Cellider tutorial -> Shape-patterning Example


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In the shape-patterning mode you create special patterns on a component map (that will eventually be transferred to your Magsimus session) using a selection of built-in shapes. Unlike manual-patterning actions that apply only to the active layer (displayed in the map window), shape patterning applies to the sample as whole.

Begin the shape-patterning mode by selecting the Shape option in the Mode frame of Cellider.  You will work with a different component from the one we used in the previous section.  Select Permanent magnet array group from the Group box. This group contains the array component PM array which is listed in the Components box. In the Magsimus session display this group alone by making the selection [2] Permanent magnet array group in the On display list. Your Cellider window and Magsimus System-view box should now look like Fig. 10a and Fig. 10b.

(a)

(b)

Fig. 10. Cellider and Magsimus Deluxe views discussed in the text.

In Cellider you will “carve” out a conical shape for your sample. But first you will carry out a few preparatory actions. Prepare for patterning (as opposed to zooming) actions, by making sure that the toggle button above the map area reads Click to Zoom and the annotation next to it on the left reads Patterning (you may need to click the toggle button once to achieve this). In the Layout properties frame to the right of the map box, select the map plane U-V and click the Center Array button. The latter action navigates to the central U-V layer of the sample (in the w-direction normal to it) and displays it on the map. Finally, turn off all the map cells  by first selecting Clear in the Reset pattern frame and clicking the All button. The reason for clearing the map is to make sure that only the appropriate cells of the sample are turned on in the map window when the shape is created (recall that as the pattern is created the off cells are turned on and vice-versa). Creating a shape in a fully turned-on map has the opposite effect of hollowing out the sample according to the shape’s form.  

Next, you will define the shape and apply it to the map window. In the Mode frame select Cone from the drop-down list box to the right of the Shape option. A pictorial representation of the shape selection you make in this box is displayed in the Shape inputs frame next to it. Make sure the Base plane (P) is set to V-W and the Orientation to Forward (click here to learn more about built-in shape properties). In the Shape actions frame make sure that Grid inputs is selected. This means that input parameters (for example the a-input of the cone in the Shape inputs box) are expressed in terms of number of cells. The other selection Length inputs will result in inputs being interpreted as normal length inputs.

Click the Apply shape button to create the shape in the map box (Fig. 11a) and click the Transfer button (above the map box) to transfer this shape to Magsimus. The display of the component in Magsimus session should now look like Fig. 11b.

(a)

(b)

Fig. 11. Shape-mode patterning figures discussed in the text.

Round up

In this section you learned how to easily create patterns in Cellider using built-in shapes. By default, the full extent of the map window is selected as the region for applying the shape. You can specify a smaller region by sweeping out with the mouse a region of your choice (note however, that  the active region is reverted back to the default extents whenever you switch to a different map plane). You can carry out the usual map zoom actions after clicking the toggle button above the map box so that it reads Click to Pattern.

 

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