Graphics windows

Graphics windows

OSLO has several types of graphics windows that let you see how your lens design performs. Results from most of OSLO's analyses can be presented in graphical form. Many graphics windows are updatable. After changing any lens data, double-click on an updatable graphics window to recalculate based on the new lens data. Another special window allows you to change up to two lens parameters interactively while watching the effects in real time. OSLO uses the following types of graphics windows:

Autodraw Window ¾ The Autodraw window is a dedicated graphics window containing a plan view of the current lens. It is activated from the surface data spreadsheet.

Graphics Windows (GW and UW) ¾ OSLO uses up to six general-purpose graphics windows, which are static (GW) or updatable (UW). One graphics window is opened automatically when OSLO is started. To open or close additional graphics windows, use the Open and Close options on the Window menu.

When you first open a graphics window, it is a static (GW) type. It becomes the active window, so any new graphical output is placed in it. To make the active window updatable (UW), use the tool bar or menus to perform the desired analysis. The graphical output is placed in the new window, and it is marked updatable (UW). OSLO saves the analysis steps with the window so they can be repeated automatically. To recalculate the graphical output with new lens data, double-click on the window.

Updatable windows are very useful in developing a lens design. For example, suppose you have a lens you are modifying. Open a window with the Window >> Graphics >> Open command, then put a Report Graphics Ray Analysis plot in it using tool bar icon SHIFT+F3. If you change the lens data, the plot does not change by itself. However, since the window is updatable, click on the Update window icon in the graphics window and the Ray Analysis will be recalculated with the current lens data. You can also update a graphics window by double-clicking in it.

OSLO graphics windows support zooming by up to 16x. If you click on the zoom-in icon, the magnification of the graphics image will increase by a factor of 2. You can do this up to 4 times. To return to the base size, click on the cancel zoom icon. You can also zoom-in on a graphics window by double-clicking with the right mouse button. To zoom out, hold down the SHIFT key when you double click.

The set zoom center icon allows you to set the center of a zoomed graphics window. If you click on this icon and then move the cursor into the graphics window, the cursor will change into a cross. Place the cross on the point in the window that you want to become the center of the window, then click the left mouse button. The graphic image will be updated accordingly (provided that it is geometrically possible to put the requested point in the center while still filling the window). You can also reset the center of a zoomed graphics window by making a single click with the right button on the desired point.

If you have several updatable graphics windows on the screen, you can update them all simultaneously using the Windows >> Graphics >> Update All command in the main window.

In addition to maximizing or minimizing graphics windows, you can resize graphics windows after they are drawn, including changing the aspect ratio of the contents. There are two types of windows, normal windows and isometric windows. In normal windows, the graphic elements are distorted as the aspect ratio is changed. In Iso windows, the aspect ratio of the graphic elements is maintained, and the elements are moved in the window as necessary.

When you are done with a graphics window, close it by choosing the Graphics >> Close option from the Window menu. This may increase the speed of future graphics windows updates since the closed windows are not recalculated. Although graphics windows may be minimized, minimized graphics windows are updated and require the same calculation time as open graphics windows.

Interactive Design Windows ¾ The interactive design feature in OSLO uses three dedicated windows. One of these windows displays a drawing of the system, similar to the autodraw window. The second window displays a user assigned performance analysis, e.g., a ray-intercept curve. The third window contains two graphic sliders that can be attached to lens parameters.

The operation of the interactive design windows is established by a dialog box that includes a control to set drag processing on or off. If drag processing is on, the analysis will be repeated continuously as a slider is dragged. If it is off, the analysis will only be updated after the mouse button is released after moving the slider.

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