Create proj_degree_input/output for C-API #2027
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kbevers
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Equivalent to proj_angular_input() and proj_angular_output() but checking for degree units instead. proj_create_crs_to_crs() rarely, if ever, returns pipelines that has radians as input or output so using proj_angular_*() is not a useful check for io units of pipelines. These two new functions should make life a bit easier for users that generally store there angular coordinates in radians. Closes OSGeo#2027
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kbevers
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Apr 11, 2020
Equivalent to proj_angular_input() and proj_angular_output() but checking for degree units instead. proj_create_crs_to_crs() rarely, if ever, returns pipelines that has radians as input or output so using proj_angular_*() is not a useful check for io units of pipelines. These two new functions should make life a bit easier for users that generally store there angular coordinates in radians. Closes OSGeo#2027
kbevers
added a commit
to kbevers/PROJ
that referenced
this issue
Apr 11, 2020
Equivalent to proj_angular_input() and proj_angular_output() but checking for degree units instead. proj_create_crs_to_crs() rarely, if ever, returns pipelines that has radians as input or output so using proj_angular_*() is not a useful check for io units of pipelines. These two new functions should make life a bit easier for users that generally store there angular coordinates in radians. Closes OSGeo#2027
kbevers
added a commit
to kbevers/PROJ
that referenced
this issue
Apr 12, 2020
Equivalent to proj_angular_input() and proj_angular_output() but checking for degree units instead. proj_create_crs_to_crs() rarely, if ever, returns pipelines that has radians as input or output so using proj_angular_*() is not a useful check for io units of pipelines. These two new functions should make life a bit easier for users that generally store there angular coordinates in radians. Closes OSGeo#2027
kbevers
added a commit
to kbevers/PROJ
that referenced
this issue
Apr 12, 2020
Equivalent to proj_angular_input() and proj_angular_output() but checking for degree units instead. proj_create_crs_to_crs() rarely, if ever, returns pipelines that has radians as input or output so using proj_angular_*() is not a useful check for io units of pipelines. These two new functions should make life a bit easier for users that generally store there angular coordinates in radians. Closes OSGeo#2027
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Thanks @kbevers! |
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Currently there are:
Which is useful to know when the input needs to be converted from degrees to radians before performing a transform. However, some users of
pyprojprefer to work in radians instead of degrees. So, to support them for thecs2cslike behavior, I check the input/output CRS to see if they are geographic. Combining that withproj_angular_input/outputI am able to determine if the radians need to be converted to degrees or not. However, when attempting to support thecctlike behavior with pipelines, the solution is not as obvious. So, my thought is that adding functions that check if the input needs to be in degrees would resolve this need.Thoughts?
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