[OSGeoJapan-discuss] =?gb2312?B?UmU6IFtPU0dlb0phcGFuLWRpc2N1c3NdIFFHSVOkzqXXpe2luKWnpa+lyNf5?= =?gb2312?B?mMvPtaTO1E+2qKTLpMSkpKTG?=

[yosinaka teruhiko]

English version£¨I apologize for my basic level of English.£©

Dear Even-san,
Thank you for your reply.
I understand that the reason there is no warning when the coordinate transformation fails in QGIS is because it is intentionally designed this way. Indeed, if there is no transformation method available, it would be confusing for the user if they were simply told it's an error.
I believe that if something doesn't seem to be working, users can resolve the issue by consulting with others in their community. I also think that the QGIS forum and this mailing list, where we can discuss and receive advice from experienced users and experts, are wonderful resources.
Thank you for your continued support.


ÈÕ±¾ÕZ°æ

Even san
 ご卦佚ありがとうございます。
QGIS¤Ç×ù˜Ë¤Î‰ä“Q¤¬¤¦¤Þ¤¯¤¤¤Ã¤Æ¤Ê¤¤ˆöºÏ¤Ë¾¯¸æ¤ò³ö¤µ¤Ê¤¤¤Î¤Ï¡¢¤¢¤¨¤Æ¤½¤Î¤è¤¦¤Ë¤·¤Æ¤¤¤ë¤È¤¤¤¦¤³¤È¤Ê¤ó¤Ç¤¹¤Í¡£
´_¤«¤Ë¡¢‰ä“Q·½·¨¤¬¤Ê¤¤ˆöºÏ¤Ë¡¢¥¨¥é©`¤Ç¤¹¤ÈÑÔ¤ï¤ì¤Æ¤â¥æ©`¥¶©`‚ȤϤɤ¦¤¹¤ì¤Ð¤¤¤¤¤«À§¤Ã¤Æ¤·¤Þ¤¤¤Þ¤¹¡£
¤¦¤Þ¤¯¤¤¤Ã¤Æ¤Ê¤¤¤Ê¤È˼¤Ã¤¿ˆöºÏ¤Ë¤Ï¡¢Éí½ü¤Ê¥æ©`¥¶©`ég¤Ç¤ÎÏàÕ„¤Ç½â›Q¤È¤Ê¤ë¤Î¤«¤Ê¤È˼¤¤¤Þ¤¹¡£
¤Þ¤¿QGIS¤Î¥Õ¥©©`¥é¥à¤Ç¥Ç¥£¥¹¥«¥Ã¥·¥ç¥ó¤·¤Æ½UòYÕߤäÓÐ×RÕߤ«¤éÖúÑÔ¤ò¤¤¤¿¤À¤±¤ë¤³¤Î¥á©`¥ê¥ó¥°¥ê¥¹¥È¤âËØÇç¤é¤·¤¤¤È˼¤Ã¤Æ¤Þ¤¹¡£½ñáá¤È¤â¤è¤í¤·¤¯¤ªîŠ¤¤¤·¤Þ¤¹¡£


¼ªÖÐÝxÑå
teruhiko ＠ keroro.keroro.com
(Gmail¤ÎˆöºÏ¤ÏËÍÊÜÐÅ¥¨¥é©`¤¬°kÉú¤¹¤ë¤¿¤á¡¢teruhikoyoshi ＠ outlook.jp ¤Þ¤Ç¤ªîŠ¤¤¤·¤Þ¤¹¡££©


________________________________
餓竃繁: Even Rouault <even.rouault ＠ spatialys.com>
ËÍÐÅÈÕ•r: 2025Äê1ÔÂ10ÈÕ 11:45
乱枠: osgeojapan-discuss ＠ lists.osgeo.org <osgeojapan-discuss ＠ lists.osgeo.org>
CC: yosinaka teruhiko <teruhiko ＠ keroro.keroro.com>
¼þÃû: Re: [OSGeoJapan-discuss] QGIS¤Î¥×¥í¥¸¥§¥¯¥È×ù˜Ëϵ¤ÎÔO¶¨¤Ë¤Ä¤¤¤Æ


耳嶄さん、

(Ó¢ÕZ¤«¤é Google Translate ¤Ç·­ÔU¡£Ó¢ÕZ¤Î¥ª¥ê¥¸¥Ê¥ë¥á¥Ã¥»©`¥¸¤Ïáá¤Û¤É)

