R.MAPCALC: An Algebra for GIS and Image Processing

reportActive / Technical Report | Accession Number: ADA283923 | Open PDF

Abstract:

As geographic information systems are enhanced with more robust query capabilities, they evolve from basic spatial data storage, retrieval, and display systems to more powerful spatial modeling systems. Languages that empower a user to design and create spatial models will advance this development even further. This study describes a map algebra language that can form the foundation for overlay and neighborhood analyses in both raster geographic information systems and image-processing systems. The language combines maps and images in expressions with arithmetic and logical operators and mathematical functions to produce new maps and images. This algebra has been implemented in the Geographical Resources analysis Support System r.mapcalc module. The language syntax is first described and then examples relevant to geographic information systems and image-processing applications are presented.

Author(s):
Shapiro, Michael ; Westervelt, James
Author Organization(s):
CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL
Descriptive Note:
Final rept.,
Pagination:
0027

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
USACERL-TR-EC-94/13
Task Number(s):
NN
Project Number(s):
4A162720A896
Monitor Series:
ACSIM
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_4.7.2_Installation Services; JCA_4.7_Base and Installations Support; JCA_5.3.3_Develop Strategy; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action; JCA_6_Net Centric; JCA_4.6_Engineering; JCA_6.2.1_Information Sharing; JCA_6.2.2_Computing Services; JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_1.2.1_Training; JCA_6.2_Enterprise Services; JCA_6.4.1_Secure Information Exchange; JCA_6.1_Information Transport
Modernization Areas:
Microelectronics; Space
Communities of Interest:
Space
Descriptor(s):
*IMAGE PROCESSING, *PROGRAMMING LANGUAGES, *GEOGRAPHY, DATA BASES, DISPLAY SYSTEMS, RESOURCES, ARITHMETIC, FIELDS(COMPUTER PROGRAMS), OVERLAYS, RASTERS, FLOATING POINT OPERATION, SYNTAX, MAPS, IMAGES, DATA PROCESSING, INFORMATION SYSTEMS
Field(s)/Group(s):
Information Science, Geography, Computer Programming and Software
Keyword(s):
GIS(GEOGRAPHIC INFORMATION SYSTEMS), GRASS(GEOGRAPHIC RESOURCES ANALYSIS SUPPORT SYSTEM), PE62720A
Report Date:
1994 Apr 01