Orientation of the image. 0x0112 ∙ 274

IG_ISIS_TAG_ORIENTATION describes the orientation of the image with respect to rows and columns.

Type:

IG_ISIS_TAG_TYPE_SHORT

Drivers:

PIXFPACK.

Values:

IG_ISIS_TAG_ORIENTATION can contain any one of the following values:

ISIS Value	TIFF Value	Defined Constant	Meaning
1	1	IG_ISIS_ORIENTATION_PORT	Portrait (0 degrees). The 0th row represents the visual top of the image and the 0th column represents the visual left side.
2	8	IG_ISIS_ORIENTATION_LAND	Landscape (90 degrees ccw). The 0th row represents the visual left side of the image and the 0th column represents the visual bottom.
3	3	IG_ISIS_ORIENTATION_180	Upside down portrait (180 degrees ccw). The 0th row represents the visual bottom of the image and the 0th column represents the visual right side.
4	6	IG_ISIS_ORIENTATION_270	Upside down landscape (270 degrees ccw). The 0th row represents the visual right side of the image, and the 0th column represents the visual top.
5	2	IG_ISIS_ORIENTATION_PORTM	Portrait mirrored. The 0th row represents the visual top of the image, and the 0th column represents the visual right side.
6	5	IG_ISIS_ORIENTATION_LANDM	Landscape mirrored. The 0th row represents the visual left side of the image, and the 0th column represents the visual top.
7	4	IG_ISIS_ORIENTATION_180M	Upside down portrait mirrored. The 0th row represents the visual bottom of the image, and the 0th column represents the visual left side. This is the orientation in which Windows BMP files are stored.
8	7	IG_ISIS_ORIENTATION_270M	Upside down landscape mirrored. The 0th row represents the visual right side of the image, and the 0th column represents the visual bottom.

See Also

IG_ISIS_TAG_SCANORIENTATION

IG_ISIS_TAG_DATAORIENTATION