projects:voyc:map_projections
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| projects:voyc:map_projections [2024/08/17 23:24] – [Web Mercator Projection] jhagstrand | projects:voyc:map_projections [2024/08/19 08:46] (current) – jhagstrand | ||
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| ======Map Projections====== | ======Map Projections====== | ||
| - | see [[Gallery of Map Projections]] | + | see [[Gallery of Map Projections]]\\ |
| + | see [[Thematic Maps]]\\ | ||
| Projecting a 3D sphere onto a 2D map results in distortions. | Projecting a 3D sphere onto a 2D map results in distortions. | ||
| Line 84: | Line 85: | ||
| This is the Web Mercator variation used by Google Maps and most other online street mapping programs because of the speed of calculation. | This is the Web Mercator variation used by Google Maps and most other online street mapping programs because of the speed of calculation. | ||
| + | |||
| + | =====Voyc Petri Projection===== | ||
| + | |||
| + | ==Purpose== | ||
| + | Demonstrate the expansion of life forms from Africa outwards to the rest of the world.\\ | ||
| + | see [[Thematic Maps#Out of Africa|Out of Africa]]\\ | ||
| + | |||
| + | ==Requirements== | ||
| + | * circular shape, 86 mm diameter, to fit in a petri dish | ||
| + | * origin in Lake Victoria | ||
| + | * maintain relationship between eastern Russia and Alaska | ||
| + | * equal-area | ||
| + | |||
| + | |||
| =====References===== | =====References===== | ||
projects/voyc/map_projections.1723951458.txt.gz · Last modified: 2024/08/17 23:24 by jhagstrand