QGIS ¤Ï¡¢×ù˜Ë‰ä“Q¤òŒgÐФ¹¤ë¤¿¤á¤Ë PROJ ¥½¥Õ¥È¥¦¥§¥¢ ¥é¥¤¥Ö¥é¥ê (https://proj.org) ¤ËÒÀ´æ¤·¤Æ¤¤¤Þ¤¹ (˽¤Ï PROJ é_°kÕߤΠ1 ÈˤǤ¹)¡£PROJ ¥½¥Õ¥È¥¦¥§¥¢ ¥é¥¤¥Ö¥é¥ê¤Ï¡¢×ù˜Ë²ÎÕÕ¥·¥¹¥Æ¥à¤È×ù˜Ë²Ù×÷¤Ë EPSG ¥Ç©`¥¿¥Ù©`¥¹ (https://epsg.org) ¤òʹÓä·¡¢œyµØ»ùœÊµãég¤Î‰ä“Q¤ò²ÎÕÕ¤·¤Þ¤¹¡£JGD2000 ¤«¤é JGD2011 ¤Ø¤ÎÌض¨¤Î¥±©`¥¹¤Ç¤Ï¡¢EPSG ¥Ç©`¥¿¥Ù©`¥¹¤Ë¤Ï¡¢touhokutaiheiyouoki2011.gsb ¤È¤¤¤¦¥°¥ê¥Ã¥É ¥Õ¥¡¥¤¥ë¤ò²ÎÕÕ¤¹¤ë¥ì¥³©`¥É (https://epsg.org/transformation_6713/JGD2000-to-JGD2011-1.html) ¤¬¤¢¤ê¤Þ¤¹¡£²ÐÄî¤Ê¤¬¤é¡¢¤³¤Î¥°¥ê¥Ã¥É ¥Õ¥¡¥¤¥ë¤Ï¡¢PROJ ¤¬Ê¹ÓäǤ­¤ë¤ÈÕJ×R¤·¤Æ¤¤¤ë¥°¥ê¥Ã¥É ¥Õ¥¡¥¤¥ë¤Î¥³¥ì¥¯¥·¥ç¥ó¤Ç¤¢¤ë PROJ ¥Ç©`¥¿ ¥ê¥Ý¥¸¥È¥ê (https://github.com/OSGeo/PROJ-data/) ¤Ë¤Þ¤Àº¬¤Þ¤ì¤Æ¤¤¤Þ¤»¤ó¡£ EPSG ¥Ç©`¥¿¥»¥Ã¥È¤Ï¡¢¥°¥ê¥Ã¥É¥Õ¥¡¥¤¥ë¤ÎÃûÇ°¤Î¤ß¤òʾ¤·¤Æ¤ª¤ê¡¢¥À¥¦¥ó¥í©`¥ÉÔª¤Ïʾ¤·¤Æ¤¤¤Þ¤»¤ó¡£¤Þ¤¿¡¢¥À¥¦¥ó¥í©`¥ÉÔª¤¬¤ï¤«¤Ã¤Æ¤¤¤Æ¤â¡¢¥Õ¥¡¥¤¥ë¤Î¥é¥¤¥»¥ó¥¹¤¬ßmÇФǤʤ¤¿ÉÄÜÐÔ¤¬¤¢¤ê¤Þ¤¹¡£¤½¤Î¤¿¤á¡¢¤½¤Î¥°¥ê¥Ã¥É¤¬¤Ê¤¤¤È¡¢PROJ¡¢¤Ò¤¤¤Æ¤Ï QGIS ¤Ï¡¢¤½¤ÎˆöºÏ×ù˜Ë²Ù×÷¤òŒgÐФǤ­¤Þ¤»¤ó¡£PROJ ¥Ç©`¥¿ ¥Ç©`¥¿¥Ù©`¥¹¤Ç¥°¥ê¥Ã¥É¤¬²ÎÕÕ¤µ¤ì¤Æ¤¤¤Ê¤¤ˆöºÏ¡¢¾¯¸æ¤Ï°kÐФµ¤ì¤Þ¤»¤ó¡£¤³¤ì¤Ï¡¢¥°¥ê¥Ã¥É ¥Õ¥¡¥¤¥ë¤òÒŠ¤Ä¤±¤ëŒgÓõĤʷ½·¨¤¬¤Ê¤¤ˆöºÏ (¥¢¥¯¥»¥¹ÖÆÏÞ¡¢ÓÐÁÏ¥³¥ó¥Æ¥ó¥Ä¤Ê¤É) ¤¬¤¢¤ë¤¿¤á¡¢¥À¥¦¥ó¥í©`¥É¤Ç¤­¤Ê¤¤¥Õ¥¡¥¤¥ë¤Ëév¤¹¤ë¾¯¸æ¤ò°k¤¹¤ë¤È¡¢¥æ©`¥¶©`¤òÀ§¤é¤»¤ë¤À¤±¤À¤«¤é¤Ç¤¹¡£

