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Development of Theory and Algorithm to Define Geometrical Elements of Three-dimensional Geologic Structure in a Form Suitable for Application in GIS and CAD Environments

Research Project

Project/Area Number 14540430
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Geology
Research InstitutionOsaka City University

Principal Investigator

SHIONO Kiyoji  Osaka City University, Graduate School of Science, Professor, 大学院・理学研究科, 教授 (40047387)

Co-Investigator(Kenkyū-buntansha) MASUMOTO Shinji  Osaka City University, Graduate School of Science, Ass. Professor, 大学院・理学研究科, 助教授 (40173760)
RAGHAVAN Venkatesh  Osaka City University, Graduate School for Creative Cities, Ass. Professor, 大学院・創造都市研究科, 助教授 (30291602)
Project Period (FY) 2002 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2004: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2003: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2002: ¥1,800,000 (Direct Cost: ¥1,800,000)
KeywordsGeologic Structure / Topology / Geologic Boundary / Boundary Surface / Geologic Function / Neighborhood / GIS / CAD / 境界線 / 論理モデル / 地質モデル / 堆積 / 侵食 / 3次元
Research Abstract

The spatial distribution of every geologic unit within a 3-D space under consideration is expressed as a subspaces bordered by surfaces that divides the space into two subspaces. This relation between geologic units and boundary surfaces has been called a logical model of geologic structure. Given the logical model and DEMs of surfaces, we can define the geologic function that assigns to every point a unique geologic unit that contains the point. The purpose of the present study is to develop the theory and algorithm to extract information on geometrical elements such as boundary lines and surfaces from 3疋 model of geologic structure specified by the logical model and the DEMs. The results are summarized as follows :
1. The distribution of geologic units defines a partition of a 3D space. Introducing the topological concept, we found that a boundary of geologic units can be formulated as an intersection of their closures.
2. It was proved that the above idea is useful to visualize geologic boundaries in a raster image through masking procedures in the GIS environment.
3. We defined a function that assigns to every point a pair of geologic unit just below the point and one just above the point. The function is useful to judge whether a point lies within a geologic unit or on the boundary. We included an algorithm to draw a line of geologic boundary in a software for visualization of 3-D geologic model.
4. We further defined a function that assigns to every point a set of geologic units neighboring around the point. As an application of the function, we developed an algorithm to find boundary lines appearing on a specified surface and to output them as a data file suitable for GIS and CAD system.

Report

(4 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (30 results)

All 2005 2004 Other

All Journal Article (18 results) Publications (12 results)

  • [Journal Article] Extraction of geologic boundary : Proposal of neighbourhood function2005

    • Author(s)
      NEMOTO Tatsuya
    • Journal Title

      International Journal of Geoinformatics 1

      Pages: 41-51

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 3-D geologic modeling and visualization of geologic boundaries : Theory based on the generalized geologic function2005

    • Author(s)
      YONEZAWA Go
    • Journal Title

      International Journal of Geoinformatics 1

      Pages: 171-178

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Extraction of geologic boundary Proposal of neighborhood function2005

    • Author(s)
      NEMOTO, T.
    • Journal Title

      International Journal of Geoinformatics 1・1

      Pages: 41-51

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 3-D geologic modeling and visualization of geologic boundaries Theory based on the generalized geologic function2005

    • Author(s)
      YONEZAWA, G.
    • Journal Title

      International Journal of Geoinformatics 1・1

      Pages: 171-178

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Extraction of Geologic Boundary : Proposal of Neighbourhood Function2005

    • Author(s)
      Nemoto Tatsuya
    • Journal Title

      International Journal of Geoinformatics 1・1(in press)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Multi-Language Support and Localization of GRASS GIS2005

    • Author(s)
      Shinji Masumoto
    • Journal Title

      International Journal of Geoinformatics 1・1(in press)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 3-D Geologic Modeling and Visualization of Geologic Boundaries : Theory based on the Generalized Geologic Function2005

    • Author(s)
      Yonezawa Go
    • Journal Title

      International Journal of Geoinformatics 1・1(in press)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 拡張地質関数を用いた地質境界線の表示2004

    • Author(s)
      米澤 剛
    • Journal Title

      情報地質 15

      Pages: 193-206

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Characterization of a point on surface by geologic units neighbouring around it2004

