On Monday, inwards Working amongst Map Projections, nosotros explored how dissimilar map projections distort our moving-picture present of the world. The Mercator projection is undoubtedly the most mutual mpa projection used inwards modern online interactive maps. It is hence worth taking a closer expect at the item distortions of Gerardus Mercator's pop map projection.
The Mercator Problem is an informative introduction into how the Mercator Projection distorts the map of the world. The problems amongst the Mercator Projection are good known. The projection distorts the scale of areas along the lines of longitude. Therefore areas closed to the poles seem far bigger than areas closed to the equator. Which is why Greenland on maps oft seems to hold upwardly close the same size equally Africa (it isn't).
The Mercator Problem includes a great demonstration of the means that the Mercator Projection distorts the size of countries depending on how closed they are to either pole. An interactive comparing tool allows yous to sentiment how 2 countries seem on a map using the Mercator projection in addition to how they should seem if the province expanse of the 2 countries were to a greater extent than accurately portrayed.
Darren Wien has also created a great demonstration of how the Mercator Projection used inwards Google Maps distorts objects closed to the poles. His Draggable Tissot Indicatrix uses draggable polygons to demonstrate how areas are distorted equally yous movement nearer or farther from the poles on Google Maps.
His Google Map includes a break of circles (all amongst a 500km radius) placed all across the map. You tin reach the sack encounter how the Mercator Projection distorts the circles inwards the screenshot above. In the app itself all the circle polygons are interactive. So, amongst this Tissot Indicatrix, yous tin reach the sack genuinely movement the circles closed to the map in addition to notice how they grow in addition to shrink along lines of longitude.
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