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Information Foreword What is EJS? Demos/Examples Credits Links Webcasts Installation Download & Install EJS Workspaces Running EJS Conditions of Use Documentation EJS Console EJS Interface Description Panel Model Panel View Panel Deployment Elements Reference User Feedback English | Spanish | ? View Edit History Print PDF ## Image (old) An interactive image. An image is a 2D element that displays a simple image, read from disk, at given coordinates of the parent drawing or plotting panel. ## Object wrapped The object wrapped by this element is of the class org.opensourcephysics.displayejs.Image. 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. ## Useful methods (This list deliberately left empty.) ## Properties
Image
Position and Size
Name | Description | Values accepted | Default
X | The X coordinate for the element. | A constant or variable of type double or int. |
Y | The Y coordinate for the element. | A constant or variable of type double or int. |
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. |
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. |
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. |
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. |
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
Image | Provides a frame to display an image | File on disk containing the image to display |
Position | Position of the image relative to the container | Java predefined constants for position (CENTER, NORTH, …) |
Rotate | Angle to display the image with, relative to horizontal | Sexagesimal value of the angle (90º for perpendicular) |

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Page last modified on June 09, 2009, at 06:37 PM