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Month Index: June, 1999
From: Adam Miller <nghtdrud@??????.net> Date: Thu, 03 Jun 1999 22:03:05 -0500 Subject: Re: Various things about Practical Planetology
Kelly Pedersen wrote: [snip] > If anyone knows where I might find a description of an > Eckert Equal Area Projection, or has a better idea of > how to visualize the maps as globes, please let me > know. Ok, I did a search for Eckart Equal Area Projection, and found it at: http://www.utexas.edu/depts/grg/gcraft/notes/mapproj/mapproj.html (it's full of various types of map projection) It's described as: The Eckert IV projection, used for world maps, is a pseudocylindrical and equal-area. The central meridian is straight, the 180th meridians are semi-circles, other meridians are elliptical. Scale is true along the parallel at 40:30 North and South. So basically touch the two hemispheres together and stretch the top & bottom to poles to get a globe. I think the problem you're running into is one hand not knowing what the other is doing; the writers not working closely with the cartagraphers. Not all that uncommon of an error, actually. To solve Radole, imagine a band of mountains & habital area curving around the hemispherical areas of the map; mountains on the dark side (left) and the habitable area on the light side (right). Flax is solved by simply ignoring the one sentence locating the cities; chalk it up to bad reporting on the part of explorers. Hope that helps. Night Druid
Previous Message: Annoucement: New Ships
Next Message: Jammers:Chapter 3, Turns 21 & 22 Summary
Month Index: June, 1999
| Subject | From | Date (UTC) | ||
|---|---|---|---|---|
| Various things about Practical Planetology | Kelly Pedersen | |||
| Re: Various things about Practical Planetology | Adam Miller |