KS X ISO IEC 19777-1-2007 Information technology - Computer graphics and image processing - Extensible 3D (X3D) language bindings - Part 1 ECMAScript《信息技术 计算机制图和图像处理 可扩展3D(X3D)语言汇编.pdf

1、 KSKSKSKS KSKSKSK KSKSKS KSKSK KSKS KSK KS KS X ISO/IEC 197771 3D(X3D) 1：ECMAScript KS X ISO/IEC 197771 ：2007 (2012 ) 2007 11 29 http:/www.kats.go.krKS X ISO/IEC 197771：2007 : ( ) ( ) SJ ( ) : (JTC1/SC24) () ( ) () () KS X ISO/IEC 197771：2007 : (http:/www.standard.go.kr) ： ：2007 11 29 ：2012 12 28 20

2、12-0833 ： ： (JTC1/SC24) ( 02-509-7262) (http:/www.kats.go.kr). 10 5 , . KS X ISO/IEC 197771：2007 i ii .1 1 1 2 1 3 2 3.1 .2 3.2 .2 3.3 2 4 .9 4.1 9 4.2 EMCAScript .9 5 .15 5.1 .15 5.2 X3D ECMAScript 16 5.3 .16 5.4 .22 5.5 24 6 .24 6.1 24 6.2 24 6.3 .27 6.4 (Scene) .28 6.5 29 6.6 .29 6.7 () 46 6.8 .4

3、6 6.9 47 6.10 Script 53 A() ISO/IEC 14772 55 B() 56 .60 KS X ISO/IEC 197771：2007 ii . KS X ISO/IEC 19777 “ 3D(X3D) ” . 1：ECMAScript 2：Java KS X ISO/IEC 197771：2007 . A() ISO/IEC 14772 B() KS X ISO/IEC 197771：2007 (2012 ) 3D(X3D) 1：ECMAScript Information technologyComputer graphics and image processi

4、ngExtensible 3D(X3D) language bindings Part 1：ECMAScript 2006 1 ISO/IEC 197771, Information technologyComputer graphics and image processingExtensible 3D(X3D) language bindingsPart 1：ECMAScript , . 1 ISO/IEC 197752 (Application Programmer Interface：API) . , X3D . ECMAScript . 2 . . ( ) . KS X ISO/IE

5、C 88591, 8 1： 1 KS X ISO/IEC 16262, ECMAScript KS X ISO/IEC 197751, 3D(X3D)1： ISO/IEC 10641 ：1993, Information technologyComputer graphics and image processing Conformance testing of implementations of graphics standards ISO/IEC 147722：2004, Information technologyComputer graphics and image processi

6、ngThe Virtual Reality Modeling Language(VRML) ISO/IEC 197752 ：2004, Information technologyComputer graphics and image processing Extensible 3D(X3D) ISO/IEC 197762 ：2005, Information technologyComputer graphics, image processing and environmental data representationExtensible 3D(X3D) encodings KS X I

7、SO/IEC 197771：2007 2 3 3.1 3.1.1 . ISO/IEC 197752, Application programmer interface . 3.1.2 , ECMASCRIPT . . , . X3D , . void . ECMAScript , numeric numeric . , String . 3.2 3.2.1 ISO/IEC 14771 () ECMAScript . ECMAScript . . , . . ISO/IEC 197751 . , / . , XYZ . Browser.XYZ_customFunction(); , , . 3.

8、2.2 ECMAScript X3D . 3.3 3.3.1 KS X ISO/IEC 197771：2007 3 3.3.1.1 ECMAScript ECMAScript . SAI X3D . . , . , X3D Java . 3.3.1.2 3.3.1.2.1 ECMAScript . ECMAScript . , . 3.3.1.2.2 . . X3D , ECMAScript . , . . . 0 . , . comp = Browser.supportedComponents2; Browser get , ComponentInfoArray , 2 get . 3.3.

