home *** CD-ROM | disk | FTP | other *** search
- Copyright (C) 1991 The Stone Soup Group. FRACTINT for
- Presentation Manager may be freely copied and distributed,
- but may not be sold.
-
- GIF and "Graphics Interchange Format" are trademarks of Compuserve
- Incorporated, an H&R Block Company.
-
-
- How to operate Mandelbrot Investigator.
-
- The Mandelbrot Investigator operates from the menu via either
- a mouse or a keyboard.
- However, zooming and panning using either View/Pan Center
- or the View/Zoom In/Zoom Out works only with a mouse.
- To change the are of the fractal viewed using the keyboard,
- change the extents and/or center using Options/Extents.
-
- The main controls are the fifth and sixth menu bar entries.
- The fifth entry switches between "Halt!" and "Freeze!".
- When "Halt!" is displayed, it implies that a fractal is being
- calculated and drawn, and if you want to stop the calculation,
- select "Halt!" and it will stop shortly.
- When "Freeze!" is displayed, a calculation is not in progress
- and selecting "Freeze!" will cause a calculation to not automatically
- start, as it would after selecting values from either the
- View, Options, or File pull-downs, but will wait for an explicit "Go!" menu
- selection.
-
- To see a smaller part of the fractal, blown up to full screen size,
- use selections from the View/Zoom In or View/Zoom Out menu.
- View changing with the mouse
- is Object/Action oriented, as the IBM SAA guidelines
- expect.
- Zoom In or Zoom Out select magnification or reduction by either
- a fixed or selectable amount around the current center of the display.
- Click the left mouse button to display cross-hairs.
- View/Pan Center then pans to this point.
- To Zoom to a window, click and drag the left mouse button to outline
- a rectangle.
- Then either pick View/Zoom In/to Window to zoom in, or
- View/Zoom Out/to Window to zoom out.
-
- The following selections are on the File menu.
- The File/New selection allows you to select a fractal type from a
- dialog box.
- File/Open reads in a .GIF file (saved by one of the FRACTINT family
- programs) to view or continue calculating,
- or a OS/2 Presentation Manager (BMP) or Windows 3 Bitmap (Win3 BMP).
- A .GIF file created by other than a FRACTINT family program,
- or a bitmap, will
- be restored as a PLASMA fractal, which is not zoomable or otherwise
- editable.
- The program distinguishes between OS/2 Presentation Manager and
- Windows 3 Bitmaps when loading, so you may actually read in
- either kind by selecting either BMP or Win3 BMP.
- File/Save as writes a .GIF file,
- OS/2 Presentation Manager Bitmap, or Windows 3 Bitmap
- of the current fractal and screen
- display.
- The file format for the Bitmap file will be determined
- by your selection of BMP or Win3 BMP (some programs
- will only read one or the other).
- File/Print prints either to the default Presentation Manger printer,
- or, via direct code, to an HP PaintJet.
- File/Read Color Map reads a FRACTINT family .MAP file and makes it
- available as the User Palette selection in the Options/Set Palette
- dialog, discussed below.
- File/Write Color Map writes the palette values currently selected
- by the Options/Set Palette dialog to a FRACTINT family
- .MAP file.
-
- The Edit menu allows access to the OS/2 Presentation Manager Clipboard.
- Edit/Copy Bmp will place a copy of the current screen image
- on the PM Clipboard as a Bitmap.
- Color information is transmitted as part of the bitmap, but
- the fractal description information (that would be saved
- as part of a FRACTINT .GIF file) is not.
- This option is available only when a fractal is currently
- not being calculated, and will be grayed-out
- if it cannot be .
- Edit/Paste, brings a bitmap off the PM Clipboard back onto
- the screen.
- As no fractal description information is available, the
- display becomes a PLASMA fractal.
- Edit/Paste is available only if a calculation is not
- currently in progress, and there is actually a
- bitmap on the Clipboard.
- Edit/Clear ClipBoard causes Fractint for PM to discard
- any current contents of the PM Clipboard, whatever it
- is and from whatever source is came from.
- The entries Edit/Text on ClipBoard, Edit/Bitmap on ClipBoard,
- and Edit/MetaFile on ClipBoard are not grayed if true -
- they represent exploratory code left in for the time being
- and give an indication of the current state of the PM ClipBoard.
- They don't do anything if selected.
-
- The following selections are on the Options menu.
- The Options/Swap to Mandel or Options/Swap to Julia allows you to switch
- between related Mandelbrot and Julia sets if the specific fractal
- allows that.
- The Options/Set Extents displays and allows modification of the X and Y
- extents of the complex plane (the numbers that the fractals are
- defined and calculated on) that the display window represents.
- This is a numeric display of the changes made by the View menu.
- The Options/Set Parameters displays and allows modification to various
- numeric parameters that each fractal calculation contains.
- The meaning and effects of these parameters can be determined
- from the discussion of the specific fractal in the
- Help/Fractal Types display.
- The Options/Set Options selects various calculation options, such as
- integer or floating point math, number of passes, and calculation
- depth (max iterations).
- The Options/Reset Above will, when in the Freeze state, allow
- the cancelation of changes made by one of the above options,
- restoring the "current" calculation options from what is currently
- displayed.
- The Options/Set Image Settings changes the number and color depth of
- the pixels being calculated.
- The colors can be 2 (black and white), 16 color, or 256 color.
- The pixel dimensions largely affect the resolution of a future saved
- or printed image, as whatever is being calculated will be compressed
- or expanded as needed to fit in the display window.
- The Options/Set Palette selects a dialog giving various palette
- options.
- The Black and White, 16-color VGA, 256-color VGA, and Physical palette
- are fixed by the program or your hardware.
- The User Loaded Palette selection will be enabled when sucessfully
- loaded by an external palette, such as reading a Color Map via
- the File/Read Color Map menu selection, or by the palette contained
- in a loaded .GIF file.
-
- At any time additional Help can be displayed.
- The Help/Introduction display describes the basics of fractals
- and the calculation engine this program uses.
- The Help/Fractal Types describes the fractal types displayable
- by this program.
-
- When you get tired of consuming computer resources looking
- at pretty pictures, the File/Exit selection will shut down the
- program.
-
- Have loads of fun!!
-
- Donald P. Egen [CIS 73507,3143]