    • Author(s)
      NEMOTO Tatsuya
    • Journal Title

      Proc. GIS-IDEAS2004

      Pages: 231-236

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Construction and visualization of three dimensional geologic model using GRASS GIS2004

    • Author(s)
      MASUMOTO Shinji
    • Journal Title

      Transaction in GIS 8

      Pages: 211-223

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 地質構造の論理モデルに基づく地質境界面の数学表現-閉包概念の導入-2004

    • Author(s)
      塩野 清治
    • Journal Title

      情報地質 15

      Pages: 65-73

    • NAID

      110001367013

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Visualization of geologic boundaries based on generalized geologic function2004

    • Author(s)
      YONEZAWA, G.
    • Journal Title

      Geoinformatics 15・4

      Pages: 193-206

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Characterization of a point on surface by geologic units neighboring around it2004

    • Author(s)
      NEMOTO, T.
    • Journal Title

      Proc.GIS-IDEAS2004

      Pages: 231-236

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Construction and visualization of three dimensional geologic model using GRASS GIS2004

    • Author(s)
      MASUMOTO, S.
    • Journal Title

      Transaction in GIS 8・2

      Pages: 211-223

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Mathematical expression of geologic boundary based on logical model of geologic structure : Closure of subset in metric space2004

    • Author(s)
      SHIONO, K.
    • Journal Title

      Geoinformatics 15・2

      Pages: 65-73

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 拡張地質関数を用いた地質境界線の表示2004

    • Author(s)
      米澤 剛
    • Journal Title

      情報地質 15・4

      Pages: 193-206

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Characterization of a Point on Surface by Geologic Units Neighbouring around it2004

    • Author(s)
      Nemoto Tatsuya
    • Journal Title

      Proc. of the GIS-IDEAS2004

      Pages: 231-236

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 地質構造の論理モデルに基づく地質境界面の数学表現-閉包概念の導入-2004

    • Author(s)
      塩野 清治
    • Journal Title

      情報地質 15・2

      Pages: 65-73

    • NAID

      110001367013

    • Related Report
      2004 Annual Research Report
  • [Publications] Masumoto Shinji: "Construction and Visualization of a Three Dimensional Geologic Model Using GRASS GIS"Transactions in GIS. 8・2. 211-223 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] 根本 達也: "Web上での3次元地質モデリングの現状と可能性について-SISGeMを例にして-"日本情報地質学会シンポジウム2003 講演論文集. 21-24 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] 塩野 清治: "地質構造の論理モデルの基づく地質境界面の抽出アルゴリズム(1)-閉包概念の導入による数学表現-"情報地質. 14・2. 190-191 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 升本 眞二: "地質構造の論理モデルに基づく地質境界面の抽出アルゴリズム(2)-GRASS GISによる具体化-"情報地質. 14・2. 168-169 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 根本 達也: "地質構造の論理モデルに基づく地質境界面の抽出アルゴリズム(3)-3角メッシュ分割による具体化-"情報地質. 14・2. 174-175 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Nemoto Tatsuya: "Development of an Online Spatial Information System for Geologic Modeling -SISGem"Geoinformatics. 14・1. 63-68 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Shiono Kiyoji: "Mathematical Basis for Classification of Sedimentary Layers under the Law of Superposition"Terra Nostra. 4・4. 301-304 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 塩野 清治: "電子地質図の品質と情報地質学"日本情報地質学会シンポジウム2002「電子地質図の標準規格と品質管理」講演論文集. 61-66 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Masumoto Shinji: "Construction and Visualization of Three Dimensional Geologic Model Using GRASS GIS"Proceedings of the Open Source Free Software GIS-GRASS users conference 2002. 1-8 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 升本 眞二: "GRASS GIS入門(その4)"情報地質. 13・4. 213-222 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Raghavan Venkatesh: "Implementing Spatial Data Infrastructures using Open Source Software Tools"Terra Nostra. 4・4. 151-155 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Raghavan Venkatesh: "Implementing a Web-GIS for Collection and Dissemination of Spatial Information using Open Source Software"Proceedings International Symposium on Geoinformatics for Spatial-Infrastructure Development in Earth and Allied Sciences. 207-212 (2002)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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