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Updates sqp color scale thresholds (1)...
Updates sqp color scale thresholds (1) Creates method to update range each time data of its colormap change
Alexandre Leroux - - Load All Authors

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r1019:1474b0522998
r1019:1474b0522998
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SqpColorScale.cpp
60 lines | 1.8 KiB | text/x-c | CppLexer
/ gui / src / Visualization / SqpColorScale.cpp
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Alexandre Leroux
Creates color scale for Sciqlop...
 r1008 #include "Visualization/SqpColorScale.h"
Alexandre Leroux
Creates method that computes thresholds of a SqpColorScale
 r1018 #include <Data/DataSeriesUtils.h>
#include <Visualization/QCPColorMapIterator.h>
Q_LOGGING_CATEGORY(LOG_SqpColorScale, "SqpColorScale")
Alexandre Leroux
Creates color scale for Sciqlop...
 r1008 namespace {
const auto DEFAULT_GRADIENT_PRESET = QCPColorGradient::gpJet;
const auto DEFAULT_RANGE = QCPRange{1.0e3, 1.7e7};
} // namespace
Alexandre Leroux
Creates method that computes thresholds of a SqpColorScale
 r1018 std::pair<double, double> SqpColorScale::computeThresholds(const SqpColorScale &scale)
{
auto qcpScale = scale.m_Scale;
auto colorMaps = qcpScale->colorMaps();
if (colorMaps.size() != 1) {
return {std::numeric_limits<double>::quiet_NaN(), std::numeric_limits<double>::quiet_NaN()};
}
// Computes thresholds
auto isLogarithmicScale = qcpScale->dataScaleType() == QCPAxis::stLogarithmic;
auto colorMapData = colorMaps.first()->data();
QCPColorMapIterator begin{colorMapData, true};
QCPColorMapIterator end{colorMapData, false};
return DataSeriesUtils::thresholds(begin, end, isLogarithmicScale);
}
Alexandre Leroux
Creates color scale for Sciqlop...
 r1008 SqpColorScale::SqpColorScale(QCustomPlot &plot)
: m_Scale{new QCPColorScale{&plot}},
Alexandre Leroux
Updates sqp color scale thresholds (1)...
 r1019 m_AutomaticThreshold{true},
Alexandre Leroux
Creates color scale for Sciqlop...
 r1008 m_GradientPreset{DEFAULT_GRADIENT_PRESET}
{
m_Scale->setGradient(m_GradientPreset);
m_Scale->setDataRange(DEFAULT_RANGE);
}
Alexandre Leroux
Updates sqp color scale thresholds (1)...
 r1019
void SqpColorScale::updateDataRange() noexcept
{
// Updates data range only if mode is automatic
if (!m_AutomaticThreshold) {
return;
}
double minThreshold, maxThreshold;
std::tie(minThreshold, maxThreshold) = computeThresholds(*this);
if (std::isnan(minThreshold) || std::isnan(maxThreshold)) {
qCCritical(LOG_SqpColorScale())
<< "Can't update data range of color scale: thresholds computed are invalid";
return;
}
// Updates thresholds
m_Scale->setDataRange({minThreshold, maxThreshold});
}