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Cadastral fabrics in a geodatabase in Informix

Cadastral fabrics in a geodatabase in Informix

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NOTE: Requires ArcGIS Survey Analyst extension

Cadastral fabrics are parcel datasets that are created and maintained using data from survey plans. Fabric editing tools in Survey Analyst facilitate the creation of parcels from recorded boundary line measurements from plans or plats.

A cadastral fabric is a continuous, integrated surface of connected parcels, representing the complete survey record for an area of land.

Dimensions in the cadastral fabric are edited in response to a change in the survey record; for example, a parcel split or resurvey. Parcel boundary line dimensions in the cadastral fabric match the dimensions on the survey record. Parcels that are edited or replaced by new survey records are retained as historic, thus always preserving the original survey record. Parcel polygons are also linked to each other by connection lines. Because every parcel is either linked or connected, a seamless network of connected parcel boundaries, or cadastral fabric, is formed. Parcel lines have endpoints, which are the parcel corners. Parcel corner points are common between adjacent parcel boundaries, establishing connectivity and maintaining topological integrity in the network.

For more information on cadastral fabrics and the cadastral editor, start with the topic An overview of Survey Analyst - Cadastral Editor.

Cadastral fabrics in ArcCatalog

In the Catalog tree, feature datasets that contain a cadastral fabric in an Informix database management system (DBMS) are like any other feature dataset except they contain a cadastral fabric.

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Cadastral fabrics in an Informix DBMS

Several tables are created in the database to track information about cadastral fabrics. Tables are created in the schema of the user who creates a cadastral fabric. The tables are as follows:

cadastralfabric_accuracy

The cadastralfabric_accuracy table stores the accuracy categories and statistics, which are used in least-squares adjustments. This table is not versioned when the cadastral fabric is registered as versioned.


Field name Field type Description
objectid integer The unique identifier of the record

NOT NULL
brgsd numeric The standard deviation of bearings
distsd numeric The standard deviation of distances
ppm numeric Parts per million value
category integer Indicates the accuracy level
description varchar(256) A description of the category

cadastralfabrics_adjustments

The cadastralfabrics_adjustments table stores adjustment levels (sequence IDs) and their corresponding adjustment dates.


Field name Field type Description
objectid integer Unique identifier of the feature

NOT NULL
adjustmentdate timestamp Date the adjustment was inserted
vectorcount integer Number of vectors produced by the adjustment
adjlevel integer Sequential number (ordering) of adjustment relative to other adjustments
jobid integer ID of the job that contained the adjustment
shape integer

cadastralfabric_control

The cadastralfabric_control table stores information about control points on the cadastral fabric.


Field name Field type Description
objectid integer Unique identifier of the control point

NOT NULL
x numeric The x-coordinate of the control point; fixed

NOT NULL
y numeric The y-coordinate of the control point; fixed

NOT NULL
z numeric The z-coordinate of the control point; fixed
name varchar(50) The name of the control point
pointid integer The ID of the corresponding fabric point
accuracyxy numeric The horizontal positional accuracy of the control point; for reference only
accuracyz numeric The vertical accuracy of the control point; for reference only
surveydate timestamp The date the control point was established
active integer Indicates whether or not a control point is active in an adjustment
type integer Used for custom subtyping
shape st_point The geometry of the control point

cadastralfabric_history

The cadastralfabric_history table stores nonspatial parcel lineage information. This table supports textual lineage tracking through the legal and system dates.


Field name Field type Description
objectid integer Unique identifier of the record

NOT NULL
childparcelid integer The child parcel ID or the ID of the child of this parent
parentparcelid integer Parcel ID of the parent parcel (or parcels) of this child
systemstartdate timestamp The date of the system transaction that created the child
legalstartdate timestamp The date of the legal transaction that created the child

cadastralfabric_idsequencer

The cadastralfabric_idsequencer table is used internally to ensure unique IDs are used across all tables in the cadastral fabric.


Field name Field type Description
objectid integer Unique identifier of the record

cadastralfabric_jobobjects

The cadastralfabric_jobobjects table contains information needed to manage database locks held on objects by jobs. This table is not versioned when the cadastral fabric is registered as versioned.


Field name Field type Description
objectid integer Unique identifier of the feature

NOT NULL
jobid integer ID of the job holding the lock
objecttype integer Type of object that is locked
jobfeatureid integer The object ID of the feature that is locked
role integer Type of lock held—optimistic or pessimistic; edit parcels use pessimistic locks
Edit integer

cadastralfabric_jobs

The cadastralfabric_jobs table stores information about the cadastral jobs operating on the cadastral fabric. This table is not versioned when the cadastral fabric is registered as versioned.


Field name Field type Description
objectid integer Unique identifier of the feature

NOT NULL
name varchar(64) The cadastral job identifier or name
description varchar(64) User-defined description of the cadastral job
locked integer Indicates the presense of locked parcels in the job parcels list
createdate timestamp The date the job was created
modifieddate timestamp The date the job was last modified
commitdate timestamp The date the job was committed to the database
owner varchar(64) The owner of the job
status integer The status of the job
systemstate integer The system-maintained status of a job
version varchar(64) The geodatabase version holding the job
lockmachine varchar(128) Name of the machine currently editing the job
lockpid integer System field containing the lock process ID; maintains single-use editing on the job

cadastralfabric_levels

The cadastralfabric_levels table stores information about associations between cadastral fabrics and their associated feature classes.


