仁川国际机场
图例
8月31日 注册·工作坊日
9月1日 正式会期·口头报告·和平纪念公园
9月2日 太田川三角洲·晚宴
9月3日 主办城市·闭幕研讨·闭幕式
9月3日 MapLibre 社区聚会
现场视频 24条
会期内拍摄的现场视频，包括主会场、和平纪念公园与原子弹爆炸圆顶屋、市区夏日祭、晚宴、广岛城以及闭幕式。每条视频也一并放在对应的记录点上。点击缩略图即可播放。
开源地理空间软件领域规模最大的年度会议FOSS4G，2026年在日本广岛举行。本文是作为学术分会场口头报告人参会的笔者，从8月31日工作坊日注册到9月3日闭幕式与社区聚会为止，四天里在会场与主办城市所作的记录。文章沿着注册、开幕、分会场、报告、招待会、晚宴、闭幕研讨与闭幕式的会议进程展开，同时整理了穿插其间的主办城市广岛的空间结构。会议日程与主办城市无法分割，这是本届大会最突出的特征。
会期内拍摄的现场视频，包括主会场、和平纪念公园与原子弹爆炸圆顶屋、市区夏日祭、晚宴、广岛城以及闭幕式。每条视频也一并放在对应的记录点上。点击缩略图即可播放。
闭幕式之后，9月3日晚在紧邻原子弹爆炸圆顶屋的折鹤塔12层观景层举行的社区聚会所发表的内容。这是一场与大会注册无关的免费活动，由Re:Earth赞助，以英语进行。
沿组织、产品、格式、3D与社区五条线索梳理过去一年的主旨报告。开头用「License is everything」与「The little tweet that could…」两页幻灯片回顾了2020年Mapbox GL JS把许可证由开源改为专有之后，社区如何走向分叉。一条许可证条款足以改变整个生态的方向，而回应始自一条推文——这正是该项目的起点。
把将MapLibre Native绑定到Rust图形界面工具包Slint的maplibre-native-slint工作经验，重新表述为开源治理的问题。由谁、按何种程序接受一项贡献，以及此后由谁维护，远比写代码更难。这场报告紧接主旨发言，从贡献者一侧印证了基金会结构与技术指导委员会为何存在。
让城市建筑随音乐的频率成分实时起伏的演示。它把地图当作视听媒介而非信息传达媒介，展示了矢量瓦片的数据驱动样式能被推进到何种程度。
介绍建立在开放数据之上的免费公共服务。要点在于无需密钥、无需账号，可直接接入MapLibre样式。
来源 — 现场拍摄的照片（19:04～20:09）与报告资料「2026-09 MapLibre @ FOSS4G JP Meetup」（Yuri Astrakhan, CC BY 2.0, 49页幻灯片）。数字与表述均依幻灯片所载。
会场与主办城市所摄幻灯片、碑文与指示牌上的文字。收录闭幕式的统计幻灯片、MapLibre聚会的报告画面，以及和平纪念公园「韩国人原子弹爆炸牺牲者慰灵碑」韩文、日文、英文三面碑文的全文。
按韩文原文收录。刻于同一处的英文碑文见下。
제2차 세계대전이 끝날 무렵 히로시마에는 약 10만명의 한국인이 군인 군속 징용공 동원학도 일반시민으로서 살고 있었다. 1945년 8월 6일의 원폭투하로 인해 2만여명의 한국인이 순식간에 소중한 목숨을 빼앗겼다. 히로시마시민 20만 희생자수의 1할에 달하는 한국인 희생자수는 묵과할수 없는 숫자이다.
폭사한 이 희생자는 공양도 제대로 받지 못하고 그 영혼은 오랫동안 구중을 헤메이고 있던차 1970년 4월 10일 재일본대한민국거류민단 히로시마현본부에 의해 비참한 죽음을 강요당한 영혼들을 편히 잠들게 하고 원폭의 참사를 두번다시 되풀이 않기를 희구하면서 평화의 땅 히로시마의 일각에 이 비를 건립했다.
고향산천을 그리면서 이국땅에서 폭사한 혼령들을 위로함은 말할것도 없고 아직까지도 이해해 받지 못하고있는 한국인 피폭자의 현상에 대한 관심을 불러 일으켜 하루라도 빨리 양심있는 지원이 실현되기를 바라마지 않는다. 한국인 희생자위령제는 매년 8월 5일 이 장소에서 거행되고 있다.
