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Export to 3D PDF will export a PDF that can be loaded in Adobe Acrobat Reader or other compatible 3D PDF readers.
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The surface can be exported to Google Earth or to BAG format for import into other software. Export Surface as Image will export a 2D georeferenced image, in either GeoTIFF format or JPEG with World file. The DTM Tools Menu has items to operate on the DTM, interact with the DTM or export the DTM in another format (below the horizontal rule). The two toggle buttons change the DTM from a wire frame display to a solid shaded surface Surface Series. (left-click and drag the object up or down.) Objects can be re-ordered by dragging and dropping them within the Fledermaus object list. That is, the transparent object needs to be loaded so that it is the last in the object list. When using transparency, note that transparent objects work best when they are drawn last. Dragging the slider right or left will make the DTM more or less transparent, where the right position corresponds to completely transparent and the left position corresponds to completely solid. The Transparency slider controls the current transparency value. When working with large data sets and the screen is rendering slowly, increase the Mesh Gap and you will be able to move much more easily through the data. A higher Mesh Gap means less data is drawn so the screen can redraw faster. A lower Mesh Gap means more data is drawn so the screen may redraw slower. To adjust the Mesh Gap by hand, disable the Auto toggle and enter a value in the Mesh Gap textfield. The Auto toggle enables the ShiftScape TM rendering engine to automatically adjust how much the DTM is degraded based on the performance of your computer.
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For example, a value of 1 will result in all points being used, and a value of 2 results in every second point being used. The value in the Mesh Gap textfield determines how much the DTM is degraded while moving in an exploration mode. These control how the SonarDTM object is displayed in the Main Visualization Window. The controls for the SonarDTM class are shown below. This is where some of the cells of a uniformly sampled surface are unknown and therefore should not be rendered in the display. The SonarDTM class allows for the possibility of data holes (called holidays). X and Y are sampled on the uniform grid and Z is the height (or depth) at the specified X and Y coordinates. In Fledermaus, a DTM is a uniformly gridded surface that represents the discrete sampled function z = f(x, y).