チケット https://github.com/OSGeo/PROJ-data/issues/36 および https://github.com/OSGeo/PROJ-data/pull/37 ¤Ç¤Ï¡¢ß^È¥¤ËÈÕ±¾¤ÎœyµØ¥°¥ê¥Ã¥É¤Ëév¤¹¤ë×hÕ“¤¬¤¢¤ê¤Þ¤·¤¿¤¬¡¢¤½¤ì¤é¤òº¬¤á¤ëÉϤǤÎΨһ¤ÎÕϺ¦¤Ï¡¢¬FÔڤΥ饤¥»¥ó¥¹Ìõ¼þ¤Ç¤¢¤ê¡¢¤³¤ì¤ÏÃ÷¤é¤«¤Ë¥ª©`¥×¥ó ¥Ç©`¥¿ ¥é¥¤¥»¥ó¥¹¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó¡£
とはいえ、https://github.com/tohka/JapanGridShift リポジトリの https://github.com/tohka/JapanGridShift/raw/refs/heads/master/gsb_files/touhokutaiheiyouoki2011.gsb ¤Ë¥°¥ê¥Ã¥É ¥Õ¥¡¥¤¥ë¤¬¤¢¤ê¤Þ¤¹¡£¤³¤ì¤ò¥À¥¦¥ó¥í©`¥É¤·¤Æ QGIS ¥¤¥ó¥¹¥È©`¥ë¤Î¡¸proj¡¹¥µ¥Ö¥Ç¥£¥ì¥¯¥È¥ê¤Ë¥¤¥ó¥¹¥È©`¥ë¤¹¤ë¤È¡¢jp_gsi_gsigeo2011.tif (2011 ¥¸¥ª¥¤¥É ¥Õ¥¡¥¤¥ë¤Î¥é¥¤¥»¥ó¥¹¤òÈ¡µÃ¤¹¤ë¤¿¤á¤Î 1 »ØÏÞ¤ê¤Î³É¹¦¤·¤¿È¡¤ê½M¤ß¤Î½Y¹û) ¤Ê¤É¤ÎËû¤Î¥°¥ê¥Ã¥É ¥Õ¥¡¥¤¥ë¤âÒŠ¤Ä¤«¤ê¤Þ¤¹¡£¤½¤¦¤¹¤ì¤Ð¡¢JGD2000 ¤«¤é JGD2011 ¤Ø¤Î‰ä“Q¤Ï†–î}¤Ê¤¯™CÄܤ¹¤ë¤Ï¤º¤Ç¤¹¡£
ÈÕ±¾¤Î¥³¥ß¥å¥Ë¥Æ¥£¤¬¹úÍÁµØÀíÔº (GSI) ¤È…fÁ¦¤·¤Æ¤³¤ì¤é¤Î¥é¥¤¥»¥ó¥¹†–î}¤ò½â›Q¤Ç¤­¤ì¤ÐËØÇç¤é¤·¤¤¤È˼¤¤¤Þ¤¹¡£ÀíÏëµÄ¤Ë¤Ï¡¢¤³¤ì¤é¤Î¥°¥ê¥Ã¥É¤Ï¡¢ºÎ¤é¤«¤ÎÉêÕˆ¤ò±ØÒª¤È¤¹¤ë¡¸»¥“Q¥é¥¤¥»¥ó¥¹¡¹¤Ç¤Ï¤Ê¤¯¡¢¥¯¥ê¥¨¥¤¥Æ¥£¥Ö ¥³¥â¥ó¥º ¥¢¥È¥ê¥Ó¥å©`¥·¥ç¥ó 4.0 (CC-BY-4.0) ¤ÎÌõ¼þ¤Ë»ù¤Å¤¤¤Æ¥é¥¤¥»¥ó¥¹¤µ¤ì¤ë¤³¤È¤òÍû¤ß¤Þ¤¹¡£

