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Section Centers a 
1/4 Section Corners A 
Corporate Boundaries  -------- 
Figure 3. Roland corporate boundaries. (Not to scale) 
of primary use to those concerned with boundary 
location and control, while Ryan's First Addition 
data provides information useful for more 
expanded areas of municipal engineering, tax 
assessment, and property purchasing. 
Specific attributes available for processing 
within Britson's Second Addition are: 
(1) owner of each lot in the subdivision. 
(2) the street address for each lot. 
(3) the area and perimeter of each lot. 
(4) the surface and projection state plane 
coordinates of all lot corners. 
(5) the bearing of all lot lines. 
(6) the current assessed value of each lot. 
The following attributes are available for 
processing within Ryan's First Addition: 
1. the owner of each lot. 
2. the street address of each lot. 
3. the number of bedrooms in each home. 
4. the surface state plane coordinates for 
fire hydrants and power poles. 
5. the type of pipe, diameter of pipe, 
average percent slope, and minimum 
depth of coverage for sewer and water 
pipes. 
The attribute data were gathered from several 
locations. The city's utility department provided 
a copy of the plat for Britson's Second Addition 
as well as plan and profile drawings for 
underground utilities. A copy of the plat for the 
other subdivision was obtained from the county 
recorder; the county assessor provided other 
information. 
629 
ULTIMAP GIS SOFTWARE 
The UltiMap program meets all software 
requirements of a GIS to preprocess data, 
manage data, manipulate and analyze data, and 
to provide for product generation. The user 
interface is primarily icon driven with some 
keyboard entry required. 
The program consists of eight modules. Four of 
these modules are application modules such as 
Coordinate Geometry (COGO) module and a 
Road Design System. These modules provide 
powerful computation capability to produce data 
for inclusion in GIS or for separate use. The 
other four are discussed below. 
The Interactive Graphics System (IGS) module is 
the graphics module and is the heart of the 
system. This module provides a fairly 
sophisticated level of Computer Assisted 
Drafting and Design (CADD) capability. 
Commands within the IGS module are organized 
under a chapter and page type convention such 
that every command is entered in an 
alphanumeric fashion. One major difference 
between the UltiMap IGS module and a standard 
CADD program such as AutoCAD is that there 
are no layers in IGS. Each entity drawn is 
assigned a specific symbol definition within what 
is called a symbol dictionary. The visibility of 
individual symbol definitions is toggled on or off 
versus layers in AutoCAD. As part of the GIS 
capability, each entity drawn in IGS is assigned 
a reference number which can serve as part of a 
process to tie that particular entity to a record in 
the data base.