GB/T 17798-2007Geospatial data transfer format (English PDF)

National Standard of the People's Republic of China

ICS

07.040

Classification

A 75

Replacing

GB/T 17798-1999

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

• Introduction
• 1 Scope
• 2 Normative references
• 3 Terms and definitions
• 4 General
• 4.1 Spatial Data Model
• 4.2 standard format
• 4.4 file structure basic constituent elements
• 4.5 format keyword
• 4.6 File Types
• 4.7 Scalable Principle
• 5 Vector Data Interchange Format
• 5.1 General provisions
• 5.2 Header
• 5.3 Note
• 5.4 feature type parameter
• 5.5 attribute data structure
• 5.7 Notes
• 5.8 topology data
• 5.9 attribute data
• 5.11 Example 21 vector data interchange format
• 6 orthophoto data exchange format
• 6.1 General provisions
• 6.2 orthophoto data origin and storage sequence
• 6.3 Content and format of
• 7 Grid Data Interchange Format
• 7.1 Value grid
• 7.3 data files
• 7.4 Content and format of
• 7.5 Grid Data Interchange Format Example
• Appendix A Concepts and Object Model (normative) spatial data
• Annex B (informative) standard mode (Schema)
• Annex C (normative) commonly used reference ellipsoid, projection types and parameters
• Annex D (informative) vector data exchange format sample
• Annex E (informative) orthophoto additional information interchange format sample
• Annex F (informative) Grid Data Interchange Format Sample