| 개발자: | Stuart Woolley (15) | ||
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기술
Master the IALA Maritime Buoyage System with DatumMark, a comprehensive reference and revision tool for mariners, sailing students, and anyone preparing for RYA, ISA, or coastal navigation examinations.
COMPLETE IALA MARK REFERENCE
All 12 mark types of the IALA Maritime Buoyage System, covering lateral, cardinal, isolated danger, safe water, special, and emergency wreck marking buoys. Each mark includes full specifications: hull colours, shapes, topmark configurations, light characteristics, and their navigational meaning.
BOTH IALA REGIONS
Switch between Region A (Europe, Africa, Asia, Australasia) and Region B (Americas, Japan, Korea, Philippines). Lateral marks update automatically to reflect the correct colour conventions for your region. Cardinal and all other mark types are displayed identically, as per the international standard.
ANIMATED LIGHT CHARACTERISTICS
Every light rhythm is animated to IALA specification — flashing, quick, very quick, ultra quick, isophase, occulting, Morse code, long flashing, and alternating sequences. See exactly how each light behaves at night, with correct flash rates and group patterns including composite sequences like Fl(2+1) and VQ(6)+LFl.
INTERACTIVE BUOY DIAGRAMS
Rendered buoy illustrations showing accurate hull colours, horizontal and vertical banding, topmark shapes and orientations, and animated navigation lights — all drawn to IALA standard against a sky and sea background for clarity.
QUICK REFERENCE CARD
A single-screen summary of every mark — colour, topmark, and light character at a glance. Like the laminated reference card on your chart table, always in your pocket.
EXAM QUIZ MODE
Three quiz modes to test your knowledge:
Identify the Mark — recognise a buoy from its visual appearance
What Does It Mean? — match marks to their navigational meaning
Light Character — identify light rhythms from animated sequences
Ten questions per session with immediate feedback, explanations, and a pass/fail score against the RYA threshold of 7/10.
REFERENCE SECTIONS
Browse all light rhythms with descriptions and abbreviations, buoy shapes with their usage, and topmark types with the marks they belong to.
NIGHT VISION MODE
Three display themes: Amber, Green, and Red. The red theme preserves scotopic (night-adapted) vision, suitable for use on the bridge during hours of darkness.
DESIGNED FOR MARINERS
DatumMark is part of the Datum series of informational apps. Built for clarity, accuracy, and quick reference — whether you are revising for an exam, refreshing your knowledge before a passage, or settling a debate in the cockpit.
This application is provided for educational and revision purposes only. Always consult official charts, publications, and up-to-date notices to mariners.
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«DatumMark». 플랫폼: iOS. 카테고리: 참고. 개발자: «Stuart Woolley». 첫 번째 릴리스: . 마지막 업데이트: . 현재 가격: $0.99. 최저 기록 가격: $0.99. 최고 기록 가격: $0.99. 이 타이틀은 아직 AppAgg에서 평가나 리뷰를 받지 못했습니다. 사용 가능한 언어: English. AppAgg는 «DatumMark»의 가격 기록, 평점 및 사용자 피드백을 추적합니다. 향후 할인 및 업데이트 받기: RSS에서 확인할 수 있습니다. AppAgg는 애플리케이션을 호스팅하거나 소프트웨어를 배포하지 않습니다. 모든 상표, 로고 및 스크린샷은 해당 소유자의 자산입니다.
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