# 공간데이터 연산

## 공간데이터 타입 ( Spatial Data Type )

공간데이터 표기법은 OGC 표준을 따르며, 다음과 같은 규칙을 가집니다.

<figure><img src="/files/yuN1TK5xmYKhymHVX59r" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/QMG1eyliw3q4vNWmtNOA" alt=""><figcaption></figcaption></figure>

## 공간 연산 함수 ( Spatial Operator Functions )

공간 연산 함수는 두 공간 객체의 연산 결과로 새로운 공간 객체를 반환해주는 함수입니다.

<figure><img src="/files/bMHX2JcNpySjhFc4jLJG" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/o0UX4tOFhKzgMh8VUYjR" alt=""><figcaption></figcaption></figure>

## 공간 관계 함수 ( Spatial Relation Functions )

공간 관계 함수는 두 공간 객체 간의 관계를 일반 데이터 타입(Boolean 또는 숫자)으로 반환해주는 함수입니다.

<figure><img src="/files/yyDD757tgHc0g8VDkeVO" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/xSa7ELtOBUP0M5UW7lnl" alt=""><figcaption></figcaption></figure>


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