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Fem: Handle single value field - fixes #14022

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This commit is contained in:
marioalexis
2024-07-17 14:20:27 -03:00
committed by Chris Hennes
parent 03911cddd1
commit daf6e6d0d7
2 changed files with 20 additions and 5 deletions
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23
src/Mod/Fem/Gui/ViewProviderFemPostObject.cpp
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@@ -614,12 +614,27 @@ void ViewProviderFemPostObject::WritePointData(vtkPoints* points,
}
}
void ViewProviderFemPostObject::setRangeOfColorBar(double min, double max)
void ViewProviderFemPostObject::setRangeOfColorBar(float min, float max)
{
try {
// setRange expects max value greater than min value.
// A typical case is max equal to min, so machine epsilon
// is used to overwrite and differentiate both values
if (min >= max) {
min = max - 10 * std::numeric_limits<double>::epsilon();
max = max + 10 * std::numeric_limits<double>::epsilon();
static constexpr float eps = std::numeric_limits<float>::epsilon();
if (max > 0) {
min = max * (1 - eps);
max = max * (1 + eps);
}
else if (max < 0) {
min = max * (1 + eps);
max = max * (1 - eps);
}
else {
static constexpr float minF = std::numeric_limits<float>::min();
min = -1 * minF;
max = minF;
}
}
m_colorBar->setRange(min, max);
}
@@ -669,7 +684,7 @@ void ViewProviderFemPostObject::WriteColorData(bool ResetColorBarRange)
if (ResetColorBarRange) {
double range[2];
data->GetRange(range, component);
setRangeOfColorBar(range[0], range[1]);
setRangeOfColorBar(static_cast<float>(range[0]), static_cast<float>(range[1]));
}
vtkIdType numPts = pd->GetNumberOfPoints();