PdBaryDir ("JavaView Reference Manual")

java.lang.Object
- jv.vecmath.P_Vector
- - jv.vecmath.PdBaryDir

All Implemented Interfaces:

java.io.Serializable
```
public class PdBaryDir
extends P_Vector
```
Barycentric tangent vector of arbitrary dimension, sum of entries must be 0. Internal array length is equal to barycentric dimension.

See Also:
Serialized Form

Field Summary

Fields
Modifier and Type Field and Description

double[] m_data
Array with barycentric coordinates, sum of entries must be 1.

static PdBaryDir[] TRIANGLE_EDGE
Positive oriented edges.

Fields
Modifier and Type	Field and Description
`double[]`	`m_data` Array with barycentric coordinates, sum of entries must be 1.
`static PdBaryDir[]`	`TRIANGLE_EDGE` Positive oriented edges.

Constructor Summary

Constructors
Constructor and Description
`PdBaryDir()` Construct empty class with zero size.
`PdBaryDir(double x, double y)` Construct class with dimension=2 and given initial values.
`PdBaryDir(double x, double y, double z)` Construct class with dimension=3 and given initial values.
`PdBaryDir(double x, double y, double z, double w)` Construct class with dimension=4 and given initial values.
`PdBaryDir(int aSize)` Construct class with given dimension.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`add(PdBaryDir dir)` Add two vectors `this = this+dir`.
`static PdBaryDir[][]`	`alloc(int sizeI, int sizeJ, int vectorSize)` Allocate a new array of vectors, where all vectors have the same dimension.
`void`	`blend(double a, PdBaryDir v, double b, PdBaryDir w)` Interpolate between two vectors with given weights.
`void`	`blendBase(PdBaryDir v, double b, PdBaryDir w)` Interpolate between two vectors with given weights.
`java.lang.Object`	`clone()` Clone object and all instance variables.
`void`	`copy(PdBaryDir vec)` Copies argument vector into 'this', and possibly adjusts size of 'this'.
`void`	`copyArray(PdBaryDir vec)` Copies only data (no flags) of argument vector into 'this', and possibly adjusts size of 'this'.
`static PdBaryDir`	`copyNew(PdBaryDir v)` Create a new vector as clone of argument vector.
`static PdBaryDir`	`getBaryDir(PdBaryDir baryout, PdVector dir, PdVector v0, PdVector v1, PdVector v2)` Get barycentric direction in triangle given by points.
`static PdBaryDir`	`getBaryDir(PdBaryDir baryout, PdVector dir, PdVector v0, PdVector v1, PdVector v2, PdVector temp)` Get barycentric direction in triangle given by points.
`int`	`getElementInd()` Get the element index to which the barycentric coordinates refer.
`int`	`getSize()` Get dimension of barycentric vector.
`static PdVector`	`getVector(PdVector p, PdBaryDir bary, PdVector v0, PdVector v1, PdVector v2)` Get vector from barycentric direction in a triangle.
`void`	`leftMultMatrix(PdMatrix m)` Multiply vector with matrix `this = m*this`.
`void`	`leftMultMatrix(PdMatrix m, PdBaryDir v)` Multiply vector with matrix `this = m*v`.
`void`	`multScalar(double scalar)` Multiply all components with scalar.
`void`	`multScalar(PdBaryDir v, double scalar)` Multiply argument vector with scalar `this = scalar*v`.
`static PdBaryDir[]`	`realloc(PdBaryDir[] data, int arraySize, int vectorSize)` Allocate an array of baryDir vectors, where all vectors have the same dimension.
`void`	`setElementInd(int ind)` Get the element index to which the barycentric coordinates refer.
`int`	`setSize(int aSize)` Set dimension of barycentric vector, i.e. length of its data array.
`void`	`setZero()` Set all entries to a constant zero value.
`void`	`sub(PdBary m1, PdBary m2)` Difference of argument vectors `this = m1-m2`.
`java.lang.String`	`toShortString()` Create a single-line string representation of the vector components and attributes.
`java.lang.String`	`toString()` Create a multi-line string representation with detailed information about all instance variables.
`void`	`validate()` Check sum of barycentric coordinates, and adjust if sum is not zero.

