org.web3d.x3d.sai
Interface MFVec2d

All Superinterfaces:

MField, X3DField

public interface MFVec2d
extends MField

Representation of a MFVec2d field.

Version:

1.0 30 April 1998

Method Summary

void	append(double[] value) Places a new value at the end of the existing value, increasing the field length accordingly.
void	clear() Removes all values in the field and changes the field size to zero.
void	get1Value(int index, double[] vec) Get the value of a particular vector value in the event out array.
void	getValue(double[] vec) Get the values of the event out flattened into a single 1D array.
void	getValue(double[][] vec) Write the value of the event out to the given array.
void	insertValue(int index, double[] value) Inserts a value into an existing index of the field.
void	removeValue(int index) Removes one value from the field.
void	set1Value(int index, double[] value) Set a particular vector value in the given eventIn array.
void	setValue(int numVecs, double[] value) Set the value of the array of 2D vectors.
void	setValue(int numVecs, double[][] value) Set the value of the array of 2D vectors.

Methods inherited from interface org.web3d.x3d.sai.MField

getSize

Methods inherited from interface org.web3d.x3d.sai.X3DField

addX3DEventListener, getDefinition, getUserData, isReadable, isWritable, removeX3DEventListener, setUserData

Method Detail

append

void append(double[] value)

Places a new value at the end of the existing value, increasing the field length accordingly.

Parameters:

value - The value to append value[0] = X
value[1] = Y

Throws:

java.lang.ArrayIndexOutOfBoundsException - A value did not contain at least three values for the vector definition.

clear

void clear()

Removes all values in the field and changes the field size to zero.

getValue

void getValue(double[][] vec)

Write the value of the event out to the given array.

Parameters:

vec - The array to be filled in where
vec[i][0] = X
vec[i][1] = Y

Throws:

java.lang.ArrayIndexOutOfBoundsException - The provided array was too small

getValue

void getValue(double[] vec)

Get the values of the event out flattened into a single 1D array. The array must be at least 3 times the size of the array.

Parameters:

vec - The array to be filled in where the vec[i + 0] = X
vec[i + 1] = Y

Throws:

java.lang.ArrayIndexOutOfBoundsException - The provided array was too small

get1Value

void get1Value(int index,
               double[] vec)

Get the value of a particular vector value in the event out array.

Parameters:

index - The position to get the vectory value from.

vec - The array to place the value in where. vec[0] = X
vec[1] = Y

Throws:

java.lang.ArrayIndexOutOfBoundsException - The provided array was too small or the index was outside the current data array bounds.

insertValue

void insertValue(int index,
                 double[] value)
                 throws java.lang.ArrayIndexOutOfBoundsException

Inserts a value into an existing index of the field. Current field values from the index to the end of the field are shifted down and the field length is increased by one to accomodate the new element. If the index is out of the bounds of the current field an ArrayIndexOutofBoundsException will be generated.

Parameters:

index - The position at which to insert

value - The new element to insert value[0] = X
value[1] = Y

Throws:

java.lang.ArrayIndexOutOfBoundsException - The index was outside the current field size.

java.lang.ArrayIndexOutOfBoundsException - A value did not contain at least three values for the vector definition.

removeValue

void removeValue(int index)
                 throws java.lang.ArrayIndexOutOfBoundsException

Removes one value from the field. Values at indices above the removed element will be shifted down by one and the size of the field will be reduced by one.

Parameters:

index - The position of the value to remove.

Throws:

java.lang.ArrayIndexOutOfBoundsException - The index was outside the current field size.

setValue

void setValue(int numVecs,
              double[] value)

Set the value of the array of 2D vectors. Input is an array of doubles If value[i] does not contain at least two values it will generate an ArrayIndexOutOfBoundsException. If value[i] contains more than two items only the first two values will be used and the rest ignored.

If one or more of the values for value[i] are null then the resulting event that is sent to the VRML scenegraph is implementation dependent but no error indicator will be set here.

Parameters:

numVecs - The number of items to copy from the array

value - The array of vec2f values where
value[i] = X
value[i+1] = Y

Throws:

java.lang.ArrayIndexOutOfBoundsException - A value did not contain at least two values for the vector definition.

setValue

void setValue(int numVecs,
              double[][] value)

Set the value of the array of 2D vectors. Input is an array of doubles If value[i] does not contain at least two values it will generate an ArrayIndexOutOfBoundsException. If value[i] contains more than two items only the first two values will be used and the rest ignored.

If one or more of the values for value[i] are null then the resulting event that is sent to the VRML scenegraph is implementation dependent but no error indicator will be set here.

Parameters:

numVecs - The number of items to copy from the array

value - The array of vec2f values where
value[i][0] = X
value[i][1] = Y

Throws:

java.lang.ArrayIndexOutOfBoundsException - A value did not contain at least two values for the vector definition.

set1Value

void set1Value(int index,
               double[] value)

Set a particular vector value in the given eventIn array. To the VRML world this will generate a full MFVec2f event with the nominated index value changed.

The value array must contain at least two elements. If the array contains more than 2 values only the first 2 values will be used and the rest ignored.

If the index is out of the bounds of the current array of data values or the array of values does not contain at least 2 elements an ArrayIndexOutOfBoundsException will be generated.

Parameters:

index - The position to set the vector value

value - The array of vector values where
value[0] = X
value[1] = Y

Throws:

java.lang.ArrayIndexOutOfBoundsException - A value did not contain at least 2 values for the vector