diff options
| author |  Rick Walsh <rickmwalsh@gmail.com> | 2016-09-13 13:52:04 +1000 |
|---|---|---|
| committer |  Dirk Hohndel <dirk@hohndel.org> | 2016-09-17 13:42:08 -0700 |
| commit | ddc7f3dc98c8ed2226fc57b8876f2d4d43a14294 (patch) | |
| tree | b144495c64f834aa0de3f0b0355ca70a366394cf /profile-widget/diveprofileitem.cpp | |
| parent | cd99bbe727e31222a0cfb127f0b5acc7464b9800 (diff) | |
| download | subsurface-ddc7f3dc98c8ed2226fc57b8876f2d4d43a14294.tar.gz | |
Adjust heat map colour scale
Make the heat map use a colour scale similar to that by Kevin Watt, as used in
Simon Mitchell's presentation, Decompression Controversies
https://www.youtube.com/watch?v=UY61E49lyos&t=2090&authuser=0
Undersaturated: cyan -> blue ->purple -> black
Supersaturated up to M value: black -> yellow -> red
Exceeding M value: red -> white
Signed-off-by: Rick Walsh <rickmwalsh@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Diffstat (limited to 'profile-widget/diveprofileitem.cpp')
| -rw-r--r-- | profile-widget/diveprofileitem.cpp | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/profile-widget/diveprofileitem.cpp b/profile-widget/diveprofileitem.cpp index ce811f930..1543b3617 100644 --- a/profile-widget/diveprofileitem.cpp +++ b/profile-widget/diveprofileitem.cpp @@ -400,13 +400,18 @@ void DivePercentageItem::paint(QPainter *painter, const QStyleOptionGraphicsItem for (int i = 0, modelDataCount = dataModel->rowCount(); i < modelDataCount; i++) { if (i < poly.count()) { double value = dataModel->index(i, vDataColumn).data().toDouble(); - if (value < 50.0) { - value *= 255.0 / 50.0; - color.setRgb(rint(value), 255 - rint(value),0); - } else { - value = (value - 50.0) * 255.0 / 50.0; - color.setRgb(255 - rint(value), 0 , rint(value)); - } + if (value < 0.8 * AMB_PERCENTAGE * N2_IN_AIR / 1000.0) // grade from cyan to blue to purple + color.setHsvF(0.5 + 0.25 * value / (0.8 * AMB_PERCENTAGE * N2_IN_AIR / 1000.0), 1.0, 1.0); + else if (value < AMB_PERCENTAGE * N2_IN_AIR / 1000.0) // grade from magenta to black + color.setHsvF(0.75, 1.0, (AMB_PERCENTAGE * N2_IN_AIR / 1000.0 - value) / (0.2 * AMB_PERCENTAGE * N2_IN_AIR / 1000.0)); + else if (value < 55) // grade from black to green + color.setHsvF(0.333, 1.0, (value - AMB_PERCENTAGE * N2_IN_AIR / 1000.0) / (55.0 - AMB_PERCENTAGE * N2_IN_AIR / 1000.0)); + else if (value < 100) // grade from green to yellow to red + color.setHsvF(0.333 * (100.0 - value) / 45.0, 1.0, 1.0); + else if (value < 120) // M value exceeded - grade from red to white + color.setHsvF(0.0, 1 - (value - 100.0) / 20.0, 1.0); + else // white + color.setHsvF(0.0, 0.0, 1.0); mypen.setBrush(QBrush(color)); painter->setPen(mypen); |