transectchartview.h File Reference

Slice BQ Phase 6.7.4 — interactive cross-section preview chart. More...

#include <QChartView>
#include <QPointer>
#include <QPointF>

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Classes
class	openswmmvis::ui::TransectChartView

Namespaces
namespace	openswmmvis
namespace	openswmmvis::transect
namespace	openswmmvis::ui

Detailed Description

Slice BQ Phase 6.7.4 — interactive cross-section preview chart.

Author

Caleb Buahin caleb.nosp@m..bua.nosp@m.hin@g.nosp@m.mail.nosp@m..com

Date

2026

License\n GPL-3.0-or-later

Subclasses QChartView (not InteractiveChartView — the existing modes Select/Pan/ZoomIn/ZoomOut don't compose with an EditPoints handle drag, and stacking two competing mouse-event regimes is more friction than value here). Implements the legacy Dprevplot.pas series set plus modern additions:

• QAreaSeries m_groundFill — semi-transparent fill below the bank line
• QLineSeries m_leftOverbankLine — from leftmost station to xLeftBank
• QLineSeries m_rightOverbankLine — from xRightBank to rightmost station
• QLineSeries m_channelLine — slice between xLeftBank and xRightBank
• QScatterSeries m_handles — one marker per station; the drag layer
• QLineSeries dotted overlays at xLeftBank / xRightBank (bank markers)

Always-on: mouse-wheel zoom about cursor; middle-button drag = pan.

Toolbar / programmatic toggles:

• Pan mode — left-button drag pans
• EditPoints mode — left-button hit-test on m_handles drags a station (monotonicity clamped via TransectProvider::setPointLive; Shift = Y-only; Ctrl = X-only)
• Zoom-to-extent — fits both axes to the provider's bounding box +10%
• Reset zoom — calls QChart::zoomReset

Right-click emits contextMenuRequestedAt(globalPos) so the parent dialog can build a menu (Chart properties… / Zoom to extent / Reset zoom / Copy data… / Export PNG…).