# The KFract Handbook

Uwe
Thiem

    uwe@uwix.alt.na

13/06/1999
0.01.02

This Handbook describes KFract Version 0.1.2

KDE
graphics
fractal

## Introduction

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 Xfractint. But it's much easier to use.

The code is a mess and reflects my stage of learning Qt und KDE. But it works. ;-)

Please feel free to contact me:

Uwe Thiem <uwe@uwix.alt.na>

## Onscreen Fundamentals

### Mouse functions

Left mouse button

  Left mouse button let you draw a rectangle which will become the next picture. The center of the rectangle will be the center of the new picture. X/Y ratio will be adapted to fit into the window.

Middle mouse button

  Middle mouse button zooms in.

Right mouse button

  Right mouse button zooms out.

### The File Menu

Load params...

  Loads a by KFract generated parameter file and calculates the picture.

Save params...

  Saves the parameters of the current pictures. This file can be loaded later in order to re-calculate the picture. It consists of plain ASCII and can be exchanged emong different machines of even different architectures as long as KDE is installed.

Save pic...

  Saves current picture as BMP. Sorry, no GIF support so far.

Quit

  Well, here you leave Kfract.

### The Types Menu

Each entry switches to the displayed fractal type. So far implemented:

Mandelbrot

  Switches to mandelbrot set. Parameters (like maximal iteration depth, co-ordinates, width,...) can be set.

Julia

  Switches to julia set. Parameters (like maximal iteration depth, co-ordinates, width,...) can be set.

### The Options Menu

Max. iteration

  Maximal iteration depth can be set.

Colour scheme

  Here you switch between 2 different colour schemes.

Colour cycling

  Not implemented yet.

Zoom factor

  The factors for zoom in and zoom out can be set.

### The Help Menu

Help

  Shows this help page. ;-)

About

  Pops up an info box with some information about this program and it's author.

### The Toolbar

Open

  Like File->Load params.

Save as parameter file

  Like File->Save params.

Save picture

  Like File->Save pic

Zoom in

  Zooms in like middle mouse button (MMB) except that the center of the actual picture becomes the center of the new picture.

Zoom out

  Zooms out like right mouse button (RMB) except that the center of the actual picture becomes the center of the new picture.

Home

  Sets all relevant parameters of the actual type to its defaults and re-calculates the set. Parameters which are not relevant to the actual type (like colour scheme) stay untouched. If you've got lost here you'll find back.