Data ConversionData 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?

Common File Formats:Common File Formats:

DXFSDTS

USGS DEM

USGS DLG

ArcInfo EXPORT ArcInfo IMPORT

ArcView SHAPE files

Standard Data Transfer System

Digital Elevation Model

Digital Line graph

AutoCAD engineering format

.shp .shx .dbf

NSDI sets standards!!!NSDI sets standards!!!

SDTS: Spatial Data Transfer SystemSpatial 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

AutoCAD format (DXF)

Pretty straight forward BUT:

If the AutoCAD file is in color and layersthere 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

Adding a .DXF file to ArcView

Adding a .DXF file to ArcView

Adding a .DXF file to ArcView

USGS DEMUSGS DEM

Digital Elevation Model:Digital Elevation Model:

Converts to a gridConverts to a grid

Is converted in both ArcInfo and ArcViewIs converted in both ArcInfo and ArcViewDEMLATTICEDEMLATTICE oror DEMGRIDDEMGRID

SDTS2ARC.amlSDTS2ARC.aml

Converting USGS DEMConverting USGS DEM

Converting USGS DEMConverting USGS DEM

Converting USGS DEMConverting USGS DEM

Converting USGS DEMConverting USGS DEM

Converting USGS DEMConverting USGS DEM

Converting USGS DEMConverting USGS DEM

Converting USGS DEMConverting USGS DEM

ArcInfo formatsArcInfo formats

To IMPORT To IMPORT (To open a coverage from someone else)(To open a coverage from someone else)

a a .e00.e00 file format to a coverage, grid, or others: file format to a coverage, grid, or others:

IMPORT71 commandIMPORT71 command

IMPORT71 CommandIMPORT71 Command

IMPORT71 CommandIMPORT71 Command

IMPORT71 CommandIMPORT71 Command

IMPORT71 CommandIMPORT71 Command

IMPORT71 CommandIMPORT71 Command

IMPORT71 CommandIMPORT71 Command

Converting Shape filesConverting Shape files

Shape files must have at least 3 different files with theShape files must have at least 3 different files with the same name to make them valid.same name to make them valid.

.shp file.shp file.shx file .shx file

.dbf file.dbf file

.prj file.prj file

Converting Shape filesConverting Shape files

Converting Shape filesConverting Shape files

Converting Shape filesConverting Shape files

Converting Shape filesConverting Shape files

Converting Shape filesConverting Shape files

Other formats:Other formats:

Adobe IllustratorAdobe Illustrator

PostscriptPostscript

RTLRTL

PIC to DXFPIC to DXF

www.nbmg.unr.edu

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.demassign1_topo.e00counties.zipNV_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