| 摘要 |
Systems, devices and methods are provided for selecting a desired track log from a set of track log points so as to provide electronic systems, such as navigational aid devices, with the capability of more powerful and flexible applications. In one embodiment, a desired first endpoint and a desired second endpoint are specified for a desired track log. An actual first endpoint is assigned based on the desired first endpoint and a set of track log points. An actual second endpoint is assigned based on the desired second endpoint and the set of track log points. The desired track log is identified using the actual first endpoint, the actual second endpoint, and at least one track log point. At least one of the desired first endpoint and the desired second endpoint is capable of being specified by specifying a location. Other aspects and embodiments are provided herein.
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