Filip Leonarski
808691251e
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This is an UNSTABLE release. * jfjoch_viewer: Auto load is better handling change of states * jfjoch_viewer: Fix DBus registration * jfjoch_viewer: Handle charts better with vertical lines on hover and status bar update * jfjoch_viewer: Calculate ROI in a more efficient way Reviewed-on: #6 Co-authored-by: Filip Leonarski <filip.leonarski@psi.ch> Co-committed-by: Filip Leonarski <filip.leonarski@psi.ch>
88 lines
2.7 KiB
C++
88 lines
2.7 KiB
C++
// SPDX-FileCopyrightText: 2025 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
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// SPDX-License-Identifier: GPL-3.0-only
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#include "JFJochOneOverResSqChartView.h"
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#include <QMenu>
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#include <QClipboard>
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#include <QApplication>
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#include <QCategoryAxis>
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JFJochOneOverResSqChartView::JFJochOneOverResSqChartView (QWidget *parent)
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: JFJochSimpleChartView(parent) {}
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void JFJochOneOverResSqChartView::UpdateData(const std::vector<float> &in_x, const std::vector<float> &in_y,
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QString legend_x, QString legend_y) {
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x = in_x;
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y = in_y;
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// Remove hover line if any
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if (m_hoverLine) {
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chart()->scene()->removeItem(m_hoverLine);
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delete m_hoverLine;
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m_hoverLine = nullptr;
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}
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m_series = nullptr;
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chart()->removeAllSeries();
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// Remove all axes to avoid duplicates
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for (auto ax : chart()->axes()) chart()->removeAxis(ax);
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if (x.empty() || x.size() != y.size()) return;
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float max_y = *std::max_element(y.begin(), y.end());
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if (max_y <= 0) return;
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auto* series = new QLineSeries(this);
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for (size_t i = 0; i < x.size(); ++i) series->append(x[i], y[i]);
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chart()->addSeries(series);
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m_series = series;
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auto* axY = new QValueAxis();
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axY->setTitleText(legend_y);
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axY->setRange(0, 1.05 * max_y);
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chart()->addAxis(axY, Qt::AlignLeft);
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series->attachAxis(axY);
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// Build X range
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const float xmin = x[0], xmax = x[x.size() - 1];
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// Hidden X value axis on top for grid/range
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auto *axXTop = new QValueAxis();
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axXTop->setRange(xmin, xmax);
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axXTop->setTickCount(5);
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axXTop->setLabelsVisible(false);
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chart()->addAxis(axXTop, Qt::AlignTop);
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series->attachAxis(axXTop);
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// Visible category axis at bottom for 1/x labels
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auto *axXcat = new QCategoryAxis();
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axXcat->setLabelsPosition(QCategoryAxis::AxisLabelsPositionOnValue);
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axXcat->setGridLineVisible(false);
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axXcat->setMinorGridLineVisible(false);
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axXcat->setTitleText(legend_x);
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const int tickCount = axXTop->tickCount();
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const double step = (tickCount > 1) ? (xmax - xmin) / (tickCount - 1) : 0.0;
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for (int i = 0; i < tickCount; ++i) {
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const double xv = xmin + i * step;
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const QString lab = (std::abs(xv) < 1e-12)
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? QStringLiteral("∞")
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: QString::number(1.0 / sqrtf(xv), 'f', 2);
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axXcat->append(lab, xv);
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}
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chart()->addAxis(axXcat, Qt::AlignBottom);
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series->attachAxis(axXcat);
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}
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QString JFJochOneOverResSqChartView::getText(size_t idx) {
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if (idx < x.size() && x[idx] > 0)
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return QString("d = %1 Å, y = %2")
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.arg(1 / sqrt(x[idx]), 0, 'g', 4)
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.arg(y[idx], 0, 'g', 6);
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return QString();
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}
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