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DATA BASES, SMALL SYSTEMS SESSIONS Introduction ................. 235 Coordinate Free Cartography ......... 236 Marvin S. White Jr. and Patricia E. Griffin The Data Structure of BASIS ......... 246 Paul M. Wilson and Donald A. Olmstead 234
DATA BASES, SMALL SYSTEMS There were two Small Data Base sessions, both chaired by Carl Youngmann of the University of Washington. In the first session, Youngmann demonstrated his CAC/APPLE system. (Paper not included in proceedings.) His system consists of a set of computer-assisted cartog raphy programs for the APPLE II computer. Although the resolution of the APPLE system is not particularly high, Youngmann considers it good enough to use for demos and community groups. The APPLE also has three basic advan tages: speed of computation, ease of use, and inter active capabilities. Youngmann has implemented a stat istical graphics package and discontinuous mapping procedures for choropleth maps on the APPLE. He also intends to implement simple continuous mapping proce dures and interactive geographic entry. In the latter part of the first session Richard Phillips of the University of Michigan described an emulator which he is running on the APPLE II computer. This emulator emulates Tektronix type vector graphics on the raster style APPLE. Output which normally would appear on a Tektronix can thus be shown on the APPLE by feeding it through the emulator. He indicated the basic limitation of the APPLE for this purpose is its low resolution. However, the distinct advantages of the APPLE are: fast area filling capabilities, color, and the ability to connect a plotter to get hard copy output. Marvin White and Patricia E. Griffin presented a paper entitled "Coordinate Free Cartography". In this paper it is demonstrated that by using coordinate free carto graphy, one can test a network for topological correc tives without attaching x and y coordinate values. Paul M. Wilson and Donald A. Olmstead presented a paper entitled "The Data Structure of BASIS". BASIS is a grid cell system containing data about the San Fran- sisco Bay region. Wilson and Olmstead discuss some of the efficient coding strategies used to implement this large data base on a mini computer. 235
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'/1UTO QIRTO IV Proceedings of the
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SPONSORED BY: Proceedings of the Vo
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FOREWORD This is the fourth confere
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PREFACE The technical articles cont
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The Use of Computer Generated Maps
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Interactive Computer Mapping ......
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A Formal Model of a Cartographic In
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PHOTOGRAMMETRY SESSIONS Introductio
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William 0. Lucoff of Cal. State at
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widths may be varied at random from
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command codes to the minicomputer a
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Figure 2 Computer Controller EXPOSU
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— 1 X 0 u_ ABCDE M X ^ ^j to C£
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Figure 12 Portion of 48"X60" Chart
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3. THE GAS SYSTEM Chicago Aerial Su
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mode and guides the operator throug
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Figure 1 - Input Edit Figure 2 - Li
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Figure 7 - illegal Elevations Figur
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L Figure 11-Matching Between Models
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1. Street trees are defined as any
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exists between the calculated data
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Trom a conversation with Robert Lee
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II. The Alternatives Various conven
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With error correction as the final
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1. Introduction PRACTICAL EXPERIENC
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instruments with digital mapping te
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the patterns and stores the digital
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o Provides the capability to conver
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II.System Description Figure 1 is a
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Status signals are located on the m
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which have been digitized and recor
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Figure 4 Digitized/Recorded Image C
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IMAGE PROCESSING The Image Processi
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II. Background The work reported in
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coordinates from topographic maps.
