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FAQ

12 ⇒



X3D

 

X3D , , XML (eXtensible Markup Language, ) .

X3D Web3D ISO. 3.0 2003 . ( 2012) 3.3.

X3D VRML (Virtual Reality Modelling Language, ), 1990- .

 

 

HTML5

 

HTML5 ( 2012 ) HTML (HyperText Markup Language, ), -.

, , W3C (World Wide Web Consortium, ) HTML 4.01, ISO 2000 .

, - 2D- 3D-. ( API Javascript), ( HTML- DOM (Document Object Model, )).

<canvas> ( 4.8.11 ), <svg>, XML SVG (Scalable Vector Graphics, ) ( 4.8.16 ).

2012 , . , WebGL (Web-based Graphics Library, ), Khronos Group, Mozilla, Google, Apple, Opera, AMD Nvidia. WebGL <canvas>, Javascript GPU , . WebGL 2006 , 2011 .

3D- Fraunhofer X3DOM. 2009 .

 

 

X3DOM

 

X3DOM , WebGL - , X3D, .


X3DOM

 

<X3D> , X3DOM.

 

.
showLog true, false false /
showStat true, false false /
showProgress true, false, bar true / . . bar .
width 300px .
height 150px

 

X3DOM , <X3D> . , , :

<X3D style="left:0px; top:0px; width:100%; height:100%; border:none;">

 

 

X3DOM :

 

(Examine)

"e".

/ + Shift
/ + Ctrl
/ / + Alt
. .

(Walk)

"w".

(Fly)

"f".

(Helicopter)

"h".

/: 8/9

/: 6/7.

(Look at)

"l".

(Game)

"g".

.

Cursor right

 

:

r
a
u

 

 

 

X3DOM HTML- <X3D>, XML-, .

, , , , .. , . . (DEF/USE), , bounding box, backface culling, convex- . , real-time. .

, , , , . .

 

 

 

X3D X3D, http://www.web3d.org/files/specifications/19775-1/V3.3/Part01/Architecture.html

 

:

  2. ,
  3. , :
    1. (SFFloat, MFInt32)
    2. ([], [in], [out], [in,out]). . [] [in,out]

 

X3D, XML, XML ( ), ( ='' ).

,

 

<Viewpoint orientation='0 -1 0 0.05' position='0.13 2.51 11.24'> </Viewpoint>

 

, . .

.


X3D

SFBool true
MFBool true false false true
SFColor RGB 0 0.5 1.0
MFColor RGB 1 0 0, 0 1 0, 0 0 1
SFColorRGBA RGB alpha- () 0 0.5 1.0 0.75
MFColorRGBA RGB alpha- () 1 0 0 0.25, 0 1 0 0.5, 0 0 1 0.75
SFInt32 32-  
MFInt32 32- 1 2 3 4 5
SFFloat 1.0
MFFloat -1 2.0 3.14159
SFDouble 2.7128
MFDouble -1 2.0 3.14159
SFImage 2 2 3 0xFF0000 0x00FF00 0x0000FF 0xFF0000
MFImage 2 2 3 0xFF0000 0x00FF00 0x0000FF 0xFF0000, 2 2 3 0x00FF00 0x0000FF 0xFF0000 0xFF0000
SFNode <Shape />
MFNode <Shape /> <Transform />
SFRotation (3 , ) 0 1 0 1.57
MFRotation 0 1 0 0, 0 1 0 1.57, 0 1 0 3.14
SFString Hello world
MFString Hello world
SFTime  
MFTime −1 0 1 567890
SFVec2F/SFVec2D 2 / 0 1.5
MFVec2F/MFVec2D 2 / 1 0, 2 2, 3 4, 5 5
SFVec3F/SFVec3D 3 / 0 1.5 2
MFVec3F/MFVec3D 3 / 10 20 30, 4.4 −5.5 6.6

 

 

Shape: X3DShapeNode { SFNode [in,out] appearance NULL [X3DAppearanceNode] SFNode [in,out] geometry NULL [X3DGeometryNode] SFNode [in,out] metadata NULL [X3DMetadataObject] SFVec3f [] bboxCenter 0 0 0 (-∞,∞) SFVec3f [] bboxSize -1 -1 -1 [0,∞) or −1 −1 −1}

 

Shape .

Shape . , Appearance, , Material, / , . , Shape .

