The Main graph, and other graphs in this application, is an object which has been created by the Graphic Server (http://www.graphicsserver.com/).
The area of the graph for the mouse events extents approximately by 0.5 cm beyond the graph axes.
Moving a mouse over the Main graph results in the cursor position being displayed in the first two left-hand side panels below the graph. The cursor position is shown in the units of the graph axes and so can be used to view the numerical value of the transient at any point.
Left mouse button events related to the Main Graph always invoke zooming and unzooming. The section of the transient to be zoomed is chosen by dragging. This is done by clicking the desired start point on the Main Graph with the left mouse button and dragging to the final point of the required region at which point the left mouse button is released. However when less than five points are included in the area dragged the Unzoom action is invoked. Consequently, unzooming occurs when the user presses the left mouse button up and down anywhere on the Main Graph without dragging.
Right mouse button events are context sensitive and in some cases can be changed within a context by the Configuration/Customise menu item.
(1). If the one-exponential fitting button on the Analysis folder is pressed then with the right mouse button it is possible to define the part of the transient for one-exponential fitting by dragging. When the right button is released the fitting procedure starts. This action is similar to zooming and unzooming.
(2). Alternatively, if the Fast_DC button is pressed than for the fitting procedure the Fast_DC procedure is used when the mouse is dragged over the appropriate region of the transient.
(3). When the Beginning of the transient button is pressed then, irrespective of the status of the other Analysis toolbar buttons, the right mouse button allows the Beginning marker to be dragged and dropped on the signal sample which the user judges to be the first sample of the transient. Additionally, when on the Customise form the “right button up” action is enabled, the cursor can be moved either by dragging and dropping or by clicking the Main Graph with the right mouse button. In this case the ‘Beginning of the Transient’ button on the toolbar has to be set to the unpressed position to complete this procedure.
(4) (DLTS) For the conventional DLTS measurements it allows picking the points for the Arrhenius-type analysis by drawing a corridor over the points obtained form the one- and/or three-exponential fitting of subsequent transient acquired during the temperature scan.
The Main Graph bottom panels show the initial and final transient point of the zooming or fitting action and the number of points currently zoomed/chosen. The blue area on the Horizontal bar of the Main Graph shows graphically the portion of the whole transient which is currently zoomed. Other colour areas on top of the blue ones show portions of the transient currently chosen for the preliminary data analysis (cases (1)-(3)).