This document describes the HydrOffice QC Tools 2 application (2.7). For the project page, go here.

2.2.7. Scan features

2.2.7.1. How To Use?

Scan features to ensure proper attribution.

  • Select the Scan features tab (Fig. 2.25) on the bottom of the QC Tools interface.
  • In Parameters:
    1. Turn the knob to select either the Office or Field profile.
    2. Turn the knob to select the applicable year as pertaining to required HSSD.
    3. Turn the knob to select the applicable location. (This effects the definition of WATLEV per the HSSD.)
    4. MHW value is required to check proper attribution of WATLEV per the HSSD. Enter MHW value as a positive number. (This value is not used for Great Lakes).
    5. When SORIND and SORDAT are set, the entered values are compared to the attribution of new and updated features.
  • In Execution, click Feature scan v8 (note that the ‘2019 test’ option is used to experiment with future requirements).
_images/feature_scan_interface.png

Fig. 2.25 The Scan features tab.

  • After computing, the output window opens automatically, and the results are shown (Fig. 2.26).
_images/feature_scan_results.png

Fig. 2.26 The output message at the end of Feature scan execution.

  • From the output window, drag-and-drop the output file(s) into the processing software to guide the review.
  • In addition, the results are printed to PDF for a documented summary.


2.2.7.2. How Does It Work?

The S-57 features are scanned to ensure proper attribution per the required year of HSSD.

The logic for the 2018 QC Tools feature scan is shown below. For previous years, refer to the HSSD for that year.

  • Check to ensure no feature redundancy.
  • All new and updated features except “$AREAS”, “$LINES”, “$CSYMB”, “$COMPS”, and “$TEXTS”.
    • Must have “SORIND” and “SORDAT” and that they are in the proper formats.
    • Check for agreement of “SORIND” and “SORDAT” values when entered in the Parameters.
  • Assigned features = all features with “asgnmt” = 2.
    • All Assigned features must have “descrp” and “remrks”.
  • New or Deleted features = all features with “descrp” = 1 or 3.
    • All New or Deleted features must have “remrks” and “recomd”.
  • Sounding features = all SOUNDG.
    • All Sounding features must have “TECSOU” and “QUASOU”.
  • DTONs = all features with “descrp” = 1 or 2, “sftype” = 3.
    • All DTONs must have “images”.
  • Wrecks = all WRECKS with “descrp” = 1 or 2.
    • All Wrecks must have “images”, “CATWRK”, “WATLEV”, “VALSOU”, “TECSOU”, and “QUASOU”.
  • Rocks = all UWTROC with “descrp” = 1 or 2.
    • All Rocks must have “WATLEV”, “VALSOU”, “QUASOU”, and “TECSOU”.
  • Obstructions = all OBSTRN with “descrp” = 1 or 2.
    • All Obstructions must have “images”, “WATLEV”, “VALSOU”, “QUASOU”, and “TECSOU”. [1]
  • Offshore platforms = all OFSPLF with “descrp” = 1 or 2.
    • All Offshore platforms must have “images”.
  • Seabed area points = all SBDARE with point geometry.
    • All Seabed area points must have “NATSUR”.
    • All Seabed area points must have as many “NATSUR” attributes as “NATQUA” and/or “COLOUR”.
    • All Seabed area points must have an allowable combination of “NATSUR” and “NATQUA”. [2]
  • Seabed area lines and areas = all SBDARE with line or area geometry.
    • All Seabed area lines and areas must have “NATSUR” and “WATLEV”.
  • Additional:
    • All MORFAC must have “CATMOR”.
    • All COALNE must have “CATCOA”.
    • All SLCONS must have “CATSLC”.
    • All LNDELV must have “ELEVAT”.
  • Additionally, if MHW flag is set, all features with VALSOU are checked for valid value and proper WATLEV attribution. [3]
  • All features with “ELEVAT” are checked for valid value.
  • All M_COVR must have “CATCOV”, “INFORM”, and “NINFOM”.
  • Specific for the Office Profile:
    • All features must have “onotes”.
    • All features must have “hsdrec”.
    • Checks for features that are prohibited by MCD (“DRGARE”, “LOGPON”, “PIPARE”, “PIPOHD”, “PIPSOL”, “DMPGRD” “LIGHTS”, “BOYLAT”, “BOYSAW”, “BOYSPP”, “DAYMAR”, “FOGSIG”, “CBLSUB”, “CBLARE”, “FAIRWY”, “RTPBCN”, “BOYISD”, “BOYINB”, “BOYCAR”, “CBLOHD”, “OBSTRN” with “CATOBS” = 5, MORFAC with CATMOR = 7.
    • All M_QUAL features must have “CATZOC”, “SURSTA”, “SUREND”, and “TECSOU”.

Footnotes

[1]Obstructions of “CATOBS” = 6 (foul area) do not require “images”. Line and area obstructions of “CATOBS” = 6 (foul area) should not have “VALSOU”.
[2]Allowable combinations of “NATSUR” and “NATQUA” are shown below.
NATQUA 1 2 3 4 5 6 7 8 9 10

N

A

T

S

U

R

 1         o o o o o o
2         o o o     o
3         o o o     o
4 o o o     o   o o o
5               o o  
6               o o  
7               o o  
8               o o  
9               o o  
11               o    
14       o            
17       o         o  
18               o o  

NATQUA: fine (1), medium (2), coarse(3), broken (4), sticky (5) soft (6), stiff (7), volcanic (8), calcareous (9), hard (10)

NATSUR: mud (1), clay (2), silt (3), sand (4), stone (5), gravel (6), pebbles (7), cobbles (8), rock (9), lava (11), coral (14), shells (17), boulder (18)

[3]Allowable combinations of “WATLEV” per “VALSOU” depending on location are shown below as stated in Appendix F in the 2018 Hydrographic Specifications and Deliverables.
_images/watlev_table.png