void Na2DViewer::paintCrosshair(QPainter& painter)
{
float scale = defaultScale * cameraModel.scale();
QBrush brush1(Qt::black);
QBrush brush2(QColor(255, 255, 180));
QPen pen1(brush1, 2.0/scale);
QPen pen2(brush2, 1.0/scale);
// qDebug() << "paint crosshair";
// Q: Why all this complicated math instead of just [width()/2, height()/2]?
// A: This helps debug/document placement of image focus
qreal w2 = (pixmap.width() - 1.0) / 2.0; // origin at pixel center, not corner
qreal h2 = (pixmap.height() - 1.0) / 2.0; // origin at pixel center, not corner
qreal cx = w2 + flip_X * (cameraModel.focus().x() - w2) + 0.5;
qreal cy = h2 + flip_Y * (cameraModel.focus().y() - h2) + 0.5;
QPointF f(cx, cy);
QPointF dx1(4.0 / scale, 0);
QPointF dy1(0, 4.0 / scale);
QPointF dx2(10.0 / scale, 0); // crosshair size is ten pixels
QPointF dy2(0, 10.0 / scale);
painter.setPen(pen1);
painter.drawLine(f + dx1, f + dx2);
painter.drawLine(f - dx1, f - dx2);
painter.drawLine(f + dy1, f + dy2);
painter.drawLine(f - dy1, f - dy2);
painter.setPen(pen2);
painter.drawLine(f + dx1, f + dx2);
painter.drawLine(f - dx1, f - dx2);
painter.drawLine(f + dy1, f + dy2);
painter.drawLine(f - dy1, f - dy2);
}
void InterpolateBicubic::set_table( const std::vector<Value>& ff ){
plumed_assert( getNumberOfSplinePoints()==ff.size() );
plumed_assert( ff[0].getNumberOfDerivatives()==2 );
dcross=0.0; unsigned iplus, iminus;
for(unsigned i=1;i<np[0]-1;++i){
iplus=(i+1)*stride[0]; iminus=(i-1)*stride[0];
for(unsigned j=1;j<np[1]-1;++j){
dcross(i,j) = ( ff[iplus+j+1].get() + ff[iminus+j-1].get() - ff[iplus+j-1].get() - ff[iminus+j+1].get() ) /
getCrossTermDenominator( i, j );
}
}
double d1, d2; Matrix<double> tc(4,4);
std::vector<double> y(4), dy1(4), dy2(4), d2y12(4);
unsigned pij=0; unsigned ipos;
for (unsigned i=0;i<np[0]-1;++i){
ipos=i*stride[0]; d1 = getPointSpacing( 0, i );
for (unsigned j=0; j<np[1]-1;++j){
d2 = getPointSpacing( 1, j );
y[0] = ff[ipos+j].get(); y[1] = ff[ipos+stride[0]+j].get(); y[2] = ff[ipos+stride[0]+j+1].get(); y[3] = ff[ipos+j+1].get();
dy1[0] = ff[ipos+j].getDerivative(0); dy1[1] = ff[ipos+stride[0]+j].getDerivative(0);
dy1[2] = ff[ipos+stride[0]+j+1].getDerivative(0); dy1[3] = ff[ipos+j+1].getDerivative(0);
dy2[0] = ff[ipos+j].getDerivative(1); dy2[1] = ff[ipos+stride[0]+j].getDerivative(1);
dy2[2] = ff[ipos+stride[0]+j+1].getDerivative(1); dy2[3] = ff[ipos+j+1].getDerivative(1);
d2y12[0] = dcross( i, j ); d2y12[1] = dcross( i+1, j ); d2y12[2] = dcross( i+1, j+1 ); d2y12[3] = dcross( i, j+1 );
IBicCoeff( y, dy1, dy2, d2y12, d1, d2, tc);
pij=( ipos+j )*16;
for(unsigned k=0; k<4; ++k){ for(unsigned n=0; n<4; ++n){ clist[pij++]=tc(k,n); } }
}
}
}
bool TextureBoostedSaturatedGradientDataTest(bool create, int width, int height, const Func1 & f)
{
bool result = true;
Data data(f.description);
TEST_LOG_SS(Info, (create ? "Create" : "Verify") << " test " << f.description << " [" << width << ", " << height << "].");
View src(width, height, View::Gray8, NULL, TEST_ALIGN(width));
View dx1(width, height, View::Gray8, NULL, TEST_ALIGN(width));
View dy1(width, height, View::Gray8, NULL, TEST_ALIGN(width));
View dx2(width, height, View::Gray8, NULL, TEST_ALIGN(width));
View dy2(width, height, View::Gray8, NULL, TEST_ALIGN(width));
const int saturation = 16, boost = 4;
if(create)
{
FillRandom(src);
TEST_SAVE(src);
f.Call(src, saturation, boost, dx1, dy1);
TEST_SAVE(dx1);
TEST_SAVE(dy1);
}
else
{
TEST_LOAD(src);
TEST_LOAD(dx1);
TEST_LOAD(dy1);
f.Call(src, saturation, boost, dx2, dy2);
TEST_SAVE(dx2);
TEST_SAVE(dy2);
result = result && Compare(dx1, dx2, 0, true, 32, 0, "dx");
result = result && Compare(dy1, dy2, 0, true, 32, 0, "dy");
}
return result;
}
bool TextureBoostedSaturatedGradientAutoTest(int width, int height, int saturation, int boost, const Func1 & f1, const Func1 & f2)
{
bool result = true;
TEST_LOG_SS(Info, "Test " << f1.description << " & " << f2.description << " [" << width << ", " << height << "] <" << saturation << ", " << boost << ">.");
View src(width, height, View::Gray8, NULL, TEST_ALIGN(width));
FillRandom(src);
View dx1(width, height, View::Gray8, NULL, TEST_ALIGN(width));
View dy1(width, height, View::Gray8, NULL, TEST_ALIGN(width));
View dx2(width, height, View::Gray8, NULL, TEST_ALIGN(width));
View dy2(width, height, View::Gray8, NULL, TEST_ALIGN(width));
TEST_EXECUTE_AT_LEAST_MIN_TIME(f1.Call(src, saturation, boost, dx1, dy1));
TEST_EXECUTE_AT_LEAST_MIN_TIME(f2.Call(src, saturation, boost, dx2, dy2));
result = result && Compare(dx1, dx2, 0, true, 32, 0, "dx");
result = result && Compare(dy1, dy2, 0, true, 32, 0, "dy");
return result;
}
