- 期刊
On Conformal Geospatial Transformations with Complex Polynomials
Konformsetest georuumilistest teisendustest komplekssete polünoomidega
摘要
On vaadeldud geoinfosüsteemide andmete teisendamist komplekssete polünoomidega võrdluses samade andmete teisendamisega kommertstarkvara pakettidega. On näidatud, et regulaarsetel juhtudel võib keeruliste pakettidega tehtavad teisendused edukalt asendada madala astme (4. või 5. astme) polünoomidega tehtavate teisendustega. Vähem regulaarsetel juhtudel aga hakkavad muudest allikatest tulevad ebamäärasused sageli varjutama puhtalt arvutustest tulenevaid erinevusi. Artiklis esitatud tulemuste võimalik rakendusala on kiirete teisendusfiltrite konstrueerimine geoinfosüsteemide tarbeks.
關鍵字
無資料並列摘要
We consider conformal reprojections of geographic information system data with complex polynomials as compared to reprojections with commercial software packages. We show that in regular cases low-degree complex polynomials can be effectively used instead of sophisticated software packages. In less regular cases the ambiguities arising from other sources make the application of standard transforms problematic.
延伸閱讀
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