@physletName|Ripple
@code|ripple.Ripple.class
@archive|Ripple4_.jar,STools4.jar
@appletSize|300|300
@embedParam|b|ShowControls|false|show controls:
@embedParam|i|FPS|10|animation frames per second:
@embedParam|i|PixPerUnit|10|pixels per unit:
@embedParam|d|wavelength|2.0|on-screen grid unit:
@embedParam|b|ShowIntensity|false|show intensity:
@embedParam|s|Caption|Ripple Tank|caption:
addObject|id
#FF707D
>>> tt >>>
A point source.
>>> tt >>>
Add source
s|name|source|HIDDEN
$
.|d|x|0|x:
.|d|y|0|y:
.|d|amp|1.0|amp:
.|d|phase|0|phase:
.|i|r||radius:
addObject|id
#FF707D
>>> tt >>>
A static shape.
You can use the ID to change a shape's properties with an appropriate command.- box - a hollow rectangle, centre at (x,y)
specify: height and width in pixels (and thickness of border in pixels - but this feature doesn't work yet) - rectangle - a filled rectangle, centre at (x,y)
specify: height and width in pixels - shell - a hollow circle, centre at (x,y)
specify: radius in pixels - rectangle - a filled circle lower left corner at (x,y)
specify: radius in pixels
>>> tt >>>
Add shape
s|flag|circle;rectangle;box;shell;cursor|shape:
$
.|d|x|1.0|x:
.|d|y|0.5|y:
.|i|w||width:
.|i|h||heigth:
.|i|r||radius:
addObject|id
#FF707D
>>> tt >>>
Display a text string at position x,y
>>> tt >>>
Add text
s|name|text|HIDDEN
$
.|d|x|0|x:
.|d|y|0|y:
.|s|text|some text|text:
addObject|id
#FF707D
>>> tt >>>
A arrow with horizontal, h, and vertical, v, components.
>>> tt >>>
Add arrow
s|name|arrow|HIDDEN
$
.|d|x|0.0|x:
.|d|y|0.0|y:
.|d|h|1.0|h:
.|d|v|1.0|v:
.|d|s||s:
addObject|id
#FF707D
>>> tt >>>
An image file.
>>> tt >>>
Add image
s|name|image|HIDDEN
$
.|d|x|3.0|x:
.|d|y|0.5|y:
.|s|file|smile.gif|file:
addObject|id
#FF707D
>>> tt >>>
Create a constraint. The constraint id can be used with any object to limit the area within which the objected can be dragged.
(See assign constraint.)
>>> tt >>>
Add constraint
s|name|constraint|HIDDEN
$
.|d|xmin|-1.0|xmin:
.|d|xmax|1.0|xmax:
.|d|ymin|-1.0|ymin:
.|d|ymax|1.0|ymax:
setConstraint|
#FFFF70
>>> tt >>>
Restrict the possible movements of an object to a region that is specified as a "constraint" in a separate command.
>>> tt >>>
Assign constraint
o|id||This object:
o|constraintid||is restricted by this constraint (as defined above):
setDragable|
#FFFF99
>>> tt >>>
Make an object dragable or not dragable. Objects are dragable by default.
>>> tt >>>
make dragable
o|id||This object:
b|drag|true|is dragable:
setVisibility|
#FFFF99
>>> tt >>>
Makes an object visible of invisible. The object is not destroyed; it is hidden and can be made visible at any time.
>>> tt >>>
Visibility
o|id||This object:
b|show|true|is visible:
setRGB|
#FFFF99
>>> tt >>>
Set the color of an object using a mixture of red (r), green (g), and blue (b). Primary colors are in the range 0...255.
>>> tt >>>
Color
o|id||This object:
i|r|255|has color components r:
i|g|0|g:
i|b|0|b:
deleteAll|
#FFFFFF
>>> tt >>>
Delete all sources and geometric shapes.
>>> tt >>>
deleteAll
setDefault|
#CCFFCC
>>> tt >>>
Remove all objects and set default conditions. This method is usually called at the beginning of a script.
>>> tt >>>
setDefault
forward|
#FFCCC
>>> tt >>>
Start the animation clock.
>>> tt >>>
forward
pause|
#FFCCC
>>> tt >>>
Pause the animation clock.
>>> tt >>>
pause