[QGIS-Developer] QGIS and Proj 6

[Richard Duivenvoorde]

On 03/06/2019 09.28, Nyall Dawson wrote:
> Hi all,
> 
> Following the merge of https://github.com/qgis/QGIS/pull/30040 , I now
> consider QGIS' port to the Proj 6 API complete. Here's a bit of a
> summary of what's been done here (on builds based on proj 6.1 and
> later only, more on that later[1])

Ubercool Nyall! Thanks!

I've build QGIS with GDAL3 and proj6.1 here.

Both with an my (old) profile or with a crisp fresh one, I get a lot of
debug output with 'failed' in it... See below

Wondering if my build is wrong or it is just 'normal' output
(QGIS_DEBUG=5...)

But: thanks for all this. Though, let's be honest, I only understand
half of it :-)   Nobody with such knowledge willing to write a thorough
"QGIS with proj magic" intro in our docs?

Regards,
Richard Duivenvoorde

src/core/qgscoordinatereferencesystem.cpp:1057 : (createFromProj4)
[27ms] Projection is not found in databases.
src/core/qgscoordinatereferencesystem.cpp:1119 : (getRecord) [16ms]
failed :  select * from tbl_srs where parameters='+proj=longlat
+a=529800 +no_defs' order by deprecated
src/core/qgscoordinatereferencesystem.cpp:1161 : (getRecord) [1ms]
failed :  select * from tbl_srs where parameters='+proj=longlat
+a=529800 +no_defs' order by deprecated
src/core/qgscoordinatereferencesystem.cpp:1119 : (getRecord) [56ms]
failed :  SELECT * FROM tbl_srs WHERE ' '||parameters||' ' LIKE '%
+proj=longlat %' AND ' '||parameters||' ' LIKE '% +a=529800 %' AND '
'||parameters||' ' LIKE '% +no_defs %' order by deprecated
src/core/qgscoordinatereferencesystem.cpp:1161 : (getRecord) [1ms]
failed :  SELECT * FROM tbl_srs WHERE ' '||parameters||' ' LIKE '%
+proj=longlat %' AND ' '||parameters||' ' LIKE '% +a=529800 %' AND '
'||parameters||' ' LIKE '% +no_defs %' order by deprecated
src/core/qgscoordinatereferencesystem.cpp:1057 : (createFromProj4)
[12ms] Projection is not found in databases.
src/core/qgscoordinatereferencesystem.cpp:1119 : (getRecord) [11ms]
failed :  select * from tbl_srs where parameters='+proj=longlat
+a=2575000 +no_defs' order by deprecated
src/core/qgscoordinatereferencesystem.cpp:1161 : (getRecord) [2ms]
failed :  select * from tbl_srs where parameters='+proj=longlat
+a=2575000 +no_defs' order by deprecated
src/core/qgscoordinatereferencesystem.cpp:1057 : (createFromProj4)
[35ms] Projection is not found in databases.
src/core/qgscoordinatereferencesystem.cpp:1119 : (getRecord) [11ms]
failed :  select * from tbl_srs where parameters='+proj=longlat
+a=25559000 +rf=43.616040955631398 +no_defs' order by deprecated
src/core/qgscoordinatereferencesystem.cpp:1161 : (getRecord) [1ms]
failed :  select * from tbl_srs where parameters='+proj=longlat
+a=25559000 +rf=43.616040955631398 +no_defs' order by deprecated
src/core/qgscoordinatereferencesystem.cpp:1119 : (getRecord) [32ms]
failed :  SELECT * FROM tbl_srs WHERE ' '||parameters||' ' LIKE '%
+proj=longlat %' AND ' '||parameters||' ' LIKE '% +a=25559000 %' AND '
'||parameters||' ' LIKE '% +rf=43.616040955631398 %' AND '
'||parameters||' ' LIKE '% +no_defs %' order by deprecated
src/core/qgscoordinatereferencesystem.cpp:1161 : (getRecord) [1ms]
failed :  SELECT * FROM tbl_srs WHERE ' '||parameters||' ' LIKE '%
+proj=longlat %' AND ' '||parameters||' ' LIKE '% +a=25559000 %' AND '
'||parameters||' ' LIKE '% +rf=43.616040955631398 %' AND '
'||parameters||' ' LIKE '% +no_defs %' order by deprecated
src/core/qgscoordinatereferencesystem.cpp:1057 : (createFromProj4)
[17ms] Projection is not found in databases.
src/core/qgscoordinatereferencesystem.cpp:1119 : (getRecord) [25ms]
failed :  select * from tbl_srs where parameters='+proj=longlat
+a=578900 +no_defs' order by deprecated
src/core/qgscoordinatereferencesystem.cpp:1161 : (getRecord) [7ms]
failed :  select * from tbl_srs where parameters='+proj=longlat
+a=578900 +no_defs' order by deprecated
src/core/qgscoordinatereferencesystem.cpp:1119 : (getRecord) [41ms]
failed :  SELECT * FROM tbl_srs WHERE ' '||parameters||' ' LIKE '%
+proj=longlat %' AND ' '||parameters||' ' LIKE '% +a=578900 %' AND '
'||parameters||' ' LIKE '% +no_defs %' order by deprecated
src/core/qgscoordinatereferencesystem.cpp:1161 : (getRecord) [2ms]
failed :  SELECT * FROM tbl_srs WHERE ' '||parameters||' ' LIKE '%
+proj=longlat %' AND ' '||parameters||' ' LIKE '% +a=578900 %' AND '
'||parameters||' ' LIKE '% +no_defs %' order by deprecated
src/core/qgscoordinatereferencesystem.cpp:1057 : (createFromProj4)
[10ms] Projection is not found in databases.
src/core/qgscoordinatereferencesystem.cpp:1119 : (getRecord) [10ms]
failed :  select * from tbl_srs where parameters='+proj=longlat +a=33000
+no_defs' order by deprecated