class RVG::Tspan <
TextBase
Table of Contents
class methods
instance methods
shared methods
In addition to the methods listed above, class
RVG::Tspan also implements the styles method.
class methods
new
RVG::Tspan.new(text=nil,
x=0, y=0) [
{ |tspan| ...} ] -> aTspan
Description
This method may be invoked indirectly via the tspan method in
RVG::Text.
Tspan objects are containers, so this method yields to a
block if one is present. The only objects that a tspan can
contain are other tspans. Styles defined on a tspan propogate
to any tspans contained within it.
Arguments
All arguments are optional.
- text
- A string. If present, this string is drawn at the current
text position. By default the string is positioned with the
lower-left corner of the first glyph at the current text
position. Use the :text_anchor style to
override this behavior. After the string is rendered, the
current text position is moved to the end of the string.
- x, y
- Specify a new current text position within the current
user coordinate system.
Examples
instance methods
d
tspan.d(dx[, dy=0]) [
{ |self| ...} ] -> self
Description
The dx and dy arguments are added to the the current text
position to form a new current text position. Yields to a block
if one is present.
Arguments
- dx, dy
- The distance, in the user coordinate system, to be added
to the current text position.
Example
Returns
self
rotate
tspan.rotate(degrees) [ { |self| ...}
] -> self
Description
Rotates the text about the current text position by the
specified number of degrees. Yields to
a block if one is present.
Arguments
- degrees
- The amount of rotation
Example
Returns
self
tspan
tspan.tspan(string=0, x=nil,
y=0) [ { |tspan|
...} ] -> aTspan
Description
Calls RVG::Tspan.new to construct a tspan
and adds it to the tspan. Yields to a block if one is present,
passing the new tspan as an argument. Styles defined on the
container tspan propogate to the contained tspan.
Arguments
- string
- A text string.
- x, y
- A new initial text position
Returns
The new tspan, so other RVG::Tspan methods can
be chained to it.