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mapping:cawe:editingtools:camera [2010-11-01 21:45]
Carsten Revised the text
mapping:cawe:editingtools:camera [2013-01-07 12:07]
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-====== The Camera Tool ====== 
- 
-{{mapping:​cawe:​editingtools:​cawe_toolbar_camera.png?​80 }} 
- 
-In section [[mapping:​cawe:​views]] we have explained how 2D and 3D views work and how you use them to explore and navigate the map. 
-We have also mentioned (albeit briefly) that each 3D view has a "​camera"​ assigned: 
-A camera specifies a viewer //origin// (sometimes also called "eye position"​) and an //​orientation//​ ("​direction"​). When you use the mouse or keyboard to look, move, pan, zoom or orbit in a 3D view, you actually manipulate the related camera position and orientation,​ and the 3D view in turn uses the updated camera details to update the scene rendering. 
- 
-We believe that the mouse and keyboard camera controls of section [[mapping:​cawe:​views]] are so powerful and easy to use that you will use them virtually all the time. 
- 
-The purpose of the Camera tool is to add the less frequently needed extras: 
-You can create new cameras (and assign them in turns to 3D views), and edit their origins and orientations in the 2D views. 
- 
-/* // Das sollte nur bei "​Delete a Camera"​ stehen: 
-Since CaWE has always a 3D view, there has to be at least one camera in each map. */ 
- 
-/* // Das sollte bei "Eine neue Camera anlegen"​ stehen: 
-Using more than one camera makes it possible to "​save"​ a certain camera position and return to it later and therefore makes navigation in big maps a lot easier. */ 
- 
-To activate the Camera tool, click on the related icon in the tool bar or press ''​SHIFT+C''​. 
- 
- 
-===== Camera display in 2D views ===== 
- 
-{{:​mapping:​cawe:​editingtools:​cameras_2d_tool_other.png |Cameras in a 2D view when a tool other than the Camera tool is active. The  most recently used camera is highlighted.}} When a tool other than the Camera tool is active, cameras are shown with a gray dot at their origin and a gray line that indicates their viewing direction (orientation). 
- 
-The most recently used (or changed) camera is highlighted in a brighter shade of gray: For example, [[mapping:​cawe:​views#​the_active_view|activating a 3D view]] highlights the related camera.<​clear>​ 
- 
-{{:​mapping:​cawe:​editingtools:​cameras_2d_tool_camera.png |Cameras in a 2D view when the Camera tool is active. The  most recently used camera is highlighted.}} When the Camera tool is active, the cameras are displayed in colors so that they are easier to spot in the map. 
- 
-As before, the most recently used (or changed) camera is highlighted in brighter colors.<​clear>​ 
- 
- 
-===== Creating a camera ===== 
- 
-{{:​mapping:​cawe:​editingtools:​cameras_create.png |Use Shift+LMB to create a new camera.}} 
-To create a new camera, press and hold the ''​Shift''​ key, then use the left mouse button to drag a line in one of the 2D views. The starting point of the line becomes the camera origin, the line itself defines the orientation. 
- 
-At this time, manually created cameras are not saved with the map; they are lost when the map is closed.<​clear>​ 
- 
- 
-===== Manipulating the origin and orientation ===== 
- 
-The most powerful and most convenient methods to manipulate a camera are the controls described in section [[mapping:​cawe:​views#​navigating_the_3d_views|Navigating the 3D views]] (in addition, the controls described there do not require the Camera tool to be active: they work always). 
- 
-Sometimes however, it is worthwhile to set the origin and/or the orientation in a 2D view: 
- 
-{{:​mapping:​cawe:​editingtools:​cameras_move_pos.png |Click and drag the dot in order to move the camera origin.}} 
-Click and drag the dot in order to move the camera origin. 
- 
-/* Eine normale " ​ - ..." Liste funktioniert hier nicht gut... */ 
-• Holding the ''​Alt''​ key while dragging toggles grid snapping.\\ 
-• Holding the ''​Ctrl''​ key moves the line as well (and thus the camera as a whole).<​clear>​ 
- 
-{{:​mapping:​cawe:​editingtools:​cameras_move_dir.png |Click and drag the end of the line in order to change the camera orientation.}} 
-Click and drag the end of the line in order to change the camera orientation. 
- 
-/* Eine normale " ​ - ..." Liste funktioniert hier nicht gut... */ 
-• Holding the ''​Alt''​ key while dragging toggles grid snapping.\\ 
-• Holding the ''​Ctrl''​ key moves the dot as well (and thus the camera as a whole).<​clear>​ 
- 
- 
-===== Switching cameras ===== 
- 
-In order to assign a 3D view (the [[mapping:​cawe:​views#​the_active_view|active]] 3D view) another camera, use the ''​Page Up''​ and ''​Page Down''​ keys to cycle through all cameras in the map. 
- 
- 
-===== Camera tool keyboard shortcuts ===== 
- 
-| ''​Page Up'' ​   | Assign the next camera to the currently active 3D view. | 
-| ''​Page Down'' ​ | Assign the previous camera to the currently active 3D view. | 
-| ''​ESC'' ​       | Quit the camera tool and switch to the [[mapping:​cawe:​editingtools:​selection|Selection]] tool. | 
-| ''​Shift'' ​     | LMB-clicking and dragging in a 2D view creates new camera. | 
-| ''​Ctrl'' ​      | Move the camera as a whole when dragging one of its handles. | 
-| ''​Alt'' ​       | Temporarily toggle grid snapping while dragging a camera handle. | 
  
mapping/cawe/editingtools/camera.txt · Last modified: 2013-01-07 12:07 (external edit)