CHƯƠNG III
HỆ THỐNG KÍ HiỆU BẢN ĐỒ
1. Khaùi nieäm
Kí hieäu cuûa baûn ñoà laø ngoân ngöõ cuûa baûn ñoà,
chuùng coù nhieäm vuï truyeàn thoâng tin cuûa theá
giôùi thöïc leân baûn ñoà.
Muoán söû duïng ñöôïc baûn ñoà phaûi naém ñöôïc yù
nghóa cuûa kí hieäu
Yeâu caàu kyù
hieäu treân baûn
ñoà
- phaûi töông öùng vôùi ñoái töôïng
ñöôïc ñöa leân baûn ñoà
- phaûi deã ñoïc, deã nhôù vaø ñeïp
Chöùc
naêng cô
baûn cuûa
kí hieäu
- xaùc ñònh theå loaïi, vò trí vaø ñaëc
ñieåm phaân boá cuûa ñoái töôïng
trong khoâng gian
- theå hieän ñaëc ñieåm ñònh tính vaø
ñònh löôïng cuûa ñoái töôïng
Bieåu thò vò trí cuûa ñoái töôïng trong khoâng gian
Toïa ñoä vuoâng goùc phaúng x=1170375,25m
y = 730331,71m
![Bài giảng Hàng hải địa văn [chuẩn nhất]](https://cdn.tailieu.vn/images/document/thumbnail/2025/20250729/vijiraiya/135x160/43361753782101.jpg)
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