Package org.geotools.data.oracle.sdo

Interface CoordinateAccess

All Superinterfaces:

Cloneable, CoordinateSequence

public interface CoordinateAccess
extends CoordinateSequence

Allows manipulation of a Geometry's CoordinateSequence.

The number of ordinates in each Coordinate is getDimension() + getNumAttributes()
The examples given in this interface are based on a 2-dimensional coordinate system, x and y,
with two attributes: z and t.
In this case z is the third dimension, but is not used for rendering and the coordinate
remains 2-dimensional.

Author:

jgarnett

Field Summary

Fields inherited from interface CoordinateSequence

M, X, Y, Z

Method Summary

Modifier and Type	Method	Description
Object	getAttribute(int coordinate, int attribute)	getAttribute purpose.
int	getDimension()	Retrieve the number of spatial dimensions of Coordinates.
int	getNumAttributes()	Retrieve number of measures associated with a Coordinate
double	getOrdinate(int coordinate, int ordinate)	Retrive a single ordinate
void	setAt(int coordinate, double[] ordinates, Object[] attributes)	Allows modification of a single coordinate (including attribute values).
void	setAttribute(int coordinate, int attribute, Object value)	setAttribute purpose.
void	setAttributeArray(int attribute, Object attributeArray)	setAttributeArray purpose.
void	setCoordinateArrays(double[][] ordinateArrays, Object[] attributeArrays)	Completely replace sequence with the provided information.
void	setOrdinate(int coordinate, int ordinate, double value)	Set a single ordinate.
void	setOrdinateArray(int ordinate, double[] ordinateArray)	Supplies an array of ordinates.
Object[]	toAttributeArray(int attribute)	toAttributeArray purpose.
Object[]	toAttributeArrays()	Retrieve Attribute information (an array of attributes for each coordinate).
double[]	toOrdinateArray(int ordinate)	Retrive ordinates as an array.
double[][]	toOrdinateArrays()	Retrieve ordinate information (an array of ordinates for each coordinate).

Methods inherited from interface CoordinateSequence

clone, copy, createCoordinate, expandEnvelope, getCoordinate, getCoordinate, getCoordinateCopy, getM, getMeasures, getX, getY, getZ, hasM, hasZ, size, toCoordinateArray

Method Detail

getDimension

int getDimension()

Retrieve the number of spatial dimensions of Coordinates.

This is the number of spatially significant ordinates (usually 2 or 3)

Specified by:

getDimension in interface CoordinateSequence

Returns:

Number of spatially significant ordinates

getNumAttributes

int getNumAttributes()

Retrieve number of measures associated with a Coordinate

This is the number of non spatially significant ordinates.

Returns:

Number of measures, or 0 if measures not used

getOrdinate

double getOrdinate(int coordinate,
                   int ordinate)

Retrive a single ordinate

Specified by:

getOrdinate in interface CoordinateSequence

Parameters:

coordinate - Coordinate to retrieve from

ordinate - Ordinate to retrieve from coordinate

Returns:

Specified ordinate

getAttribute

Object getAttribute(int coordinate,
                    int attribute)

getAttribute purpose.

attribute is between 0 and getNumAttributes()

Parameters:

attribute - is between 0 and getNumAttributes()

setOrdinate

void setOrdinate(int coordinate,
                 int ordinate,
                 double value)

Set a single ordinate.

Specified by:

setOrdinate in interface CoordinateSequence

Parameters:

coordinate - Corrdinate to modify

ordinate - Ordinate to modify in coordinate

value - new value

setAttribute

void setAttribute(int coordinate,
                  int attribute,
                  Object value)

setAttribute purpose.

attribute is between 0 and getNumAttributes()

Parameters:

coordinate - the coordinate to be modified

attribute - between 0 and getNumAttributes()

toOrdinateArray

double[] toOrdinateArray(int ordinate)

Retrive ordinates as an array.

Example: (x,y) getDimension()==2
This is defined for the number of dimensions. If the other attributes happen to be a double, they can still be accessed by using an ordinate value greater than getDimension().

• ordinate 0: x ordinate
• ordinate 1: y ordinate
• ordinate 2: m attribute
• ordinate 3: g attribute

Parameters:

ordinate - Ordinate to retrieve. ordinate is less than
getDimension()+getMeasures() if the measures are doubles as well. Otherwise
ordinate is less than getDimensions().

Returns:

ordinate array

toAttributeArray

Object[] toAttributeArray(int attribute)

toAttributeArray purpose.

Description ...

Parameters:

attribute - Between 0 and getNumAttrributes()

Returns:

an array of attributes

setOrdinateArray

void setOrdinateArray(int ordinate,
                      double[] ordinateArray)

Supplies an array of ordinates.

The ordinateArray should be the same length as the CoordinateSequence.
ordinate should be between 0 and getDimension().
If the attributes are doubles as well, then ordinate can be as great as
getDimension() + getNumAttributes().

setAttributeArray

void setAttributeArray(int attribute,
                       Object attributeArray)

setAttributeArray purpose.

Description ...

Parameters:

attribute - between 0 and getNumAttributes()

attributeArray - May be an object or primitive array

toOrdinateArrays

double[][] toOrdinateArrays()

Retrieve ordinate information (an array of ordinates for each coordinate).

Example: (x,y,m,g) getDimension()==2, getNumAttributes()==2

 [ [ x1, x2,...,xN], [ y1, y2,...,yN] ]
 

Returns:

column major ordinate arrays (these are spatially significant)

toAttributeArrays

Object[] toAttributeArrays()

Retrieve Attribute information (an array of attributes for each coordinate).

Example: (x,y,m,g) getDimension()==2, getAttributes()==2

 [ [ m1, m2,...,mN], [ g1, g2,..., gN] ]
 

Returns:

Attribute Arrays, may be object or primitive arrays

setCoordinateArrays

void setCoordinateArrays(double[][] ordinateArrays,
                         Object[] attributeArrays)

Completely replace sequence with the provided information.

Example: (x,y,m,g) getDimension()==2, getNumAttributes()==2

 dimensions:[ [ x1, x2,...,xN], [ y1, y2,...,yN] ]
 attributes:[ [ m1, m2,...,mN], [ g1, g2,..., gN] ]
 

Parameters:

ordinateArrays - dimensions column major ordinate arrays (these are spatially significant)

attributeArrays - Individual attribute arrays may be primitive or object arrays

setAt

void setAt(int coordinate,
           double[] ordinates,
           Object[] attributes)

Allows modification of a single coordinate (including attribute values).

Normal Use: where D is getDimensions() and N is getNumAttributes():

 dimensions: [ ordX, ordY, ..., ordD ]
 attributes: [ atr1, atr2, ...., atrN ]
 

When dealing with attributes that are all double values the ordinates array may be used to set both ordinates and attribute values.

Optimized Use: where D is getDimensions() and N is getNumAttributes():

 dimensions: [ ordX, ordY, ..., ordD, atr1, atr2, ... attrN ]
 attributes: null
 

Parameters:

coordinate - index of coordinate to be modified

ordinates - array ordinate values (may be extended with attribute values)

attributes - array of attribute values, or null is ordinates has been extended