Methods inherited from class jv.vecmath.P_Vector
clearTag, clone, clone, copy, getBits, getDetail, getName, getURL, hasTag, invert, setDetail, setName, setTag, setURL

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - TRIANGLE_EDGE
```
public static final PdBaryDir[] TRIANGLE_EDGE
```
    Positive oriented edges. Index is the local index of opposite vertex to edge.
  - m_data
```
public double[] m_data
```
    Array with barycentric coordinates, sum of entries must be 1. Length is equal to barycentric dimension.
- Constructor Detail
  - PdBaryDir
```
public PdBaryDir()
```
    Construct empty class with zero size.
  - PdBaryDir
```
public PdBaryDir(int aSize)
```
    Construct class with given dimension.
  - PdBaryDir
```
public PdBaryDir(double x,
         double y)
```
    Construct class with dimension=2 and given initial values.
  - PdBaryDir
```
public PdBaryDir(double x,
         double y,
         double z)
```
    Construct class with dimension=3 and given initial values.
  - PdBaryDir
```
public PdBaryDir(double x,
         double y,
         double z,
         double w)
```
    Construct class with dimension=4 and given initial values.
- Method Detail
  - alloc
```
public static PdBaryDir[][] alloc(int sizeI,
                  int sizeJ,
                  int vectorSize)
```
    Allocate a new array of vectors, where all vectors have the same dimension.
    
    Parameters:
    sizeI - number of rows in new array
    sizeJ - number of columns in row[i] in new array
    vectorSize - dimension of vectors in new array
    See Also:
    realloc(PdBaryDir [], int, int)
  - realloc
```
public static PdBaryDir[] realloc(PdBaryDir[] data,
                  int arraySize,
                  int vectorSize)
```
    Allocate an array of baryDir vectors, where all vectors have the same dimension. If argument data!=null then as most as possible of the content of existing vectors is copied into (possibly reused) vectors of the reallocated array.
    If requested array size is 0 then method returns an array of length 0.
    
    Parameters:
    data - possibly empty array of vectors
    arraySize - number of vectors in new array
    vectorSize - dimension of vectors in new array
    See Also:
    PdVector.realloc(PdVector [], int, int)
  - setZero
```
public void setZero()
```
    Set all entries to a constant zero value.
  - getElementInd
```
public int getElementInd()
```
    Get the element index to which the barycentric coordinates refer.
    
    Returns:
    Index of this element to which the barycentric coordinates refer.
  - setElementInd
```
public void setElementInd(int ind)
```
    Get the element index to which the barycentric coordinates refer.
    
    Parameters:
    ind - Index of this element to which the barycentric coordinates refer.
  - toString
```
public java.lang.String toString()
```
    Create a multi-line string representation with detailed information about all instance variables.
    
    Overrides:
    
    toString in class P_Vector
    
    See Also:
    toShortString()
  - toShortString
```
public java.lang.String toShortString()
```
    Create a single-line string representation of the vector components and attributes.
    
    See Also:
    toString()
  - clone
```
public java.lang.Object clone()
```
    Clone object and all instance variables. Similar like copyNew(PdBaryDir) but this clone() method is consistent with possible subclasses while copyNew() explicitly creates a new PdBaryDir.
    
    Overrides:
    
    clone in class java.lang.Object
    
    See Also:
    copyNew(PdBaryDir)
  - copyNew
```
public static PdBaryDir copyNew(PdBaryDir v)
```
    Create a new vector as clone of argument vector.
    
    Parameters:
    v - source vector to clone
  - copy
```
public void copy(PdBaryDir vec)
```
    Copies argument vector into 'this', and possibly adjusts size of 'this'.
    
    Parameters:
    vec - the vector to be copied
  - copyArray
```
public void copyArray(PdBaryDir vec)
```
    Copies only data (no flags) of argument vector into 'this', and possibly adjusts size of 'this'.
    
    Parameters:
    vec - the vector to be copied
  - getSize
```
public int getSize()
```
    Get dimension of barycentric vector.
  - setSize
```
public int setSize(int aSize)
```
    Set dimension of barycentric vector, i.e. length of its data array.
    
