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Trim 420 Legend

	Action	Button	Menu
Hull points
	faFixpointA0	A0	Pütting Left
	faFixpointB0	B0	Pütting Right
	faFixpointC0	C0	Forestay attachment point at hull
	faFixpointD0	D0	Mast foot
	faFixpointE0	E0	Attachment point of Controller at hull
	faFixpointF0	F0	Measurement point at stern
Rig points
	faFixpointA	A	Spreader end point (left)
	faFixpointB	B	Spreader end point (right)
	faFixpointC	C	Attachment point of forestay and shrouds at mast
	faFixpointD	D	Spreader attachment point at mast
	faFixpointE	E	Attachment point of Controller at mast
	faFixpointF	F	Mast top (main sail halyard fitting)
Model params
	faVorstag	V0	Forestay
	faWante	WA	Shroud
	faWanteOben	WO	Shroud upper part (Wante Oben)
	faWinkel	Wi	Angle of mast (lower part)
	faSalingH	SH	Spreader height
	faSalingA	SA	Spreader distance (Abstand)
	faSalingL	SL	Spreader length
	faSalingW	SW	Spreader angle (Winkel)
	faController	Co	Controller
	faMastfallVorlauf	MV	Mastfall = F0F - Mastfallvorlauf
Output params
	faMastfallF0C	F0C	Distance F0 - C
	faBiegung	Bie	Displacement (Bending) of mast in point D
View params
	faPan	Pan	panning of the graph (offset x, y)
Memory slots
	faTrimm0	T0	Memory for base trim 0
	faTrimm1	T1	Memory for trim 1
	faTrimm2	T2	trim 2
	faTrimm3	T3	trim 3
	faTrimm4	T4	trim 4
	faTrimm5	T5	trim 5
	faTrimm6	T6	trim 6
	fa420	420	example-trim 420 (trim 7)
	faLogo	Logo	Logo-trim (trim 8)
Memory operations
	faMemoryBtn	M	remember current state
	faMemoryRecallBtn	MR	return to remembered state
	faUpdateTrimm0	ct0	override trim 0 in main memory
	faCopyAndPaste	cap	override current trim in memory
	faCopy	cti	Copy Trimm-Item to the clipboard
	faPaste	pti	Paste from clipboard, Trimm-Item or Trimm-File
	faCopyTrimmFile	ctf	Copy Trimm-File to clipboard
	faReadTrimmFile	rtf	Read Trimm-File if present
	faSaveTrimmFile	stf	Write Trimm-File-Auto
			Read Trimm-File-Auto (sometimes automatically at program startup)
Spreader type
	faSalingTypFest	fs	fixed Spreader-Tetrahedron (normal case)
	faSalingTypDrehbar	ds	pivoting spreaders (Drehbare Salinge)
	faSalingTypOhne	os	without spreaders (like Cadet class)
Display
	faToggleTrimmData	data	Data display on/off
	faToggleTrimmDiff	diff	Difference display on/off
	faToggleLanguage	lan	Language toggle
Navigation
	faActionPageM	page number	button in top left corner
	faActionPageP	page number	Button in top right corner
	faActionPageE	PE	Page Escape
	faActionPageX	LP	Last Page
Background and Text
	faCycleColorSchemeP	c+	color scheme plus
	faCycleColorSchemeM	c-	color scheme minus
Options
	faDemo	mod	toggle Modus between Demo/Pro
	faRggBogen	B	draw mast as Bogen or as Zweischlag
	faRggHull	HL	display of hull on/off
	faRggKoppel	Ko	display of Koppelkurve on/off
Touch bar
		upper	Rotation Z
		lower	Zoom
		left	Parameter +/- 10
		right	Parameter +/- 1

You can choose Hull points or Rig points as zero point, the center point for rotations, the point around which the the graph can be rotated.

Hull points (coordinates) are fixed values (read from storage) and - with exception of D0 (D0X) - are not directly editable within the program.

Rig points are computed values. (Just the mast-length values will be loaded/read.)

The selection of the Model parameter is of course an important selection. Forestay (VO), Shroud (WA), Spreader Height (SH) and Spreader Distance(SA) are most often used. Only Input-Parameters are listed under Model params. The current value of a parameter can be changed with the mouse wheel or using the touch bar.

Output params are similar to Model-Parameters. But cannot be directly adjusted at the real boat. Attention: When you change these parameter values - Forestay and Shroud will change to fit.

Under View params only Pan is listed. Other view-parameters like Zoom and Rotations don’t need to be selected, because they are active all the time. And - as mentioned above - the pivot point for rotations of the model can be selected with the buttons for rig or hull points.

The Memory slots T1 through to T6 have been added only recently. And reading and writing of data is under review.

The selection of the Spreader type has also been added back into the app recently. This is important for the Cadet class. Supporting the Cadet with a built in memory slot of example data may be coming soon. It was not necessary for the 420, where spreader type fixed is the default.

Navigation is about the selection of the current page of buttons. Not all buttons fit on one page, so several pages are needed. On the desktop you can use keyboard shortcuts, which will make navigation easier or even unnecessary.

The color of background and text can be changed too. I hope you will find a combination that looks decent.

The demo mode listed under Options needs explanation. In Demo mode you are only concerned with the change of one parameter. When selecting a different parameter, the state of the model will be automatically reset. This is not the case in Pro mode. Other names for Demo/Pro would be Rookie/Expert. Important is only that you know what it means. If you find yourself in Demo mode, it is probably necessary to change over to Pro mode (with click on button mod), to continue ‘work’.

The Hull can be shown or hidden. Normally you do not need to show it. But it is useful when first looking at the graph. As of today there is only one hull model - of the 420 class - included in the app. You could help out with providing better data for other classes.

The Touch bar is used to change the value of the current parameter on the touch screen. This is what it is all about! The desktop application uses the wheel of the mouse or the keyboard But with the touch screen it can be done as well. You will need to find out what the touch bar looks like, and how it works. Tip: Try to touch the gray area between the buttons gently. (Not everyone can master it. You have to do it slowly, and at the same time watch the display of the value of the current parameter change.)

Rotation about Z-axis and Zoom do not work as expected on a touch screen device. Instead, you have to use the upper or lower touch bar for this. However, you can control the Rotation X / Y directly with a touch move over the center of the screen - with just one finger, or by dragging the mouse.

It is entirely possible that the concept of operation will change in the future. It may perhaps work exactly as you would expect. It depends to some extent on improved capability of the tools I use. Until then I hope you can cope with the touch bar.