Field name Field type Description
objectid integer Unique identifier of the record
featureclassid integer The ID of the associated feature class
adjlevel integer The adjustment level last applied to the feature class
cfid integer The source cadastral fabric ID

cadastralfabric_linepoints

The cadastralfabric_linepoints table stores information on points in one parcel that are constrained to lie on the boundary of another parcel without a shared point on that boundary.


Field name Field type Description
objectid integer Unique identifier of the point

NOT NULL
parcelid integer The ID of the parcel that has the boundary line
frompointid integer The ID of the FromPoint of the boundary line
topointid integer The ID of the ToPoint of the boundary line
linepointid integer ID of the point that must lie on the boundary
shape st_point Duplicate of the point to improve drawing performance

cadastralfabric_lines

The cadastralfabric_lines table stores information on all lines of a cadastral fabric, such as boundary, easements, and connections.


Field name Field type Description
objectid integer Unique identifier of the line

NOT NULL
calculated integer Indicates whether dimensions inversed from shape geometry (true/1) or not (false/0)
parcelid integer The ID of the parcel that contains the line

NOT NULL
sequence integer A number indicating the order in which the line was entered in the parcel traverse

NOT NULL
frompointid integer The ID of the fabric point where the line begins

NOT NULL
topointid integer The ID of the fabric point where the line ends

NOT NULL
bearing numeric The bearing of the line from record or compilation

NOT NULL
distance numeric The length of the line from record or compilation

NOT NULL
type integer Used for custom subtyping
category integer High-level system category for line

NOT NULL
radius numeric The distance from the center point to the arc of the circular curve
arclength numeric The length of the arc of a circular curve
delta numeric The angle between the tangents or the angle at the center of a curve
centerpointid integer The ID of the center point of a circular arc
historical integer True (1) if the line's associated parcel is historic; otherwise, false (0)
radialbearing numeric The bearing of the radius of the circular curve
tangentbearing numeric The bearing of the tangent starting at the from point
lineparameters integer The curve parameters
accuracy integer The accuracy category of the line; can be inherited from the plan or overridden
computedminusobserved numeric The computed measurements (such as bearing and distance) compared with the field observation
internalangle numeric Based on a backsight bearing or basis of bearing
referenceobject integer The reference object for a particular point
shape st_geometry Line geometry

cadastralfabric_parcels

The cadastralfabric_parcels table stores information about the cadastral fabric land units, which are referred to as parcels. These may be subtyped for modeling heirarchical land categories.


Field name Field type Description
objectid integer Unique identifier of the feature

NOT NULL
joined integer Join status; if not joined, not part of the fabric

1 = joined

NOT NULL
planid integer Identifier of the plan containing the parcel record

NOT NULL
name varchar(50) User-assigned name of the parcel
type integer Used for custom subtypes to support categories of land units
statedarea varchar(50) The area of the parcel stated on the plan or legal record
compiled integer Indicates if a parcel is compiled (true/1) or not (false/0)
historical integer Indicates whether a parcel has been retired (true/1) or not (false/2)
systemstartdate timestamp The date of the system transaction that created the parcel

NOT NULL
systemenddate timestamp The date of the system transaction that retired the parcel
legalstartdate timestamp The date of the legal transaction that created the parcel
legalenddate timestamp The date of the legal transaction that retired the parcel
groupid integer This number set if part of an unjoined group
accuracy integer The accuracy category of measurements, usually taken from the plan
rotation numeric Rotation from join process
scale numeric Scale from join process
unclosed integer Indicates whether a parcel is a closed traverse (true/1) or not (false/0)

NOT NULL
miscloseratio numeric Ration of misclose distance to parcel perimeter
misclosedistance numeric Distance necessary to close the parcel
misclosebearing numeric Bearing necessary to close the parcel
construction integer Indicates whether the parcel is a construction (true/1) or not (false/0)
shapestderrore numeric Overall parcel distortion (easting)
shapestderrorn numeric Overall parcel distortion (northing)
backsightbearing numeric Direction of line to backsight point
shape st_geometry Parcel geometry

cadastralfabric_plans

The cadastralfabric_plans table stores the information from the document of record submitted in evidence of land transactions.


Field name Field type Description
objectid integer Unique identifier of the record

NOT NULL
name varchar(128) The name of the plan or legal document
description varchar(1024) A description of the document
surveyor varchar(50) Name of the surveyor of record
company varchar(50) The survey company or organization of record
surveydate timestamp Date of survey
legaldate timestamp Date survey or document was recorded
angleunits integer Bearing units of record
areaunits integer Area units of record
distanceunits integer Distance units of record
directionformat integer Direction format of record
lineparameters integer Line definition parameters from record
distanceatground integer Indicates if record distances are ground (true/1) or grid (false/0)
combinedgridfactor numeric Scale factor of grid
truemidbrg integer Indicates if astronomic azimuths are used (true/1) or not (false/0)
accuracy integer Spatial accuracy of plan, set to an accuracy category
internalangles integer Indicates whether or not internal angles are used

1 = true

2 = false

cadastral_fabric_points

The cadastral_fabric_points table stores information about the set of points that exists for each fabric and the center points of curves.


