DXF, Shape and LandXML files

To display DXF, Shape, or LandXML files in the map, tap in the map toolbar to view the Active map screen and then tap the file once () to make it visible, and tap it again () to make entities in the file selectable. To add files from a different location to the project folder, tap Add.

These types of files typically contain layers. To make only some layers visible or selectable, in the Active map screen tap the arrow next to the file name and then tap each layer once to hide it, or twice to make it visible but not selectable. Tap the layer again to make it visible and selectable.

For a complete list of displayable and selectable entities in DXF, Shape and LandXML files, see Displayable and selectable entities below.

Triangular 3D faces in a DXF file and triangulated DTMs in a LandXML file can be used as surfaces in Trimble Access. See DTMs and surfaces.

The Trimble Access software provides settings for controlling the display of the data in DXF, Shape, and LandXML files. To configure these settings, tap in the map toolbar, select Settings and configure the setting in the Map data controls group.

To explode polylines

To explode polylines contained in the file into individual line and arc segments, select the Explode polylines (DXF, Shape & LandXML) check box.

To create nodes

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. The created points can then be selected for stakeout or Cogo calculations.

This option applies to DXF files, Shapefiles, and LandXML parcels (polylines).

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.

Because Shapefiles do not support arcs, arcs are often represented as a series of short lines resulting in a large number of points. Performance may be impacted when Create nodes is selected.

Surpac background files already have the node points available. Clearing the Create nodes check box does not hide these node points.

To specify the null elevation

Some applications use a value such as ‑9999.999 to represent null. 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. Values are considered to be null if they are less than or equal to the null elevation value. For example, if the null elevation is ‑9999, then ‑9999.999 is also considered to be null.

Only grid coordinates are displayed. If you have not defined a projection, only points stored as grid coordinates appear. Grid (local) coordinates cannot be displayed if the input transformation was not defined. See Transformations.

If the Grid coords field in the Cogo settings screen is set to Increase South‑West or Increase South‑East, the map display is rotated by 180° such that increasing south coordinates are displayed up the screen.

To rotate the data in the map, tap and then tap the map and drag to rotate the view. The icon in the center of the map indicates the point of orbit.

To review attribute information for entities in a DXF file, Shapefile or LandXML file that have feature types associated with them, select the entities in the map and then tap Review. If you selected more than one entity, select it from the list and tap Details.

From the map, you can select entities in the DXF, Shape, or LandXML files and then use them in other software functions, for example to perform a Cogo calculation, create a surface, or stakeout. For more information, seeDisplayable and selectable entities below.

You can export data from the job as DXF files or Shapefiles. See To export data from the job.

You can select entities (points, lines and arcs) in DXF, Shape, or LandXML files and stake them out.

1. Tap in the map toolbar and select the layers containing the entities to make them visible and selectable.
2. In the map, tap the entity to select it. For lines, tap near the end of the line to select the start of the line.
3. Tap Stakeout or press Enter on the controller to start stakeout.

For files that contain layers (that is, DXF, Shape, and LandXML), a name is generated for every selectable feature in the file. A code can be generated for every selectable feature within the file. This is derived from the attributes stored file; often, it is the name, code, and attributes of features in the original file.

For Shapefiles, the name is the first five characters of the Shapefile name, followed by a file index number, then a space and then the line number in the Shapefile where this feature is defined.

For DXF files, the name is the first 8 characters of the layer name, followed by a space and then the line number of the feature in the DXF file. For DXF files from Trimble Business Center the entity name, where present, is used.

For Surpac (.str) files (used only with the Mines app), a name is generated for every selectable feature in the file, and points and polylines are placed in layers based on their string numbers. Polylines are named with their counter within the string layer. If points have codes they are respected.

You can review a selectable feature in the map to find the file and layer name.