Tables

tables/vport

#include "dxfio/tables/vport.hpp"

In DxfIO::Tables

struct VportVPORT

A VPORT table record: a tiled viewport of model space. The tiled viewports on screen together share the name "*Active".

Field	Type and default	Meaning
`Record`	`Tables::Record`	The name, flags and handles every table record carries.
`Lower`	`Vector`	The lower left corner on screen, from 0 to 1 across and up. Groups 10, 20.
`Upper`	`Vector{.X = 1, .Y = 1, .Z = 0}`	The upper right corner on screen, from 0 to 1 across and up. Groups 11, 21.
`Center`	`Vector`	The center of the view, in display coordinates. Groups 12, 22.
`Base`	`Vector`	The snap base point, in display coordinates. Groups 13, 23.
`Snap`	`Vector{.X = Snapunit, .Y = Snapunit, .Z = 0}`	The snap spacing along X and Y. Groups 14, 24.
`Grid`	`Vector{.X = Gridunit, .Y = Gridunit, .Z = 0}`	The grid spacing along X and Y. Groups 15, 25.
`Direction`	`Vector{.X = 0, .Y = 0, .Z = 1}`	The direction the view looks from, toward the target, in world coordinates. Groups 16, 26, 36.
`Target`	`Vector`	The point the view looks at, in world coordinates. Groups 17, 27, 37.
`Height`	`double{1}`	How tall the view is, in display coordinates. Group 40.
`Aspect`	`double{1}`	The width of the viewport over its height. Group 41.
`Focal`	`double{Lens}`	The lens length, in millimeters, of a perspective view. Group 42.
`Front`	`double`	The front clipping plane, as an offset from the target. Group 43.
`Back`	`double`	The back clipping plane, as an offset from the target. Group 44.
`Rotation`	`double`	The snap angle, in degrees. Group 50.
`Twist`	`double`	The rotation of the view about its direction, in degrees. Group 51.
`Mode`	`int`	Bits, as $VIEWMODE: 1 perspective, 2 front clipping, 4 back clipping, 8 UCS follow, 16 front clip not at the eye. Group 71.
`Zoom`	`int{Viewres}`	The circle zoom percent, as $VIEWRES: how smooth arcs and circles are drawn. Group 72.
`Fast`	`bool{true}`	Whether fast zoom is on. Group 73.
`Icon`	`int{3}`	The UCS icon, as $UCSICON: 1 shown, 2 at the origin. Group 74.
`Snapped`	`bool`	Whether snap is on. Group 75.
`Gridded`	`bool{true}`	Whether the grid is shown. Group 76.
`Isometric`	`bool`	Whether snap is isometric rather than square. Group 77.
`Isoplane`	`int`	The isometric plane: 0 left, 1 top, 2 right. Group 78.
`Render`	`int`	How the view is shaded: 0 2D optimized, 1 wireframe, 2 hidden line, 3 flat, 4 Gouraud, 5 and 6 those two with wireframe. Group 281, from R2000.
`Ucsvp`	`bool{true}`	Whether the viewport keeps a UCS of its own, made current when the viewport is. Group 65, from R2000.
`Axes`	`Tables::Axes`	The UCS of the viewport; from R2000.
`Style`	`Handle`	The visual style. Group 348, from R2007.
`Display`	`int{3}`	How the grid is shown, as $GRIDDISPLAY bits. Group 60, from R2007.
`Major`	`int{Gridmajor}`	The grid lines between major ones, as $GRIDMAJOR. Group 61, from R2007.
`Lit`	`bool{true}`	Whether the default lighting is on. Group 292, from R2007.
`Lighting`	`int{1}`	The default lighting: 0 one distant light, 1 two. Group 282, from R2007.
`Brightness`	`double`	How bright the viewport's lighting is. Group 141, from R2007.
`Contrast`	`double`	How much the viewport's lighting contrasts. Group 142, from R2007.
`Ambient`	`int{Ambience}`	The AutoCAD Color Index of the ambient light. Group 63, from R2007.
`Rgb`	`std::optional<int>`	The ambient light as a true color 0xRRGGBB, when it has one. Group 421, from R2007.
`Background`	`Handle`	The background object. Group 332, from R2007.
`Shadow`	`Handle`	The shade plot object. Group 333, from R2007.

Constants

`Snapunit`	`double = 10`	The snap spacing of a new viewport, as $SNAPUNIT.
`Gridunit`	`double = 10`	The grid spacing of a new viewport, as $GRIDUNIT.
`Viewres`	`int = 1000`	The circle zoom percent of a new viewport, as $VIEWRES.
`Gridmajor`	`int = 5`	The grid lines between major ones in a new viewport.
`Ambience`	`int = 250`	The color of a new viewport's ambient light: color index 250, a dark gray.