VRML2.0\u6709\u5341\u56db\u4e2a\u5173\u952e\u5b57\uff0c\u5b83\u4eec\u4e0d\u80fd\u4f5c\u4e3a\u81ea\u5b9a\u4e49\u7684\u57df\u540d\uff0c\u8282\u70b9\u540d\u548c\u5bf9\u8c61\u540d\u3002
\uff081\uff09DEF\uff1a\u7ed9\u540e\u7eed\u7684\u8282\u70b9\u547d\u540d\uff0c\u8fd9\u4e2a\u540d\u5b57\u5c31\u662f\u8282\u70b9\u540d\uff0c\u5178\u578b\u683c\u5f0f\u4e3a\uff1a
DEF \u8282\u70b9\u540d \u8282\u70b9
\uff082\uff09USE: \u5f15\u7528DEF\u5b9a\u4e49\u7684\u8282\u70b9\u540d\uff0c\u5178\u578b\u683c\u5f0f\u4e3a\uff1a
USE \u8282\u70b9\u540d
\uff083\uff09TRUE\uff1a\u8868\u793a\u201c\u771f\u201d\uff0c\u201c\uff11\u201d\uff0c\u201c\u662f\u201d\u7b49\uff0c\u7528\u4e8e\u7ed9SFBool\u57df\u8d4b\u503c\u3002
\uff084\uff09FALSE\uff1a\u8868\u793a\u201c\u5047\u201d\uff0c\u201c0\u201d\uff0c\u201c\u5426\u201d\u7b49\uff0c\u7528\u4e8e\u7ed9SFBool\u57df\u8d4b\u503c\u3002
\uff085\uff09NULL\uff1a\u8868\u793a\u7a7a\u503c\uff0c\u7528\u4e8e\u7ed9SFNode\u57df\u8d4b\u7a7a\u503c\u3002
\uff086\uff09PROTO\uff1a\u7528\u4e8e\u58f0\u660e\u81ea\u5b9a\u4e49\u8282\u70b9\u7684\u539f\u578b\uff0c\u5178\u578b\u683c\u5f0f\u4e3a\uff1a
PROTO \u8282\u70b9\u540d\u79f0 [
\u57df\u7684\u81ea\u5b9a\u4e49\uff08\u5305\u62ec\u5176\u7f3a\u7701\u503c\uff09
\u4e8b\u4ef6\u7684\u81ea\u5b9a\u4e49
]{
\u6267\u884c\u4f53
}
\uff087\uff09EXTERNPROTO\uff1a\u7528\u4e8e\u9884\u89e3\u91ca\u5f15\u7528\u7684\u5916\u90e8\u5b9a\u4e49\u8282\u70b9\u7684\u539f\u578b\uff0c\u5178\u578b\u683c\u5f0f\u4e3a\uff1a
EXTERNPROTO \u8282\u70b9\u540d\u79f0 {
\u57df\u7684\u81ea\u5b9a\u4e49\uff08\u4e0d\u5305\u62ec\u5176\u7f3a\u7701\u503c\uff09
\u4e8b\u4ef6\u7684\u81ea\u5b9a\u4e49
]
\u5916\u90e8\u8282\u70b9\u7684\u8d44\u6e90\u5b9a\u4f4d\u3002
\u5176\u4e2d\u57df\u3001\u4e8b\u4ef6\u7684\u7c7b\u578b\u548c\u540d\u79f0\u5fc5\u987b\u4e0e\u5f15\u7528\u7684\u5916\u90e8\u8282\u70b9\u4e2d\u7684\u5b9a\u4e49\u4e00\u6837\u3002\u5916\u90e8\u8282\u70b9\u7684\u8d44\u6e90\u5b9a\u4f4d\u683c\u5f0f\u4e3a\uff1a
“URL\/URN”\u6216[“URL\/URN”\uff0c”URL\/URN”\uff0c\u00b7\u00b7\u00b7]\u3002
\u8d44\u6e90\u5b9a\u4f4d\u53ef\u4ee5\u4e3aURL\u6216URN\u683c\u5f0f\uff0c\u5f53\u4f7f\u7528”URL\/URN”\u6216[“URL\/URN”\uff0c”URL\/URN”\uff0c\u00b7\u00b7\u00b7]\u7684\u6570\u7ec4\u5f62\u5f0f\u65f6\uff0c\u6d4f\u89c8\u5668\u4f7f\u7528\u6570\u7ec4\u4e2d\u7b2c\u4e00\u4e2a\u6b63\u786e\u5bfb\u83b7\u7684\u8d44\u6e90\u3002\u8d44\u6e90\u7684\u5f62\u5f0f\u4e5f\u53ef\u4ee5\u5199\u4e3a\uff1a
URL\/URN # externProtytypeName
externProtytypeName\u4e3a\u5f15\u7528\u7684\u5916\u90e8\u8282\u70b9\u7684\u540d\u79f0\uff0c\u8fd9\u65f6\u5019\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e0e\u5916\u90e8\u8282\u70b9\u5b9a\u4e49\u7684\u540d\u79f0\u4e0d\u540c\u7684\u8282\u70b9\u540d\u79f0\u3002
\uff088\uff09ROUTE\uff1a\u6784\u6210\u4e8b\u4ef6\u901a\u8def\u3002\u5178\u578b\u683c\u5f0f\u4e3a\uff1a
ROUTE fromNode.fromEvent TO toNode.toEvent
fromNode \u4e3a\u53d1\u51fa\u4e8b\u4ef6\u7684\u8282\u70b9\u7684\u540d\u79f0\u3002
