# The &kfract; Handbook

Uwe
Thiem

    uwe@uwix.alt.na

Pamela
Roberts

    pam.roberts@btinternet.com

1999
2001
Uwe Thiem, Pamela Roberts
&FDLNotice;
2001-07-07
01.03.00

&kfract; generates and displays fractal images.

This Handbook describes &kfract; Version 1.3

KDE
graphics
fractal

## Introduction

&kfract;

&kfract; is a generator for fractals. Well, at this early stage it's only capable of mandelbrot sets and julia sets, nothing fancy like Xfractint, and it's way far from being as fast as fractint. But it's much easier to use.

Please feel free to contact me:

Uwe Thiem uwe@kde.org

## Using KFract

### Mouse functions

You can zoom in by holding the &LMB; down and drawing a rectangle to define which part of the picture you want to zoom in to. The center of the rectangle will be the center of the new picture, the X/Y ratio will be adapted to fit into the window.

You can also zoom in by just clicking the &MMB; where you want the center of the new picture to be.

Or you can zoom out by clicking with the &RMB;.

### The File Menu

&Ctrl;O File Open params...

  Loads a &kfract; parameter file.

File Save params...

  Saves the parameters of the current pictures. The file should be named with a `.fct` extension (for example `BigJulie.fct`) and can be re-loaded later in order to re-calculate the picture. It consists of plain ASCII and can be exchanged among different machines of even different architectures as long as &kde; is installed.

&Ctrl;P File Save pic...

  Save the picture to a file. The format of the saved file is determined by the extension you give to the filename, for example `mandel.png` will save it in `.png` format.

&Ctrl;Q File Quit

  Well, here you leave &kfract;.

### The View Menu

&Ctrl;+ View Zoom In

  Zoom in.

&Ctrl;- View Zoom Out

  Zoom out.

View Zoom...

  This option should let you change the Zoom In and Zoom Out factors, but unfortunately it doesn't work at this time.

### The Options Menu

&Ctrl;M Options Mandelbrot...

  Switches to the Mandelbrot set and lets you set various parameters for the calculation and display.

&Ctrl;J Options Julia...

  Switches to the Julia set and lets you set various parameters for the calculation and display.

Options Iterations...

  Lets you change the iteration depth.

### The Settings Menu

Settings Configure Key Bindings...

  Lets you change the hot keys used to switch between Mandlebrot and Julia sets and to save a picture.

### The Help Menu

&help.menu.documentation;

### The Toolbar

Open Params...

  Like File Open Params....

Zoom

  Like View Zoom... .

Save pic

  Like File Save pic... .

## Credits and License

&kfract;

Program copyright 1999-2001

- Uwe Thiem uwe@kde.org

Documentation copyright 1999-2001

- Uwe Thiem uwe@kde.org

- Pamela Roberts pam.roberts@btinternet.com (document maintainer)

&underFDL; &underGPL;