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Comprehensive Cave Mapping: Over 300 Entrances & 1200 Surveys on Google Maps

Explore CaveMaps.org, the leading resource for cave enthusiasts! With over 300 cave entrances and 70 cave outlines available on Google Maps, you'll find detailed and high-resolution surveys for more than 1200 caves. Our site receives over 120 visits per week and is the top Google hit for 'Cave Maps'. Contributing clubs such as CPC, RRCPC, and BPC enhance our growing database. Learn how to scan and restore old cave surveys, and discover techniques for creating transparent overlays in Google Earth.

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Comprehensive Cave Mapping: Over 300 Entrances & 1200 Surveys on Google Maps

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Presentation Transcript

  1. Intro.wmv

  2. CaveMaps.org • 300+ Entrances on Google Maps • 70+ Cave Outlines on Google Maps • 500+ Full resolution surveys • 1200+ Surveys catalogued & thumb-nailed • 120 Visits per week • No. 1 Google Hit for ‘Cave Maps’ Work in progress ...

  3. Contributing Clubs • CPC • RRCPC • BPC • NCC • LUSS • YSS • ULSA • Black Sheep Diggers • KCC • NPC

  4. Google Earth Overlay

  5. Scanning Old Cave Surveys

  6. Scan at the highest resolution • E.g. 300 DPI Greyscale

  7. Don’t Save as JPEG

  8. Preserve Anti-aliasing

  9. How to restore Anti-aliasing • Scan at high DPI • Clean up the image • Resample to reduce image size

  10. Transparent Backgrounds

  11. 1st Attempt: Magic Wand

  12. 2nd Attempt: Colour Replacement

  13. 3rd Attempt: Colour to Alpha

  14. Google Earth Overlays

  15. Double Entrance.avi Double Entrance (part 2).avi Videos\Single Entrance.wmv

  16. Google Map Tiles

  17. Zoom 1 Zoom 0 256 pixels

  18. Zoom 2 (16 tiles) Zoom 1 (4 tiles)

  19. 2621 Terabytes

  20. Zoom 21 Street View Zoom 19

  21. Photoshop

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