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Set of polygons

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

 PolygonSet2D 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 Data The data for the element. A double[nElements][nPoints][2] array. Each entry in the first index of the array provides the data for the vertex of the polygons as indicated by the Data property of a single Polygon element. If a double[nPoints][2] is given instead, the same data is used for all the polygons in the set. X data The X coordinates for the element. A double[nElements][nPoints] array. Each entry in the data array provides the X coordinate for all the vertex of a polygon of the set. The coordinates are relative to the polygon’s position and size. If a double[nPoints] is given, the same data is used for all polygons. If a single double value is given, the same value is used for all vertex of all polygons. 0 Y data The Y coordinates for the element. A double[nElements][nPoints] array. Each entry in the data array provides the Y coordinate for all the vertex of a polygon of the set. The coordinates are relative to the polygon’s position and size. If a double[nPoints] is given, the same data is used for all polygons. If a single double value is given, the same value is used for all vertex of all polygons. 0 Position and Size Name Description Values accepted Default Pos X The X coordinate for the elements. A constant or variable of type double, int or double[]. Pos 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. Size X The size of the elements in the X direction. A constant or variable of type double, int or double[]. Size Y The size of the elements in the Y direction. A constant or variable of type double, int or double[]. Size [] The double[][] array with the size of the elements in each direction. A double matrix. 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 Menu Entry The name to display in the simulationīs corresponding elements menu entry. A String constant or variable. Visible The visibility of the elements. A boolean variable or a boolean array with true or false values. Measured Whether the element affects its parent panel’s autoscaling. A boolean variable or one of the constants true or false. Draggable Whether the elements can be moved. A boolean variable or a boolean array with true or false values. Resizable Whether the elements can be resized. A boolean variable or a boolean array with true or false values. Drag Group Whether dragging the element affects its group. A boolean variable or a boolean array with true or false values. Resize Group Whether resizing the element affects its group. A boolean variable or a boolean array with true or false values. Sensitivity The size of the hot spots (in pixels). A variable or array within integer values, 0 makes the full particle the hot spot. Interaction Index The index of the element affected by the interaction. An integer value. Point Selected The index of the point selected. A constant or variable of type double or int. 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 Closed Whether the polygon is closed. A boolean variable or a boolean array with true or false values. Line Color The color used for the lines of the element. Use the editor provided or read about colors. Fill Color The color used to fill the element. Use the editor provided or read about colors. The special value null draws a hollow element. Use an array to assign a color to each element. Line Width The thickness for the lines of the element. A constant or variable of type double or int indicates the thickness. Use an array to assign the thickness to each element. 1 Draw Lines Whether to draw the lines. A boolean variable or a boolean array with true or false values. Draw Fill Whether to fill the element. A boolean variable or a boolean array with true or false values.