InsertNodeSplitCommand Class Reference

Records "place a node ON a conduit": the conduit is split at the picked point and a node of the requested SWMM type is inserted there (ADDNODE_SPLIT_REDESIGN_PLAN_2026-09-10.md step 2). More...

#include <mapundostack.h>

Inheritance diagram for InsertNodeSplitCommand:

Collaboration diagram for InsertNodeSplitCommand:

Public Member Functions
	InsertNodeSplitCommand (SWMMModelLayer *layer, QString linkName, double t, QString nodeName, QString newLinkName, int nodeType, MapCanvas *canvas, QUndoCommand *parent=nullptr)
void	undo () override
void	redo () override
int	id () const override
QStringList	warnings () const
bool	retyped () const
Public Member Functions inherited from MapCommand
	MapCommand (const QString &text, MapCanvas *canvas, QUndoCommand *parent=nullptr)
	Constructs a map command with a human-readable text.
MapCanvas *	canvas () const

Additional Inherited Members
Protected Attributes inherited from MapCommand
MapCanvas *	m_canvas

Detailed Description

Records "place a node ON a conduit": the conduit is split at the picked point and a node of the requested SWMM type is inserted there (ADDNODE_SPLIT_REDESIGN_PLAN_2026-09-10.md step 2).

The engine's swmm_conduit_split always creates a JUNCTION, so for STORAGE / DIVIDER redo() splits, then converts the new junction with applyNodeConvert and applies the type's creation defaults (the same ObjectDefaultsApplier pass AddNodeCommand runs). A plain junction takes the split as-is — the engine's interpolated invert and conduit-derived depth are better than the defaults. Undo runs the inverse in reverse: convert back to a junction (the fuse inverse only accepts junctions), then re-fuse the conduit pair. OUTFALL is never accepted (an outfall must be terminal).

If the conversion is refused the node stays a junction and the engine's message is kept in warnings(); the split itself stands.

Constructor & Destructor Documentation

InsertNodeSplitCommand()

InsertNodeSplitCommand::InsertNodeSplitCommand	(	SWMMModelLayer *	layer,
		QString	linkName,
		double	t,
		QString	nodeName,
		QString	newLinkName,
		int	nodeType,
		MapCanvas *	canvas,
		QUndoCommand *	parent = nullptr
	)

Member Function Documentation

id()

int InsertNodeSplitCommand::id ( ) const

inlineoverride

redo()

void InsertNodeSplitCommand::redo ( )

override

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retyped()

bool InsertNodeSplitCommand::retyped ( ) const

inline

True when the node was actually retyped to nodeType (always true for a junction, which needs no conversion).

undo()

void InsertNodeSplitCommand::undo ( )

override

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warnings()

QStringList InsertNodeSplitCommand::warnings ( ) const

inline

Engine warnings / the conversion error from the last redo() (e.g. a divider inserted mid-conduit has only two links until a third is drawn).

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The documentation for this class was generated from the following files:

• /home/runner/work/openswmm.gui/openswmm.gui/include/map/mapundostack.h
• /home/runner/work/openswmm.gui/openswmm.gui/src/map/mapundostack.cpp