9、1.3 ECMAScript KS X ISO/IEC 16262, ECMAScript (built-in) . . , . 3.3.1.4 URLs 3.3.1.4.1 KS X ISO/IEC 197771：2007 4 URL . ECMAScript . 3.3.1.4.2 ECMAScript ECMAScript . ISO/IEC 197751 7. Conformance and minimum support requirements . . Script url “ecmascript: function foo() . “ url URL . Script url “

10、http:/ “ecmascript: function foo( ) . “ . 3.3.1.4.3 (HTTP ) MIME , ECMAScript .js. MIME , (3.3.3, Mime type ). 3.3.1.4.4 MIME ECMAScript MIME . application/ecmascript , MIME . application/x-ecmascript 3.3.2 3.3.2.1 ECMAScript . . KS X ISO/IEC 197771：2007 5 . , . X3D ECMAScript . 3.3.2.2 ECMAScript ,

11、 . , (6.2.3 .) . . 3.3.2.3 X3D ECMAScript HTML , X3D API . . . , (Shotdown) . . X3D , (X3D ) . 3.3.3 3.3.3.1 ECMAScript , ECMAScript X3D (, = false ). , . . . O1 = new SFVec3f(0, 0, 0); O2 = new SFVec3f(2, 4, 0); O1.x = 6; / O1 is (6, 0, 0) O2.y = O1.x; / O2 is (2, 6, 0) transform.translation = O2;

12、/call translation.setValue(2, 6, 0); ECMAScript . , equals() . , equals() . 3.3.3.2 , . X3D X3D X3D KS X ISO/IEC 197771：2007 6 . , . , , ( ECMAScript ) . / . ECMAScript . 3.3.3.3 (Interest registering service) . , (callback) . ECMAScript (interpreted language), . , ( ). . . . . 3.3.4 3.3.4.1 NULL EC

13、MAScript X3D NULL . SF . SF , null . 3.3.4.2 . , ECMAScript numeric, String, Boolean . , . SFVec3f , . 5. . 3.3.4.3 X3D ECMAScript , . 3.3.4.4 . . . , mfColorObjectNameindex index (0index ) . KS X ISO/IEC 197771：2007 7 set1value/get1value . setValue getValue . Index( ) . . 3.3.5 3.3.5.1 3.3.1.4, Sup

14、portedScriptURLs . 0 . X3D , . , . , . , eventsProcessed() , . 3.3.5.2 3.3.5.2.1 ECMAScript . , initializeOnly . inputOnly . . . . . . . . SF , this . , X3D X3DScriptNode . 3.3.5.2.2 initializeOnly . DEF SomeNode Transform Script field SFNode node USE SomeNode eventIn SFVec3f pos directOutput TRUE u

15、rl “ecmascript: function pos(value) KS X ISO/IEC 197771：2007 8 node.set_translation = value; “ Transform set_translation . . , . . , inputOutput “set_.” inputOnly “._changed” outputOnly . KS X ISO/IEC 197751(2.197751 ) . . inputOnly . . , SFColor inputOnly . inputOnly , . 1 inputOnly . 3.3.5.3 outpu

16、tOnly (, MF SF ) , . . . , , . , . . , (6, 6, 6) outputOnly SFVec3f foo_changed (4, 3, 1) . a = foo_changed; / copy by reference a(6,6,6) a.x = 5; / foo_changed(5,6,6) a.z = 1; / foo_changed(5,6,1) b = foo_changed; / copy by reference b(5,6,1) b.x = 4; / foo_changed(4,6,1) c = a; / copy by reference

17、 c(4,6,1) c.y = 3; / foo_changed(4,3,1) 3.3.5.4 ECMAScript . . ( ) inputOutput , set_ _changed . . SF. 3.3.4.3, X3D ECMAScript ECMAScript X3D . . KS X ISO/IEC 197771：2007 9 ECMAScript , . , start . Script eventIn SFBool start url “ecmascript: function start(value, timestamp) . “ , start , start() . 3.3.6 beginUpdate() put , endUpdate() . , . beginUpdate() , . put X3D . 3.3.7 ECMAScript