재일한국청년상공인연합회 및 유지일동
按日文原文收录。
第二次世界大戦の終り頃 広島には約十万人の韓国人が 軍人、軍属、徴用工、動員学徒、一般市民として在住していた。1945年8月6日原爆投下により、2万余名の韓国人が一瞬にしてその尊い人命を奪われた。広島市民20万犠牲者の1割に及ぶ韓国人死没者は決して黙過できる数字ではない。
爆死した これら犠牲者は誰からも供養を受けることなく、その魂は永くさまよい続けていたが、1970年4月10日 在日本大韓民国居留民団広島県本部によって悲惨を強いられた同胞の霊を安らげ 原爆の惨事を二度と くり返えさないことを希求しつつ平和の地、広島の一隅に この碑が建立された。
望郷の念にかられつつ異国の地で爆死した霊を慰さめることはもとより 今もなお理解されていない韓国人被爆者の現状に対しての関心を喚起し一日も早い良識ある支援が実現されることを念じる。
韓国人犠牲者慰霊祭は毎年8月5日この場所で挙行されている。
在日本韓国青年商工人連合会及び有志一同
At the end of World War II, there were about 100,000 Koreans living in Hiroshima as soldiers, civilian employees of the army, mobilized students and ordinary citizens. When the atomic bomb was dropped on August 6th, 1945, the sacred lives of more than 20,000 Koreans were suddenly taken from our midst. Of the 200,000 Hiroshima citizens lost to the bomb, approximately 10% were Koreans. This tragic figure cannot be quietly left unnoticed.
The Korean victims were given no funerals or memorial services and their spirits hovered for years unable to pass on to heaven. Then, on April 10, 1970, this monument was erected in this corner of Hiroshima, the City of Peace, by the Hiroshima Prefectural Branch of the Organization of Korean Residents in Japan. This monument was erected in the hope that the souls of our compatriots, brought to misery through force, will be able to rest in peace.
It is also an expression of our demand that the A-bomb tragedy will never be repeated.
We pray, of course, for the solace of those lost souls longing for their homeland, but killed on foreign soil. However, we also pray that the plight of the Korean survivors, poorly understood even today, will emerge into public awareness and that reasonable assistance for these survivors will be provided immediately.
A memorial service for the Korean victims of the bomb is held here every year on August 5th.
The Junior Federation of Commerce and Industry of Korean Residents in Japan and Concerned Volunteers
社会的なルールです — 広島市は、地域の皆さんとの協働によってきれいで快適なまちづくりを進めます。
This area is designated by the “Hiroshima Litter Prevention Ordinance” as both a “Town Beautification Area” and a “No-Smoking Area.” (The sign shown at upper right is displayed on the street.) Penalties apply for performing any of the following activities in this area. In public outdoor areas: 1. Smoking in areas away from designated ashtrays. 2. Littering (disposing of cigarette butts, empty cans, etc. by throwing them on the street.) 3. Failure to pick up after your dog. In any outdoor area: 4. Graffiti. The penalty for violating 1-3 is a fine of 1,000 yen. The penalty for violating 4 is a fine of up to 50,000 yen.
(Lower panel) 美化推進区域および喫煙制限区域図 Town Beautification and No-Smoking Area — legend: Public Toilet · Trash Can · Smoking Area · Current Location · Town Beautification and No-Smoking Area / Contact: 広島市環境局業務部業務第一課 TEL (082) 504-2098
平和の泉 — 昭和35年9月 · 広島青年会議所 創立10周年記念施設
（注）1960年9月由广岛青年会议所为创立十周年而建。喷泉向园内送水，以纪念原子弹爆炸后寻水而亡的人们。
7F Registration — Please take the elevator to the 7th floor. / FOSS4G HIROSHIMA 2026
FOSS4G 2026 · Hiroshima · Academic Track — An Open Geospatial Framework for Proximity-Based Community Planning: Integrating Mobility Based Community Detection, Multimodal Accessibility and Facility Allocation Optimisation
1 September 2026 · Junyoung CHOI¹ · Sunyong EOM² · Jiho YEO³ · Yuri LEE¹ (¹The Seoul Institute, ²Hanyang University, ³Gachon University)
Panel Discussion — “What the Field Needs — Technology, Capacity, and People in the Age of Digital Public Goods”
Panel: Yuko Yokoi (UNDP) · Chisa Mikami (UNITAR) · Jumpei Takami (UNOOSA) · Rei Kasai (UNHCR)
Question 1. If developers around the world could start working for your organization tomorrow — what would you ask them to do first?
Question 2. Tell us about a moment when training or support really took root — when it kept working after the project ended. What was different?
828 people came to Hiroshima. (841 people registered.)
65 countries and regions. (746 people told us where they are from. More than half of them came from outside Japan.)
348 presentations — General session talks 237 · Lightning talks 41 · Posters 37 · Sponsor talks 26 · Interactive demonstrations 7, and 7 community events.
450 people joined Gala Dinner.
93 · 72 · 52
93 submissions received. 72 accepted. 52 full papers in the final proceedings.
Published Open Access, supported by the ISPRS Inter-Commission Working Group IV / III / II, “Openness in Geospatial Science and Remote Sensing.”
Online now. Free. For anyone. Permanently.
Edited by Toshikazu Seto, Nobusuke Iwasaki and Mitsunori Ueda.