¥Õ¥é¥ó¥¹¤è¤ê¡¢¤è¤í¤·¤¯¤ªîŠ¤¤¤¤¤¿¤·¤Þ¤¹¡£

Even



English version:


Yosinaka-san,

QGIS relies on the PROJ software library (https://proj.org) to perform coordinate transformation (I'm one of the PROJ developers). The PROJ software library uses the EPSG database (https://epsg.org) for coordinate reference system and coordinate operation, which reference transformations between geodetic datums. For the particular case of JGD2000 to JGD2011, the EPSG database has a record (https://epsg.org/transformation_6713/JGD2000-to-JGD2011-1.html) which references a grid file called touhokutaiheiyouoki2011.gsb . Unfortunately this grid file is not yet included into the PROJ-data repository (https://github.com/OSGeo/PROJ-data/), which is the collection of grid files PROJ knows it can use. The EPSG dataset just gives the names of the grid files, not where to download them from. And even when the location where to download them from is known, the file might not be appropriately licensed. So without that grid, PROJ, and thus QGIS, cannot perform the coordinate operation in that case. They don't issue a warning when a grid is not referenced in the PROJ-data database, because, in some cases there is no practical way to find the grid file (restricted access, paywalls, etc.), so emitting warnings about files that cannot be downloaded would just annoy users.
In ticket https://github.com/OSGeo/PROJ-data/issues/36 and https://github.com/OSGeo/PROJ-data/pull/37, we had a discussion in past years about that topic of Japanese geodetic grids, and the only obstacle for their inclusion is their current licensing terms, which are not clearly an open data license.
That said, in the https://github.com/tohka/JapanGridShift repository, you can find the grid file at https://github.com/tohka/JapanGridShift/raw/refs/heads/master/gsb_files/touhokutaiheiyouoki2011.gsb . If you download it and install it in your QGIS installation in the "proj" sub-directory, where you can find other grid files such as jp_gsi_gsigeo2011.tif (which was the result of a one-time successful effort to get a license for the 2011 geoid file), then the JGD2000 to JGD2011 transformation should work fine.
It would be great if the Japanese community managed to resolve with Geospatial Information Authority of Japan (GSI) those licensing issues. Ideally we would want those grids to be licensed under the Creative Commons Attribution 4.0 (CC-BY-4.0) terms, and not a "compatible license" with it which requires to fill some application.

Best regards from France,

Even



Le 10/01/2025 ¨¤ 03:01, yosinaka teruhiko (OSGeoJapan-discuss ½UÓÉ) a ¨¦crit :
½Ô˜”
FOSS4G TOKAI¤Ç»î„Ó¤µ¤»¤Æ¤¤¤¿¤À¤¤¤Æ¤ª¤ê¤Þ¤¹¼ªÖФǤ¹¡£
±¾Äê¤â¤è¤í¤·¤¯¤ªîŠ¤¤¤·¤Þ¤¹¡£