Field name Field type Description
objectid integer Unique identifier of the point

NOT NULL
x numeric X-coordinate from join and least-squares adjustment

NOT NULL
y numeric Y-coordinate from join and least-squares adjustment

NOT NULL
z numeric Z-coordinate from join and least-squares adjustment
type integer Used for custom subtyping
category integer Enumeration of the system categories
name varchar(32) Point name
historical integer Indicates whether the parcel lines are historic (true/1) or not (false/0)
systemstartdate timestamp Date of the system transaction that created the point

NOT NULL
systemenddate timestamp Date of the system transaction that retired the point
legalstartdate timestamp Date of the legal transaction that created the point; usually from legal record
legalenddate timestamp Date of legal transaction that retired the point
centerpoint integer Set to true (1) if the point is a center point
maxdn numeric Maximum northing shift
maxde numeric Maximum easting shift
shape st_point Point geometry

cadastralfabric_vectors

The cadastralfabric_vectors table stores displacement vectors between the old and new coordinates of an adjusted point. Vectors are grouped logically by an adjustment level that corresponds to an adjustment date.


Field name Field type Description
objectid integer Unique identifier of the feature

NOT NULL
fromx numeric The x-coordinate of the point before adjusting
fromy numeric The y-coordinate of the point before adjusting
tox numeric The x-coordinate of the point after adjusting
toy numeric The y-coordinate of the point after adjusting
pointid integer Unique identifier of the point adjusted
adjlevel integer Adjustment level that contains the vector

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Cadastral fabrics in an XML document

Within an XML workspace document, cadastral fabrics are denoted with a data lement tag indicating the object is a cadastral fabric, as in the following example:

<DataElement xsi:type="esri:DECadastralFabric">
 <DSID>-1</DSID> 
  <Versioned>false</Versioned> 
  <CanVersion>false</CanVersion> 
  <Extent xsi:type="esri:EnvelopeN">
  <XMin>6183000.00012755</XMin> 
  <YMin>2278000.00003956</YMin> 
  <XMax>6188999.99993855</XMax> 
  <YMax>2281999.99991356</YMax> 
  <SpatialReference xsi:type="esri:ProjectedCoordinateSystem">
  <WKT>PROJCS["NAD_1983_StatePlane_California_VI_FIPS_0406_Feet",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",6561666.666666666],PARAMETER["False_Northing",1640416.666666667],PARAMETER["Central_Meridian",-116.25],PARAMETER["Standard_Parallel_1",32.78333333333333],PARAMETER["Standard_Parallel_2",33.88333333333333],PARAMETER["Latitude_Of_Origin",32.16666666666666],UNIT["Foot_US",0.3048006096012192]]</WKT> 
  <XOrigin>-118608811.296</XOrigin> 
  <YOrigin>-91259488.671</YOrigin> 
  <XYScale>3048.00609601219</XYScale> 
  <ZOrigin>-100000</ZOrigin> 
  <ZScale>10000</ZScale> 
  <MOrigin>-100000</MOrigin> 
  <MScale>10000</MScale> 
  <XYTolerance>3.28083333333333E-03</XYTolerance> 
  <ZTolerance>0.001</ZTolerance> 
  <MTolerance>0.001</MTolerance> 
  <HighPrecision>true</HighPrecision> 
  </SpatialReference>
  </Extent>
  <SpatialReference xsi:type="esri:ProjectedCoordinateSystem">
  <WKT>PROJCS["NAD_1983_StatePlane_California_VI_FIPS_0406_Feet",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",6561666.666666666],PARAMETER["False_Northing",1640416.666666667],PARAMETER["Central_Meridian",-116.25],PARAMETER["Standard_Parallel_1",32.78333333333333],PARAMETER["Standard_Parallel_2",33.88333333333333],PARAMETER["Latitude_Of_Origin",32.16666666666666],UNIT["Foot_US",0.3048006096012192]]</WKT> 
  <XOrigin>-118608811.296</XOrigin> 
  <YOrigin>-91259488.671</YOrigin> 
  <XYScale>3048.00609601219</XYScale> 
  <ZOrigin>-100000</ZOrigin> 
  <ZScale>10000</ZScale> 
  <MOrigin>-100000</MOrigin> 
  <MScale>10000</MScale> 
  <XYTolerance>3.28083333333333E-03</XYTolerance> 
  <ZTolerance>0.001</ZTolerance> 
  <MTolerance>0.001</MTolerance> 
  <HighPrecision>true</HighPrecision> 
  </SpatialReference>
  <ConfigurationKeyword>DEFAULTS</ConfigurationKeyword> 
  <DefaultAccuracy>4</DefaultAccuracy> 
  <CadastralFieldEditsCollection xsi:type="esri:ArrayOfCadastralFieldEdits" /> 
</DataElement>

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See Also

  • Feature datasets in a geodatabase in Informix