CHAPTER 1 - SYSTEM OPERATIONLSM 880 Center Screen Area / Image Containers - Display and Image Analysis ZEISS10/2014 V_01 000000-2071-464 451Series:3D Data can be visualized online by simply grabbing and turning the data stack with the mouse. Inaddition to this interactive way of interacting with the data 3D VisArt is able to perform render serieswhere the dataset is turned around one of the axis, along a freely defined position list or a freelydefinable start and end point. The resulting series can be saved as movie files for presentations. Apreview of the render series is available in the position list mode.Measurements:Measurements of distances, angles and polylines can be measured using the Measure panel in3D VisArt.Settings:The Settings panel contains global settings for the 3D VisArt.6.9.1 Shadow ProjectionIn the Shadow render mode the structures in theimage are illuminated by a virtual light source.The volume is viewed as if looking through theeyepieces of the microscope and the light sourceprojects a shadow onto a background plane.This gives the data a reference in space, makingvisualization much easier. The rendering effectitself consists of a combination of light reflectionand opacity (degree of transparency).The display in this mode is calculated by the mainprocessor (CPU) of the computer (Voxel mode).The different modes can be accessed by clicking onthe pull down symbol at the right hand side of theShadow button (Fig. 636).− Front button: Shadow rendering front view− Back button: Shadow rendering back view− Any View button: Shadow rendering withuser defined viewWith a click on Front, the 3D reconstructed imageis displayed in a shadow projection where it isilluminated at a 45° angle from the front left.A click on the Back button creates the sameprojection with illumination from back left.Detailed settings for shadow projection can beaccessed via the Appearance tab.Fig. 635 3D panel - Shadow buttonFig. 636 Shadow pull down menu
