WHAT IS GRID MAPPING CODE
This universal grid code system ( MGRS) is more commonly referred to in the USA as USNG. What is a grid zone designation? A grid zone designator is the first three digits of a universal alpha-numeric reference primarily used for military purposes which pinpoints a unique location around the world. Therefore Zone 1 lies between 180°W to 174°W longitude lines, Zone 2 is between 174°W and 168°W longitude lines, and Zone 60 lies between 174☎ and 180° (International Date Line) longitude lines. A grouped layer represents only one of the possible grids in the feature classes.Info about Utm Grid Zone Map What UTM zone Am I in? UTM zones are numbered from 1 to 60 starting from 180° longitude at the International Date Line and proceeding eastward.A definition query is applied to each layer in the group, so only the current grid is displayed.Unique symbols for each layer are applied using the representation renderer.There can be any number of ticks per grid line or segment component.There can be any number of endpoints per grid line, segment, or tick component.There can be any number of points per neatline component.There can be any number of grid lines per neatline component.Every neatline component must have segments.There can be any number of neatline components per grid.There can only be one annotation per endpoint, or point component.The annotation component is at the top of the grouped layer.There can only be one mask component per grid.The mask component is the bottom layer of the grouped layer.Grids are added to ArcMap as a grouped layer at the top of the table of contents on the List By Drawing Order view.The following is a grid produced from the SoCal.xml sample grid definition file: Key points when using Grids and graticules layers Grids and graticules feature classes include: Feature classes store the basic components of a grid. The Make Grids And Graticules Layer geoprocessing tool creates feature classes and features modeled as cartographic grid components in a specified file, an многопользовательская база геоданных, or personal geodatabase. Multiple UTM zones per grid component (UTM zone convergence-Zippers)ĪrcMap grids and graticules vs. Grid components can be in any coordinate system, but must share a common geographic coordinate system. Graticule in the geographic coordinate system of the data frame Supports creation of graticules, measured grids, MGRS (enhanced), calibrated/scaled borders/neatlines Supports creation of graticules, measured grids, MGRS, reference grids Stored and distributed as XML files or in geodatabaseĭata frame extent can be coincident with map extent.ĭata frame must extend beyond map extent. User-defined precision up to the accuracy of the geodatabase Static-New features must be created for each new extent.ĭisplays single precision, values entered in double Use this table as a guide when determining which tool to use to create your grids. The following table lists the key differences between standard ArcMap grids and graticules, and the grids produced by the Make Grids And Graticules Layer geoprocessing tool. The grids that are produced contain geographic location indicators based on user-specified shapes, scales, coordinate systems, and units. Grids and Graticules consists of the Grids and Graticules Designer window, the Make Grids And Graticules Layer geoprocessing tool, the Add Grid Data tool, and the Grid Layout View tool. Grids and Graticules is a suite of tools that creates grids, graticules, and borders for a variety of map products including nautical and aeronautical charts, and topographic, parcel, street, and tourist maps. Key points when using Grids and graticules layers.
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