Geomorph 0.13, TODO file
------------------------------

Updated September the 20th, 2003.

Priority can change, depending on the users' feedback.

High priority
	-	Tutorials, user guide, reference guide
	-	Pen with continuous stroke
	-	Test a new generation algorithm: eroded terrain from a branching structure
	-	Conversion to GTK 2.x

Average priority
	-	Add simple square cropping / scaling
	-	Water erosion:
		-	Improve the algorithm by considering the addition of the drops
			(reproduce huge flows like rivers)
	-	Add new transforms:
		-	Cracks (mud)
		-	Faults
	-	Giant causeway (honeycomb):
		-	Randomize placement of the vertices
	-	Terraces:
		-	Allow to change the normal of the stratification
			(rotate the transformation on both axis of the ground plane)
	-	Technical documentation
	-	Display a histogram for the info icon
	-	Automatically refresh document lists in subdialogs
	-	Add selection masks / tools
	-	Add copy / cut / paste
	-	Povray: allow to choose (render from) INI files
	-	Waves:
		-	Add circular waves
		-	For all waves, propose a turbulence factor (warp or randomise the waves)
		-	Propose an amplitude gradient (should be radial for circular waves),
			linear or quadratic or else
	-	Implement a navigator for the undo/redo stack

Low priority
	-	Allow scaling and cropping when reading a file.
	-	Migrate the options file to XML.
	-	Use an histogram to facilitate interaction in the brigthness / contrast subdialog.
	-	Show erosion progressively
	-	Develop tools for managing Povray INI files.
	-	Control default hiding / showing of subdialogs in "geomorphrc"
	-	Add a "recent files" list in the menu.
	-	Propose a "mirror tiling"
	-	Test other subdivision algorithms (triangular, circular, hexagonal)

Bugs
	-	Executing Povray freezes Geomorph when the Povray program doesn't exist
	-	Swapping between transform tools and pen tools, when no documents are open, segfaults
	-	Closing a document window which is not on top segfaults

Things to check, inconsitencies, features not working
	-	Waves: the vertical randomization doesn't seem to work
	-	Translate: the document drawing area seems to be refreshed twice
	-	Placement of the "Apply" or "Accept" buttons:
		should they be always at the window's bottom?
	-	Check if the hide/show arrows are always correctly toggled,
		when a dialog is displayed for the first time.
	-	Wrong document size displayed during creation after this sequence:
		(1)	Create a 512x512 doc.
		(2)	Open a 256x256 doc.
		(3)	Create a new document - size in the creation window is 512,
			but the document window shows 256
	-	Wording, in surface sum generator: slope == level?
	-	Check if these options should be added in "geomorphrc":
		-	Draw pen wrap on/off
		-	Default pen level
		-	Default pen merge operator (+/x)
	-	Problem with this sequence:
		-	Save a new document, or read a document already saved
		-	"Save as"
		-	Cancel "Save as"
		-	"Save" -> Geomorph ask for a document name - it should use the first one!
	-	In document lists in tools subdialogs, sometimes document names are not unique
	-	Forbid size change of the menu window
	-	"Undo" after unchecking "tiling" (wrap) in the document window does not check "tiling"
		(but the internal value of "tiling" is TRUE).
	-	The accept callback should remove the tiling parameter after some processes
		like rotate, if not a multiple of 90 degrees, or honeycombs.
	-	Design a way to see or temporarily boost the very high frequencies
		(amplitudes less than 256 on an 0-65535 scale)
	-	Check if draw_hf_free frees all the memory it should free
	-	Check merging with "subtract" in the "smooth" tool dialog