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e70cfb48
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three.js
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体验新版 GitCode,发现更多精彩内容 >>
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e70cfb48
编写于
5月 23, 2013
作者:
W
WestLangley
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
Added Object3D.computeBoundingBox() and THREE.BoundingBoxHelper
上级
c22da229
变更
3
隐藏空白更改
内联
并排
Showing
3 changed file
with
85 addition
and
0 deletion
+85
-0
src/core/Object3D.js
src/core/Object3D.js
+55
-0
src/extras/helpers/BoundingBoxHelper.js
src/extras/helpers/BoundingBoxHelper.js
+29
-0
utils/build/includes/extras.json
utils/build/includes/extras.json
+1
-0
未找到文件。
src/core/Object3D.js
浏览文件 @
e70cfb48
...
...
@@ -41,6 +41,8 @@ THREE.Object3D = function () {
this
.
frustumCulled
=
true
;
this
.
boundingBox
=
null
;
this
.
userData
=
{};
};
...
...
@@ -442,6 +444,53 @@ THREE.Object3D.prototype = {
},
computeBoundingBox
:
function
()
{
// computes the world-axis-aligned bounding box of object (including its children),
// accounting for both the object's and childrens' world transforms
var
v1
=
new
THREE
.
Vector3
();
return
function
()
{
if
(
this
.
boundingBox
===
null
)
{
this
.
boundingBox
=
new
THREE
.
Box3
();
}
this
.
boundingBox
.
makeEmpty
();
var
scope
=
this
.
boundingBox
;
this
.
updateMatrixWorld
(
true
);
this
.
traverse
(
function
(
node
)
{
if
(
node
.
geometry
!==
undefined
&&
node
.
geometry
.
vertices
!==
undefined
)
{
var
vertices
=
node
.
geometry
.
vertices
;
for
(
var
i
=
0
,
il
=
vertices
.
length
;
i
<
il
;
i
++
)
{
v1
.
copy
(
vertices
[
i
]
);
v1
.
applyMatrix4
(
node
.
matrixWorld
);
scope
.
expandByPoint
(
v1
);
}
}
}
);
return
this
.
boundingBox
;
};
}(),
clone
:
function
(
object
)
{
if
(
object
===
undefined
)
object
=
new
THREE
.
Object3D
();
...
...
@@ -475,6 +524,12 @@ THREE.Object3D.prototype = {
object
.
frustumCulled
=
this
.
frustumCulled
;
if
(
this
.
boundingBox
instanceof
THREE
.
Box3
)
{
object
.
boundingBox
=
this
.
boundingBox
.
clone
();
}
object
.
userData
=
JSON
.
parse
(
JSON
.
stringify
(
this
.
userData
)
);
for
(
var
i
=
0
;
i
<
this
.
children
.
length
;
i
++
)
{
...
...
src/extras/helpers/BoundingBoxHelper.js
0 → 100644
浏览文件 @
e70cfb48
/**
* @author WestLangley / http://github.com/WestLangley
*/
// a helper to show the world-axis-aligned bounding box for an object
THREE
.
BoundingBoxHelper
=
function
(
object
,
hex
)
{
var
color
=
hex
||
0x888888
;
this
.
object
=
object
;
this
.
box
=
new
THREE
.
Box3
();
THREE
.
Mesh
.
call
(
this
,
new
THREE
.
CubeGeometry
(
1
,
1
,
1
),
new
THREE
.
MeshBasicMaterial
(
{
color
:
color
,
wireframe
:
true
}
)
);
};
THREE
.
BoundingBoxHelper
.
prototype
=
Object
.
create
(
THREE
.
Mesh
.
prototype
);
THREE
.
BoundingBoxHelper
.
prototype
.
update
=
function
()
{
this
.
object
.
computeBoundingBox
();
this
.
object
.
boundingBox
.
size
(
this
.
scale
);
this
.
object
.
boundingBox
.
center
(
this
.
position
);
};
utils/build/includes/extras.json
浏览文件 @
e70cfb48
...
...
@@ -46,6 +46,7 @@
"src/extras/helpers/AxisHelper.js"
,
"src/extras/helpers/ArrowHelper.js"
,
"src/extras/helpers/BoxHelper.js"
,
"src/extras/helpers/BoundingBoxHelper.js"
,
"src/extras/helpers/CameraHelper.js"
,
"src/extras/helpers/DirectionalLightHelper.js"
,
"src/extras/helpers/FaceNormalsHelper.js"
,
...
...
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