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In section 2D and 3D 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 2D and 3D 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.
To activate the Camera tool, click on the related icon in the tool bar or press SHIFT+C
.
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, activating a 3D view highlights the related camera.
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.
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.
The most powerful and most convenient methods to manipulate a camera are the controls described in section 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:
Click and drag the dot in order to move the camera origin.
• 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).
Click and drag the end of the line in order to change the camera orientation.
• 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).
In order to assign a 3D view (the active 3D view) another camera, use the Page Up
and Page Down
keys to cycle through all cameras in the map.
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 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. |