University of North Texas
As-Built and Record Document Submittal Standards for Digital Files
I.
CAD
1. Target System
The target CAD system designated for UNT is AutoCAD Release 2010 or higher.
2. CAD File Format Standards
Autodesk AutoCAD 2010 Drawing format.
3. General Drawing Guidelines
a. All CAD elements must be drawn to the best possible dimensions available.
b. The coordinate system of the drawings will match the UNT Spatial Reference (see #4 below) and
drawn at a scale of 1:1, units of feet in decimal style.
c.
Two different drawings will be provided: one using surface values and the other using grid
values. The scale factor will be clearly identified on the drawing.
d. Drawings will conform to the UNT CAD Standards document.
e. All objects, layers and linetypes must be defined as “BYLAYER”.
f.
All blocks must be created on layer “0”. Nested blocks are not allowed. The color of the block
should be set to “By Block.”
g. Dimensioning styles should be consistent and associative. This gives internally accurate,
mathematically correct totals; and changes in dimensioned entities are automatically reflected in
the dimension text. In some instances where existing conditions are being dimensioned,
overriding the AutoCAD-generated dimensions may be desired. You may do this by “exploding”
the dimension blocks or disabling the AutoCAD dimension variable (Dimaso) for associative
dimensioning.
h. No submission of any CAD drawing deliverable will be acceptable if it contains
references to external source drawings (Xrefs). All externally referenced data sources that
were used during the CAD drawing production phase should be inserted and bound, resulting in a
self-contained drawing file. All bound layers should be renamed to the original layer name.
i.
Drawing and extents must be checked to ensure that there are no objects outside the drawing
limits. All drawings shall be submitted with the drawing display zoomed to the drawing extents.
j.
The purge command should be invoked to delete all unreferenced blocks, layers and linetypes.
4. Spatial Reference
NOTE:
In cases where the CORS96 revision of the NAD83 datum is unavailable as a reference, NAD83
may be used in its place.
Horizontal Datum:
Vertical Datum:
NAD83 CORS96 (EPOCH:2002.0000)
NAVD88 (GEOID03)
Projected Coordinate System:
Projection:
False Easting:
False Northing:
Central Meridian:
Standard Parallel 1:
Standard Parallel 2:
Latitude of Origin:
Linear Unit:
Vertical Unit:
II.
State Plane Texas North Central FIPS 4202 FtUS
Lambert Conformal Conic
1,968,500.0000
6,561,666.6667
-98.5000
32.1333
33.9667
31.6667
US Survey Foot
US Survey Foot
GIS
1. Target System
The target GIS system designated for UNT is ESRI ArcGIS Desktop Release 9.3.x or higher.
2. GIS File Format Standard
ESRI Shapefile (.shp)
3. General Guidelines
a. All GIS features must be created using the best possible dimensions and data available.
b. Grid coordinates should be used for shapefile creation. The surface to grid scale factor will be
provided in accompanying metadata documentation.
c.
The coordinate system of the data will match the UNT Spatial Reference (see #4 below).
4. Spatial Reference
NOTE:
In cases where the CORS96 revision of the NAD83 datum is unavailable as a reference, NAD83
may be used in its place.
Horizontal Datum:
Vertical Datum:
NAD83 CORS96 (EPOCH:2002.0000)
NAVD88 (GEOID03)
Projected Coordinate System:
Projection:
False Easting:
False Northing:
Central Meridian:
Standard Parallel 1:
Standard Parallel 2:
Latitude of Origin:
Linear Unit:
Vertical Unit:
State Plane Texas North Central FIPS 4202 FtUS
Lambert Conformal Conic
1,968,500.0000
6,561,666.6667
-98.5000
32.1333
33.9667
31.6667
US Survey Foot
US Survey Foot