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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 ## Set of traces (2D) A set is just an empty element, that can host other elements (and sets). As such, a set has a position and a size, and accepts a transformation, but you need to add other elements to the set to make it display anything on the panel. The great advantage of sets is that they allow manipulation of collections of other drawables as a whole. ## Properties
TraceSet
Number of elements
Name | Description | Values accepted | Default
#Elements | The number of elements in the set. | An integer value. |
Input
Name | Description | Values accepted | Default
Input X | The X coordinate of the point to add. | A constant or variable of type double or int. |
Input Y | The Y coordinate of the point to add. | A constant or variable of type double or int. |
Position
Name | Description | Values accepted | Default
Position X | The X coordinate for the elements. | A constant or variable of type double, int or double[]. |
Position Y | The Y coordinate for the elements. | A constant or variable of type double, int or double[]. |
Position [] | The double[][] array with the coordinates of the elements. | A double matrix. |
Configuration
Name | Description | Values accepted | Default
Max Points | The maximum number of points of the element. | A constant or variable of type int. Use an array to assign a maximum to each element. |
Skip | The number of input points to skip before plotting one. | A constant or variable of type int. Use an array to assign a different value to each element. |
Active | Whether the element actually accepts input data. | A boolean variable or a boolean array with true or false values. |
No repeat | Whether to ignore equal succesive points. | A boolean variable or a boolean array with true or false values. |
Connected | Whether to connect each point to the next one. | A boolean variable or a boolean array with true or false values. |
Visibility and Interaction
Name | Description | Values accepted | Default
Menu Entry | The name to display in the simulation’s corresponding menu entry. | A string variable. |
Visible | The visibility of the elements. | A boolean variable or a boolean array with true or false values. |
Draggable | Whether the elements can be moved. | A boolean variable or a boolean array with true or false values. |
Element | The index of the element affected by the interaction. | An integer value. |
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
Line Color | The color used for the lines of the element. | Use the editor provided or read about colors. |
Stroke | The thickness and line style for the lines of the element. | A constant or variable of type double or int or an Object. |
Marker Shape | The type of marker to draw. | Use the editor provided to make your choice or type an integer. Use an array to assign a different shape to each element. |
Marker Size | The size of the marker (in pixels). | A constant or variable of type int. Use an array to assign a different size to each element. |
Marker Color | The color used for the markers. | Use the editor provided or read about colors. Use an array to assign a different color to each element |
Position | The relative drawing position of the markers. | Use the editor provided or read about positions. Use an array to assign a different position to each element |
Rotate | The (counter-clockwise) rotation angle to apply to the markers. | A constant or variable of type double or int. Use an array to assign a different angle to each element |
Memory
Name | Description | Values accepted | Default
Memory | The number of series to remember (included the current one). | A constant or variable of type int. Use an array to assign a different value to each element |
Mem Display | How the series in memory are displayed. | Use the editor provided to make your choice or type an integer. Use an array to assign a different choice to each element |
Mem Color | The color used to display the previous series of points. | Use the editor provided or read about colors. Use an array to assign a different color to each element |

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