![]() This projection commonly used two Standard Parallels (lines of latitudes which are unevenly spaced concentric circles). It has also become particularly popular with aeronautical charts such as the 1:100,000 scale World Aeronautical Charts map series. Today the Lambert Conformal Conic projection has become a standard projection for mapping large areas ( small scale) in the mid-latitudes – such as USA, Europe and Australia. In 1772 he released both his Conformal Conic projection and the Transverse Mercator Projection. His mathematics was considered revolutionary for its time and is still considered important today. Johann Heinrich Lambert was a German ⁄ French mathematician and scientist. This is an example of how a Great Circle does not have to be a set line of Longitude of Latitude.Ĭonic Projection – Lambert Conformal Conic In this the Great Circles are not as obvious as with the two Polar maps above, but the same principle applies: any straight line which runs through the centre point is a Great Circle. ![]() Projection information: Stereographic centred on 145° East and 30° South, with a radius of 30° out from the Pole. #Gprojector move poles software#Produced Using G.PROJECTOR – software developed by NASA and the Goddard Institute for Spatial Studies. Projection information: Stereographic centred on 140° East and 90° South (the South Pole) and 90° North (the North Pole), with a radius of 30° out from each Pole. In these the radiating lines are Great Circles. These are two examples of maps using Stereographic projection over polar areas. Canberra to Sydney or Canberra to Darwin or Canberra to Wellington, New Zealand). Canberra, the capital city of Australia) a map which uses the Stereographic projection and is centred on that place of interest true distances can be calculated to other places of interest (e.g. The advantage of this is that for a place of interest (e.g. One interesting feature of the Stereographic projection is that any straight line which runs through the centre point is a Great Circle. Directions are true from the centre of the map (the touch point of our imaginary ‘piece of paper’), but the map is not equal-area. ![]() This is a conformal projection in that shapes are well preserved over the map, although extreme distortions do occur towards the edge of the map. ![]() The great attraction of the projection is that the Earth appears as if viewed form space or a globe. It is most commonly used over Polar areas, but can be used for small scale maps of continents such as Australia. Today, this is probably one of the most widely used Azimuthal projections. However it is believed that this projection was well known long before that time – probably as far back as the 2nd century BC. The oldest known record of this projection is from Ptolemy in about 150 AD. USA, Europe and Australiaīest Used in areas around the Equator and for marine navigationĪll attributes are distorted to create a ‘more pleasant’ appearanceīest Used for areas with a north-south orientation Comparison of these projections: Projectionīest Used in areas over the Poles or for small scale continental mappingīest Used in mid-latitudes – e.g. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |