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15.3.3.6 Text Properties

Properties of text objects (see text):

backgroundcolor: colorspec, def. "none"

Color of the background area. See colorspec.

beingdeleted: {"off"} | "on"

busyaction: "cancel" | {"queue"}

Define how Octave handles the execution of this object’s callback properties when it is unable to interrupt another object’s executing callback. This is only relevant when the currently executing callback object has its interruptible property set to "off". The busyaction property of the interrupting callback object indicates whether the interrupting callback is queued ("queue" (default)) or discarded ("cancel"). See Callbacks section.

buttondownfcn: string | function handle, def. [](0x0)

For information on how to write graphics listener functions see Callbacks section.

children (read-only): vector of graphics handles, def. [](0x1)

children is unused.

clipping: "off" | {"on"}

If clipping is "on", the text is clipped in its parent axes limits.

color: colorspec, def. [0 0 0]

Color of the text. See colorspec.

contextmenu: graphics handle, def. [](0x0)

Graphics handle of the uicontextmenu object that is currently associated to this text object.

createfcn: string | function handle, def. [](0x0)

Callback function executed immediately after text has been created. Function is set by using default property on root object, e.g., set (groot, "defaulttextcreatefcn", 'disp ("text created!")').

For information on how to write graphics listener functions see Callbacks section.

deletefcn: string | function handle, def. [](0x0)

Callback function executed immediately before text is deleted.

For information on how to write graphics listener functions see Callbacks section.

edgecolor: colorspec, def. "none"

Color of the outline of the background area. See colorspec.

editing: {"off"} | "on"

editing is unused.

extent (read-only): four-element vector

Vector [x0 y0 width height] indicating the size and location of the text string.

fontangle: "italic" | {"normal"}

Control whether the font is italic or normal.

fontname: string, def. "*"

Name of font used for text rendering. When setting this property, the text rendering engine will search for a matching font in your system. If none is found then text is rendered using a default sans serif font (same as the default "*" value).

Programming Note: On systems that don’t use FontConfig natively (all but Linux), the font cache is built when Octave is installed. You will need to run system ("fc-cache -fv") manually after installing new fonts.

fontsize: scalar, def. 10

Size of the font used for text rendering. See fontunits property.

fontsmoothing: "off" | {"on"}

Control whether anti-aliasing is used when rendering text.

fontunits: "centimeters" | "inches" | "normalized" | "pixels" | {"points"}

Units used to interpret the "fontsize" property.

fontweight: "bold" | {"normal"}

Control the variant of the base font used for text rendering.

handlevisibility: "callback" | "off" | {"on"}

If handlevisibility is "off", the text’s handle is not visible in its parent’s "children" property.

hittest: "off" | {"on"}

Specify whether text processes mouse events or passes them to ancestors of the object. When enabled, the object may respond to mouse clicks by evaluating the "buttondownfcn", showing the uicontextmenu, and eventually becoming the root "currentobject". This property is only relevant when the object can accept mouse clicks which is determined by the "pickableparts" property. See pickableparts property.

horizontalalignment: "center" | {"left"} | "right"

interpreter: "latex" | "none" | {"tex"}

Control the way the "string" property is interpreted. See Use of the interpreter property.

interruptible: "off" | {"on"}

Specify whether this object’s callback functions may be interrupted by other callbacks. By default interruptible is "on" and callbacks that make use of drawnow, figure, waitfor, getframe or pause functions are eventually interrupted. See Callbacks section.

linestyle: {"-"} | "--" | "-." | ":" | "none"

Style of the outline. See Line Styles.

linewidth: scalar, def. 0.5000

Width of the outline.

margin: scalar, def. 3

Margins between the borders of the background area and the texts. The value is currently interpreted as pixels, regardless of the "fontunits" property.

parent: graphics handle

Handle of the parent graphics object.

pickableparts: "all" | "none" | {"visible"}

Specify whether text will accept mouse clicks. By default, pickableparts is "visible" and only visible parts of the text or its children may react to mouse clicks. When pickableparts is "all" both visible and invisible parts (or children) may react to mouse clicks. When pickableparts is "none" mouse clicks on the object are ignored and transmitted to any objects underneath this one. When an object is configured to accept mouse clicks the "hittest" property will determine how they are processed. See hittest property.

position: three-element vector, def. [0 0 0]

Vector [X0 Y0 Z0] where X0, Y0, and Z0 indicate the position of the text anchor as defined by verticalalignment and horizontalalignment.

rotation: scalar, def. 0

The angle of rotation for the displayed text, measured in degrees.

selected: {"off"} | "on"

selectionhighlight: "off" | {"on"}

string: string, def. ""

The text object string content.

tag: string, def. ""

A user-defined string to label the graphics object.

type (read-only): string

Class name of the graphics object. type is always "text"

units: "centimeters" | {"data"} | "inches" | "normalized" | "pixels" | "points"

userdata: Any Octave data, def. [](0x0)

User-defined data to associate with the graphics object.

verticalalignment: "baseline" | "bottom" | "cap" | {"middle"} | "top"

visible: "off" | {"on"}

If visible is "off", the text is not rendered on screen.