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WeightMatrix Class Reference

#include <GUINeuralNet.h>

Collaboration diagram for WeightMatrix:

[legend]List of all members.

Public Member Functions
	WeightMatrix (QWidget *parent=0, const char *name=0)
	~WeightMatrix (void)
void	setNet (PerceptronNetwork *net)
void	setLayerNum (unsigned int layernum)
unsigned int	getLayerMax (void) const
Protected Member Functions
void	paintEvent (QPaintEvent *)
Private Member Functions
void	paintSquare (unsigned int wx, unsigned int wy, const QColor &col)
Private Attributes
unsigned int	weight_fromcount
unsigned int	weight_tocount
unsigned int	layernum
unsigned int	x_needed
unsigned int	y_needed
PerceptronNetwork *	net
vector< double >	thetas
double	theta_min
double	theta_max
double	theta_mid
double	theta_rng
vector< vector< double > >	weights
double	weight_min
double	weight_max
double	weight_mid
double	weight_rng
QPainter *	painter
unsigned int	margin_up
unsigned int	margin_down
unsigned int	margin_left
unsigned int	margin_right
int	x_box
int	y_box
int	square_size_x
int	square_size_y

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Detailed Description

Wrapper class from a neural network weight matrix to a GUI visualization.

The neural network related code is encapsulated within this class, so the GUI does use only this widget and does not have to cope with the PerceptronNetwork directly.

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Constructor & Destructor Documentation

WeightMatrix::WeightMatrix (  QWidget *    parent = 0, const char *    name = 0 )

Constructor which draws the weight diagramm for the weights going from layer layernum within network net. Parameters: parent  The standard QT parent widget. name  The widgets' name.

WeightMatrix::~WeightMatrix (  void    )

Standard destructor.

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Member Function Documentation

unsigned int WeightMatrix::getLayerMax (  void    )  const

Give the maximum layer number. Returns: The maximum layer number plus one, i.e. 2 means: 0-1 is allowed.

void WeightMatrix::paintEvent (  QPaintEvent *    )  [protected]

QT paintEvent method, used to redraw the modified screen content.

void WeightMatrix::paintSquare (  unsigned int    wx, unsigned int    wy, const QColor &    col )  [private]

Paint a single rectangle on the rectangle plane. Parameters: wx  The virtual x position on the plane. wy  The virtual y position on the plane. col  The color the rectangle is drawn in.

void WeightMatrix::setLayerNum (  unsigned int    layernum )

Set the layer which outgoing weights will be shown Parameters: layernum  The layer index into the network.

void WeightMatrix::setNet (  PerceptronNetwork *    net )

Set the PerceptronNetwork Parameters: net  The neural network the weight diagramm is created from.

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Member Data Documentation

unsigned int WeightMatrix::layernum [private]

Layer which outgoing weights will be shown

unsigned int WeightMatrix::margin_down [private]

Margin to the downside border of the widget, in pixels

unsigned int WeightMatrix::margin_left [private]

Margin to the left border of the widget, in pixels

unsigned int WeightMatrix::margin_right [private]

Margin to the right border of the widget, in pixels

unsigned int WeightMatrix::margin_up [private]

Margin to the upper border of the widget, in pixels

PerceptronNetwork* WeightMatrix::net [private]

The neural network the weight diagram is created from.

QPainter* WeightMatrix::painter [private]

The QT painter needed to (re-) draw the canvas. Initialized once upon object construction and used from there.

int WeightMatrix::square_size_x [private]

The size of one square in x direction

int WeightMatrix::square_size_y [private]

The size of one square in y direction

double WeightMatrix::theta_max [private]

Maximum theta value found in current theta vector.

double WeightMatrix::theta_mid [private]

Middle of theta_min and theta_max.

double WeightMatrix::theta_min [private]

Minimum theta value found in current theta vector.

double WeightMatrix::theta_rng [private]

Absolute range between theta_min and theta_max.

vector<double> WeightMatrix::thetas [private]

The theta column values. Extracted from the neurons of the displayed layer.

unsigned int WeightMatrix::weight_fromcount [private]

Hold the number of weight origins.

double WeightMatrix::weight_max [private]

The maximum weight found in the current weight matrix.

double WeightMatrix::weight_mid [private]

Middle between weight_min and weight_max.

double WeightMatrix::weight_min [private]

The minimum weight found in the current weight matrix.

double WeightMatrix::weight_rng [private]

Absolute distance between weight_min and weight_max.

unsigned int WeightMatrix::weight_tocount [private]

Hold the number of weight targets.

vector<vector<double> > WeightMatrix::weights [private]

The array of weight values displayed. Extracted from both the individual weights of the neurons of the current layer.

int WeightMatrix::x_box [private]

The actual available pixelsize for the squares in x direction

unsigned int WeightMatrix::x_needed [private]

Number of squares needed in the widget in horizontal direction. Calculated as .

int WeightMatrix::y_box [private]

The actual available pixelsize for the squares in y direction

unsigned int WeightMatrix::y_needed [private]

Number of squares needed in the widget in vertical direction. Calculated as .

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The documentation for this class was generated from the following files:

• GUINeuralNet.h
• GUINeuralNet.cpp

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