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Spring

A spring is a 2D drawing element that displays a simple icon for a spring at given coordinates of the parent drawing or plotting panel. The shape is drawn relative (see the Position property) to the given coordinates with the size specified in each direction. The element can also be applied a rotation and a scale factor for each coordinate.

 

Properties

Spring2D  
Position and Size  
Name Description Values accepted Default
Pos X The X coordinate for the element. A constant or variable of type double or int.
Pos Y The Y coordinate for the element. A constant or variable of type double or int.
Position [] The double[] array with the coordinates of the shape. A double array.
Size X The size of the element in the X direction. A constant or variable of type double or int.
Size Y The size of the element in the Y direction. A constant or variable of type double or int.
Size [] The double[] array with the size of the shape in each direction. A double array.
Scale X The scale factor for the element in the X direction. A constant or variable of type double or int.
Scale Y The scale factor for the element in the Y direction. A constant or variable of type double or int.
Transform The transformation to apply to this element. Use the editor provided or read more About 2D transformations.
Visibility and Interaction  
Name Description Values accepted Default
Visible The visibility of the element. A boolean variable or one of the constants true or false.
Measured Whether the element affects its parent panel’s autoscaling. A boolean variable or one of the constants true or false.
Draggable Whether the element can be moved. A boolean variable or one of the constants true or false.
Resizable Whether the element can be resized. A boolean variable or one of the constants true or false.
Drag Group Whether dragging the element affects its group. A boolean variable or one of the constants true or false.
Resize Group Whether resizing the element affects its group. A boolean variable or one of the constants true or false.
Sensitivity The size of the hot spot (in pixels). A constant or variable of type int, 0 makes the full particle the hot spot.
On Press The action to invoke when the element is pressed. The Java code to invoke for the action.
On Drag The action to invoke when the element is dragged. The Java code to invoke for the action.
On Release The action to invoke when the element is released. The Java code to invoke for the action.
On Enter The action to invoke when the mouse enters the element. The Java code to invoke for the action.
On Exit The action to invoke when the mouse leaves the element. The Java code to invoke for the action.
Graphical Aspect  
Name Description Values accepted Default
Radius The radius of the element. A constant or variable of type double or int.
Solenoid The displacement that makes it look as a solenoid. A constant or variable of type double or int.
Thin Extremes Whether to draw the spring with thin extremes. A boolean variable or one of the constants true or false.
Loops The number of the loops for the spring. A constant or variable of type int.
Points/Loops The number of points in each loop of the spring. A constant or variable of type int.
Line Color The color used for the lines of the element. Use the editor provided or read about colors.
Line Width The thickness for the lines of the element. A constant or variable of type double or int indicates the thickness. 1

 

Object wrapped

 

The object wrapped by this element is of the class org.opensourcephysics.displayejs.InteractiveSpring. The class has been designed to control all of its features through properties, so there is no need to use directly any of the object methods.


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Page last modified on October 23, 2010, at 12:24 AM