GdsParser::GdsWriter Class Reference

#include <GdsWriter.h>

Public Member Functions
	GdsWriter (const char *filename)
	constructor More...
	~GdsWriter ()
	destructor
char *	gds_adjust_string (const char *input, int *output_length)
high level interfaces
void	write_boundary (int layer, int datatype, std::vector< int > const &vx, std::vector< int > const &vy, bool has_last=true)
	write a boundary object More...
void	write_box (int layer, int datatype, int xl, int yl, int xh, int yh)
	write a box object More...
void	create_lib (const char *libname, double dbu_uu, double dbu_m)
	create GDSII library More...
low level interfaces
void	gds_make_next_item (struct gds_itemtype **ci)
void	gds_bindump (BYTE x)
void	gds_write_float (double x)
void	gds_swap4bytes (BYTE *four)
	swap bytes More...
void	gds_swap2bytes (BYTE *two)
	swap bytes More...
void	gds_write_header ()
	write HEADER
void	gds_write_bgnlib ()
	write BGNLIB
void	gds_write_bgnstr ()
	write BGNSTR
void	gds_write_endlib ()
	write ENDLIB
void	gds_write_endstr ()
	write ENDSTR
void	gds_write_libname (const char *name)
	write LIBNAME More...
void	gds_write_strname (const char *name)
	write STRNAME More...
void	gds_write_string (const char *s)
	write STRING More...
void	gds_write_sname (const char *s)
	write SNAME More...
void	gds_write_boundary ()
	write BOUNDARY
void	gds_write_box ()
	write BOX
void	gds_write_boxtype (short int dt)
	write BOXTYPE More...
void	gds_write_path ()
	write PATH
void	gds_write_sref ()
	write SREF
void	gds_write_aref ()
	write AREF
void	gds_write_text ()
	write TEXT
void	gds_write_endel ()
	write ENDEL
void	gds_write_layer (short int layer)
	write LAYER More...
void	gds_write_width (int width)
	write WIDTH More...
void	gds_write_datatype (short int dt)
	write DATATYPE More...
void	gds_write_texttype (short int dt)
	write TEXTTYPE More...
void	gds_write_generations (short int gens)
	write GENERATIONS More...
void	gds_write_pathtype (short int pt)
	write PATHTYPE More...
void	gds_write_presentation (int font, int vp, int hp)
	write PRESENTATION More...
void	gds_write_strans (BOOL reflect, BOOL abs_angle, BOOL abs_mag)
	write STRANS More...
void	gds_write_xy (const int *x, const int *y, int n, bool has_last=true)
	write XY More...
void	gds_write_colrow (int ncols, int nrows)
	write COLROW More...
void	gds_write_units (double dbu_uu, double dbu_m)
	write UNITS More...
void	gds_write_mag (double mag)
	write MAG More...
void	gds_write_angle (double angle)
	write ANGLE More...
void	gds_create_lib (const char *libname, double dbu_um)
	create library with name and unit More...
void	gds_create_text (const char *str, int x, int y, int layer, int size)
	wrapper to create text More...

Protected Member Functions
int	gds_write (const char *b, std::size_t n)
void	gds_flush ()
	flush all contents in the buffer

Protected Attributes
GdsStream *	m_os
	output stream
BYTE	gdsswap
	moved from global variables
short	gdsword
	move from global variables
std::size_t	m_capacity
	output buffer capacity
std::size_t	m_size
	output buffer size
char *	m_buffer
	output buffer

Detailed Description

write GDSII

Definition at line 90 of file GdsWriter.h.

Constructor & Destructor Documentation

GdsParser::GdsWriter::GdsWriter

(

const char *

filename

)

constructor

Parameters

filename

output file name

Member Function Documentation

void GdsParser::GdsWriter::create_lib	(	const char *	libname,
		double	dbu_uu,
		double	dbu_m
	)

create GDSII library

Parameters

libname	name of the library
dbu_uu	is user unit, 1nm per bit
dbu_m	is database unit in meter, usually 1e-9 this wrapper is different from gds_create_lib in terms of units

char* GdsParser::GdsWriter::gds_adjust_string	(	const char *	input,
		int *	output_length
	)

handle string with odd length; generate new string output and return its length

Parameters

input	a string
output_length	result length

Returns

a new string

void GdsParser::GdsWriter::gds_create_lib	(	const char *	libname,
		double	dbu_um
	)

create library with name and unit

Parameters

libname	name of library
dbu_um	database unit in microns, usually 1e-6

void GdsParser::GdsWriter::gds_create_text	(	const char *	str,
		int	x,
		int	y,
		int	layer,
		int	size
	)