 

, , . . ( ) WebGL.

 

: solid.

, ( , ) 2 . (backface culling), . backface culling , , . , solid=false, backface culling.

 

, X3D, .

(0,0,0).

 

metadata () .

 

 

Box

 

Box: X3DGeometryNode {

SFNode [in,out] metadata NULL [X3DMetadataObject]

SFVec3f [] size 2 2 2 (0,∞)

SFBool [] solid TRUE

}

 

[] [in,out]. [in] [out] design-time .

:

size .

 

1x2x3 .

 

<!DOCTYPE html><html> <head> <meta http-equiv="Content-Type" content="text/html;charset=utf-8" /> <title> 1</title> <link rel="stylesheet" type="text/css" href="x3dom.css" /> <script type="text/javascript" src="x3dom.js"></script> </head> <body> <h1> 1</h1> <X3D> <Scene> <Shape> <Appearance> <Material></Material> </Appearance> <Box size=1 2 3></Box> </Shape> </Scene> </X3D> </body></html> html- . <Scene>, , , X3D-, .

Cylinder

 

 

Cylinder: X3DGeometryNode { SFNode [in,out] metadata NULL [X3DMetadataObject] SFBool [] bottom TRUE SFFloat [] height 2 (0,∞) SFFloat [] radius 1 (0,∞) SFBool [] side TRUE SFBool [] solid TRUE SFBool [] top TRUE}

 

 

radius height . 3 : side, top, bottom, true false ( true), , , (, , bottom=false).

 

 

Cone

 

.

 

Cone: X3DGeometryNode {

SFNode [in,out] metadata NULL [X3DMetadataObject]

SFBool [] bottom TRUE

SFFloat [] bottomRadius 1 (0,∞)

SFFloat [] height 2 (0,∞)

SFBool [] side TRUE

SFBool [] solid TRUE

}

 

:

bottomRadius

height

 

1 Y, 1 . Y.

 

 

Sphere

 

.

 

Sphere: X3DGeometryNode { SFNode [in,out] metadata NULL [X3DMetadataObject] SFFloat [] radius 1 (0,∞) SFBool [] solid TRUE}

 

:

radius

 

 

Text

 

Text 2D-.

 

Text: X3DGeometryNode { SFNode [in,out] fontStyle NULL [X3FontStyleNode] MFFloat [in,out] length [] [0,∞) SFFloat [in,out] maxExtent 0.0 [0,∞) SFNode [in,out] metadata NULL [X3DMetadataObject] MFString [in,out] string [] MFVec2f [out] lineBounds SFVec3f [out] origin SFVec2f [out] textBounds SFBool [] solid FALSE}

 

FontStyle: X3DFontStyleNode { SFNode [in,out] metadata NULL [X3DMetadataObject] MFString [] family "SERIF" SFBool [] horizontal TRUE MFString [] justify "BEGIN" ["BEGIN","END","FIRST","MIDDLE",""] SFString [] language "" SFBool [] leftToRight TRUE SFFloat [] size 1.0 (0,∞) SFFloat [] spacing 1.0 [0,∞) SFString [] style "PLAIN" ["PLAIN"|"BOLD"|"ITALIC"|"BOLDITALIC"|""] SFBool [] topToBottom TRUE}

 

Text:

string .

fontStyle FontStyle, .

maxExtent - .

length - .

 

FontStyle:

size - ( ).

family , ["Lucida Sans Typewriter", "Lucida Sans", "Helvetica", "SANS"]. , SERIF ( ), SANS ( ) TYPEWRITER ()

style - PLAIN, BOLD, ITALIC BOLDITALIC.

horizontal - TRUE, FALSE.

leftToRight - TRUE( ) FALSE().

topToBottom - TRUE( ) FALSE().

language - (2 ).

justify - BEGIN, MIDDLE END.

spacing - (1-normal, 2-double spacing, ..).

 

 

Torus

 

.

, X3DOM X3D.

:

innerRadius

outerRadius


 

, Transform.