QGIS¤Î¥×¥í¥¸¥§¥¯¥È×ù˜Ëϵ¤ÎÔO¶¨¤Ë¤Ä¤¤¤Æ¤Ç¤¹¡£
¾ÉÈÕ±¾×ù˜Ëϵ¥Õ¥¡¥¤¥ë¤ÈJGD2011¤Î×ù˜Ëϵ¤Î¥Õ¥¡¥¤¥ë¤¬»ìÔÚ¤·¤Æ¤¤¤ë¥×¥í¥¸¥§¥¯¥È¤¬¤¢¤ëˆöºÏ¤Ç¤¹¡£
ÏȤۤÉÖª¤êºÏ¤¤¤¬¡¢QGIS¤Î¥×¥í¥¸¥§¥¯¥È×ù˜Ë¤òJGD2011¤ËÔO¶¨¤·¤Æ¤¤¤ë¤Î¤Ë¡¢¾ÉÈÕ±¾×ù˜Ëϵ¥Õ¥¡¥¤¥ë¤ÈJGD2011×ù˜Ëϵ¥Õ¥¡¥¤¥ë¤¬Í¬¤¸ˆöËù¤Ë±íʾ¤µ¤ì¤ë¤Î¤Ï¤Ê¤ó¤Ç¤«¤È¤¤¤¦Ù|†–¤¬Ë½¤Î¤È¤³¤í¤ËÀ´¤Þ¤·¤¿¡£
¡¡¡¸¾ÉÈÕ±¾×ù˜Ëϵ¡úJGD2011¤Ø¤ÏÖ±½Ó‰ä“Q¤Ç¤­¤Ê¤¤¡¹¤È¤¤¤¦¤Î¤¬Ë½¤ÎÕJ×R¤Ç¤¢¤ê¡¢¥×¥í¥¸¥§¥¯¥È¤òJGD2000¤Ç±íʾ¤µ¤»¤ì¤Ð¤ª¤½¤é¤¯½â›Q¤¹¤ë¤È¤¤¤¦¤³¤È¤ÇŒgÊ©¤·¤Æ¤â¤é¤Ã¤¿¤È¤³¤í¡¢¤Á¤ã¤ó¤ÈÒâ‡í¤·¤¿ˆöËù¤Ë±íʾ¤µ¤ì¤ë¤è¤¦¤Ë¤Ê¤ê¤Þ¤·¤¿¡£
¡¡½Ô˜”¡¢¾ÉÈÕ±¾×ù˜Ëϵ¤ÈJGD2011×ù˜Ëϵ¤¬»ìÔÚ¤¹¤ë¥Ç©`¥¿¤ò²Ù¤ë¤È¤­¤Ë¤É¤Î¤è¤¦¤Ë¤µ¤ì¤Æ¤Þ¤¹¤«£¿
¢Ù¾ÉÈÕ±¾×ù˜Ëϵ¤òJGD2000ÐÎʽ¤Ë‰ä“Q¤¹¤ë
¢ÚQGIS¤Î¥×¥í¥¸¥§¥¯¥È×ù˜Ë¤òJGD2000¤Ç×÷˜I¤¹¤ë¡£
¢Û¤½¤ÎËû
このあたり、屎盾はないとは房いますが、徭蛍はこうやると宴旋だと房うというのがあれば、ぜひ縮えてもらいたいと房います。

弖阜
QGIS¤ÇÉÏÓ›¤Î¤è¤¦¤Ë¥×¥í¥¸¥§¥¯¥È×ù˜Ëϵ¤Ç¡¢×ù˜Ë‰ä“Q¤¬¤¦¤Þ¤¯¤¤¤«¤Ê¤¤ˆöºÏ¡¢Œê¤·¤Æ¤¤¤Ê¤¤ˆöºÏ¤Ë¡¸‰ä“Q¤¬¤Ç¤­¤Æ¤Ê¤¤¿ÉÄÜÐÔ¤¬¤¢¤ê¤Þ¤¹¡¹¤Ê¤É¤Î¾¯¸æ¤¬³ö¤ë¤è¤¦¤ËÔO¶¨¤¹¤ë¤³¤È¤Ï¤Ç¤­¤ë¤Î¤Ç¤·¤ç¤¦¤«£¿

£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß£ß
¼ªÖÐÝxÑå
teruhiko ＠ keroro.keroro.com<mailto:teruhiko ＠ keroro.keroro.com>
(Gmail¤ÎˆöºÏ¤ÏËÍÊÜÐÅ¥¨¥é©`¤¬°kÉú¤¹¤ë¤¿¤á¡¢teruhikoyoshi ＠ outlook.jp<mailto:teruhikoyoshi ＠ outlook.jp> ¤Þ¤Ç¤ªîŠ¤¤¤·¤Þ¤¹¡££©




_______________________________________________
OSGeoJapan-discuss mailing list
OSGeoJapan-discuss ＠ lists.osgeo.org<mailto:OSGeoJapan-discuss ＠ lists.osgeo.org>
https://lists.osgeo.org/mailman/listinfo/osgeojapan-discuss


--
http://www.spatialys.com
My software is free, but my time generally not.
Butcher of all kinds of standards, open or closed formats. At the end, this is just about bytes.
-------------- next part --------------
HTML$B$NE:IU%U%!%$%k$rJ]4I$7$^$7$?(B...
URL: <http://lists.osgeo.org/pipermail/osgeojapan-discuss/attachments/20250110/fc7056d6/attachment-0001.htm>