,0, mvMatrix, projMatrix, viewport, &wx2,&wy2,&wz);

227

xScale = (wx2-wx1)/(glR-glL);

233 abs

(right-left) > width) {

240 int

labelInterval = (

int

) ceil(((

float

)(right-left) / width) *

244 int

minBound =

min

(left, right);

245 int

maxBound =

max

(left, right);

248 int

labelStart = left;

249 if

(labelStart % labelInterval != 0) {

250

labelStart = (labelStart / labelInterval) * labelInterval;

251 if

(labelStart < minBound || labelStart > maxBound) {

252

labelStart += labelInterval;

257 for

(

int

labelPos = labelStart;

258

labelPos >= minBound && labelPos <= maxBound;

259

labelPos += labelInterval) {

265

3.0f * yScale,

label

.c_str());

270 int

tickInterval =

max

(1,

abs

(labelInterval) / 5);

271 if

(labelInterval < 0) {

274 int

tickStart = left;

275 if

(tickStart % tickInterval != 0) {

276

tickStart = (tickStart / tickInterval) * tickInterval;

277 if

(tickStart < minBound || tickStart > maxBound) {

278

tickStart += tickInterval;

282 for

(

int

labelPos = tickStart;

283

labelPos >= minBound && labelPos <= maxBound;

284

labelPos += tickInterval) {

287

glVertex2d(glPos, (labelPos % labelInterval == 0) ? -yScale * 4.0

289

glVertex2d(glPos, 0);

CNcbiOstrstreamToString class helps convert CNcbiOstrstream to a string Sample usage:

string x_GenerateLabel(int num, EAbbrevType type) const

virtual TModelUnit TextWidth(const char *text) const =0

void Draw(int width, int left, int right) const

unsigned int x_Exp10(unsigned int x) const

virtual void TextOut(const char *text) const =0

virtual int ToGl(int) const =0

CGlDrawScale(IGlFont &font, EAbbrevType useAbbrev)

TModelUnit m_MaxDigitWidth

static const char * sm_SISymbols

CCoordConverter * m_CoordConverter

unsigned int x_CalcMaxLabelSize(int left, int right, EAbbrevType abbrev) const

void x_Normalize(int &num) const

int gluUnProjectX(GLdouble winx, GLdouble winy, GLdouble winz, const GLdouble modelMatrix[16], const GLdouble projMatrix[16], const GLint viewport[4], GLdouble *objx, GLdouble *objy, GLdouble *objz)

TModelUnit m_MaxSIPrefixWidth

#define END_NCBI_SCOPE

End previously defined NCBI scope.

#define BEGIN_NCBI_SCOPE

Define ncbi namespace.

static const char label[]

unsigned int

A callback function used to compare two keys in a database.

const struct ncbi::grid::netcache::search::fields::SIZE size

NCBI C++ stream class wrappers for triggering between "new" and "old" C++ stream libraries.

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