2. Data Conversion Can your data be read by me? Can my data be read by you? What software do you use? Are there any standards for data conversion?

3. Common File Formats: DXF SDTS USGS DEM USGS DLG ArcInfo EXPORTArcInfo IMPORT ArcView SHAPE files Standard Data Transfer System Digital Elevation Model Digital Line graph AutoCAD engineering format.shp.shx.dbf

4. NSDI sets standards!!! SDTS: Spatial Data Transfer System All Federal agencies produce data in this format. ArcInfo supports this standard: SDTSIMPORT Several processes must be run before you can run SDTSIMPORT. winzip Tar SDTSIMPORT SDTS2COV.aml SDTS2ARC.aml

5. AutoCAD format (DXF) Pretty straight forward BUT: If the AutoCAD file is in color and layers there may be some other files in the info directory that need to be joined. (X_code, A_code) Arc:\DXFINFO = inventories the layers in the DXF file Arc:\DXFARC = opens a dialogue to convert the layers

7. Adding a.DXF file to ArcView

10. USGS DEM Digital Elevation Model: Converts to a grid Is converted in both ArcInfo and ArcView DEMLATTICE or or DEMGRID DEMGRID SDTS2ARC.aml

11. Converting USGS DEM

18. ArcInfo formats To IMPORT (To open a coverage from someone else) a.e00 file format to a coverage, grid, or others: a.e00 file format to a coverage, grid, or others: IMPORT71 command

19. IMPORT71 Command

25. Converting Shape files Shape files must have at least 3 different files with the same name to make them valid. same name to make them valid..shp file.shx file.dbf file.prj file

26. Converting Shape files

31. Other formats: Adobe Illustrator Postscript RTL PIC to DXF PIC to DXF

32. www.nbmg.unr.edu

34. All the files are located at _instruct/ftp_files ftp the four files into your workspace and convert the first 4 of them to an Arc/Info format. assign1_g.dem assign1_topo.e00 counties.zip NV_100k.DXF Assign_g405_605.tif (Save this file for a February digitizing assignment.) Put the different files in an ArcView layout and print the results of your file conversions. Remember to have your name, date, and the exercise number in the layout. Exercise 2