کارتوگرافى و اینترنت (قسمت چهارم)

نوع مقاله: مقاله پژوهشی

نویسنده

دانشیار دانشگاه صنعتی مالک اشتر

چکیده

این مقاله به تشریح چگونگى ژنرالیزاسیون نقشه متناسب با نیازهاى متفاوت کاربران با استفاده از یک پایگاه داده‏اى چند مقیاسى مى‏ پردازد. اساس و پایه چنین تولیدى به تجزیه و تحلیل نیازمندی هاى تهیه نقشه بنابرخواست کاربران استوار است و درخواست هاى گوناگون و محدودیت هاى کارتوگرافى مورد نیاز کاربر را نشان مى ‏دهد. مبناى اصلى در این بررسى ترکیب دو رویکرد کارتوگرافیک:
1 - بهره‏ بردارى از پایگاه داده‏اى چند مقیاسى که شامل دو یا چند سطح از جزئیات است و
2 - استفاده از روش هاى ژنرالیزاسیون کارتوگرافى مى‏ باشد.
این مقاله براى موضوعاتى انتخابى (طبقه بندى اطلاعات) طراحى و اجرا گردیده و پیاده سازى گزینه ‏ها را جهت پایگاه داده‏اى چند مقیاسى و ژنرالیزاسیون بخش هایى از چارچوب مورد بحث و ارزیابى قرار مى ‏دهد. اهمیت در ترکیب بهینه این دو روش است، یعنى کارهایى که به وسیله پایگاه داده ‏اى چند مقیاسى حل مى‏ شود و نیز اقداماتى که باید از طریق فرایند ژنرالیزاسیون انجام پذیرد.

کلیدواژه‌ها


عنوان مقاله [English]

Cartography and the Internet: Part IV

نویسنده [English]

  • Mahdi Modiri
Associate Professor of Urban planning, Malek-Ashtar University of Technolog
چکیده [English]

This paper describes map’s generalization according to different needs of users by using a multi-scale database. The base of such production is the analysis of the maps’ requirements according to users’ demands, and indicates various needs and limitations of the cartography demanded by the user. The main basis of this examination is the combination of two cartographic attitudes:
1. Utilization of multi-scale database which includes two or more levels of details; and
2. Using cartography generalization methods.
This paper has been designed and conducted for selective topics (information classification) and discusses and analyzes implementation of choices of multi-scale database and generalization of parts of framework. The importance lies in optimal combination of these two methods, namely matters that are resolved by multi-scale database, as well as actions that must be performed through generalization process.

کلیدواژه‌ها [English]

  • Multiple-Scale Database (MSDB)
  • instantaneous generalization
  • level of phenomena detail
  • map production website
  • user-ordered map
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