fromEvent \u4e3a\u4e8b\u4ef6\u8f93\u51fa\u7684\u540d\u79f0\u3002
toNode \u4e3a\u63a5\u53d7\u4e8b\u4ef6\u7684\u8282\u70b9\u7684\u540d\u79f0\u3002
toEvent \u4e3a\u4e8b\u4ef6\u8f93\u5165\u7684\u540d\u79f0\u3002
\uff089\uff09TO\uff1a\u89c1ROUTE\u7684\u8bf4\u660e\u3002
\uff0810\uff09eventIn\uff1a\u5b9a\u4e49\u4e8b\u4ef6\u8f93\u5165\uff0c\u5178\u578b\u683c\u5f0f\u4e3a\uff1a
eventIn \u6570\u503c\u7c7b\u578b \u4e8b\u4ef6\u540d\u3002
\uff0811\uff09eventOut\uff1a\u5b9a\u4e49\u4e8b\u4ef6\u8f93\u51fa\uff0c\u5178\u578b\u683c\u5f0f\u4e3a\uff1a
eventOut \u6570\u503c\u7c7b\u578b \u4e8b\u4ef6\u540d\u3002
\uff0812\uff09field\uff1a\u5b9a\u4e49\u79c1\u6709\u57df\uff0c\u5178\u578b\u683c\u5f0f\u4e3a\uff1a
field \u6570\u503c\u7c7b\u578b \u57df\u540d \u7f3a\u7701\u503c\u3002
\uff0813\uff09exposedField\uff1a\u5b9a\u4e49\u516c\u5171\u57df\uff0c\u5178\u578b\u683c\u5f0f\u4e3a\uff1a
exposedField \u6570\u503c\u7c7b\u578b \u57df\u540d \u7f3a\u7701\u503c\u3002
\uff0814\uff09IS\uff1a\u7528\u4e8e\u539f\u578b\u58f0\u660e\u4e2d\uff0c\u628a\u81ea\u5b9a\u4e49\u7684\u57df\u548c\u4e8b\u4ef6\u4e0e\u6267\u884c\u4f53\u4e2d\u8282\u70b9\u7684\u57df\u548c\u4e8b\u4ef6\u7b49\u540c\u8d77\u6765\u3002\u5178\u578b\u683c\u5f0f\u4e3a\uff1a
\u6267\u884c\u4f53\u4e2d\u8282\u70b9\u7684\u57df\u6216\u4e8b\u4ef6 IS \u81ea\u5b9a\u4e49\u7684\u57df\u6216\u4e8b\u4ef6 <\/p>\n","protected":false},"excerpt":{"rendered":"
VRML2.0\u6709\u5341\u56db\u4e2a\u5173\u952e\u5b57\uff0c\u5b83\u4eec\u4e0d\u80fd\u4f5c\u4e3a\u81ea\u5b9a\u4e49\u7684\u57df\u540d\uff0c\u8282\u70b9\u540d\u548c\u5bf9\u8c61\u540d\u3002 \uff081\uff09DEF\uff1a\u7ed9\u540e\u7eed\u7684\u8282\u70b9\u547d\u540d\uff0c\u8fd9\u4e2a … Continue reading VRML2.0\u5341\u56db\u4e2a\u5173\u952e\u5b57<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-332","post","type-post","status-publish","format-standard","hentry","without-featured-image"],"_links":{"self":[{"href":"https:\/\/1vr.cn\/index.php?rest_route=\/wp\/v2\/posts\/332","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/1vr.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/1vr.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/1vr.cn\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/1vr.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=332"}],"version-history":[{"count":1,"href":"https:\/\/1vr.cn\/index.php?rest_route=\/wp\/v2\/posts\/332\/revisions"}],"predecessor-version":[{"id":1000,"href":"https:\/\/1vr.cn\/index.php?rest_route=\/wp\/v2\/posts\/332\/revisions\/1000"}],"wp:attachment":[{"href":"https:\/\/1vr.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=332"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/1vr.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=332"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/1vr.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=332"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}