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Sesión 4. Metadatos

Sistemas de Informaci ón Geográfica. Sesión 4. Metadatos. Formatos y tipos. Metadata File format : Raster Data type. Byte Integer Real RGB24 RGB8. Raster Vector. Metadata File format : Vector Id type Object type. Integer Real. 2850 2851 2853 2852. ASCII Binary. Point

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Sesión 4. Metadatos

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  1. Sistemas de Información Geográfica Sesión 4. Metadatos

  2. Formatos y tipos Metadata File format : Raster Data type Byte Integer Real RGB24 RGB8 Raster Vector Metadata File format : Vector Id type Object type Integer Real 2850 2851 2853 2852 ASCII Binary Point Line Polygon Text 011010101000101011110010011011001 Toluca Lerma Metadata File format Metadata File type ASCII = American Standard Code for Information Interchange

  3. Tipos de dato o de identificador 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 Swap byte order 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 Bit(binary digit) [0 1] 0/1 Byte = 8 bits [0 255=(28-1)] Integer : sin decimales = 2 (o 4)bytes = 16 (o 32)bits unsigned [0 65535=(216-1)] o signed [-32767 +32768] Real = float(ing point) : con decimales = 4 (simple) (o 8, double)bytes 7-8 cifras (o 14-15 cifras) RGB : 24 bits o 8 bits

  4. Modificar metadatos Metadata Data type File type ... Ref. system

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