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polation techniques are available i
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egistrations. In all areas where re
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THE INTERACTIVE IMAGE SYSTEM FOR TH
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The operator may type in commands w
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input, each request being terminate
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The language elements invoke indepe
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IMAGE PROCESSING AND NAVIGATION FOR
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4. Image Acquisition and Amplitude
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disc); - the satellite spin-speed w
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line start. These parameters are se
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PRACTICAL APPLICATIONS FOR DIGITAL
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need for early warning of impending
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In order to manipulate classes of f
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depends mainly on the density of fe
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A DATA STRUCTURE FOR A RASTER MAP D
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FIG. 2. A border with indicated max
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pointers associated with the max-po
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y-max 1 z \7 'x-min \x-max 3 x-min
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DIGITAL TERRAIN MODELS SESSIONS Int
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Their programs have been developed
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that the purpose of the digital ter
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equirement for such a program is th
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equivalent to locating the lines of
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Brassel, K.,1974,"A Model of Americ
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It is not the intention of this pap
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One feature in this should be empha
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neighbouring data points to estimat
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Lawson, C.L., 1977. Software for C-
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EDIT SYSTEM HARDWARE The IPIN Edit
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Each edit terminal will also contai
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FIGURE 2. PLOT OF GEOMORPHIC DATA 1
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a 0° 0 0 + 0 o 0 FIGURE 4. SELECTE
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FIGURE 5. CONTOUR PLOT OF INTERPOLA
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absorbed in the merger if the diffe
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To an every-increasing degree, the
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potential storage volumes of depres
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Soil type sand, Vegetation trees -^
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References Brnjac, M; Carlsen, L; M
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is particularly important to allow
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(b) If Z-coordinate of the vertex B
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Figure 3a. TIN DTM Projection Figur
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URBAN MAPPING SESSIONS Introduction
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Norfolk, and Hampton Virginia. Part
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MAPPING SERVICES IN FAIRFAX COUNTY,
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If errors are detected they are res
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Some are only printed as the stocks
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URBAN MAPPING AND RELATED AUTOMATED
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tersection matching program was wri
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The selection of coding schemes wil
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cartography and are firmly committe
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main purpose of this paper. Five of
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The project was undertaken specific
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play and analysis. By breaking from
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The operating system environment is
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INTERACTIVE COMPUTER MAPPING* Thoma
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- By displaying variables in map fo
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with a start - head- and an end -ta
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Rovner, P.D and Feldman, J.A., 1968
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eading this complex type of map, (2
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y a law pertaining to persons 65 an
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So far the analysis has been concer
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enta separation to the family age g
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Mortality maps have been widely use
Page 199 and 200: 1970 population values, growth rate
Page 201 and 202: CANCER MORTALITY BY CENSUS TRACT 19
Page 203 and 204: References Burbank, F., Epidemiolog
Page 205 and 206: Computer graphics is changing all t
Page 207 and 208: time to define the uses to which th
Page 209 and 210: tually complete - we had a meeting
Page 211 and 212: EXPLORATION AND UTILITY SYSTEMS SES
Page 213 and 214: AUTOMATED MAPPING AND FACILITIES MA
Page 215 and 216: turned out to be a boon for automat
Page 217 and 218: As an example, one utility had five
Page 219 and 220: suburb of Denver, is a group of eng
Page 221 and 222: Introduction CADAE * (COMPUTER AIDE
Page 223 and 224: using CADAE, but the convenience an
Page 225 and 226: fractions of an inch to 1/64 or in
Page 227 and 228: Now that the viability of CADAE has
Page 229 and 230: "LANDFORM" LAND ANALYSIS AND DISPLA
Page 231 and 232: (2) Information Display (3) Design
Page 233 and 234: scales, and perspective views can b
Page 235 and 236: ENGINEERING APPLICATIONS OF DIGITAL
Page 237 and 238: Once the Map Grids are complete, th
Page 239 and 240: TOPOLOGICAL MODELS FOR ARCHITECTURA
Page 241 and 242: dimension, may be oriented in two w
Page 243 and 244: 1-cells, and the 0-cells on the bou
Page 245 and 246: IX. One and two-dimensional structu
Page 247 and 248: looking from c^ to c9 near side far
Page 249: Figure 4 File Layout for Model of a
Page 253 and 254: The consistency requirements are se
Page 255 and 256: A 0-cell is A 1-cell is a A 2-cell
Page 257 and 258: is a 2-ditnensional surface, and pr
Page 259 and 260: Our Algorithm From the topological
Page 261 and 262: (a) graph \ (b) disk: node 5 lO (c)
Page 263 and 264: as earthquake damage assessment, lo
Page 265 and 266: data is relatively simple. Problems
Page 267 and 268: In theory, the structure of such a
Page 269 and 270: BASIS resides on a minicomputer ope
Page 271 and 272: DATA BASES, LARGE SYSTEMS SESSIONS
Page 273 and 274: Robert Haralick and Linda Shapiro o
Page 275 and 276: COMPUTER-ASSISTED ENVIRONMENTAL DAT
Page 277 and 278: System (GRIDS) and Calma Mapping Sy
Page 279 and 280: Results Space does not permit the r
Page 281 and 282: encoded data appear to be very sign
Page 283 and 284: NATIONAL OCEAN SURVEY—AUTOMATED I
Page 285 and 286: centered at NOS Headquarters, but r
Page 287 and 288: separately. There are also five of
Page 289 and 290: graphic, chart base, and labels may
Page 291 and 292: Introduction GEOMODEL - INTEGRATED
Page 293 and 294: ace, income, miles of bus-lines, or
Page 295 and 296: phrase pointer Figure Ib. 1-cell Fe
Page 297 and 298: Implementation The development plan
Page 299 and 300: ECQBASE OF BRITAIN: status report o
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1. Coastlines (high water mark) inc
