Annotations are a fairly new addition to scanning field workflows, but they are turning out to be a way to significantly improve the communication between the field and the office.
A common use case is to call out features that will be important to those in the office that create the deliverables. An example could be identifying markers for buried utilities. In the example below there are quite a few marked utilities but looking at the station images or even the 3D point cloud they are time consuming to find.
However, as the scans are collected, the person capturing the scan has the benefit of seeing the job site in person and walking along the markers, so it is very obvious where they are. By tagging the locations in a field software such as Trimble Perspective the scan technician can reduce the office time of hunting for pin flags and paint markings without out adding time in the field.
In the images below, the annotation allows you to quickly see where the buried utility is. Adding a photo from a tablet or phone can add more context which makes it even easier on the drafter or modeler.
Back in the office, using a software such as Trimble RealWorks you can display the annotations while doing line work or modeling.
In addition, you can view the properties of the annotations to see additional details or any images that have been attached.
this case a note has been added to an annotation to let the office know that when they are checking the registration, they don’t need to worry about misalignments on objects like this light pole because it was very windy. The field technician, knowing that rectangular or cylindrical objects are commonly used when checking the quality of the registration, made a point of adding the annotations to the light pole when he noticed it moving from the strong wind during the scan.
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Jason Hayes is a Product Manager at Trimble Inc., where he is responsible for guiding the development of 3D laser scanning software and promoting Trimble laser scanning solutions.
Prior to joining the software team, Jason worked as the Product Manager for the Oil, Gas, and Chemical division to bring the Trimble CX and Trimble TX8 laser scanners to market.