- published: 30 Jan 2008
- views: 135820
Commonly, a map projection is a systematic transformation of the latitudes and longitudes of locations on the surface of a sphere or an ellipsoid into locations on a plane. Map projections are necessary for creating maps. All map projections distort the surface in some fashion. Depending on the purpose of the map, some distortions are acceptable and others are not; therefore, different map projections exist in order to preserve some properties of the sphere-like body at the expense of other properties. There is no limit to the number of possible map projections.
More generally, the surfaces of planetary bodies can be mapped even if they are too irregular to be modeled well with a sphere or ellipsoid; see below. Even more generally, projections are the subject of several pure mathematical fields, including differential geometry and projective geometry. However, "map projection" refers specifically to a cartographic projection.
Maps can be more useful than globes in many situations: they are more compact and easier to store; they readily accommodate an enormous range of scales; they are viewed easily on computer displays; they can facilitate measuring properties of the terrain being mapped; they can show larger portions of the Earth's surface at once; and they are cheaper to produce and transport. These useful traits of maps motivate the development of map projections.
Geography Tutor - Types of Maps and Map Projections
Map projection of Earth .avi
Types of Map Projections
Gall--Peters Projection
Map Projections
Map Projections and People's Perceptions
Map projections of the Earth
How the World Map Looks Wildly Different Than You Think
Mercator projection
Mercator vs Peters projection on West Wing - Cartographers for Social Equality
http://www.tmwmedia.com/geography.html Discover this fascinating series which targets the specific and critical areas of geographic knowledge defined by educators as profoundly lacking in today's students. The Geography Tutor video series is designed to sharpen basic geography skills and teach concepts that students find difficult to understand. Each video is 15-18 minutes. This episode explores various types of maps and map projections: political, physical, relief, climate, vegetation and more.
Description of three different types of map projections: Mercator, Robinson, Winkel Tripel
http://en.wikipedia.org/wiki/Peters_projection From "The West Wing" Season 2 Episode 16
There are many ways to draw the world map. Map-makers may wish to preserve the shape of the land, or the size of the ocean, or put certain countries in the middle. This means people's view of the world will be affected. So, perception of the world can change by seeing different maps. US school children's map: Mercator projection London Map: Jazzberry Blue, Society6 Equal-area map: Gall-Peters The New Internationalist map takes advantage of the fact that 'up' for north is arbitrary. Maps Galore: mapthematics.com
All of us have seen a world map at some point in our lives before, but it is very difficult to imagine how certain countries and parts of the world compare to each other in size that are far apart. In this video, I explore why the world looks very different than how it is portrayed in the Mercator Projection map. I then go on to explore how certain countries are unexpectedly larger or smaller than what they appear to be, and how some places looks wildly different than our perceptions. PS; Don't totally hate on the Mercator Projection, it's actually a really useful map for navigation and on keeping the correct shape of countries while sacrificing the size that we can all laugh about! Music is by Ross Bugden. He makes excellent music, please check out his channel! Link to channel: https:/...
From season 2 - episode 16 "Somebody's Going to Emergency, Somebody's Going to Jail" It's "Big Block of Cheese" Day, which means that Leo sends grumbling staffers to meet with organizations who are not usually heard from at the White House. C.J.'s assignment is the Cartographers for Social Equality
✖ ABOUT [ 6th May 2016 ] Final piece of my Adidas projection mapping. This animation was created using Photoshop CC for the illustrations, Cinema 4D for the luminance lights around the front of the projection and After Effects for the animating and final edit.. ——————————————————————————————— ✖ VIDEO INFORMATION This project for college was a multi-medium concept. Our college/course at the time had been selected to submit and showcase our class' projection mapping. Projection mapping -- in this case -- is projecting a visual onto an object. For us, our object was the adidas logo on a slight angle for a 3D purpose, which we then had to make using multiple of programs. After working out the measurements and such for the projection to properly map without crossing or cutting off, I ha...
2D map projections inherently create distortions in mapping, compromising accuracy. MapLink Pro 10.0 allows you to constantly re-project your maps in real-time, ensuring that the map display provides the highest accuracy possible for enhanced tactical decision making.
