From 8392c8df34cb7d4edc0fb981d7857cc80dceaef5 Mon Sep 17 00:00:00 2001 From: Ed Ward Date: Sat, 12 Jun 2021 09:44:42 +0200 Subject: [PATCH] Updated the Grid & Snap page. --- include/grid-controls.html | 253 ++++++++++++++----------------------- 1 file changed, 98 insertions(+), 155 deletions(-) diff --git a/include/grid-controls.html b/include/grid-controls.html index fee3dd0..edcb0e8 100644 --- a/include/grid-controls.html +++ b/include/grid-controls.html @@ -1,194 +1,137 @@ -

What is “Snap” and “Grid”?

-
- Editor toolbar's grid +
+ Snap & Grid
- Editor toolbar's grid. + Snap & Grid
-

-“Snap” will cause drags and other mouse-driven operations to jump to -positions determined by the nearest snap setting. Snap can be set to -multiple options: markers, region start/ends, and the grid (those -are all enabled by default. change them in prefs). -

-

-Grid can be enabled, and it will draw lines at selected intervals; -which can be musical, like 16th notes, or can be timecode based -(minutes and seconds). You can leave the Grid enabled, but snap -disabled, if you just want to see the lines but not snap to them. -

-

-For example: if the Grid is set to “beats” and Snap-to-grid is -enabled, then any operations such as split, paste, or range-select -will happen exactly on a beat, according to the musical timeline and -tempo. -

-

-Alternatively, you can leave “Snap” enabled (so your mouse actions -can snap to Markers, or region edges) but disable the Grid. -

- -

A Warning, of sorts

- -

-The grid consist of lines running vertically in the edit canvas. If -you zoom too far out, you might see a coarser grid than you -expect. Ardour tries not to show “too many” or “too few” grid lines -depending on the zoom level. You might find that items snap in-between -the grid lines sometimes. That’s expected behavior. If you can’t see -or snap to the grid you’d like to use, you may have to zoom in or out. -

- -

About Snapping

+

Snap

- There are two ways to think about aligning material. The first and - most obvious one is where an object's position is clamped to the - snap positions. In Ardour, this is called absolute snap - and is commonly used when working with sampled material where audio - begins exactly at the beginning of a file, note or region. + Snap will cause region drags and other mouse-driven + operations to jump to positions determined by the nearest snap + setting when the mouse is close enough to this snap point. Snapping + is sometimes (improperly) referred to as magnetism.

-

- The second, relative snap, is used when an object's - position relative to the snap positions is important. In music, this - allows to move objects around without changing the "feel" (or - timing) of a performance. -

- -

- Absolute snap is the default method of snapping in Ardour. -

- -

- While dragging objects, pressing the absolute snap modifier key(s) switches - from absolute to relative snap. + The Snap options are set in the Preferences. Those + include the Snap Threshold which determines how close the mouse has + to be to a snap anchor to induce a snap, and the snap anchors + themselves, among:

+ +

Grid

- The snap can also be entirely disabled by using the snap modifier (see below). + The Grid helps visually placing items in time. It will draw + lines at selected intervals as chosen in the drop-down selector. + Musical grid settings (Bar to Sextuplets) obviously + depend on the tempo and meter, so + changing the tempo or meter will rescale the grid, while absolute grid + settings (Timecode, etc…) won't be affected.

-

- Note that in relative snap mode the reference point is taken to be the distance - to the nearest grid line. +

+ A word about time signature in this context: a time signature + consists of 2 numbers. The upper one determines how many beats are in + a bar, the lower one, what division of a note a beat represents (e.g. + : 4 stands for a quarter note). At e.g. 80 bpm, one beat lasts 1/80th min, so + 0.75 sec. If the time signature is 3/4, there are 3 beats in a bar so + a bar lasts for 3 × 0.75 = 2.25 sec. Choosing 1/8 Note + as the grid setting will draw grid lines every 0.75 ÷ 1/4 + × 1/8 = 0.375 sec.

