xornsch_net Struct Reference

Schematic net segment, bus segment, or pin. More...

#include <xornstorage.h>

Public Attributes
struct xorn_double2d	pos
	Coordinate of first end in mils. More...
struct xorn_double2d	size
	Coordinate of second end minus coordinate of first end in mils. More...
int	color
	Color index. More...
bool	is_bus
	Does the object describe a bus or bus pin? More...
bool	is_pin
	Does the object describe a pin? More...
bool	is_inverted
	Invert the pin when writing to a gEDA symbol file. More...

Detailed Description

Schematic net segment, bus segment, or pin.

• Nets and buses can only appear in schematic files. Pins can only appear in symbol files.
• You cannot have a zero length net or bus (the gEDA tools will throw them away). Zero length pins are allowed.

If is_pin is false, valid in schematic files only. if is_pin is true, valid in symbol files only.

Unimplemented fields:

• ripperdir: Direction of bus rippers
  • The ripperdir field for an brand new bus is 0.
  • The ripperdir field takes on a value of 1 or -1 when a net is connected to the bus for the first time. This value indicates the direction of the ripper symbol. The ripper direction is set to the same value for the entire life of the bus object.
  • Is 0 if no nets have been connected to the bus segment.

Definition at line 217 of file xornstorage.h.

Member Data Documentation

xornsch_net::color

Color index.

See also

gEDA colors

Definition at line 220 of file xornstorage.h.

xornsch_net::is_bus

Does the object describe a bus or bus pin?

If false, this object is a net segment or normal pin. If true, it is a bus segment or bus pin.

Bus pins are not used by gEDA.

Definition at line 221 of file xornstorage.h.

xornsch_net::is_inverted

Invert the pin when writing to a gEDA symbol file.

In Xorn, the end point indicated by pos is the active connection port of a pin. Only this end point can have other pins or nets connected to it.

In a gEDA symbol files, however, there is a separate field called whichend that specifies which end point of the pin is the active connection port. If whichend is 0, the first end point is active; if it is 1, the other end is active.

When a pin with whichend = 1 is read from a symbol file, the end points are swapped, and is_inverted is set to true. This field is then completely ignored unless the file is written to a gEDA symbol file again, in which case the points are written swapped and whichend is set to 1.

Note

Unless you are writing a gEDA import/export filter, you can safely ignore this field.

Definition at line 223 of file xornstorage.h.

xornsch_net::is_pin

Does the object describe a pin?

If false, this object is a net segment or bus segment. If true, it is a regular pin or bus pin.

Bus pins are not used by gEDA.

Definition at line 222 of file xornstorage.h.

xornsch_net::pos

Coordinate of first end in mils.

Definition at line 218 of file xornstorage.h.

xornsch_net::size

Coordinate of second end minus coordinate of first end in mils.

Definition at line 219 of file xornstorage.h.

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

• include/xornstorage.h
• doc/geda/data.dox