what is geo-referencing.  Technically speaking can polygons be geo-referenced.?
545007
YES!!  FINALLY a GIS related question!!!  Polygons must be geo-refernced to be able to show their rightful posistion in the world.\n\nGeo-referencing is plotting points according to their address or latitude and longitude.
91357
If you meant polygons:\n1. The Pentagon...its a building located in Washington, DC. and was just recently bombed on September 11th.\n2. The stop sign is an example of a polygon. \n3. And um...any sign that has more than three sides for that matter.
563481
They are both methods of locating points on a map.  They are both global.\n\nThe advantage of a grid reference is that, once everyone knows what map you are on, you can locate a point with reasonable accuracy by using 6 figures.  To use lat/long to achieve that level of accuracy would take many more figures.\n\nIn other word, lat/long is global.  Grid is generally limited to one map sheet.
8793
I coded up a map the other day that lets me click on it and get the location of the click (I just needed to get a few coordinates).\nThere is a lot of discussion about geocoding with PHP in the discussion group. Just do a search.
887368
are you talking about cad then\nTo understand go to the link\n\nhttp://www.ncsu.edu/project/graphicscourse/gc/acadtut/acadtut2000/polcoord3.html\n\nhttp://www.caddprimer.com/cadd_primer_chapters/cad_geometrical_drawing_books_2.htm
410020
Xcuse me dude, plz be clear abt wt u wanna ask abt the PRINCILES OF GEOMETeRY
775153
What are "trivias?"  Do you mean make up some trivia questions about Geometry?\n\nTrivia by definition involves arcane knowledge and would not apply to Geometry.
884573
All the time.  Everything in computer modelling comes down to geometry.  Its all about the polygons (which are really just lots and lots of triangles)
23644
Depends strongly on the purpose you need the system for.\n\nThere are a couple of all-purpose systems like ArcView by ESRI, GeoMedia by Intergraph or Mapinfo.\n\nFor specialized problems there are specialized solutions and niche-solutions which usually are less cost-intensive for a given problem.\n\nThere are a couple of freeware and open source GIS, some of which are surprisingly powerful. Documentation and user-guidance may be a problem, though.\n\nMy personal favourite freeware GIS for basic handling of shape files and PostGIS databases is GDV Spatial Commander, which has the only disadvantage that the developers' webpage isn't available in English (the software is).
345277
"Geography" just means knowing where other places / countries are located, and knowing something about those countries (including your own country.) \n\n"Geo" is the Greek word for "Earth" and "Graphos" is the Greek word for "picture" (graphic) or "writing". So, Geography is information about the Earth.\n\nWhat's it used for...? Suppose you want to learn about William Shakespeare. He wrote tons of plays around 1700, and they were SO excellent that we still read them today.\n\nWhere was Shakespeare from? \nHow do you get there? Is it far?\nWhat kind of money do they use? \nIs it expensive to get there?\nIf you are injured when there, do they have modern hospitals?\nDo you need to get any shots (needles) before you go there?\nWhat language do they speak?\n\nIf you know geography, you can visit other countries and do stuff. If you DON'T know any geography, you should stay home!
88605
I like using Google Earth to get Lat/Long info. Just take it to where you want to go, and the coordinates are in the lower left corner. Free download, and hours of nerdy entertainment.
240497
Here is some information about tiling regular polygons (tiling is also called tessellation):\nhttp://mathforum.org/sum95/suzanne/whattess.html
353289
This is a method like grid squares on a map so you can specify a point relative to a known origin by x distance right and y distance up. \nIf three planes are used you can also specify a point in 3D space so that if you lay your sheet of paper flat with x and y marked, the z distance is above the paper, like height of a mountain above a flat map.\nLeft and down are given negative values.\nAs well as defining single points, you could specify shapes according to how the distance in the y direction relates to the x distance.\nSo x = y (often more confusingly written as x-y = 0 ) defines a line connecting points (x,y) such as (1,1) (2,2) (5,5) (1000,1000) at 45 degrees between the x and y axes.\nAlso, more advanced, X cubed + y cubed + z cubed = 27 is a sphere, centred on O with a radius of 3
983696
There's hardly a limit to the application of GIS in UK local government.  Just about every service delivered by councils' in this country either uses or could use GIS - it's such a useful tool for recording and manipulating any sort of information which has a geographical component.  This includes planning, access to the countryside, fire, policing, roads & transport, social services, tourism, waste management, education, wildlife protection etc etc etc - the list is very long
128959
uuuuuhhhhhh, no. a polygon is a MULTI-SIDED figure. hence the POLY prefix, meaning many.
922625
Well I'm not a geometer ... so I may err slightly here as i only had one non-euclidean geometry class and going over some links has only refreshed some of it.\n\nRiemannian geometry is otherwise known as elliptic geometry :\n"It can be visualized as the surface of a sphere on which "lines" are taken as great circles. In elliptic geometry, the sum of angles of a triangle is > 180 degrees"  [this last part taken from mathworld]. It is a "non-euclidean" geometry "with positive curvature" which replaces the "parallel postulate" with *through any point in the plane, there exist no lines parallel to a given line.*\n\ntaken from wikipedia :\nSpherical trigonometry is a part of spherical geometry that deals with polygons (especially triangles) on the sphere and explains how to find relations between the involved angles. This is of great importance for calculations in astronomy and earth-surface and orbital and space navigation.\n\nSo one could say ... paraphrase the above defn of spherical trigonometry mentioning how it is a study of the relations of polygons, angles etc on objects under (or in) a riemannian geometry system\n\nincluded below are some of the links so you can formulate a better answer than mine :) gain a better understanding and even give examples that you find in those links and related links :)\n\nenjoy :),\nTom
978615
a polygon with 5 sides is a pentagon.\n\nthis has two right angles so it would look like the picture of a basic drawing of a house.   see the pic of the house attached.\n\nhttp://www.thestationerystudio.com/index.cfm/fuseaction/catalog.viewProduct/productId/5214