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Boundary Analysis Using Autocad



Presentation made at NJSPLS Survcon in February 2006

Presentation made at NJSPLS Survcon in February 2006



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Boundary Analysis Using Autocad Presentation Transcript

  • 1. Boundary Analysis using AutoCAD J. R. Lemuel Morrison, PLS Mercator Land Surveying
  • 2. Background 1. Purpose: To Share CAD Tools Used in Boundary Analysis
    • 2. Terms:
    • Plots, System
    3. Jump in with Questions.
  • 3. Outline 1. Common Practice in Boundary Analysis 2. Procedure and Tools for Boundary Analysis 3. Examples
  • 4. . . . but there are drawbacks with CAD Common Practices Rotate Plots Translate Plots Hold Specifics Solve Misclosures Note ROWs & Hold Plot Deeds Plot Maps Annotate Note Misclosures Note Call outs (e.g. monts, pins, rivers etc) Plot Resolve Analysis
  • 5. Drawbacks
    • Plotting
    • Needs to be done by surveyor
    • Calls in a deed or map can be missed without an articulated system.
    • Plots need to be brought together in a block or layer to make selection sure & easy
    • Resolving & Analysis
    • Selection is difficult with layers
    • Revisions are difficult with blocks
    All of this needs to be clear to another or you later
  • 6. Procedure & Tools Key Requirements 1. Must Be Able to Delegate Tasks to Technicians and Track What They Did. 2. Must Be Able to Easily Select and Revise Plots, Maps and Systems 3. Must Be Able to Memorialize the Analysis
  • 7. Delegate Plotting
    • Differentiate Into Layers
      • Property Lines in . . .-LOTL-_PIQ-G
      • Text in . . .-_PIQ-T
      • Adjoiners (lines) in . . . –LOTL-ADJN-G (& –T)
      • Easements into one of two layers
        • . . . -ESMT-SRVT-G (& -T)
        • . . . –ESMT-DOMT-G (& -T)
      • Static Text for Bearings & Distances
    • 2. Make Notes About the Plot
        • Misclosure & POB
        • Details (e.g. Deed Book, Page, Owner)
        • Call Outs (e.g. Pins, Stones, Along a Road)
        • Ties to other Corners & Street Widths)
  • 8. Easily Select & Revise Plots are ordered into Groups New Selectable (check box) Selectable (change box) Find Name Add Remove
  • 9. Memorialize Analysis
    • Create A Drawing for the Sole Purpose of Plotting Deeds & Maps
      • We Use a Prefix of “zz” for Drawings That Are for Our Use Only.
    2. Make Notes And Annotation Regarding Rotation, What Was Held and Any Other Changes. 3. Create a Polyline of the Complete Boundary for the PIQ and Export Entire Set.
  • 10. Advantages
    • Differentiate Into Layers & Notes
      • Allows Technicians to Plot Deeds & Maps While Important Boundary Items Are Noted for the Surveyor’s Use.
      • Makes the Resulting Line Work Easy to Separate From Text.
      • Keeps a Record of Exactly the Calls in the Deed (e.g. static labels for bearings & deed).
  • 11. Advantages cont.
    • 2. Create Groups
        • Allow a Set to be “Glued” together to Make Rotation & Translation Easy.
        • Allow Selectability to be Turned Off so That Revisions Can Be Made.
        • Allow for Nested Groups.
  • 12. Advantages cont.
    • 3. Separate Boundary Drawing
      • Keeps All Notes and Plots Together in one File for Reference.
      • Keeps Internal Comments & “Proprietary” Analysis In-House. For us a prefix of “zz” means it does not go to clients for others.
      • Isolates Completed Boundary Either Into Its Own File for Xreference or to be Inserted Into the Primary Drawing.
  • 13. Examples Simple Deed Plots . . . but first, using the Group Command Complex Boundary System
  • 14. Using Groups Useful When the System Is Being Rotated Together While Individual Plots Are Being Moved Type “Group” at the Command line Make Some Groups Non-Selectable
  • 15. Using Groups Useful When Trying to Resolve Problems in Deeds and Lines Being Moved or Changed
    • Toggle Group Selection Globally
    • Selection Tab in Options
    • Ctrl+H or Ctrl+Shift+A
  • 16. Examples Adjoiners PIQ Esmt Descriptive Text PIQ moved as one
  • 17. Examples
    • Groups Were Essential on a Complex Boundary
    • Original ROW in 17 Maps
    • 1 mile project length
    • 163 Separate Fee & Easement Takings
    • Baseline Alignment
    • Pierhead/Bulkhead Line
    • Rail Road Crossing
    • Air Rights
    PH/BH Line Esmts Takings Alignment Entire System Moved as One
  • 18. Examples Almost all of the Takings did not Close or Match to the Baseline. Notes as Part of the Group Using Groups and Notes Was Essential to Track All of the Changes To the Takings. The Static Labels in the Groups were an Excellent Reminder of the Original Call in the Conveyance.
  • 19. Examples The Gaps Became Clear and Were Easy to Note on the Final Survey. The Survey Shows the Results, but our “zz” File Keeps Our Internal Work All Together for Easy & Clear Future Reference.
  • 20. Questions