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0f5bc025
T
three.js
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体验新版 GitCode,发现更多精彩内容 >>
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0f5bc025
编写于
5月 10, 2014
作者:
M
Mr.doob
浏览文件
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浏览文件
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电子邮件补丁
差异文件
ArrowHelper: Reuse line geometry and cone geometry.
上级
55b66f6e
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
26 addition
and
22 deletion
+26
-22
src/extras/helpers/ArrowHelper.js
src/extras/helpers/ArrowHelper.js
+26
-22
未找到文件。
src/extras/helpers/ArrowHelper.js
浏览文件 @
0f5bc025
...
...
@@ -14,38 +14,42 @@
* headWidth - Number
*/
THREE
.
ArrowHelper
=
function
(
dir
,
origin
,
length
,
color
,
headLength
,
headWidth
)
{
// dir is assumed to be normalized
THREE
.
Object3D
.
call
(
this
);
if
(
color
===
undefined
)
color
=
0xffff00
;
if
(
length
===
undefined
)
length
=
1
;
if
(
headLength
===
undefined
)
headLength
=
0.2
*
length
;
if
(
headWidth
===
undefined
)
headWidth
=
0.2
*
headLength
;
this
.
position
.
copy
(
origin
);
THREE
.
ArrowHelper
=
(
function
(){
var
lineGeometry
=
new
THREE
.
Geometry
();
lineGeometry
.
vertices
.
push
(
new
THREE
.
Vector3
(
0
,
0
,
0
)
);
lineGeometry
.
vertices
.
push
(
new
THREE
.
Vector3
(
0
,
1
,
0
)
);
this
.
line
=
new
THREE
.
Line
(
lineGeometry
,
new
THREE
.
LineBasicMaterial
(
{
color
:
color
}
)
);
this
.
line
.
matrixAutoUpdate
=
false
;
this
.
add
(
this
.
line
);
var
coneGeometry
=
new
THREE
.
CylinderGeometry
(
0
,
0.5
,
1
,
5
,
1
);
coneGeometry
.
applyMatrix
(
new
THREE
.
Matrix4
().
makeTranslation
(
0
,
-
0.5
,
0
)
);
this
.
cone
=
new
THREE
.
Mesh
(
coneGeometry
,
new
THREE
.
MeshBasicMaterial
(
{
color
:
color
}
)
);
this
.
cone
.
matrixAutoUpdate
=
false
;
this
.
add
(
this
.
cone
);
return
function
(
dir
,
origin
,
length
,
color
,
headLength
,
headWidth
)
{
// dir is assumed to be normalized
this
.
setDirection
(
dir
);
this
.
setLength
(
length
,
headLength
,
headWidth
);
THREE
.
Object3D
.
call
(
this
);
};
if
(
color
===
undefined
)
color
=
0xffff00
;
if
(
length
===
undefined
)
length
=
1
;
if
(
headLength
===
undefined
)
headLength
=
0.2
*
length
;
if
(
headWidth
===
undefined
)
headWidth
=
0.2
*
headLength
;
this
.
position
.
copy
(
origin
);
this
.
line
=
new
THREE
.
Line
(
lineGeometry
,
new
THREE
.
LineBasicMaterial
(
{
color
:
color
}
)
);
this
.
line
.
matrixAutoUpdate
=
false
;
this
.
add
(
this
.
line
);
this
.
cone
=
new
THREE
.
Mesh
(
coneGeometry
,
new
THREE
.
MeshBasicMaterial
(
{
color
:
color
}
)
);
this
.
cone
.
matrixAutoUpdate
=
false
;
this
.
add
(
this
.
cone
);
this
.
setDirection
(
dir
);
this
.
setLength
(
length
,
headLength
,
headWidth
);
}
}()
);
THREE
.
ArrowHelper
.
prototype
=
Object
.
create
(
THREE
.
Object3D
.
prototype
);
...
...
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