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  2. Luzon Datum of 1911 - Wikipedia

    en.wikipedia.org/wiki/Luzon_Datum_of_1911

    In 1911, these different networks on different datums and with different origins were consolidated into one nationwide network and the Luzon Datum was established with triangulation station Balanacan as its datum origin. The Luzon Datum became the primary geodetic reference of all surveys in the Philippines. [1] [2] [3]

  3. File:Atlas of the Philippine Islands 1899 (maps only).pdf

    en.wikipedia.org/wiki/File:Atlas_of_the...

    A series of maps of the Philippine Islands, taken from the 1899/1900 atlas. ... determination method or standard: SHA-1. data size. 25,711,999 byte. height. 1,272 pixel.

  4. Triangulation (surveying) - Wikipedia

    en.wikipedia.org/wiki/Triangulation_(surveying)

    On land, the cartographer Gemma Frisius proposed using triangulation to accurately position far-away places for map-making in his 1533 pamphlet Libellus de Locorum describendorum ratione (Booklet concerning a way of describing places), which he bound in as an appendix in a new edition of Peter Apian's best-selling 1524 Cosmographica. This ...

  5. Baselines of the Philippines - Wikipedia

    en.wikipedia.org/wiki/Baselines_of_the_Philippines

    The Philippines is an archipelago of 7,641 islands customarily enclosed by the lines demarcated by the Treaty of Paris in 1898 and its supplementary Treaty of Washington of 1900, and the Convention Between the United States and Great Britain in 1930, which came to be known in the Philippines as its International Treaty Limits.

  6. Triangulation - Wikipedia

    en.wikipedia.org/wiki/Triangulation

    Triangulation today is used for many purposes, including surveying, navigation, metrology, astrometry, binocular vision, model rocketry and, in the military, the gun direction, the trajectory and distribution of fire power of weapons. The use of triangles to estimate distances dates to antiquity.

  7. Triangulation station - Wikipedia

    en.wikipedia.org/wiki/Triangulation_station

    A triangulation station, also known as a trigonometrical point, and sometimes informally as a trig, is a fixed surveying station, ... Serveur de fiches (maps). French ...

  8. Velarde map - Wikipedia

    en.wikipedia.org/wiki/Velarde_map

    The Philippines believes that the label Panacot on the map refers to the Scarborough Shoal, and it is the first map with label Panacot on it. [ 20 ] [ 21 ] Professor Li Xiaocong of China pointed out that the label Panacot in the 1734 map was not Scarborough Shoal, and the three groups of islands, Galit, Panacot and Lumbay also appeared in the ...

  9. A 1890 Maps of the Philippines — depicting the distributions of its tribes and ... determination method or standard: SHA-1. data size. 483,163 byte. height. 2,055 ...