- Note also that when an object lies exactly on a grid line, there will be no - difference between relative and absolute snap modes. + The grid density can be either based on musical time:

-

- The relative snap and snap modifiers (along with other modifier keys) may be set - in Edit > Preferences > User Interaction -

+

- For common use patterns, it is recommended to assign a unique key for one - snap modifier and two keys for the other in such a way that they share an - otherwise unused key. For example, the snap modifier may be chosen to be the - key and the relative snap modifier to be the and keys. + Or absolute time:

-

Snap Modes

+ -

- Using the above modifications, Ardour supports three different modes of snapping - to the grid: +

+The grid consist of lines running vertically in the edit canvas. When +zooming too far out, the grid can become too coarse. Ardour tries not +to show “too many” or “too few” grid lines depending on the zoom level, +based on the Approximate Grid/Ruler granularity (pixels) Preferences parameter. +As a consequence, when the Grid is in the Snap anchors, it is possible +that items snap in-between the grid lines sometimes. That’s expected +behavior.

- - - - - - - -
No Griddisables the grid. All objects move freely in this mode.
- In No Grid mode, the grid may be temporarily activated - by pressing the snap modifier (for absolute snap) or switch to relative snap - by pressing the relative snap modifier.
Gridactivates normal snapping. All positions of objects snap to the grid. (See - Grid Units below to change the grid). - Moving an object in "Grid"-mode, does not change its position until - the mouse is far enough for the object to reach the next grid line.
- To maintain an objects' position relative to the grid line, the "snap relative" - modifier can be used. When holding down this - modifier during a drag, the dragged object will jump while maintaining its - original distance from the line.
- New objects will always be created at grid - points.
- Holding down the snap modifier will disable the current grid - setting and allow moving the object freely.
Magneticis a less strict type of snapping. Objects can still be moved to any - position, but positions close to the relative or absolute grid points will snap. - In order to move an object very close to a snap point, it may be necessary to - zoom in to prevent snapping to that point, or to use the snap modifier to - disable snap completely.
As with Grid mode, the snap modifier will disable - snap completely while the absolute snap modifier will move the "notch" of - Magnetic snap to the grid lines.
- -

Syncing Regions to the Grid

+

Syncing Regions to the Grid

- By default, a region's beginning will be used as the reference for both types of - snapping, this behaviour can be changed by setting a sync point - in the region, by selecting the region(s) and pressing V. This will set the - sync point to the current edit point. + By default, a region's beginning will be used as the reference for + both types of snapping, this behaviour can be changed by setting a + sync point in the region, by selecting the region(s) and + pressing V. This will set the sync point to the current edit point.

-

Grid Units

+

Keyboard modifiers

- The selector next to the grid mode selector defines the size of the grid - elements. The grid can be set to several different units: + Snapping can be temporarily disabled by using a keyboard modifier while + editing, by default.

- - - - - - - - - - - - - - - - - - - - - - - - -
CD FramesA CD Frame is 1/75th of a second. Snapping to CD Frames (using absolute snap) can be used to avoid issues with CD track lengths.
Timecode Frames/Seconds/MinutesThe duration of a frame depends on the timecode settings for the session.
Seconds/MinutesThese are absolute time units, unaffected by sample rate or timecode settings
Beats/NSet the grid to units of 1/N beats, where N can be 128, 64, 32, 16, 8, 7, 6, 5, 4, 3, 2. The duration of a grid unit will depend on the tempo and meter in effect at that point in the timeline.
BeatsSet the grid to whole beats. The duration of a grid unit will depend on the tempo and meter in effect at that point in the timeline.
BarsSet the grid to whole bars. The duration of a grid unit will depend on the tempo and meter in effect at that point in the timeline.
MarkersThe grid lines are the markers.
Region StartsThe grid lines are constructed from region start points (see below).
Region EndsThe grid lines are constructed from region end points (see below).
Region SyncsThe grid lines are constructed from region sync points.
Region BoundsThe grid lines are constructed from region start or end points.
-

- To use Region starts/ends/syncs/bounds as snap choices, it is necessary to have either: + Snapping can also be temporarily set to relative, i.e. snapping will + occur relative to the current position of the dragged item. E.g. if + the Grid is in the Snap options, and the grid is set to + Bars, using this keyboard modifier while dragging will snap + at every bar relative to the region's beginning (or sync point) + instead of the absolute musical bars.

- - -

- If items are moved on a track, and only the current track is selected, then - snapping will only happen with other regions on the same track. This means - that enabling Edit > Preferences > Editor > Link - Selections of Regions and Tracks will make the "Region" grid unit - unusable. This option should not be used in conjunction with the use any of the - Region grid units. + The keyboard modifiers are defined in the Preferences.

-- 2.37.2