Provides notification when the displayed area has changed.
For Graph etc, if calculation data is processed and cached, if the
display area scrolls, if the resolution changes etc, there are cases
where it is necessary to get rid of the cache.
In such a case, when this method is called it gets rid of the cache.
called after instance tree was constructed, getNode, getLink here,
インスタンスツリー作成後に呼び出される, 親に自分と同じ名前のNodeがあったら、自分自身をリンクと見なし、
自分の値（リンク先を表す文字列）を引数に親のgetLinkを呼んでリンクを張ります
Sets the printing area intrinsic to the printer.
Before printing, please set the printable area information intrinsic to
the printer, which can be obtained from
javax.print.attribute.standard.MediaPrintableArea.
Sets the printing area which was set with a dialog.
Before printing, please set the printable area (Imageable) information,
which can be obtained from java.awt.print.PageFormat.
should be placed into the xml file of the parent node
from which one wants to get the childrens' parameters
親Reactorの持つ全てのVariableとReactorの値をcsv形式で書き出す
Returns a Color object, from a string which shows the colour.
The string which displays the colour has the 2 patterns below
#RRGGBB : Specifies each R,G,B with base 16 numbers
{@.en RED, WHITE, ...
Returns a Color object, from a string which shows the colour.
The string which displays the colour has the 2 patterns below
#RRGGBB : Specifies each R,G,B with base 16 numbers
{@.en RED, WHITE, ...