Grid (local) coordinates cannot be displayed if the input transformation was not defined. If you have not defined a projection, only points stored as grid coordinates appear. For example, if the null elevation is ‑9999, then ‑9999.999 is also considered to be null. Values are considered to be null if they are less than or equal to the null elevation value. For the Trimble Access software to correctly treat this value as null, you must enter the value that represents null in the DXF file in the Null elevation (DXF only) field. Some applications use a value such as ‑9999.999 to represent null. Clearing the Create nodes check box does not hide these node points. Surpac background files already have the node points available. Performance may be impacted when Create nodes is selected. This option also creates points at the center of circle and arc elements in DXF files, but creating a point at the center of a DXF arc element does not apply to arc elements that are part of a polyline.īecause Shapefiles do not support arcs, arcs are often represented as a series of short lines resulting in a large number of points. This option applies to DXF files, Shapefiles, and LandXML parcels (polylines). The created points can then be selected for stakeout or Cogo calculations. To create points at the ends of lines and arcs and at all points along a polyline, select the Create nodes (DXF, Shape & LandXML) check box. To explode polylines contained in the file into individual line and arc segments, select the Explode polylines (DXF, Shape & LandXML) check box. To configure these settings, tap in the map toolbar, select Settings and configure the setting in the Map data controls group.
The Trimble Access software provides settings for controlling the display of the data in DXF, Shape, and LandXML files.
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