Issuing agency: General Administration of Quality Supervision, Inspection and Quarantine
Release time: 1998
Specification category: mandatory standards
Whether to abolish: No
Old standards: GB 12320-1990, GB 12318-1990
This standard specifies the mathematical basis, editing design, operation methods, editing and drawing of elements, editing and drawing work in printing, and updates.
This standard applies to the preparation of various scale nautical charts issued to domestic and foreign countries.
2 Reference standards
The following standards contain provisions that, through reference in this standard, constitute provisions of this standard. When this standard was published, the editions shown were all
Is effective. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards.
GB 1 231 9-1998 Chinese chart schema
GB / T 1 4477-1993 chart printing specifications
This standard uses the following definition
3 doors mapping information
It can be used to compile charts and maps, texts, data and other materials that are valuable for research, enrichment, correction and reference.
3.2 Banner image
A map whose length is longer than the length of the vertical profile.
A map whose length is smaller than the length of the vertical profile.
Overlaps between adjacent drawings of the same or similar scale.
3.5 Frame size
The dimensions of the inner part of the chart.
3.6 Editing scale
The scale used in chart editing operations.
3 stitching pictures
A picture composed of two or more small areas connected by drawing areas
A picture composed of two or more small pictures with non-adjacent drawing areas.
39 main drawing
Picture frame with drawings.
An arbitrary curve used to represent the morphological characteristics of mountains.