Instructions for use

An online query tool developed for topographic map framing standards.

At present, the query of the new version number is completed, and the query of the old version number is not supported at present.

Provide 1 to 1 million (initial 3-digit encoding), 1 to 500,000 (B), 1 to 250,000 (C), 1 to 100,000 (D), 1 to 50,000 (E ), 1 than 25,000 (F), 1 to 1 (G) million map number query.

Multiple layers are stacked together. To avoid unfriendly information display, please zoom to the appropriate scale to view the map frame number.

Note

• Administrative boundaries are for illustrative purposes only and are not intended as demarcation criteria.
• Loads slowly when you first browse.
• To ensure browsing, please use a newer version of the browser.

Update description

• 2017-10-27: Use MapBox as the basemap.
• 2015-06-28: Using OpenStreetMap as a basemap, it is more convenient to use and the results are more
• accurate.
• 2015-06-06: Modified the map server, stopped using tilecache, and used tilestache. Stop using OpenLayers2,
• the front end uses leaflets, which are smaller and faster.

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