Students worked in lab groups to create model of an image on a round surface and then projected them onto a flat surface. The next lab is were students made dough, then used it to create land forms. Finally, the students used their terrain model to create topographic maps. http://www.stwilliamschool.org/
En éste video tutorial explico cómo recrear la posición de la cámara a partir de una fotografía, teniendo en cuenta las líneas rectas representadas en la imagen para entregar los parámetros necesarios para asignarlos al tag llamado Camera calibrator. También explico en detalle los usos indebidos que pueden hacer que la calibración de la cámara puede que no llegue a funcionar. Espero que éste videotutorial les guste y sea de su utilidad para sus propios proyectos. No olviden subcribirse, y visitar mi canal en Facebook: https://www.facebook.com/groups/1771370049814927/
Ms.Savita Sihag, Assistant Professor, Biyani Girls College explained about how to construct a coniocal projection with one standard parallel. http://www.biyanicolleges.org, http://www.gurukpo.com
Dreampoint Production 0996028995/09403345590
This presentation gives an introduction to map projections. It discusses the general properties of map projections, aspects of mapping accuracy, and the different projection types. It reviews some cylindrical projections and their role in coordinate systems commonly used in the US. The presentation was created as part of a peer-reviewed educational series of Reusable Learning Objects (RLOs) on Map Projections. The full suite of presentations can be accessed at http://ecolearnit.ifas.ufl.edu/. For more information on the statewide and online Geomatics program at the University of Florida, please visit us at http://flrec.ifas.ufl.edu/geomatics/ (Fort Lauderdale campus) or http://sfrc.ifas.ufl.edu/geomatics/ (Gainesville campus).
In this Cinema 4D, tutorial we look at how we can take an image and project it out of a camera on to geometry, then we look at how we light the scene to match the image.
Xtra Geography: In this lesson we take a close look at GIS and Map Projections as well as take a look at x-ample questions and x-ercises. ( E00184789 )
Part 1/4 Tutorial on creating Normal Map, and Texture Map using Render To Texture Projection in 3ds Max. For Intermediate users.
http://EPSG.io/ allows searching in a global database of spatial reference systems, datums, ellipsoids and projections to identify transformation parameters required for a software to correctly handle the geographic location in a known coordinate system. This presentation shows various functions of the search system and demonstrates how to use it efficiently to discover and identify the right coordinate system, transform the sample coordinates online, pick a position on a map, convert units, etc. It is possible to export definitions of coordinate systems in various formats, including WKT, OGC GML, XML, Proj.4, SQL or JS and directly use these in all compatible systems such as Proj4JS and OpenLayers or PostGIS. The whole system is open-source with the code on GitHub, in the background it ...
Please consider supporting me by pausing your adblock and refreshing the page to watch this video. 100% of my revenue will go towards paying off my student loans. Thank you. WASSUP GUYS, BAKER HERE! Today I have a really cool tutorial on how to project your 2D image onto a 3D surface so that you can animate a custom camera movement any way you want! You can also add 3D particles, flares, text, or anything other 3D related effect you can think of! Anyways, be sure to LIKE and FAV this tutorial and if you have any questions, feel free to comment or hit me up on facebook or twitter. Check out my "Automatic Smooth Transition Plugin": https://www.youtube.com/watch?v=UVltNQBOsT8 Original 3D Projection Test: https://www.youtube.com/watch?v=CZfI59iTww8 Feel like donating? http://bit.ly/BakerP...
https://drive.google.com/file/d/0B1KDB9YAOPppZDgyMTM4WGpKUlU/view?usp=sharing https://gmaps-samples.googlecode.com/svn/trunk/poly/puzzledrag.html https://youtu.be/x88Z5txBc7w?t=9s Welcome To The Fourth Lab Session of the "CE-413 Introduction to Geographic Information Systems" Prepared by : Kenan BOLAT Part : 4 Before beginning the Fourth lab session please be sure you have watched the first three sessions. You can find the previous lab sessions in the following page 1) http://www.youtube.com/watch?v=_-Ikckj6vXw 2) http://www.youtube.com/watch?v=bHrgysOXT5w 3) http://www.youtube.com/watch?v=LG8AgHHjvpY YouTube Channel : http://www.youtube.com/watch?v=_-Ikckj6vXw&list;=PLoy0XRik2XFWPxWR3Im1QpbAHmSkZyP83 http://goo.gl/forms/UIQQcQaYd3 https://gmaps-samples.googlecod...
Subject : Architecture Paper : GIS (Geographical information system)
A in-depth explanation and illustration of the Universal Transverse Mercator (UTM) grid. This map grid is often used by backpackers and cross-country trekkers. It is the grid of choice for land navigation. Like this video? If so, you'll want to see my online video course in land navigation. It has around four hours of step-by-step instruction to help you find your way over land. We'll start from the very beginning, and go through some pretty sophisticated techniques. To read more about my course, and to link to it, see this page on my web site: http://www.land-navigation.com/land-navigation-course.html