Editing Planimetrics

{{Short description|Study of plane measurements}}
'''Planimetrics''' is the study of [[plane (geometry)|plane]] measurements, including [[angle]]s, [[distances]], and [[areas]].

==History==
To measure planimetrics a [[planimeter]] or [[dot planimeter]] is used. This rather advanced analog technology is being taken over by simple [[image measurement]] software tools like, [[ImageJ]], [[Adobe Acrobat]], [[Google Earth Pro]], [[GIMP|Gimp]], [[Photoshop]] and [[KLONK Image Measurement]] which can help do this kind of work from digitalized images.

==In geography==
Planimetric elements in geography are those features that are independent of elevation, such as roads, building footprints, and rivers and lakes. They are represented on two-dimensional maps as they are seen from the air, or in aerial photography.<ref>{{cite web |url=http://coastal.lic.wisc.edu/plan-rpt/plan-rpt.htm#Plan_Chapter_1 |title=Planimetric and Topographic Mapping Report |author-last=Hart |author-first=David A. |date=July 1, 1998 |access-date=June 10, 2009 |archive-date=June 12, 2008 |archive-url=https://web.archive.org/web/20080612073103/http://coastal.lic.wisc.edu/plan-rpt/plan-rpt.htm#Plan_Chapter_1 |url-status=dead }}</ref> These features are often digitized from [[orthorectified]] [[aerial photography]] into data layers that can be used in analysis and cartographic outputs.<ref>{{cite book |author1-last=Montgomery |author1-first=Glenn E. |author2-last=Schuch |author2-first=Harold C. |title=GIS Data Conversion Handbook |publisher=John Wiley & Sons Inc. |year=2007 |isbn=9780471329831 |url=https://books.google.com/books?id=tOX0J3QnhqgC&dq=planimetry+geography&pg=PA97 }}</ref>

A ''planimetric map'' is one that does not include [[Cartographic relief depiction|relief]] data.<ref>{{cite journal |author=Committee on Nomenclature of the American Society of Photogrammetry |title=Definitions of terms used in photogrammetric surveying and mapping: preliminary report |journal=Photogrammetric Engineering |volume=8 |pages=247–283 |year=1942 |quote=Topographic Map. A map that presents the horizontal and vertical positions of the features represented; distinguished from a planimetric map by the addition of relief in measurable form. }}</ref>

==See also==
*[[Horizontal position representation]]
*[[Plane (mathematics)|Two-dimensional space]]

==References==
{{Reflist}}

{{Authority control}}

[[Category:Cartography]]
[[Category:Infographics]]
[[Category:Surveying]]


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