GeometryUtils (H2 Database Engine 2.0.0 API)

java.lang.Object
- org.h2.util.geometry.GeometryUtils

public final class GeometryUtils
extends Object

Utilities for GEOMETRY data type.

嵌套类概要

嵌套类
限定符和类型	类和说明
`static class`	`GeometryUtils.DimensionSystemTarget` Converter output target that determines minimal dimension system for a geometry.
`static class`	`GeometryUtils.EnvelopeTarget` Converter output target that calculates an envelope.
`static class`	`GeometryUtils.Target` Converter output target.

字段概要

字段
限定符和类型	字段和说明
`static int`	`DIMENSION_SYSTEM_XY` Code of 2D (XY) dimension system.
`static int`	`DIMENSION_SYSTEM_XYM` Code of M (XYM) dimension system.
`static int`	`DIMENSION_SYSTEM_XYZ` Code of Z (XYZ) dimension system.
`static int`	`DIMENSION_SYSTEM_XYZM` Code of ZM (XYZM) dimension system.
`static int`	`GEOMETRY_COLLECTION` GEOMETRYCOLLECTION geometry type.
`static int`	`LINE_STRING` LINESTRING geometry type.
`static int`	`M` Number of M coordinate.
`static int`	`MAX_X` Maximum X coordinate index.
`static int`	`MAX_Y` Maximum Y coordinate index.
`static int`	`MIN_X` Minimum X coordinate index.
`static int`	`MIN_Y` Minimum Y coordinate index.
`static int`	`MULTI_LINE_STRING` MULTILINESTRING geometry type.
`static int`	`MULTI_POINT` MULTIPOINT geometry type.
`static int`	`MULTI_POLYGON` MULTIPOLYGON geometry type.
`static int`	`POINT` POINT geometry type.
`static int`	`POLYGON` POLYGON geometry type.
`static int`	`X` Number of X coordinate.
`static int`	`Y` Number of Y coordinate.
`static int`	`Z` Number of Z coordinate.

方法概要

所有方法静态方法具体方法
限定符和类型	方法和说明
`static double[]`	`getEnvelope(byte[] ewkb)` Calculates an envelope of a specified geometry.
`static boolean`	`intersects(double[] envelope1, double[] envelope2)` Checks whether two envelopes intersect with each other.
`static double[]`	`union(double[] envelope1, double[] envelope2)` Returns union of two envelopes.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 字段详细资料
  - POINT
```
public static final int POINT
```
    POINT geometry type.
    
    另请参阅:
    
    常量字段值
  - LINE_STRING
```
public static final int LINE_STRING
```
    LINESTRING geometry type.
    
    另请参阅:
    
    常量字段值
  - POLYGON
```
public static final int POLYGON
```
    POLYGON geometry type.
    
    另请参阅:
    
    常量字段值
  - MULTI_POINT
```
public static final int MULTI_POINT
```
    MULTIPOINT geometry type.
    
    另请参阅:
    
    常量字段值
  - MULTI_LINE_STRING
```
public static final int MULTI_LINE_STRING
```
    MULTILINESTRING geometry type.
    
    另请参阅:
    
    常量字段值
  - MULTI_POLYGON
```
public static final int MULTI_POLYGON
```
    MULTIPOLYGON geometry type.
    
    另请参阅:
    
    常量字段值
  - GEOMETRY_COLLECTION
```
public static final int GEOMETRY_COLLECTION
```
    GEOMETRYCOLLECTION geometry type.
    
    另请参阅:
    
    常量字段值
  - X
```
public static final int X
```
    Number of X coordinate.
    
    另请参阅:
    
    常量字段值
  - Y
```
public static final int Y
```
    Number of Y coordinate.
    
    另请参阅:
    
    常量字段值
  - Z
```
public static final int Z
```
    Number of Z coordinate.
    
    另请参阅:
    
    常量字段值
  - M
```
public static final int M
```
    Number of M coordinate.
    
    另请参阅:
    
    常量字段值
  - DIMENSION_SYSTEM_XY
```
public static final int DIMENSION_SYSTEM_XY
```
    Code of 2D (XY) dimension system.
    
    另请参阅:
    
    常量字段值
  - DIMENSION_SYSTEM_XYZ
```
public static final int DIMENSION_SYSTEM_XYZ
```
    Code of Z (XYZ) dimension system. Can also be used in bit masks to determine presence of dimension Z.
    
    另请参阅:
    
    常量字段值
  - DIMENSION_SYSTEM_XYM
```
public static final int DIMENSION_SYSTEM_XYM
```
    Code of M (XYM) dimension system. Can also be used in bit masks to determine presence of dimension M.
    
    另请参阅:
    
    常量字段值
  - DIMENSION_SYSTEM_XYZM
```
public static final int DIMENSION_SYSTEM_XYZM
```
    Code of ZM (XYZM) dimension system. Can be also combined from DIMENSION_SYSTEM_XYZ and DIMENSION_SYSTEM_XYM using bitwise OR.
    
    另请参阅:
    
    常量字段值
  - MIN_X
```
public static final int MIN_X
```
    Minimum X coordinate index.
    
    另请参阅:
    
    常量字段值
  - MAX_X
```
public static final int MAX_X
```
    Maximum X coordinate index.
    
    另请参阅:
    
    常量字段值
  - MIN_Y
```
public static final int MIN_Y
```
    Minimum Y coordinate index.
    
    另请参阅:
    
    常量字段值
  - MAX_Y
```
public static final int MAX_Y
```
    Maximum Y coordinate index.
    
    另请参阅:
    
    常量字段值
- 方法详细资料
  - getEnvelope
```
public static double[] getEnvelope(byte[] ewkb)
```
    Calculates an envelope of a specified geometry.
    
    参数:
    
    ewkb - EWKB of a geometry
    
    返回:
    
    envelope, or null
  - intersects
```
public static boolean intersects(double[] envelope1,
                                 double[] envelope2)
```
    Checks whether two envelopes intersect with each other.
    
    参数:
    
    envelope1 - first envelope, or null
    
    envelope2 - second envelope, or null
    
    返回:
    
    whether the specified envelopes intersects
  - union
```
public static double[] union(double[] envelope1,
                             double[] envelope2)
```
    Returns union of two envelopes. This method does not modify the specified envelopes, but may return one of them as a result.
    
    参数:
    
    envelope1 - first envelope, or null
    
    envelope2 - second envelope, or null
    
    返回:
    
    union of two envelopes

类 GeometryUtils

嵌套类概要

字段概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

POINT

LINE_STRING

POLYGON

MULTI_POINT

MULTI_LINE_STRING

MULTI_POLYGON

GEOMETRY_COLLECTION

X

Y

Z

M

DIMENSION_SYSTEM_XY

DIMENSION_SYSTEM_XYZ

DIMENSION_SYSTEM_XYM

DIMENSION_SYSTEM_XYZM

MIN_X

MAX_X

MIN_Y

MAX_Y

方法详细资料

getEnvelope

intersects

union