Proceedings — isprs-archives.copernicus.org
FOSS4G 2027 — 23 – 27 August 2027, Bristol, UK
OSGeo:UK · University of Bristol
https://2027.foss4g.org · #foss4g:osgeo.org [matrix] · info.2027@foss4g.org
Yokohama to Osaka, 2005 — One phone call. Three years later, OSGeo existed.
MapLibre in Hiroshima! — Yuri Astrakhan (@nyurik) · CC BY 2.0 · Map Data OpenStreetMap, Style OpenMapTiles
The .ORG — Exists to support the software projects. MapLibre Board, fully re-elected yearly. Makes financial decisions, final arbiter technical decisions. MapLibre Team · MapLibre Voting Members · Charter.
“Writing Code Is Easy. Governing It Is Hard. — What I learned from MapLibre and maplibre-native-slint” · Yui Matsumura / yuiseki, Geolonia, Inc.
“OPENSTREETMAP SOUND DEMO” · Taro Matsuzawa (@smellman)
HOW THE BUILDING HEIGHTS ARE ANIMATED — Frequency data using fftSize = 32 → 16 bins on the AnalyserNode. Buildings are split into 16 tiers by render_height, each added as a separate fill-extrusion layer. Each frame reads dataArray[i] and updates the fill-extrusion-height of layer 3d-buildings-i. The average amplitude drives changes in the HSL hue and intensity of setLight. Looped continuously via requestAnimationFrame.
ANOTHER TOPIC — I'm running a proxy on my own server to resolve CORS issues in order to play music from Archive.org. (Python: FastAPI + httpx) VJ mode: You can use any source via Loopback.app (macOS) or PipeWire (Linux).
Open services on open data — OSM · Overture · Mapterhorn · Protomaps · Natural Earth · NASA Black Marble · ESA WorldCover · EGM2008 · libmypaint / ezu / hokusai — MIT · Apache-2.0 — free · no key
In your MapLibre, today — terrain.reearth.land (Global terrain, rendered on request) · buildings.reearth.land (2.5D footprints from Overture, rendered on request) · papers.reearth.land (Basemaps — painted, and plain)
特別展会場 Special exhibition — 誕生70周年記念 ミッフィー展 第1会場 Room 1 (11 July – 8 September 2026)
ひろしま美術館 HIROSHIMA MUSEUM OF ART — コレクション展Ⅱ・フランス近代絵画 / Collection Gallery: French Paintings
広島城二の丸復元建物 — The Restored Buildings at Ninomaru of Hiroshima Castle
ミュージアムショップはこちら — The Museum Shop is Here
主办城市如何规定一场会议 — 这四天给出了答案。
学术分会场以投稿93篇、录用72篇、正式论文52篇收尾，全部通过ISPRS Archives开放获取并长期公开。报告不止于讲台，而要以可被引用的形式留存下来——这一原则贯穿整个运营。一个开源社区的活动仍维持带有学术评审的独立分会场，正是这一点把该领域的成果送入政策与研究文献。
闭幕研讨由UNDP、UNITAR、UNOOSA、UNHCR的一线工作者组成。开源地理空间工具已是人道与发展现场实际使用的工具，而这些机构关心的并非功能，而是人的能力与资金的可持续性——这一点被反复提及。技术社区与国际机构在同一个会场交换需求，这种形式本身就是本届大会的资产。
主会场广岛国际会议场坐落在和平纪念公园的轴线上，与和平纪念资料馆建成一体。参会者在分会场之间步行往返于慰灵碑与原子弹爆炸圆顶屋之间。把纪念与慰灵的空间同国际会议设施置于同一地块，成为把主办城市的讯息送达每一位与会者的装置。
机场没有铁路接驳、依赖机场巴士，但在市区，日本规模最大的有轨电车网把会场、住宿与商业街收在两三站之内。面向短期停留访客的票制产品——如广电8小时乘车券——与之并行。不设专用接驳车、仅靠既有公共交通就能安排与会者的一天，这是主办城市适任与否的实际条件。
在由旧市民棒球场原址改造而成的市区公园里，国际会议的欢迎招待会与市民的盂兰盆舞在同一个傍晚并行举行。把大型闲置用地还原为广场与商业用途，其结果正体现为能够同时容纳两者的密度。
广岛城址与中央公园在原子弹爆炸中尽毁，却未被再开发消耗，而是作为公园与文化设施的骨架保留下来。城址、护国神社、缩景园、县立美术馆与广岛美术馆同处步行范围之内，使市区北侧形成一处文化设施集聚地。1958年的钢筋混凝土天守与1989至1994年二之丸的木构复原并存于同一地块，本身就是复原理念变迁的记录。
闭幕式结束的当晚，在紧邻原子弹爆炸圆顶屋的折鹤塔12层举办了免费的MapLibre聚会——离开会议厅，以夜景为背景听取报告。与此同时，学术分会场的52篇论文继续通过ISPRS Archives开放获取。付费注册之内的日程与其之外的社区活动在同一座城市里连续展开，这正是FOSS4G运营方式的特点。