Leveling, Instruments of Leveling, Bearings (Surveying, ECE)
Digital Leveling · 2018. 4. 2. · Purpose+ • To+insure+leveling+observaons+meetFGCSC+...
Transcript of Digital Leveling · 2018. 4. 2. · Purpose+ • To+insure+leveling+observaons+meetFGCSC+...
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Digital Leveling
Bluebooking
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Purpose
• To insure leveling observa3ons meet FGCSC specifica3ons and procedures
• To reduce raw leveling data into standard .lvl format and finally to .hgz format for submission to NGS
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History
• Hand recording observa3ons • VERREC for field recording observa3ons • VFPROC (newrec, editor, abstra, etc.) for DOS • The digital level-‐Whalen soOware
• Translev – Windows based program
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Translev Program Overview
• Program installa3on and configura3on • File naming conven3ons
• Processing leveling data • Tools • Web tools
• Locus • Project submission
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Program Installa3on
• WindowsNT, Windows2000, WindowsXP Professional – Must have administra3ve privileges
• Version numbering-‐current 4.17.xx
• Remove old version before installing the new
• AOer installing, change permissions to read/write for all users
• Intermediate updates – all users
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File Naming Conven3ons
• Blue Book (.hgz) • Raw (.lev, .raw, .dat, .gsi) • Error Files (.err) • Abstracts (.abs) • Report (.rpt) • Lvl/Bok (.lvl, .bok) • New-‐minus-‐old (.nmo) • Sta3s3cs (.s^) • Running List (.rlst) • RI Load (_RI.txt)
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Flow Chart FLOW
CHART
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Transla3ng Raw Files
• Raw digital level formats -‐ .gsi, .dat, .lev • Other formats-‐TDS, Digiloop, xml
• Must have descrip3on file containing names, PIDs, eleva3ons and geographic posi3ons
• Entering defaults • Rod/Instrument suppor3ng files
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The .lvl File
• Edi3ng the .lvl file • Checking the .lvl file • Fixing errors in the .lvl file • Impor3ng the .lvl file to create the *40* series records in the .hgz file
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Impor3ng .lvl Files
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Crea3ng Abstracts
• Date discon3nuity errors • Rejec3ons • Rod/Instrument data • Inverse-‐running length differences • Refrac3on correc3ons • The Neighbor File • The Segment File
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Tools
• Plobng • Crea3ng sta3s3cal reports • Crea3ng new-‐minus-‐old reports • The RI editor • Astronomic posi3ons • Temperature profile predic3on • Renumbering • Finding problems in ASCII files • Time zone calculator
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Crea3ng a Plot
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Crea3ng a Sta3s3cal File
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Crea3ng the New-‐minus-‐old File
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Crea3ng a RI Load File
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Posi3on of the Sun and Moon
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Diagnosing Problems With ASCII Files
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The Time Zone Calculator
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Web Tools
• Aerial view (Google Earth)
• Level projects
• LOCUS
• Upda3ng files
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Level Projects for Marks
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Project Checklist
• .hgz file created and checked • .lvl file(s) created, checked, combined
• Abstract file created & checked • New-‐minus-‐old file created
• Ties checked • Project report created
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Files for Submi^al
• Descrip3on (.dsc) file • Combined raw (.gsi, .lev, or .dat) file
• Combined (.bok) file
• VERTOBS (.hgz) file • Abstract (.abs) file • Project report (.rpt) file • CD of photos