#!F-adobe-helvetica-medium-r-normal--18* #!N #!CDarkGreen #!N #!Rnavigat Navigating in a Scene #!N #!EC #!N #!N You can move your camera within the scene in all directions using the #!F-adobe-times-bold-r-normal--18* Navigate #!EF mode. As well as being able to change your view direction like the other modes, #!F-adobe-times-bold-r-normal--18* Navigate #!EF also lets you move #!F-adobe-times-medium-i-normal--18* through #!EF an object and view it from the inside out. #!N #!N When you use #!F-adobe-times-medium-i-normal--18* Navigate #!EF mode, the camera is automatically changed to perspective rendering. #!N #!N You can also move your camera in one direction while looking in another direction. For instance, you can move forward past the left side of an object while looking to the right, enabling you to see the object as you move past it. #!N #!N Unlike the #!F-adobe-times-bold-r-normal--18* Roam #!EF and #!F-adobe-times-bold-r-normal--18* Rotate #!EF modes, which appear to adjust the object to change your view, or the #!F-adobe-times-bold-r-normal--18* Zoom #!EF mode, which appears to adjust the camera lens to change your view, the #!F-adobe-times-bold-r-normal--18* Navigate #!EF mode appears to actually move your camera around the scene, while the objects you are viewing remain stationary. Note: Because Data Explorer does not support perspective rendering of volumes, you cannot navigate software-rendered volumes. #!N #!N To move your camera within the scene: #!N #!I0 #!N #!F-adobe-times-medium-r-normal--18* #!N #!N #!I30 #!N 1. Select the #!F-adobe-times-bold-r-normal--18* Navigate #!EF mode from the #!F-adobe-times-bold-r-normal--18* Mode #!EF option box. This adds some controls, illustrated in #!Lvc357,dxall309 f Figure 57 #!EL , to the #!F-adobe-times-bold-r-normal--18* View Control... #!EF dialog box. #!N #!I30 #!N 2. The mouse buttons control the navigate motion of the camera, while the setting of the #!F-adobe-times-bold-r-normal--18* Look #!EF option box controls the direction the camera is pointing. The #!F-adobe-times-bold-r-normal--18* Look #!EF options are illustrated in #!Llookopt5,dxall309 t Table 5 #!EL . Note: You can also enable #!F-adobe-times-bold-r-normal--18* Navigate #!EF mode by using the #!F-adobe-times-bold-r-normal--18* intrctnMode #!EF parameter to the Image tool (see Image in IBM Visualization Data Explorer User's Reference). #!N #!N With #!F-adobe-times-bold-r-normal--18* Look #!EF set to #!F-adobe-times-bold-r-normal--18* Forward #!EF , you have more control over the trajectory the camera moves along in the scene. To move forward, click on the left mouse button. To move backward, click on the right mouse button. The position of the mouse pointer on the image indicates the angle at which you travel; that is, the point where the mouse pointer is located moves more towards the center of the image area. #!Cbrown #!N #!F-adobe-times-medium-r-normal--18* #!Rvc357 #!N #!N Graphics omitted from Online Documentation. Please see the manual. #!N Figure 57. Navigate Portion of the View Control Dialog Box #!EF #!N #!EC #!Rlookopt5 #!T,1,101 #!F-adobe-times-bold-r-normal--18* #!N TAB Table 5. Look #!N TAB Option Menu #!N TAB Forward #!N TAB 45deg Left #!N TAB 45deg Right #!N TAB 45deg Up #!N TAB 45deg Down #!N TAB 90deg Left #!N TAB 90deg Right #!N TAB 90deg Up #!N TAB 90deg Down #!N TAB Backward #!N TAB Align #!N #!T,0 #!N #!N #!N #!N If the camera is pointing forward, you can use the center mouse button to change your direction. Clicking on the center mouse button adjusts your direction (and view of the object) toward the position of the mouse pointer in the image area. #!N #!N With the exception of #!F-adobe-times-bold-r-normal--18* Align #!EF , all of the options in the #!F-adobe-times-bold-r-normal--18* Look #!EF option box affect only the direction the camera is pointing. #!F-adobe-times-bold-r-normal--18* Align #!EF adjusts the current navigate direction (the forward direction) to be the same as the current #!F-adobe-times-bold-r-normal--18* Look #!EF value. For example, if the camera is pointing 45deg to the right of the current navigate direction, #!F-adobe-times-bold-r-normal--18* Align #!EF changes the navigate direction to be 45deg to the right of its current value, thereby aligning travel direction with camera direction. #!N Note: Switching to another mode (such as #!F-adobe-times-bold-r-normal--18* Rotate #!EF ) from #!F-adobe-times-bold-r-normal--18* Navigate #!EF while the Look value is something other than Forward, automatically aligns the navigate direction with the camera direction. #!N #!N #!N If the camera is pointing in any direction but forward, you can still use the left and right mouse buttons to move forward and backward; the trajectory of your movement is the same as it was when you last traveled forward. In this case, the center mouse button has no effect. #!N #!I30 #!N 3. The #!F-adobe-times-bold-r-normal--18* Navigate #!EF mode uses two values to control its precision. These are controlled by the two sliders on the #!F-adobe-times-bold-r-normal--18* View Control... #!EF dialog box. They are: #!N #!I0 #!N #!N #!I0 #!N #!F-adobe-times-bold-r-normal--18* Motion #!EF #!I50 #!N Controls the speed of execution as you move the camera forward and backward. The higher the number, the faster the speed, and the faster your camera appears to move. In addition to using the slider, you can use the up- and down-arrow keys to adjust this value (be sure the cursor is in the Image window). #!N #!I0 #!N #!F-adobe-times-bold-r-normal--18* Pivot #!EF #!I50 #!N Controls the increment of the turn angle when you turn using the center mouse button. The higher the number, the more drastic the turn. In addition to using the slider, you can use the left- and right-arrow keys to adjust this value (be sure the cursor is in the Image window). #!I0 #!N #!N #!N #!I0 #!N #!EF #!N #!N #!N #!N #!F-adobe-times-medium-i-normal--18* Next Topic #!EF #!N #!N #!Lcamset,dxall310 h Precise Camera Settings #!EL #!N #!F-adobe-times-medium-i-normal--18* #!N
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