lucaspalomodevelop/meshlab
1
0
Fork 0
mirror of https://github.com/lucaspalomodevelop/meshlab.git synced 2026-03-18 02:24:38 +00:00
Code Issues Packages Projects Releases Wiki Activity

- Added method TransferFunction::getColorByQuality

Browse Source 
- Corrected method TfChannel::getChannelValuef
This commit is contained in:
Paolo Cignoni cignoni 2008-02-05 19:29:22 +00:00
parent 32f43ea8e4
commit 32dc2fbc3b
2 changed files with 65 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

77
src/fgt/edit_quality/transferfunction.cpp
View File

@ -172,11 +172,54 @@ TF_KEY* TfChannel::splitKey(float x_pos)
float TfChannel::getChannelValuef(float xVal)
{
for (KEY_LISTiterator it=KEYS.begin(); it!=KEYS.end(); it++)
if ( (*it)->x == xVal )
return (*it)->y;
float result = 0.0f;
return -1.0f;
//if a x_position is known x, its key value is returned immediately
for (KEY_LISTiterator it=KEYS.begin(); it!=KEYS.end(); it++)
if ( (*it)->x >= xVal )
if ( (*it)->x == xVal )
return (*it)->y;
else
{
float x2 = (*it)->x;
float y2 = (*it)->y;
it--;
float x1 = (*it)->x;
float y1 = (*it)->y;
if (( x1 < xVal ) && ( x2 > xVal) )
{
//applying linear interpolation between two keys values
//angular coefficient for interpolating line
float m = (y2-y1) / (x2-x1);
//returning f(x) value for x in the interpolating line
result = m * (xVal - x1) + y1;
}
break;
}
//if ( it != KEYS.end()) return it->second->getLeftJunctionPoint();
/*
//finding lower border for x
KEY_LISTiterator low = up;
low --;
if (( (*low)->x < xVal ) && ( (*up)->x > xVal) )
if ( low != KEYS.end() && up != KEYS.end() )
{
//applying linear interpolation between two keys values
//angular coefficient for interpolating line
float m = (((*up)->y - (*low)->y) / ((*up)->x - (*low)->x));
//returning f(x) value for x in the interpolating line
result = (m * (x_position - (*low)->xcazzo)) + low->second->getRightJunctionPoint();
}
*/
return result;
}
@ -209,7 +252,7 @@ void TfChannel::updateKey(float old_x, float new_x, float new_y)
KEY_LISTiterator it = KEYS.find(old_x);
if ( it != KEYS.end())
{
// assert(it == KEYS.end());
// assert(it == KEYS.end());
TF_KEY *k = it->second;
this->removeKey(old_x);
@ -239,8 +282,8 @@ void TfChannel::testInitChannel()
if (offset > (1.0f-rand_y))
offset = (1.0f-rand_y);
this->addKey(rand_x,
rand_y,
rand_y + offset);
rand_y,
rand_y + offset);
}
this->addKey(1.0f, 0.0f, 0.0f);
@ -277,7 +320,7 @@ TransferFunction::TransferFunction(DEFAULT_TRANSFER_FUNCTIONS code)
_channels[GREEN_CHANNEL].addKey(1.0f,1.0f,TF_KEY::LEFT_JUNCTION_SIDE);
_channels[BLUE_CHANNEL].addKey(0.0f,0.0f,TF_KEY::LEFT_JUNCTION_SIDE);
_channels[BLUE_CHANNEL].addKey(1.0f,1.0f,TF_KEY::LEFT_JUNCTION_SIDE);
break;
break;
case RGB_TF:
_channels[RED_CHANNEL].addKey(0.0f,1.0f,TF_KEY::RIGHT_JUNCTION_SIDE);
_channels[RED_CHANNEL].addKey(0.5f,0.0f,TF_KEY::LEFT_JUNCTION_SIDE);
@ -330,7 +373,7 @@ TransferFunction::TransferFunction(QString fileName)
{
this->initTF();
// QString fileName = QFileDialog::getSaveFileName( 0, "Save Transfer Function File", fn + CSV_FILE_EXSTENSION, "CSV File (*.csv)" );
// QString fileName = QFileDialog::getSaveFileName( 0, "Save Transfer Function File", fn + CSV_FILE_EXSTENSION, "CSV File (*.csv)" );
QFile inFile( fileName );
@ -414,15 +457,23 @@ QColor* TransferFunction::buildColorBand()
{
relative_pos = absolute2RelativeValf((float)i, COLOR_BAND_SIZE);
/*_color_band[i].SetRGB( _channels[RED_CHANNEL].getChannelValueb( relative_pos ),
_channels[GREEN_CHANNEL].getChannelValueb( relative_pos ),
_channels[BLUE_CHANNEL].getChannelValueb( relative_pos ) );*/
_channels[GREEN_CHANNEL].getChannelValueb( relative_pos ),
_channels[BLUE_CHANNEL].getChannelValueb( relative_pos ) );*/
_color_band[i].setRgbF(_channels[RED_CHANNEL].getChannelValuef( relative_pos),
_channels[GREEN_CHANNEL].getChannelValuef( relative_pos ),
_channels[BLUE_CHANNEL].getChannelValuef( relative_pos ) );
_channels[GREEN_CHANNEL].getChannelValuef( relative_pos ),
_channels[BLUE_CHANNEL].getChannelValuef( relative_pos ) );
}
return _color_band;
}
Color4b TransferFunction::getColorByQuality (float percentageQuality)
{
return Color4b(_channels[RED_CHANNEL].getChannelValueb( percentageQuality ),
_channels[GREEN_CHANNEL].getChannelValueb( percentageQuality ),
_channels[BLUE_CHANNEL].getChannelValueb( percentageQuality ),
255 );
}
QString TransferFunction::saveColorBand( QString fn )
{

1
src/fgt/edit_quality/transferfunction.h
View File

@ -260,6 +260,7 @@ public:
int size();
QColor* buildColorBand();
QString saveColorBand( QString fileName );
Color4b getColorByQuality (float percentageQuality);
// QColor* getColorBand(){return _color_band;};
void moveChannelAhead( TF_CHANNELS channel_code );