[052] How to Use Formula Calculation in Global Mapper Attribute Setup
Automating attribute transformation using mathematical and string functions to prepare data for 3D modeling. This tutorial explains how to use the "Use Formula Calculation" feature within Global Mapper's Attribute Calculation Setup. We focus on a real-world scenario where elevation data is trapped inside a text string (e.g., "FH:118") and must be extracted and converted into a numeric attribute for accurate 3D simulations. Why Attribute Transformation Matters in 3D Simulation For 3D simulations, you need to create 3D data by applying a planned elevation to each parcel. However, in actual CAD drawings you receive, the parcels and the planned elevations are often placed on separate layers. Of course, if there are only one or two, you could manually enter the elevation value for each parcel, but if there are hundreds of parcels, the story changes. Take a look at the data below. img 1 : Global...