{"action":"created","issue":{"url":"https://api.github.com/repos/godai-kaihatsu/gondwana/issues/25","repository_url":"https://api.github.com/repos/godai-kaihatsu/gondwana","labels_url":"https://api.github.com/repos/godai-kaihatsu/gondwana/issues/25/labels{/name}","comments_url":"https://api.github.com/repos/godai-kaihatsu/gondwana/issues/25/comments","events_url":"https://api.github.com/repos/godai-kaihatsu/gondwana/issues/25/events","html_url":"https://github.com/godai-kaihatsu/gondwana/issues/25","id":282275633,"number":25,"title":"GeoObject に Billboard 機能が欲しい","user":{"login":"usagi","id":115972,"avatar_url":"https://avatars1.githubusercontent.com/u/115972?v=4","gravatar_id":"","url":"https://api.github.com/users/usagi","html_url":"https://github.com/usagi","followers_url":"https://api.github.com/users/usagi/followers","following_url":"https://api.github.com/users/usagi/following{/other_user}","gists_url":"https://api.github.com/users/usagi/gists{/gist_id}","starred_url":"https://api.github.com/users/usagi/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/usagi/subscriptions","organizations_url":"https://api.github.com/users/usagi/orgs","repos_url":"https://api.github.com/users/usagi/repos","events_url":"https://api.github.com/users/usagi/events{/privacy}","received_events_url":"https://api.github.com/users/usagi/received_events","type":"User","site_admin":false},"labels":[{"id":752027419,"url":"https://api.github.com/repos/godai-kaihatsu/gondwana/labels/GeoObject%20%E5%9C%B0%E7%89%A9","name":"GeoObject 地物","color":"176c82","default":false},{"id":779388773,"url":"https://api.github.com/repos/godai-kaihatsu/gondwana/labels/in%204.0.0.9","name":"in 4.0.0.9","color":"f7f5a5","default":false},{"id":717630910,"url":"https://api.github.com/repos/godai-kaihatsu/gondwana/labels/needs%20%E8%A6%81%E6%9C%9B","name":"needs 要望","color":"1f0560","default":false}],"state":"open","locked":false,"assignee":{"login":"usagi","id":115972,"avatar_url":"https://avatars1.githubusercontent.com/u/115972?v=4","gravatar_id":"","url":"https://api.github.com/users/usagi","html_url":"https://github.com/usagi","followers_url":"https://api.github.com/users/usagi/followers","following_url":"https://api.github.com/users/usagi/following{/other_user}","gists_url":"https://api.github.com/users/usagi/gists{/gist_id}","starred_url":"https://api.github.com/users/usagi/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/usagi/subscriptions","organizations_url":"https://api.github.com/users/usagi/orgs","repos_url":"https://api.github.com/users/usagi/repos","events_url":"https://api.github.com/users/usagi/events{/privacy}","received_events_url":"https://api.github.com/users/usagi/received_events","type":"User","site_admin":false},"assignees":[{"login":"usagi","id":115972,"avatar_url":"https://avatars1.githubusercontent.com/u/115972?v=4","gravatar_id":"","url":"https://api.github.com/users/usagi","html_url":"https://github.com/usagi","followers_url":"https://api.github.com/users/usagi/followers","following_url":"https://api.github.com/users/usagi/following{/other_user}","gists_url":"https://api.github.com/users/usagi/gists{/gist_id}","starred_url":"https://api.github.com/users/usagi/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/usagi/subscriptions","organizations_url":"https://api.github.com/users/usagi/orgs","repos_url":"https://api.github.com/users/usagi/repos","events_url":"https://api.github.com/users/usagi/events{/privacy}","received_events_url":"https://api.github.com/users/usagi/received_events","type":"User","site_admin":false}],"milestone":null,"comments":0,"created_at":"2017-12-14T23:44:13Z","updated_at":"2017-12-18T01:12:52Z","closed_at":null,"author_association":"CONTRIBUTOR","body":"GeoObject は低レベルAPIをサポートし任意のポリゴンを表現できるが、ユーザーにとっては「点」の情報を表示するために、\r\n\r\n1. XY-YZ-ZXの3平面にテクスチャーを持ち、どの方位からもおよそ適当に表示される擬似的なビルボード様のポリゴンを作る\r\n2. 正四面体やUV球を作る\r\n3. 1枚の面を作りcamera情報に基いてビルボード化するためにRotationを操作する\r\n\r\nなどの何れもユーザーレベルでは比較的高コストな手間を要する。\r\n\r\nGeoObject に新たに Billboard: bool プロパティーを追加し、 API でこれを設定可能とする事でビルボードを用いたいユーザーのコストを低減したい。\r\n\r\nまた、この対応により、 #23 のようなフォーマットで点を可視化するコストも合理化できる。\r\n"},"comment":{"url":"https://api.github.com/repos/godai-kaihatsu/gondwana/issues/comments/352302540","html_url":"https://github.com/godai-kaihatsu/gondwana/issues/25#issuecomment-352302540","issue_url":"https://api.github.com/repos/godai-kaihatsu/gondwana/issues/25","id":352302540,"user":{"login":"usagi","id":115972,"avatar_url":"https://avatars1.githubusercontent.com/u/115972?v=4","gravatar_id":"","url":"https://api.github.com/users/usagi","html_url":"https://github.com/usagi","followers_url":"https://api.github.com/users/usagi/followers","following_url":"https://api.github.com/users/usagi/following{/other_user}","gists_url":"https://api.github.com/users/usagi/gists{/gist_id}","starred_url":"https://api.github.com/users/usagi/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/usagi/subscriptions","organizations_url":"https://api.github.com/users/usagi/orgs","repos_url":"https://api.github.com/users/usagi/repos","events_url":"https://api.github.com/users/usagi/events{/privacy}","received_events_url":"https://api.github.com/users/usagi/received_events","type":"User","site_admin":false},"created_at":"2017-12-18T01:12:52Z","updated_at":"2017-12-18T01:12:52Z","author_association":"CONTRIBUTOR","body":"API 追加\r\n\r\n```c\r\n/// @param id GeoObject ID\r\n/// return ビルボード設定が有効な場合は true, それ以外は false\r\nbool IsBillboard( int32 id )\r\n/// @param id GeoObject ID\r\n/// @param is_billboard ビルボード設定を有効にする場合は true, それ以外は false\r\nvoid SetBillboard( const bool is_billboard ) const;\r\n```\r\n"}}
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