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Handle coded thresholds

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This commit is contained in:
Dan Paulat 2022-04-10 11:21:15 -05:00
parent cc36922e99
commit cf3c780abf
1 changed files with 66 additions and 43 deletions
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109
scwx-qt/source/scwx/qt/view/level3_product_view.cpp
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@ -174,52 +174,75 @@ void Level3ProductView::UpdateColorTable()
lut.resize(numberOfLevels - rangeMin);
lut.shrink_to_fit();
std::for_each(std::execution::par_unseq,
dataRange.begin(),
dataRange.end(),
[&](uint16_t i)
{
if (i == RANGE_FOLDED && threshold > RANGE_FOLDED)
{
lut[i - *dataRange.begin()] = p->colorTable_->rf_color();
}
else
{
float f;
std::for_each(
std::execution::par_unseq,
dataRange.begin(),
dataRange.end(),
[&](uint16_t i)
{
const size_t lutIndex = i - *dataRange.begin();
float f;
// Different products use different scale/offset
// formulas
if (numberOfLevels > 16)
{
switch (descriptionBlock->product_code())
{
case 159:
case 161:
case 163:
case 167:
case 168:
case 170:
case 172:
case 173:
case 174:
case 175:
case 176:
f = (i - offset) / scale;
break;
// Different products use different scale/offset formulas
if (numberOfLevels > 16)
{
if (i == RANGE_FOLDED && threshold > RANGE_FOLDED)
{
lut[lutIndex] = p->colorTable_->rf_color();
}
else
{
switch (descriptionBlock->product_code())
{
case 159:
case 161:
case 163:
case 167:
case 168:
case 170:
case 172:
case 173:
case 174:
case 175:
case 176:
f = (i - offset) / scale;
break;
default:
f = i * scale + offset;
break;
}
}
else
{
f = descriptionBlock->data_level_threshold(i);
}
default:
f = i * scale + offset;
break;
}
lut[i - *dataRange.begin()] = p->colorTable_->Color(f);
}
});
lut[lutIndex] = p->colorTable_->Color(f);
}
}
else
{
uint16_t th = descriptionBlock->data_level_threshold(i);
if ((th & 0x8000u) == 0)
{
// If bit 0 is zero, then the LSB is numeric
f = static_cast<float>(th);
lut[lutIndex] = p->colorTable_->Color(f);
}
else
{
// If bit 0 is one, then the LSB is coded
uint16_t lsb = th & 0x00ffu;
switch (lsb)
{
case 3: // RF
lut[lutIndex] = p->colorTable_->rf_color();
break;
default: // Ignore other values
lut[lutIndex] = boost::gil::rgba8_pixel_t {0, 0, 0, 0};
break;
}
}
}
});
p->colorTableMin_ = rangeMin;
p->colorTableMax_ = rangeMax;