Entities

entities/raster

#include "dxfio/entities/raster.hpp"

In DxfIO::Entities

struct Pixel

A vertex of the clipping boundary of an image or a wipeout.

Field	Type	Meaning
`Position`	`Vector`	The vertex, in pixels of the image. Groups 14, 24.

What an IMAGE and a WIPEOUT share: where the picture lies, how it is shown and how it is clipped.

Field	Type and default	Meaning
`Version`	`int`	The version of the image's layout. Group 90.
`Origin`	`Vector`	The insertion point, the outer corner of the bottom-left pixel, in world coordinates. Groups 10, 20, 30.
`Across`	`Vector`	One pixel's step along the bottom edge of the image, in world coordinates. Groups 11, 21, 31.
`Down`	`Vector`	One pixel's step up the left edge of the image, from the insertion point, in world coordinates. Groups 12, 22, 32.
`Size`	`Vector`	The width and height of the image, in pixels. Groups 13, 23.
`Definition`	`Handle`	The IMAGEDEF that names the picture's file. Group 340.
`Flags`	`int{Displayed}`	1 shown, 2 shown when not aligned with the screen, 4 clipped, 8 transparent; 7 for a new one, as AutoCAD writes it. Group 70.
`Clipped`	`int`	Whether the clipping boundary is on. Group 280.
`Brightness`	`int{Halfway}`	The brightness, 0 to 100. Group 281.
`Contrast`	`int{Halfway}`	The contrast, 0 to 100. Group 282.
`Fade`	`int`	The fade, 0 to 100. Group 283.
`Outside`	`bool`	Whether the clip is inverted, hiding what lies inside the boundary. Group 290, from R2010.
`Reactor`	`Handle`	The IMAGEDEF_REACTOR that ties the image to its definition. Group 360.
`Kind`	`int{1}`	The shape of the clipping boundary: 1 a rectangle, as for a new one, 2 a polygon. Group 71.
`Corners`	`std::vector<Pixel>`	The vertices of the clipping boundary, two opposite corners for a rectangle; group 91 counts them.

An IMAGE: a raster picture placed in the drawing, its file named by an IMAGEDEF.

Field	Type	Meaning
`Record`	`Entities::Record`	The layer, linetype, color and the rest every entity carries.
`Picture`	`std::string`	The proxy graphics, for programs that cannot draw the entity. Group 92, or 160 from R2010, then 310.
`Raster`	`Boxed<Entities::Raster>`	Where the picture lies, how it is shown and how it is clipped, from the AcDbRasterImage subclass.

A WIPEOUT: an area that hides what is drawn under it, laid out as an image.

Field	Type	Meaning
`Record`	`Entities::Record`	The layer, linetype, color and the rest every entity carries.
`Picture`	`std::string`	The proxy graphics, for programs that cannot draw the entity. Group 92, or 160 from R2010, then 310.
`Raster`	`Boxed<Entities::Raster>`	Where the area lies and the boundary that shapes it, from the AcDbWipeout subclass.

`Displayed`	`int = 7`	The display flags of a new image or wipeout, as AutoCAD writes them: shown, shown when not aligned with the screen, and clipped.
`Halfway`	`int = 50`	The brightness and the contrast of a new image or wipeout: 50, halfway, as AutoCAD writes them.