Craster’s discarded projections

General discussion of map projections.
mapnerd2022
Posts: 165
Joined: Tue Dec 28, 2021 9:33 pm

Re: Experimental projections

Post by mapnerd2022 »

And yes, that's exactly his paper.
Atarimaster
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Joined: Fri Nov 07, 2014 2:43 am

Re: Experimental projections

Post by Atarimaster »

PeteD wrote: Wed May 17, 2023 3:37 amDoes the paper give Craster's reason for rejecting his elliptical projection?
I (perhaps mis-) understood the “but formulas were far more complicated” as being the reason.
After all, if you’ve got two very similar projections, but one of them has serious drawbacks, why keep it?
mapnerd2022
Posts: 165
Joined: Tue Dec 28, 2021 9:33 pm

Re: Experimental projections

Post by mapnerd2022 »

Atarimaster wrote: Wed May 17, 2023 8:44 am
PeteD wrote: Wed May 17, 2023 3:37 amDoes the paper give Craster's reason for rejecting his elliptical projection?
I (perhaps mis-) understood the “but formulas were far more complicated” as being the reason.
After all, if you’ve got two very similar projections, but one of them has serious drawbacks, why keep it?
My thoughts exactly. Also, at that time there were no computers, so it was more important for projection formulae to be as simple as possible.
mapnerd2022
Posts: 165
Joined: Tue Dec 28, 2021 9:33 pm

Re: Experimental projections

Post by mapnerd2022 »

Only now can we generate that Hyperbolic really easily and quickly.
PeteD
Posts: 251
Joined: Mon Mar 08, 2021 9:59 am

Re: Experimental projections

Post by PeteD »

Atarimaster wrote: Wed May 17, 2023 8:44 am I (perhaps mis-) understood the “but formulas were far more complicated” as being the reason.
Yes, that's also what I understood, but this passage is referring only to Craster's hyperbolic projection (Putnins P6), and I wanted to know whether Snyder also gave a reason for Craster rejecting his elliptical projection (Putnins P2), which is much less similar to the sinusoidal.
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