This page documents the visible properties returned by properties for a doublearrow annotation.
| Property | Action | Type and supported values |
|---|---|---|
| BeingDeleted | Nelson computes this value; graphics operations update it. | Type: text scalar or character row vector. Supported values: 'off', 'on'. |
| BusyAction | controls whether an interrupting callback is queued or canceled. | Type: text scalar or character row vector. Supported values: 'queue', 'cancel'. |
| ButtonDownFcn | runs when you click the object. | Type: callback value. Supported values: [], function handle, character vector, string scalar, or callback cell array. |
| Children | parenting operations update the vector. | Type: graphics object handle vector. Supported values: empty vector or child handles. |
| Color | updates rendered output on the next graphics refresh. | Type: color value. Supported values: 'red'/'r', 'green'/'g', 'blue'/'b', 'cyan'/'c', 'magenta'/'m', 'yellow'/'y', 'black'/'k', 'white'/'w', RGB triplet [r g b] with values in [0,1], or hexadecimal color '#RRGGBB'/'#RGB'. |
| ContextMenu | assigns the context menu displayed on right-click. | Type: graphics object handle scalar. Supported values: empty handle or a context menu object handle. |
| CreateFcn | runs when the object is created. | Type: callback value. Supported values: [], function handle, character vector, string scalar, or callback cell array. |
| DeleteFcn | runs when the object is deleted. | Type: callback value. Supported values: [], function handle, character vector, string scalar, or callback cell array. |
| HandleVisibility | controls whether the object handle is listed by handle searches. | Type: text scalar or character row vector. Supported values: 'on', 'callback', 'off'. |
| Head1Length | changes annotation arrow head length. | Type: numeric scalar. Supported values: positive finite scalar in points. |
| Head1Style | changes the first annotation arrow head shape. | Type: text keyword. Supported values: 'plain', 'ellipse', 'vback1', 'vback2', 'vback3', 'cback1', 'cback2', 'cback3', 'fourstar', 'rectangle', 'diamond', 'rose', 'hypocycloid', 'astroid', 'deltoid', or 'none'. |
| Head1Width | changes annotation arrow head width. | Type: numeric scalar. Supported values: positive finite scalar in points. |
| Head2Length | changes annotation arrow head length. | Type: numeric scalar. Supported values: positive finite scalar in points. |
| Head2Style | changes the second annotation arrow head shape. | Type: text keyword. Supported values: 'plain', 'ellipse', 'vback1', 'vback2', 'vback3', 'cback1', 'cback2', 'cback3', 'fourstar', 'rectangle', 'diamond', 'rose', 'hypocycloid', 'astroid', 'deltoid', or 'none'. |
| Head2Width | changes annotation arrow head width. | Type: numeric scalar. Supported values: positive finite scalar in points. |
| HitTest | controls whether the object can capture mouse clicks. | Type: text scalar or character row vector. Supported values: 'on', 'off'. |
| Interruptible | controls whether a running callback can be interrupted. | Type: text scalar or character row vector. Supported values: 'on', 'off'. |
| LineStyle | updates rendered output on the next graphics refresh. | Type: text scalar or character row vector. Supported values: '-', '--', ':', '-.', 'none'. |
| LineWidth | updates rendered output on the next graphics refresh. | Type: finite numeric scalar. Supported values: value greater than or equal to 0. |
| Parent | reparents the object and updates Children on the old and new parents. | Type: graphics object handle scalar. Supported values: a valid parent handle for the object class. |
| PickableParts | controls which parts of the object can capture mouse clicks. | Type: text scalar or character row vector. Supported values: 'visible', 'all', 'none'. |
| Position | updates annotation location and size; line-like annotations also update X and Y endpoints. | Type: four-element numeric vector. Supported values: [x y width height] for shape and textbox annotations, or [xstart ystart dx dy] for line-like annotations. |
| Selected | indicates whether the object is currently selected. | Type: text scalar or character row vector. Supported values: 'on', 'off'. |
| SelectionHighlight | controls whether selection handles are drawn when the object is selected. | Type: text scalar or character row vector. Supported values: 'on', 'off'. |
| Tag | updates the stored object state. | Type: text scalar or character row vector. Supported values: empty text or an object identifier. |
| Type | Nelson computes this value; graphics operations update it. | Type: text scalar or character row vector. Supported values: read-only object type name, for example 'figure', 'axes', 'line', or 'scatter'. |
| Units | changes how annotation position values are interpreted and converts Position, X, and Y. | Type: text keyword. Supported values: 'normalized', 'inches', 'centimeters', 'characters', 'points', or 'pixels'. |
| UserData | updates the stored object state. | Type: Nelson array. Supported values: any Nelson value, including [], numeric arrays, text, cells, structures, or handles. |
| Visible | updates rendered output on the next graphics refresh. | Type: text scalar or character row vector. Supported values: 'on', 'off'. |
| X | updates annotation horizontal endpoints and recomputes the annotation position. | Type: two-element numeric vector. Supported values: finite normalized or unit-specific x coordinates [xstart xend] for line-like annotations. |
| Y | updates annotation vertical endpoints and recomputes the annotation position. | Type: two-element numeric vector. Supported values: finite normalized or unit-specific y coordinates [ystart yend] for line-like annotations. |
f = figure('Visible', 'off');
h = annotation(f, 'doublearrow');
names = properties(h);
close(f)