Bytes 0–1: Upper left X coordinate of image hotspot.Bytes 2–3: Upper left Y coordinate of image hotspot.Bytes 4–5: Lower right X coordinate of image hotspot.Bytes 6–7: Lower right Y coordinate of image hotspot.Byte 8: Referent type: a figure (0x31), a part name code (0x33), or a standard part number (0x34).In the header and references list, the byte sizes, width, height, and coordinates are big-endian, unsigned integers. The illustration identifiers and referents are strings of eight-bit characters, using the ISO 646 code points for 0 (0x30) through 9 (0x39) and A (0x41) through Z (0x5A), filled to the field length with spaces (0x20). The references list is followed by the padding, consisting of zero or more zero bytes (0x00), which usually-but not always!-bring the total size of the illustration to a multiple of 2048 bytes-after which the next illustration begins. The electronic catalog of original spare parts (EPC) Toyota, Lexus for all regions contains all technical information on spare parts, intended for cars. I’m not sure why the padding is used, since it makes the files about 5 to 8 percent larger, nor why it is sometimes omitted. Bytes 11–14: Size of the illustration in bytes, including the padding.Bytes 7–10: Byte offset of the illustration in IMAGEF.DAT, taking the first byte of that file as 1, not 0.IMAGEF.IA0 contains a 15-byte index entry for each illustration in IMAGEF.DAT: IMAGEF.DAT is accompanied by two or three index files, IMAGEF.IA0, IMAGEF.IA1, and IMAGEF.IA2. The byte offset and byte size are little-endian, unsigned integers. I don’t know why the byte order is different for the index.
IMAGEF.IA1 and IMAGEF.IA2 (if present) are index files to IMAGEF.IA0 and are not described further. Interpreting the other catalog data files on the DVDs is left as an exercise for the reader.The original Toyota parts catalog contains such popular models as the Land Cruiser, Prado, Corolla, Avensis, Rav 4, Camry, Carina, others. These were made for the markets of USA, Europe, Asia, Japan. This means that you can work with left-hand drive and right-hand drive Toyota models using wines or chassis numbers. Unlike Toyota’s online catalog, Toyota EPC uses a professional parts search tool for dealers.
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