{"topic":{"id":6085,"title":"为啥这里 insert 不进去？","slug":"topic","userId":304,"categoryId":56,"createdAt":"2023-10-02 14:16:12.374889","bumpedAt":"2023-10-03 13:15:15.06502","views":323,"postsCount":2,"highestPostNumber":2,"likeCount":0,"closed":true,"pinned":false,"pinnedGlobally":false,"pinnedAt":null,"pinnedUntil":null,"isBanner":false,"excerpt":"是不是因为这个？","deletedAt":null,"isAnonymous":false,"isPrivate":false,"isMembersOnly":false,"category":{"id":56,"name":"计算机图形学","slug":"cg","color":"92278F"},"author":{"id":304,"username":"rarabura","name":"raraBura","avatarUrl":null},"realAuthor":{"id":304,"username":"rarabura","name":"raraBura","avatarUrl":null},"tags":[]},"posts":[{"id":12309,"postNumber":1,"raw":"[grid mode=\"tile\"]\n![屏幕截图 2023-10-02 221333|690x221](/uploads/image/e6/2e/e62e216f62eb7e8e08ee2c8cccda2b62f42541502e7e138b97ede9be18aac7b4.avif)\n![屏幕截图 2023-10-02 221350|690x371](/uploads/image/4c/e8/4ce8b306f96605b66027f5f0cc5539b5c17f0b350451ae0ec1dbf2853571f0ed.avif)\n[/grid]\n\n\n是不是因为这个？\n\n[grid mode=\"tile\"]\n![屏幕截图 2023-10-02 224007|690x292](/uploads/image/44/50/44509eef321ff12788a6d24fcf1095161af61717ae3ef65c02cd6966cd07dc3e.avif)\n![屏幕截图 2023-10-02 224029|690x211](/uploads/image/70/73/707309acbdadc74e753c26fa759750711ae358d97d5589579cee2c71a66ffe82.avif)\n![屏幕截图 2023-10-02 224042|690x457](/uploads/image/a3/13/a313c1ee39695327fd872d108193960d64f04135d1f31e6bb2ed4027660eed76.avif)\n[/grid]","cooked":"

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是不是因为这个？

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\n $\"屏幕截图$

\n","createdAt":"2023-10-02 14:16:12.454432","updatedAt":"2023-10-03 14:40:06.119721","replyToPostNumber":null,"replyCount":0,"likeCount":0,"wordCount":49,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":3,"publicVersion":3,"deletedAt":null,"isAnonymous":false,"user":{"id":304,"username":"rarabura","name":"raraBura","avatarUrl":null,"admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":12349,"postNumber":2,"raw":"从你发的最后一张截图来看，似乎所有的 `EdgeRecord` 都相等，这是几乎不可能的。因为 `EdgeRecord::cost` 是由两个端点的二次误差累加而来，几乎不可能存在两条边的 `cost` 相等。\n\n比较两个 `EdgeRecord` 对象时会直接比较它们的 `cost` 大小。你没有给出自己实现 `EdgeRecord` 构造函数的思路，所以我猜测你可能没有实现（或没有正确地实现）这个构造函数，导致所有 `EdgeRecord` 对象的 `cost` 值都没有算（或者没有算对），这才会出现无法插入 `set` 的情况。","cooked":"

从你发的最后一张截图来看，似乎所有的 EdgeRecord 都相等，这是几乎不可能的。因为 EdgeRecord::cost 是由两个端点的二次误差累加而来，几乎不可能存在两条边的 cost 相等。

比较两个 EdgeRecord 对象时会直接比较它们的 cost 大小。你没有给出自己实现 EdgeRecord 构造函数的思路，所以我猜测你可能没有实现（或没有正确地实现）这个构造函数，导致所有 EdgeRecord 对象的 cost 值都没有算（或者没有算对），这才会出现无法插入 set 的情况。

\n","createdAt":"2023-10-03 13:15:15.06502","updatedAt":"2023-10-03 13:39:35.670064","replyToPostNumber":null,"replyCount":0,"likeCount":0,"wordCount":169,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":1381,"username":"greyishsong","name":"greyishsong","avatarUrl":"/uploads/image/da/bc/dabc731b0311f59850625bbeb55ed969fcfac0430c5ef0f68441e5466b7aa496.avif","admin":false,"moderator":true,"signatureRaw":null,"signatureCooked":null}}],"hasMore":false,"lastReadPostNumber":1,"hasUrlPostNumber":false}