| 摘要 |
Methods and apparatus for generating electronic records of marking operations and/or environmental landmarks for underground facilities/utilities. Marking information and/or landmark information may be logged/stored in local memory of a marking device, formatted in various manners, processed and/or analyzed at the marking device itself, and/or transmitted to another device (e.g., a remote computer/server) for storage, processing and/or analysis. In one example, a marking device may be configured to operate in both a marking mode and a landmark mode, and information relating to one or more environmental landmarks in a vicinity of the marking operation may be collected and logged with actuation of a marking device in the landmark mode. A computer-generated image or other visual representation may be electronically rendered in a display field based on logged marking information and/or landmark information, essentially in real time as the information is collected, and/or recreated thereafter based on one or more stored electronic records.
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