DXF definition of an AutoCAD viewport entity. More...

#include <vport.h>

Collaboration diagram for dxf_vport:

Data Fields
int	id_code
char *	viewport_name
double	x_min
double	y_min
double	x_max
double	y_max
double	x_center
double	y_center
double	x_snap_base
double	y_snap_base
double	x_snap_spacing
double	y_snap_spacing
double	x_grid_spacing
double	y_grid_spacing
double	x_direction
double	y_direction
double	z_direction
double	x_target
double	y_target
double	z_target
double	view_height
double	viewport_aspect_ratio
double	lens_length
double	front_plane_offset
double	back_plane_offset
double	snap_rotation_angle
double	view_twist_angle
int	status_field
int	id
int	standard_flag
int	view_mode
int	circle_zoom_percent
int	fast_zoom_setting
int	UCSICON_setting
int	snap_on
int	grid_on
int	snap_style
int	snap_isopair
char *	dictionary_owner_soft
char *	dictionary_owner_hard
struct DxfVPort *	next

Detailed Description

DXF definition of an AutoCAD viewport entity.

The VPORT table is unique in that it may contain several entries with the same name (indicating a multiple-viewport configuration).
The entries corresponding to the active viewport configuration all have the name *ACTIVE.
The first such entry describes the current viewport.

Version:: According to DXF R10.; According to DXF R11.; According to DXF R12.; According to DXF R13.; According to DXF R14.

Definition at line 63 of file vport.h.

Field Documentation

int dxf_vport::id_code

Identification number for the entity.
This is to be an unique (sequential) number in the DXF file.
Group code = 5.

Definition at line 67 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

char* dxf_vport::viewport_name

Group code = 2.

Definition at line 72 of file vport.h.

Referenced by dxf_vport_free(), dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::x_min

X value of the lower-left corner of viewport.
Group code = 10.

Definition at line 74 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::y_min

Y value of the lower-left corner of viewport.
Group code = 20.

Definition at line 77 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::x_max

X value of the upper-right corner.
Group code = 11.

Definition at line 80 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::y_max

Y value of the upper-right corner.
Group code = 21.

Definition at line 83 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::x_center

X value of the view center point, in World Coordinate System.
Group code = 12.

Definition at line 86 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::y_center

Y value of the view center point, in World Coordinate System.
Group code = 22.

Definition at line 90 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::x_snap_base

X value of the snap base point.
Group code = 13.

Definition at line 94 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::y_snap_base

Y value of the snap base point.
Group code = 23.

Definition at line 97 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::x_snap_spacing

X value of snap spacing X and Y.
Group code = 14.

Definition at line 100 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::y_snap_spacing

Y value of snap spacing X and Y.
Group code = 24.

Definition at line 103 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::x_grid_spacing

X value of grid spacing X and Y.
Group code = 15.

Definition at line 106 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::y_grid_spacing

Y value of grid spacing X and Y.
Group code = 25.

Definition at line 109 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::x_direction

X value of the view direction from target point.
Group code = 16.

Definition at line 112 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::y_direction

Y value of the view direction from target point.
Group code = 26.

Definition at line 115 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::z_direction

Z value of the view direction from target point.
Group code = 36.

Definition at line 118 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::x_target

X value of the view target point.
Group code = 17.

Definition at line 121 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::y_target

Y value of the view target point.
Group code = 27.

Definition at line 124 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::z_target

Z value of the view target point.
Group code = 37.

Definition at line 127 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::view_height

View height.
Group code = 40.

Definition at line 130 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::viewport_aspect_ratio

Viewport aspect ratio.
Group code = 41.

Definition at line 133 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::lens_length

Lens length.
Group code = 42.

Definition at line 136 of file vport.h.

Referenced by dxf_vport_init(), and dxf_vport_write().

double dxf_vport::front_plane_offset

Front clipping plane - offset from target point.
Group code = 43.

Definition at line 139 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::back_plane_offset

Back clipping plane - offset from target point.
Group code = 44.

Definition at line 142 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::snap_rotation_angle

Snap rotation angle.
Group code = 50.

Definition at line 145 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

double dxf_vport::view_twist_angle

View twist angle.
Group code = 51.

Definition at line 148 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

int dxf_vport::status_field

Status field (never saved in DXF).
Group code = 68.

Definition at line 151 of file vport.h.

Referenced by dxf_vport_init(), and dxf_vport_read().

int dxf_vport::id

ID (never saved in DXF).
Group code = 69.

Definition at line 154 of file vport.h.

Referenced by dxf_vport_init(), and dxf_vport_read().

int dxf_vport::standard_flag

Standard flag values (See "Common Group Codes for Symbol Table Entries.").
Bit coded:

If set, table entry is externally dependent on an Xref.
If this bit and bit 16 are both set, the externally dependent Xref has been successfully resolved.
If set, the table entry was referenced by at least one entity in the drawing the last time the drawing was edited.

This flag is for the benefit of AutoCAD commands; it can be ignored by most programs that read DXF files, and need not be set by programs that write DXF files.
Group code = 70.

Definition at line 157 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

int dxf_vport::view_mode

See VIEWMODE system variable in appendix A.
Group code = 71.

Definition at line 175 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

int dxf_vport::circle_zoom_percent

Circle zoom percent.
Group code = 72.

Definition at line 178 of file vport.h.

Referenced by dxf_vport_init(), dxf_vport_read(), and dxf_vport_write().

int dxf_vport::fast_zoom_setting

Fast zoom setting.
Group code = 73.