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Set Inverts from Survey Points

Writes coded as-built survey shots onto pipe-network structures : window the surveyed area, and every COGO point with a recognized field code pairs with the nearest structure in the window, the shot's elevation lands on the rim, the sump, or the connected pipe-end invert nearest the shot. Everything previews before anything is written.

Command VDCSETINVERTS · VDC Plans tab › Closeout panel
Writes coded as-built survey shots onto pipe-network structures: window the surveyed area, and every COGO point with a recognized field code pairs with the nearest structure in the window, the shot's elevation lands on the rim, the sump, or the connected pipe-end invert nearest the shot. Everything previews before anything is written.
Coded shots in a window → nearest structure → rim / sump / pipe-end inverts, previewed first. selection window (points + structures together) SSMH / CB pipe in pipe out × RIM 105.21 × SEI 95.72 × SEO 95.61 × SUMP 94.50 the SHOT'S ELEVATION is the value, the code says where it goes PREVIEW, nothing written yet ☑ Structure Change Old New Δ ☑ SSMH-4 Rim elevation 105.00 105.21 +0.21 ☑ SSMH-4 Invert, Pipe-7 (in) 95.80 95.72 −0.08 ☑ SSMH-4 Invert, Pipe-8 (out) 95.70 95.61 −0.09 ☐ SSMH-4 Sump elevation 94.50 94.50 , untick a row to leave it alone · skipped shots listed with reasons Apply Checked Changes → one Undo per window MATCHING shot → nearest structure center within the match radius (10 ft default) invert shot → closest FREE pipe end at that structure SEI prefers ends flowing IN · SEO prefers OUT · PI / DRI take either pipe end moves to centerline Z = invert + inner rise ÷ 2 gravity networks only · a surface-referenced rim reports its refusal per-row
Coded survey shots (elevation = the value)   Pipes / preview grid   Deltas & cautions   Skipped / no-op rows

What it does

  • Field codes (all editable): RIM → rim, SUMP/BOT → sump, SEI → invert in, SEO → invert out, PI/DRI/INV/IE → either direction, whole-word matched against the point's raw description (SEI matches SSMH SEI, never SEIS).
  • Window loop: window an area, preview, apply; keep windowing; Esc finishes with a run summary + funnel counts.
  • Conflict handling: duplicate rim/sump shots, nearest wins; two shots on one pipe end, closer wins; everything else lands in the skipped list with the reason.
  • CSV log: <drawing> - Set Inverts.csv, old, new, delta, point number, code, applied/failed per row.

Settings & options

  • Code lists per category, match radius (ft), and the rim / sump / inverts apply toggles, e.g. run inverts-only and leave surface-referenced rims alone.
  • Settings persist at %APPDATA%\VDC\AsBuilt\setinverts.json (override VDC_SETINVERTS_SETTINGS), separate from VDCASBUILT's file.
  • Notes: setting a pipe invert does not auto-move the structure sump, shoot the sump if you want it set; structures created first (design or as-built import), then the survey applied on top.

Dialog

Set Inverts from Survey Points dialog
Set Inverts from Survey Points, VDCSETINVERTS
Set Inverts from Survey Points dialog
Set Inverts from Survey Points, VDCSETINVERTS

When to use it

  • Working up a record drawing: the as-built survey is imported and the design structures need the field-measured rims, sumps, and inverts.
  • QC'ing a converted network against the shots - the preview grid shows every delta without applying anything (just cancel).
  • Any time typing inverts structure-by-structure through the Part Properties dialog is the alternative.

How to run it

  1. Run VDCSETINVERTS - the dialog opens: field-code lists per category, match radius (default 10 ft), what to write (rim / sump / inverts), CSV log. Click Pick Window + Preview.
  2. Window the surveyed area (both the points and the structures must be inside).
  3. Review the preview: structure, change, old -> new, delta, source point number and code. Untick any row you don't want. Apply Checked Changes.
  4. Keep windowing more areas; press ESC at the corner prompt to finish and read the run summary.

Options

  • Field codes: whole-word match against the point's RAW description - 'SEI' matches 'SSMH SEI' but never 'SEIS'. The shot's elevation is the value; the code only says what the shot is.
  • Match radius: a shot pairs with the nearest structure center within this distance (default 10 ft); invert shots then claim the closest free pipe end at that structure.
  • Rim / Sump / Inverts checkboxes: turn whole categories off for a pass - e.g. inverts only, leaving surface-referenced rims alone.
  • CSV log: '<drawing> - Set Inverts.csv' beside the DWG - one row per applied/failed change with old, new, delta, point number, and code.

Watch out for

  • Gravity networks only - pressure networks have no rim/sump/invert vocabulary and are skipped.
  • A rim that refuses to write is usually driven by a surface reference on the structure - clear the reference or untick rims.
  • Pipe inverts move the PIPE END (centerline = invert + inner rise / 2); connected-structure sumps do not auto-follow. Shoot the sump if you want it set.
  • Two shots claiming the same pipe end: the closer one wins, the other lands in the skipped list with the reason - it is never silently dropped.

Related: As-Built Record Drawing · Pipe QC · Point Dedup