wrapper to create text

Parameters

str	text
x	x position
y	y position
layer	layer
size	text size

void GdsParser::GdsWriter::gds_swap2bytes

(

BYTE *

two

)

swap bytes

Parameters

two	2-byte of data

void GdsParser::GdsWriter::gds_swap4bytes

(

BYTE *

four

)

swap bytes

Parameters

four	4-byte of data

int GdsParser::GdsWriter::gds_write ( const char *  b, std::size_t  n  )

protected

a buffered putting scheme to speedup writing

Returns

negative value if error by Yibo Lin

void GdsParser::GdsWriter::gds_write_angle

(

double

angle

)

write ANGLE

Parameters

angle

angle in degree

void GdsParser::GdsWriter::gds_write_boxtype

(

short int

dt

)

write BOXTYPE

Parameters

dt

data type

void GdsParser::GdsWriter::gds_write_colrow	(	int	ncols,
		int	nrows
	)

write COLROW

Parameters

ncols	number of columns
nrows	number of rows

void GdsParser::GdsWriter::gds_write_datatype

(

short int

dt

)

write DATATYPE

Parameters

dt

data type

void GdsParser::GdsWriter::gds_write_generations

(

short int

gens

)

write GENERATIONS

Parameters

gens	generations

void GdsParser::GdsWriter::gds_write_layer

(

short int

layer

)

write LAYER

Parameters

layer

layer

void GdsParser::GdsWriter::gds_write_libname

(

const char *

name

)

write LIBNAME

Parameters

name	name of library

void GdsParser::GdsWriter::gds_write_mag

(

double

mag

)

write MAG

Parameters

mag	magnification

void GdsParser::GdsWriter::gds_write_pathtype

(

short int

pt

)

write PATHTYPE

Parameters

pt

path type

void GdsParser::GdsWriter::gds_write_presentation	(	int	font,
		int	vp,
		int	hp
	)

write PRESENTATION

Parameters

font	font number 0, 1, 2, 3
vp	vertical presentation 0 = top 1 = middle 2 = bottom
hp	horizontal presentation 0 = left 1 = center 2 = right

void GdsParser::GdsWriter::gds_write_sname

(

const char *

s

)

write SNAME

Parameters

s

string

void GdsParser::GdsWriter::gds_write_strans	(	BOOL	reflect,
		BOOL	abs_angle,
		BOOL	abs_mag
	)

write STRANS

Parameters

reflect	reflect about X axis before rotation (normally false)
abs_angle	angles are absolute (normally false)
abs_mag	magnification (scale) is absolute (normally false)

void GdsParser::GdsWriter::gds_write_string

(

const char *

s

)

write STRING

Parameters

s

string

void GdsParser::GdsWriter::gds_write_strname

(

const char *

name

)

write STRNAME

Parameters

name

name

void GdsParser::GdsWriter::gds_write_texttype

(

short int

dt

)

write TEXTTYPE

Parameters

dt

text type

void GdsParser::GdsWriter::gds_write_units	(	double	dbu_uu,
		double	dbu_m
	)

write UNITS

Parameters

dbu_uu	database unit in user units, usually 0.001
dbu_m	database unit in meters, usually 1e-9

void GdsParser::GdsWriter::gds_write_width

(

int

width

)

write WIDTH

Parameters

width

width

void GdsParser::GdsWriter::gds_write_xy	(	const int *	x,
		const int *	y,
		int	n,
		bool	has_last = true
	)

write XY

Parameters

x	array of x coordinates
y	array of y coordinates
n	length of array
has_last	if true, it means the last point is the same as the first point; otherwise, we need to add one point to the end. Default value is true.

void GdsParser::GdsWriter::write_boundary	(	int	layer,
		int	datatype,
		std::vector< int > const &	vx,
		std::vector< int > const &	vy,
		bool	has_last = true
	)

write a boundary object

Parameters

layer	layer
datatype	data type
vx	array of x coordinates
vy	array of y coordinates
has_last	if true, it means the last point is the same as the first point; otherwise, we need to add one point to the end. Default value is true

void GdsParser::GdsWriter::write_box	(	int	layer,
		int	datatype,
		int	xl,
		int	yl,
		int	xh,
		int	yh
	)

write a box object

Parameters

layer	layer
datatype	data type
xl,yl,xh,yh	coordinates of the box

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

• /Users/yibolin/Documents/Projects/Limbo/limbo/parsers/gdsii/stream/GdsWriter.h