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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 ====== | ||
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- | {{mapping:cawe:editingtools:cawe_toolbar_camera.png?80 }} | ||
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- | 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. | ||
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- | 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. | ||
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- | 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. | ||
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- | /* // 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. */ | ||
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- | /* // 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. */ | ||
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- | To activate the Camera tool, click on the related icon in the tool bar or press ''SHIFT+C''. | ||
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- | ===== Camera display in 2D views ===== | ||
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- | {{: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). | ||
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- | 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> | ||
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- | {{: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. | ||
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- | As before, the most recently used (or changed) camera is highlighted in brighter colors.<clear> | ||
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- | ===== Creating a camera ===== | ||
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- | {{: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. | ||
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- | At this time, manually created cameras are not saved with the map; they are lost when the map is closed.<clear> | ||
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- | ===== Manipulating the origin and orientation ===== | ||
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- | 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). | ||
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- | Sometimes however, it is worthwhile to set the origin and/or the orientation in a 2D view: | ||
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- | {{: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. | ||
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- | /* 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> | ||
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- | {{: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. | ||
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- | /* 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> | ||
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- | ===== Switching cameras ===== | ||
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- | 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. | ||
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- | ===== Camera tool keyboard shortcuts ===== | ||
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- | | ''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. | | ||