Glade Reference

---

net class

The net class is normally created in a cellView using the dbCreateNet() function. A net is not derived from a dbObj, so it cannot have properties. Nets have pins (which represent connections at this level of hierarchy with upper levels of hierarchy) and instPins (which represent connections with instances, i.e. lower levels of hierarchy). These provide a means for hierarchical connectivity from the pins on an instance of the cellView to the instPins on instances in the cellView.

 

net::name(const char *name)

Sets the name of the net.

 

char *name = net::name()

Gets the net name.

 

dbtype_t net::objType()

Gets the net object type as NET

 

char * net::objName()

Gets the net object name as "NET".

 

net::setCapacitance(float32_t val)

Sets the net capacitance.

 

float32_t net::capacitance()

Gets the net capacitance.

 

cellView * net::cellView()

Gets the cellView this net is contained in.

 

instPin * net::dbCreateInstPin(const char *instName, const char *pinName)

Creates an inst pin for this net with instName as the instance name and pinName as the name of the pin. Returns the instPin created.

 

instPin * net::dbCreateInstPin(inst * inst, const char *pinName)

Creates an inst pin for this net with inst as the instance and pinName as the name of the pin. Returns the instPin created.

 

bool net::dbDeleteInstPin(instPin * ip)

Deletes an inst pin ip of this net. Returns True if successful.

 

bool net::dbDeleteinstPin(const char *instname, const char *pinname)

Deletes an inst pin given by instname and pinname of this net. Returns True if successful.

 

bool net::dbDeleteinstPin(inst * inst, const char *pinname)

Deletes an inst pin given by inst and pinname of this net. Returns True if successful.

 

float64_t net::getHPWL(double &x, double &y)

Gets the half perimeter wirelength of this net.

 

net::setUse(db_NetUse use)

Sets the net's use. db_NetUse can be one of:

• DB_SIGNAL
• DB_ANALOG
• DB_CLOCK
• DB_GROUND
• DB_POWER
• DB_RESET
• DB_SCAN
• DB_TIEOFF
• DB_TIEHI
• DB_TIELO

 

db_NetUse net::use()

Gets the net's use.

 

const char * net::getUseStr()

Gets the net's use as a string.

 

net::setSource(db_NetSource src)

Sets the net's source type. db_NetSource can be one of:

• DB_DIST
• DB_NETLIST
• DB_TEST
• DB_TIMING
• DB_USER

 

db_NetSource net::source()

Gets the net's source type.

 

const char * net::getSourceStr()

Gets the net's source type as a string.

 

net::setPattern(db_NetPattern pat)

Sets the net's pattern type. db_NetPattern can be one of:

• DB_BALANCED
• DB_STEINER
• DB_TRUNK
• DB_WIREDLOGIC

 

db_NetPattern net::pattern()

Gets the net's pattern type.

 

const char * net::getPatternStr()

Gets the net's pattern type as a string.

 

net::setGlobal(bool flag)

Sets the net's global flag.

 

bool net::isGlobal()

Gets the net's global flag.

 

net::setSpecial(bool flag)

Sets the net's special flag.

 

bool net::isSpecial()

Gets the net special flag.

 

net::setNonDefRule(int16_t index)

Sets the net's nondefault rule index.

 

int16_t net::getNonDefRule()

Gets the net's nondefault rule index.

 

net::setPins(dbObjList<pin> *pins)

Set the net's pin list.

 

dbObjList <pin> * net::pins()

Gets the net's pins as a dbObjList.

 

[ pin * ] net::getPins()

Gets the net's pins as a python list.

 

net::addPin(pin *p)

Add a pin to this net.

 

bool net::deletePin(pin *p)

Delete a pin from this net. Retuens True if successful.

 

net::addShape(dbObj *shp)

Add a shape to the net's shape list.

 

bool net::deleteShape(dbObj *shp)

Delete a shape from the net's shape list. Retuens True if successful.

 

net::setShapes(dbObjList<shape> *shapes)

Sets the net's shape list.

 

dbObjList<shape> * net::getShapes()

Gets the net's shapes as a dbObjList.

 

[ shape * ] net::getShapes()

Gets the net's shapes as a python list.

 

int32_t net::getNumShapes()

Get the number of shapes associated with this net.

 

int32_t net::getNumInstPins()

Gets the number of inst pins for this net.

 

net::addInstPin(instPin *ip)

Add an inst pin for this net.

 

dbObjList<instPin> * net::getInstPins()

Get the net's inst pins as a dbObjectList.

 

[ instPin * ] net::getInstPins()

Get the net's inst pins as a python list.

 

dbObjList<signal> * net::getSignals()

Get the signals for this net as a dbObjList.

 

int16_t net::numBits()

Get the number of bits in this net. For example out<0:3> returns 4.

 

const char * net::baseName()

Get the net's base name. For example out<0:3> returns out.

 

net::addSubNet(uint32_t idx, subnet * node)

Add a subnet node with given index idx to this net.

 

net::deleteSubnet(uint32_t idx)

Delete a subnet with given index idx from this net.

 

int32_t net::getNumSubnets()

Get the number of subnets for this net.

 

subnet * net::createSubNet(const char *name, int32_t x, int32_t y)

Create a subnet with name name and coords x and y. Retuens the subnet created.

 

subnet * net::getSubNet(const char *name, int32_t &idx)

Get a subnet given its name name and return it and its index idx.

 

subnet * net::getSubNet(int32_t idx)

Get a subnet given its index idx.

 

 

Contents|Index

Copyright © Peardrop Design 2026.