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How to Handle Absolute Elevation at Zero Levels in Project Planning

In the overall plan, there is a terrain with an altitude exceeding 1000 meters. After converting the RV into a real terrain model, a specific location above 1000 meters becomes the project’s positive and negative zero reference point. What is the correct approach to handle this situation? The illustration below demonstrates the solution:

Solution when the absolute elevation of the overall plan is at the positive and negative zero positions of the project

The recommended method is as follows:

First, unlock the project base point. Then, move it upward together with all elevation markers. After this adjustment, lock the project base point again. Following this, set the other elevation annotations to reference the project baseline.

Solution when the absolute elevation of the overall plan is at the positive and negative zero positions of the project

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