 

Transform ()

:

 

Transform: X3DGroupingNode { MFNode [in] addChildren [X3DChildNode] MFNode [in] removeChildren [X3DChildNode] SFVec3f [in,out] center 0 0 0 (-∞,∞) MFNode [in,out] children [] [X3DChildNode] SFNode [in,out] metadata NULL [X3DMetadataObject] SFRotation [in,out] rotation 0 0 1 0 [-1,1] or (-∞,∞) SFVec3f [in,out] scale 1 1 1 (-∞, ∞) SFRotation [in,out] scaleOrientation 0 0 1 0 [-1,1] or (-∞,∞) SFVec3f [in,out] translation 0 0 0 (-∞,∞) SFVec3f [] bboxCenter 0 0 0 (-∞,∞) SFVec3f [] bboxSize -1 -1 -1 [0,∞) or −1 −1 −1}

 

:

center (0,0,0), .

children (, ), .

rotation , (3 X Y Z), .

scale / X Y Z ( ).

scaleOrientation .

translation X Y Z.

bboxCenter | -

bboxSize | (Bounding Box), children

addChildren | - ,

removeChildren | children.

 

children, .

Bounding Box , . .

( ) :

1) (, )

2)

3)


Appearance

.

:

 

Appearance: X3DAppearanceNode { SFNode [in,out] fillProperties NULL [FillProperties] SFNode [in,out] lineProperties NULL [LineProperties] SFNode [in,out] material NULL [X3DMaterialNode] SFNode [in,out] metadata NULL [X3DMetadataObject] MFNode [in,out] shaders [] [X3DShaderNode] SFNode [in,out] texture NULL [X3DTextureNode] SFNode [in,out] textureTransform NULL [X3DTextureTransformNode]}

Material

.

:

 

Material: X3DMaterialNode { SFFloat [in,out] ambientIntensity 0.2 [0,1] SFColor [in,out] diffuseColor 0.8 0.8 0.8 [0,1] SFColor [in,out] emissiveColor 0 0 0 [0,1] SFNode [in,out] metadata NULL [X3DMetadataObject] SFFloat [in,out] shininess 0.2 [0,1] SFColor [in,out] specularColor 0 0 0 [0,1] SFFloat [in,out] transparency 0 [0,1]}

 

:

diffuseColor (R G B, R,G B 0 1; , 0.5 0.5 0.5).

specularColor (R G B).

emissiveColor ( ) (R G B).

ambientIntensity ( 0 1). , .

shininess ( 0 1). , , , . , .

transparency ( 0 1)

 

 

TwoSidedMaterial

.

:

TwoSidedMaterial: X3DMaterialNode { SFFloat [in,out] ambientIntensity 0.2 [0,1] SFFloat [in,out] backAmbientIntensity 0.2 [0,1] SFColor [in,out] backDiffuseColor 0.8 0.8 0.8 [0,1] SFColor [in,out] backEmissiveColor 0 0 0 [0,1] SFFloat [in,out] backShininess 0.2 [0,1] SFColor [in,out] backSpecularColor 0 0 0 [0,1] SFFloat [in,out] backTransparency 0 [0,1] SFColor [in,out] diffuseColor 0.8 0.8 0.8 [0,1] SFColor [in,out] emissiveColor 0 0 0 [0,1] SFNode [in,out] metadata NULL [X3DMetadataObject] SFFloat [in,out] shininess 0.2 [0,1] SFBool [in,out] separateBackColor FALSE SFColor [in,out] specularColor 0 0 0 [0,1] SFFloat [in,out] transparency 0 [0,1]}

 

 

ImageTexture

 

.

:

ImageTexture: X3DTexture2DNode, X3DUrlObject { SFNode [in,out] metadata NULL [X3DMetadataObject] MFString [in,out] url [] [URI] SFBool [] repeatS TRUE SFBool [] repeatT TRUE SFNode [] textureProperties NULL [TextureProperties]}

 


 

X3D , , . , , Shape (Appearance), . , /// Color Normal.

() .

 

 

Coordinate

 

.

:

point

<Coordinate point='0 0 0, 1 1 1'></Coordinate>

 

 

Color ColorRGBA

 

Color RGB.

Color RGBA. (-).

 

:

color

<Color color='0 0 0, 1 1 1, 1 0 0, 0 1 0, 0 0 1'></Color>

<ColorRGBA color='0 0 0 0.5, 1 1 1 0.5, 1 0 0 0.5, 0 1 0 0.5, 0 0 1 0.5'></ColorRGBA>

 

 

Normal

 

.

 

:

vector

 

:

<normal vector=1 0 1, -1 0.5 -1, -2 0 -3> </normal>

3 .

, .

 

12 ⇒


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