spat_to_SH_ml() doesn't work

[Former user]

Hello,

I tried to add the function into the test code. However, when I debug the codes, "((pf2ml)shtns->ftable[SHT_M][SHT_TYP_SAN])(shtns, im, Vr, Qlm, ltr);" cannot find the implementation codes.

Is the function realized or not? Thank you very much!

Best, Yue

[Nathanaël Schaeffer]

Issue #14 was marked as a duplicate of this issue.

[Nathanaël Schaeffer]

spat_to_SH_ml() works well on my system. Could you explain more what you are trying to do ?

[Former user]

Thank you very much for your prompt reply, Nathanael.

I am trying to find Legendre transform implementation for my application. are you using the version of shtns-2.6-r507.tar.gz or the latest one? I have test the functions of spat_to_SH() and spat_to_SH_l(). In "ftable[][]", they can find specific implementation codes. However, for spat_to_SH_ml(), in "ftable[][]", the address is "0x00". Do I need to specify some parameters when compiling the codes?

In addition, for spat_to_SH_ml(), you didn't provide more details about the variables. Is "Vr" an array? How about "Qlm"?

Thank you very much.

[Nathanaël Schaeffer]

I really don't understand what you are doing. What is your platform ? compiler ? Please also post a code snippet.

Have you initialized the library with shtns_init() ?

The arguments to spat_to_SH_ml() are the same as the one of spat_to_SH(), with the additional im (order) and ltr (maximum degree of truncation). Please look at the example to see how to use spat_to_SH(), and do something similar for spat_to_SH_ml()

It does not seem to be a bug, so please contact me using private message for help (click on my name on top of this comment).

[Nathanaël Schaeffer]

So it appears that spat_to_SH_ml() only works with on-the-fly transforms. The problem will be fixed soon.

[Nathanaël Schaeffer]

fixed in v2.6.1

[Former user]

Thank you very much, Nathanael.