    Parameters:
    aSize - new number of components of vector
    
    Returns:
    new number of components of vector
  - blend
```
public void blend(double a,
         PdBaryDir v,
         double b,
         PdBaryDir w)
```
    Interpolate between two vectors with given weights. Uses this = v*a + w*b. If result vector 'this' is empty then its size is set to length of vector v, otherwise interpolation is done up to length of result vector.
    
    Parameters:
    a - weight of first vector
    v - first vector
    b - weight of second vector
    w - second vector
    See Also:
    blendBase(PdBaryDir, double, PdBaryDir)
  - blendBase
```
public void blendBase(PdBaryDir v,
             double b,
             PdBaryDir w)
```
    Interpolate between two vectors with given weights. Uses this = v + w*b. If result vector 'this' is empty then its size is set to length of vector v, otherwise interpolation is done up to length of result vector.
    
    Parameters:
    v - first vector
    w - second vector
    b - weight of second vector
    See Also:
    blend(double, PdBaryDir, double, PdBaryDir)
  - validate
```
public void validate()
```
    Check sum of barycentric coordinates, and adjust if sum is not zero.
  - multScalar
```
public void multScalar(PdBaryDir v,
              double scalar)
```
    Multiply argument vector with scalar this = scalar*v. Vectors v and this must be of same size.
  - multScalar
```
public void multScalar(double scalar)
```
    Multiply all components with scalar.
  - leftMultMatrix
```
public void leftMultMatrix(PdMatrix m)
```
    Multiply vector with matrix this = m*this. Matrix must be square and of same size than vector. Method does not change size of 'this'!
    
    Parameters:
    m - a matrix
  - leftMultMatrix
```
public void leftMultMatrix(PdMatrix m,
                  PdBaryDir v)
```
    Multiply vector with matrix this = m*v. Matrix need not be square. Argument vector must have same size as number of columns of matrix. Method modifies size of this vector to number of rows of matrix.
  - getVector
```
public static PdVector getVector(PdVector p,
                 PdBaryDir bary,
                 PdVector v0,
                 PdVector v1,
                 PdVector v2)
```
    Get vector from barycentric direction in a triangle.
    
    Parameters:
    p - output, may be null; a new vector is returned in this case
    
    Returns:
    World-representation of bary. Same as p if that is not null.
  - getBaryDir
```
public static PdBaryDir getBaryDir(PdBaryDir baryout,
                   PdVector dir,
                   PdVector v0,
                   PdVector v1,
                   PdVector v2)
```
    Get barycentric direction in triangle given by points.
    
    Parameters:
    baryout - output, may be null; a new barycentric vector is returned in this case
    
    Returns:
    Barycentric representation of dir. Same as baryout if that is not null.
    Since:
    
    JavaView 2.49.007
  - getBaryDir
```
public static PdBaryDir getBaryDir(PdBaryDir baryout,
                   PdVector dir,
                   PdVector v0,
                   PdVector v1,
                   PdVector v2,
                   PdVector temp)
```
    Get barycentric direction in triangle given by points.
    
    Parameters:
    baryout - may be null; a new barycentric vector is returned in this case
    temp - used as buffer, may be null (is allocated automatically in this case)
    
    Returns:
    Barycentric representation of dir. Same as baryout if that is not null.
    Since:
    
    JavaView 2.49.007
  - sub
```
public void sub(PdBary m1,
       PdBary m2)
```
    Difference of argument vectors this = m1-m2. Vectors must be of same size. The elementIdx will be ignored.
  - add
```
public void add(PdBaryDir dir)
```
    Add two vectors this = this+dir. Vectors must be of same size. The elementIdx will be ignored.

Class PdBaryDir

Field Summary

Constructor Summary

Method Summary

Methods inherited from class jv.vecmath.P_Vector

Methods inherited from class java.lang.Object

Field Detail

TRIANGLE_EDGE

m_data

Constructor Detail

PdBaryDir

PdBaryDir

PdBaryDir

PdBaryDir

PdBaryDir

Method Detail

alloc

realloc

setZero

getElementInd

setElementInd

toString

toShortString

clone

copyNew

copy

copyArray

getSize

setSize

blend

blendBase

validate

multScalar

multScalar

leftMultMatrix

leftMultMatrix

getVector

getBaryDir

getBaryDir

sub

add