description of the Text entity properties
The Text entity is a leaf of the graphics entities hierarchy. This entity defines the parameters for string drawing
This property contains the handle of the parent. The parent of the
text entity should be of the type "Axes"
or
"Compound"
.
This property contains a vector with the children
of
the handle. However, text handles currently do not have any
children
.
This field contains the visible
property value for
the entity . It should be "on"
or "off"
.
By default, the text is visible, the value's property is "on"
.
If "off"
the text is not displayed on the screen.
the matrix containing the strings of the object. The rows of the matrix are displayed horizontally, and the columns vertically.
Vector [x,y,[z]]
setting the position of the pivot of the
text, in data units of the axes. By default, the pivot is set on the lower
left corner of the framing box of the block of text.
![]() | e = gce(); e.text_box=[0 0]; e.text_box_mode="centered"
centers the framing box on the pivot, so at the .data
position. |
This property sets the orientation of the block of text around its pivot, in clockwise degrees starting from the (0-right) direction (it is definitely not related to the font slanting).
Specifies how the strings are aligned in their columns. The value must be
"left"
,
"center"
or
"right"
. It applies to all columns.
Specifies the font used to display the character strings. This is a positive integer referencing one of the loaded fonts. Its value must be between 0, referencing the first font, and the number of loaded fonts minus one, referencing the last font. For more information see graphics_fonts.
This field contains the color used to display the characters of the text. Its value should be a color index (relative to the current colormap).
It is a scalar specifying the displayed characters size.
If fractional_font
property is "off"
only the integer part of the value is used.
For more information see graphics_fonts.
This property specify whether text is displayed using fractional font sizes.
Its value must be either "on"
or "off"
.
If "on"
the floating point value of font_size
is used for display and the font is anti-aliased. If "off"
only the integer part is used and the font is not smoothed.
"on"
: a box is drawn around the block of text,
made of a boxing frame or/and a filling background."on"
: If .box="on"
, the line
of the box is drawn (frame)."off"
: If .box="on"
, the box
is drawn without surrounding frame (only with its filling color).Color index of the line used to draw the edge of the box, when
.line_mode
is turned on. Its value refers to the current
colormap. -1
is black (default) and -2
is white whatever is the colormap.
This boolean property allows to draw or not the background of the box
when the box
property is "on"
.
If fill_mode
is "off"
, the
background of the box is not transparent.
This field contains the color used to fill the box around of the text. Its value should be a color index (relative to the current colormap).
A two dimensional vector specifying the size of a rectangle in user
coordinates. The rectangle is used when the text_box_mode property is set to
"centered"
or
"filled"
.
"off"
: the strings are displayed using the given
font, and .data
specifies the position of the
lower-left corner of the frame boxing the whole block of text."centered"
: the text is displayed in the middle
of the rectangle whose size is given by .text_box
."filled"
: the font size of the strings will be
expanded to fill the rectangle. Zooming updates the font size
accordingly.When using the "off"
or the "centered"
modes, the text size remains constant upon zooming. They are the best modes
to create annotations in a graph.
auto_dimensionning set to "off" is equivalent to text_box_mode set to "filled". If text_box_mode is "off" or "centered" then it implies that auto_dimensionning is "on".
This field contains the clip_state
property value for
the text. Its value should be :
"off"
this means that the text is not
clipped.
"clipgrf"
this means that the text is clipped
outside the Axes box.
"on"
this means that the text is clipped outside
the rectangle given by the property clip_box
.
This field contains the clip_box
property. Its value
should be an empty matrix if clip_state is "off" or the vector
[x,y,w,h
] (upper-left point width height).
This field can be use to store any scilab variable in the text data structure, and to retrieve it.
a=get("current_axes"); a.data_bounds=[0,0;1,1]; a.axes_visible = 'on' ; xstring(0.5,0.5,"Scilab is not esilaB",0,0) t = gce(); // get the handle of the newly created object t.font_foreground=6; // change font properties t.font_size=5; t.font_style=5; t.text=["SCILAB","is";"not","esilaB"] ; // change the text t.font_angle=90 ; // turn the strings t.text_box = [0,0] ; t.text_box_mode = 'centered' ; // the text is now centered on [0.5,0.5]. t.alignment = 'center' ; t.box = 'on' ; // draw a box around the text // Using LaTeX and MathML: mathml = "<mrow><mfrac><mrow> <mi>d</mi> <mi>y</mi> </mrow>" + .. "<mrow> <mi>d</mi> <mi>x</mi> </mrow>" + .. "</mfrac>" + .. "<mo> = </mo>" + .. "<mfrac> <mn>1</mn> <msup><mi>y</mi> <mn>2</mn> </msup> </mfrac>" + .. "</mrow>"; t.text=["SCILAB","can write LaTeX :","$\frac{abc}{xyz}$";"or","MathML :",mathml] ; | ![]() | ![]() |
Version | Description |
5.0 | .text_box , .text_box_mode ,
.alignment , and .auto_dimensionning
properties added. |
5.2 | LaTeX and MathML expressions are now supported. |