ELECTRONIC PUBLICATIONS STANDARD

More documents

Recommendations

Info

GAMA ELECTRONIC PUBLICATIONS STANDARD − Special Characters • Tagging to support the cross-referencing of text and graphics • Consistent table creation methods (avoiding combinations of spaces, tabs, indents, computer controlled, etc.) 3.3 Electronic Graphics File Formats This subsection specifies the requirements that apply to all electronic graphic data. Electronic data conforming to the ATA Specification 2100 is in compliance with this subsection of this specification. Note: For raster graphics, determination of appropriate resolutions should be made from a VGA screen, as that is the lowest common denominator. The following are guidelines in determining appropriate resolutions: • Text is legible at any normal working magnification • Lines are not jagged at any normal working magnification • Lines and/or text do not overlap (appear muddy). 3.3.1 Raster Text Pages A. Minimum Requirements Electronic raster text pages are required to be in a digital format that is Class* 1 CCITT Group 4 TIFF scanned at 300 dots per inch B. Recommended Requirements Electronic raster text pages are recommended to be scanned at the Class* level appropriate to adhere to the guidelines as identified in Section 3.3 of this Specification: • Class* 1: CCITT Group 4 TIFF scanned at 300 dots per inch • Class* 2: CCITT Group 4 TIFF scanned at 400 dots per inch • Class* 3: CCITT Group 4 TIFF scanned at 600 dots per inch • Class* 4: CCITT Group 4 TIFF scanned at 1200 dots per inch. *Classes are for reference to ATA Specification 2100 graphic section but are not indicative of compliance with the class attributes defined there. 3.3.2 Raster Graphics A. Minimum Requirements Electronic raster graphics files are required to be in a digital format that is Class * 1 CCITT Group 4 TIFF scanned at 300 dots per inch B. Recommended Requirements Complex graphics (multiple individual illustrations on a single 8.5 x 11 page) should be separated into individual illustrations (one illustration per file) when: • Upon initial display on a VGA screen, the individual illustrations are not distinguishable • Separation of the illustrations would enhance the usefulness of the information. 10 MARCH 1999
GAMA ELECTRONIC PUBLICATIONS STANDARD Note: The separated illustrations should be individually captioned for use in Tables of Content. Recommended raster file format exchange options are as follows: Monochrome electronic raster graphics files are recommended to be scanned at the Class* level appropriate to adhere to the guidelines as identified in Section 3.3 of this Specification: • Class* 1: CCITT Group 4 TIFF scanned at 300 dots per inch • Class* 2: CCITT Group 4 TIFF scanned at 400 dots per inch • Class* 3: CCITT Group 4 TIFF scanned at 600 dots per inch • Class* 4: CCITT Group 4 TIFF scanned at 1200 dots per inch. *Classes are for reference to the ATA Specification 2100 graphic specification section but are not indicative of compliance with the class attributes defined there. C. Gray scale and color graphic support General aviation legacy data may contains photographs and color illustrations which are not accommodated by the ATA Specification 2100. The following raster file formats are recommended for use in the exchange of gray scale and color graphic images: 1. Gray-scale • TIFF using Packbit compression • PCX. 2. Color • PCX-16 colors • PCX -256 colors • PCX - 16.7 million colors • Baseline JPEG. 3.3.3 Vector Graphics A. Minimum Requirements Electronic vector graphics files are required to be in a digital format that is electronically convertible to CClTT Group 4 TIFF. Examples include: • HPGL • CGM • IGES. B. Recommended Requirements The following electronic vector graphics files are recommended in order to conform to ATA Specification 2100 graphic section: • CGM file conforming to ISO Standard lSO/lEO 8632:1992 version 3 • DWG or DXF. MARCH 1999 11
Page 1: ELECTRONIC PUBLICATIONS STANDARD GA
Page 4 and 5: GAMA ELECTRONIC PUBLICATIONS STANDA
Page 15: GAMA ELECTRONIC PUBLICATIONS STANDA
Page 29 and 30: 5.2.7 Use of Color GAMA ELECTRONIC
Page 31: 5.3.3 Display of Vector Graphics GA
Page 43 and 44: • Graphics to graphics • Text t
Page 47: 7.4 Bookless Publication Functional

ELECTRONIC PUBLICATIONS STANDARD

Create successful ePaper yourself

Delete template?

Save as template?