The Python tool updates those graphics to show the appropriate angles and values based on the current data frame extent using Production Mapping’s Magnetic Calculator geoprocessing tool. The just released Create Declination Diagram Template provides you with the ability to do just that! The provided map document has graphics that can be modified to change the look of the diagram.
Many users want the ability to change the styles of their diagrams, allowing them to meet their organization’s custom graphic specifications. However, this element cannot be configured to change the diagram’s graphic appearance (such as font, arrow style, line length, color, etc.). A previous blog article on declination diagrams with ArcMap discussed what declination diagrams/north arrows are, and the different options for adding them to ArcMap.Įsri Production Mapping’s Topo North Arrow surround element (a USGS-style declination diagram) is mentioned in the blog.
#Magnetic north arcgis 10.3 install#
Based on the installed version of Production Mapping, please download and install the latest patch from the Esri support site before using this template.Ī declination diagram shows the angular relationship between grid, magnetic, and true north using a series of graphic arrows. This is addressed in the recent patches for Esri Production Mapping as fixes to the Magnetic Calculator tool. Update: An update to the World Magnetic Model (WMM) released in the year 2015 causes errors when executing the python tool available with this template.
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