在玩FlightGear的过程中，可能需要将视景分角度投影到不同显示器上，或者在一个显示器窗口上投影不同角度的视景。下面记录该需求实现方法。
投影到不同显示器
在FGDATA文件夹根目录下创建camera-views.xml文件夹，写入如下内容：
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| <?xml version="1.0"?>
<PropertyList>
<camera-group>
<window>
<name type="string">Front</name>
<host-name type="string"></host-name>
<display>0</display>
<screen>0</screen>
<fullscreen type = "bool">false</fullscreen>
<decoration type = "bool">false</decoration>
<x>0</x>
<y>0</y>
<width>1920</width>
<height>1080</height>
</window>
<window>
<name type="string">Right</name>
<host-name type="string"></host-name>
<display>0</display>
<screen>1</screen>
<fullscreen type = "bool">false</fullscreen>
<decoration type = "bool">false</decoration>
<x>0</x>
<y>0</y>
<width>1280</width>
<height>720</height>
</window>
<gui>
<window>
<name type="string">Front</name>
</window>
</gui>
<camera>
<name type="string">Front</name>
<window>
<name>Front</name>
</window>
<view>
<heading-deg type = "double">0.0</heading-deg>
<roll-deg type = "double">0.0</roll-deg>
<pitch-deg type = "double">0.0</pitch-deg>
</view>
<viewport>
<x>0</x>
<y>0</y>
<width>1920</width>
<height>1080</height>
</viewport>
</camera>
<camera>
<name type="string">Right</name>
<window>
<name>Right</name>
</window>
<view>
<heading-deg type = "double">-45.0</heading-deg>
<roll-deg type = "double">0.0</roll-deg>
<pitch-deg type = "double">0.0</pitch-deg>
</view>
<viewport>
<x>0</x>
<y>0</y>
<width>1280</width>
<height>720</height>
</viewport>
</camera>
</camera-group>
</PropertyList>
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在FGDATA文件夹根目录下找到defaults.xml配置文件，修改如下配置内容，加入camera-views.xml配置文件。
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| <rendering include="camera-views.xml">
</rendering>
|
投影到窗口不同地方
在FGDATA文件夹根目录下创建camera-views.xml文件夹，写入如下内容：
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| <?xml version="1.0"?>
<PropertyList>
<camera-group>
<window>
<name type="string">Front</name>
<host-name type="string"></host-name>
<display>0</display>
<screen>0</screen>
<fullscreen type = "bool">false</fullscreen>
<decoration type = "bool">false</decoration>
<x>0</x>
<y>0</y>
<width>1920</width>
<height>1080</height>
</window>
<gui>
<window>
<name type="string">Front</name>
</window>
</gui>
<camera>
<name type="string">Main</name>
<window>
<name>Front</name>
</window>
<view>
<heading-deg type = "double">0.0</heading-deg>
<roll-deg type = "double">0.0</roll-deg>
<pitch-deg type = "double">0.0</pitch-deg>
</view>
<viewport>
<x>0</x>
<y>0</y>
<width>1920</width>
<height>1080</height>
</viewport>
</camera>
<camera>
<name type="string">Left-Down</name>
<window>
<name>Front</name>
</window>
<view>
<heading-deg type = "double">0.0</heading-deg>
<roll-deg type = "double">0.0</roll-deg>
<pitch-deg type = "double">0.0</pitch-deg>
</view>
<viewport>
<x>0</x>
<y>0</y>
<width>320</width>
<height>180</height>
</viewport>
</camera>
<camera>
<name type="string">Right-Down</name>
<window>
<name>Front</name>
</window>
<view>
<heading-deg type = "double">0.0</heading-deg>
<roll-deg type = "double">0.0</roll-deg>
<pitch-deg type = "double">0.0</pitch-deg>
</view>
<viewport>
<x>1600</x>
<y>0</y>
<width>320</width>
<height>180</height>
</viewport>
</camera>
<camera>
<name type="string">Right-Up</name>
<window>
<name>Front</name>
</window>
<view>
<heading-deg type = "double">0.0</heading-deg>
<roll-deg type = "double">0.0</roll-deg>
<pitch-deg type = "double">0.0</pitch-deg>
</view>
<viewport>
<x>1600</x>
<y>900</y>
<width>320</width>
<height>180</height>
</viewport>
</camera>
</camera-group>
</PropertyList>
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在FGDATA文件夹根目录下找到defaults.xml配置文件，修改如下配置内容，加入camera-views.xml配置文件。
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| <rendering include="camera-views.xml">
</rendering>
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参考链接
- Multi-Display setup,by flightgear.
- Howto:Configure camera view windows,by flightgear.