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much statistical data, e.g. , from
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Figure 1 Scale of digitisation of p
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I. Introduction A DATA STRUCTURE FO
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One obvious division of the state i
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Figure 2 illustrates this structure
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Raster or grid form is another form
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For each type of spatial data struc
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The following questions are possibl
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4. Freeman, H., "Computer Processin
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also be generalized to remove exces
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Figure I. On the left, a map of zon
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The other important role the error
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REFERENCES Corbett, J. (1975). "Top
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The fundamental building block of a
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discussed previously are of the COD
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[2] Bonczek, R. H.; Holsapple, C. W
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REFERENCE BASE REFERENCE LINES NAP
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Polygon data, in contrast, results
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An alternative to grid resampling i
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Should this table already contain a
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Murray, F. W. (1968) A_ Method of O
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ships between units, and thereby fe
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ture, encode, reduce, edit, format,
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could be assigned to each 40-acre g
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more on chain encoding rather than
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RIDS-CURRENT TECHNOLOGY IN RESOURCE
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The RID system is designed to overl
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Data Input Once the relevant data h
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Data Manipulation Timber Contour Cu
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THE DEVELOPMENT OF A NATIONAL SMALL
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III. The National Small-Scale Data
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cally-structured data base is under
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Appendix A: HAWAII: Hydrography U>
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INTERACTIVE CARTOGRAPHY, SMALL SYST
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options but it also extends our res
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sis techniques) information not pre
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media forming input to the system i
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D. CIS Data Base Limitations There
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input space into a set of 8 x 8 sub
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esolution of the system and the num
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impractical to use this terminal fo
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and heat from power plants into wat
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The present and future Low-resoluti
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Development of GIMMAP at the Kansas
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The second area of development is a
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GROUP Fig. 1
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MOVING INTERACTIVE THEMATIC MAPPING
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directives. Both map and data files
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Parameters are commonly of the form
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7. Conclusions In the s:!x months C
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INTERACTIVE CARTOGRAPHY, LARGE SYST
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developed at LBL has been particula
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printed at a common scale and forma
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1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.
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V. Production Sequence The most imp
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1. Introduction MULTIPLE SYSTEM INT
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measurements during map compilation
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Photogrammetric —— > Digitizer/
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intersections. These are a few exam
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Introduction ENERGY ANALYSIS BY MEA
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enabled us to undertake runs consit
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Cost (k $) (D CD M M
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which seek to incorporate powerful
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ELECTRON BEAM RECORDERS FOR AUTOMAT
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data files are supplied as an 8 Bit
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signals representative of map featu
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composite photograph prepared to sh
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Figure 5 16 AAIPS Approach Charts R
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Figure 8 - LANDSAT Image Recorded i
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AUTO-CARTO IV STAFF AND COMMITTEES
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University of Kansas Mike Hogben A'
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Efi Arazi, President Sci-Tex Corp.,
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Peter F. Bermel Chief, Eastern Mapp
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Sherry K. Brown Princeton Universit
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Steven D. Clark Petroleum Informati
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Richard Davis NOAA, NOS 6001 Execut
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John Durkin Suiranagraphics 35 Bren
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E. Porrest A-E-C Automation Newslet
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Barry J. Glick Middlebury College M
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Jim Hargis M & S Computing Co. 14 I
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Howard C. Hopps Dept. of Pathology
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Lee P. Johnston GeoGraphic Decision
Page 467 and 468:
Herbert Kressler Defense Mapping Sc
Page 469 and 470:
D. Richard Lycan Center for Pop. Re
Page 471 and 472:
Robert K. McKinney Weyerhaeuser Co.
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Joel L. Morrison Dept. of Geography
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David Osiecki 83 Gerber Rd. South W
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A.D. Poole Phillips Petroleum Co. 2
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Dirck L. Rotty USDA Forest Service
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Craig L. Shafer NFS 18 & C Street,
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Bobby Staudt M & S Computing 406 Au
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Laure Thompson George Mason Univers
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D.J. Walker Image Graphics 107 Ardm
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Alberta Auringer Wood Chairperson,
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AUTHOR INDEX - VOLUME II Allam, M.
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Schmidt, Warren E. ...............
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