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| − | <H3>
| + | --[[利用者:Sanak|Sanak]] 2009年10月5日 (月) 12:41 (UTC)このページは削除予定です。 |
| − | What is GPS?
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| − | <P>
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| − | GPS, the Global Positioning System, is a satellite-based system that allows anyone with a GPS receiver to find their exact position anywhere in the world.
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| − | It is used as an aid in navigation, for example in airplanes, in boats and by hikers.
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| − | The GPS receiver uses the signals from the satellites to calculate its latitude, longitude and (sometimes) elevation.
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| − | Most receivers also have the capability to store locations (known as <SPAN CLASS="textit">waypoints</SPAN>), sequences of locations that make up a planned <SPAN CLASS="textit">route</SPAN> and a tracklog or <SPAN CLASS="textit">track</SPAN> of the receivers movement over time.
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| − | Waypoints, routes and tracks are the three basic feature types in GPS data.
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| − | QGIS displays waypoints in point layers while routes and tracks are displayed in linestring layers.
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| − | <P>
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| − | <BR><HR>
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2009年10月5日 (月) 21:41時点における最新版
--Sanak 2009年10月5日 (月) 12:41 (UTC)このページは削除予定です。
