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05eb6d2b
T
three.js
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05eb6d2b
编写于
3月 16, 2012
作者:
Z
zz85
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差异文件
merge WestLangley changes
上级
d7899540
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1
隐藏空白更改
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Showing
1 changed file
with
29 addition
and
16 deletion
+29
-16
src/extras/helpers/ArrowHelper.js
src/extras/helpers/ArrowHelper.js
+29
-16
未找到文件。
src/extras/helpers/ArrowHelper.js
浏览文件 @
05eb6d2b
...
...
@@ -2,43 +2,56 @@
* @author WestLangley / https://github.com/WestLangley
* @author zz85 / https://github.com/zz85
*/
THREE
.
ArrowHelper
=
function
(
origin
,
dir
,
scale
,
color
)
{
THREE
.
ArrowHelper
=
function
(
origin
,
dir
,
length
,
hex
)
{
THREE
.
Object3D
.
call
(
this
);
// line
var
lineGeometry
=
new
THREE
.
Geometry
();
lineGeometry
.
vertices
.
push
(
new
THREE
.
Vertex
()
);
lineGeometry
.
vertices
.
push
(
new
THREE
.
Vertex
(
new
THREE
.
Vector3
(
0
,
1
,
0
)
)
);
line
=
new
THREE
.
Line
(
lineGeometry
,
new
THREE
.
LineBasicMaterial
(
{
color
:
color
}
)
);
line
=
new
THREE
.
Line
(
lineGeometry
,
new
THREE
.
LineBasicMaterial
(
{
color
:
hex
}
)
);
this
.
add
(
line
);
// tip
var
coneGeometry
=
new
THREE
.
CylinderGeometry
(
0
,
0.05
,
0.25
,
5
,
1
);
cone
=
new
THREE
.
Mesh
(
coneGeometry
,
new
THREE
.
MeshBasicMaterial
(
{
color
:
color
}
)
);
cone
=
new
THREE
.
Mesh
(
coneGeometry
,
new
THREE
.
MeshBasicMaterial
(
{
color
:
hex
}
)
);
cone
.
position
.
set
(
0
,
1
,
0
);
this
.
add
(
cone
);
// position
this
.
position
=
origin
;
this
.
orientate
(
dir
);
this
.
setDirection
(
dir
);
this
.
s
cale
.
set
(
scale
,
scale
,
scale
);
this
.
s
etLength
(
length
);
};
THREE
.
ArrowHelper
.
prototype
=
new
THREE
.
Object3D
();
THREE
.
ArrowHelper
.
prototype
.
constructor
=
THREE
.
ArrowHelper
;
THREE
.
ArrowHelper
.
prototype
.
orientate
=
function
(
dir
)
{
// orientation - object matrix
THREE
.
ArrowHelper
.
prototype
.
setDirection
=
function
(
dir
)
{
var
axis
=
new
THREE
.
Vector3
(
0
,
1
,
0
).
crossSelf
(
dir
);
var
radians
=
Math
.
acos
(
new
THREE
.
Vector3
(
0
,
1
,
0
).
dot
(
dir
.
normalize
()
)
);
var
rotationMatrix
=
new
THREE
.
Matrix4
();
rotationMatrix
.
setRotationAxis
(
axis
.
normalize
(),
radians
);
this
.
matrix
.
multiplySelf
(
rotationMatrix
);
// orientation - euler rotation vector
var
radians
=
Math
.
acos
(
new
THREE
.
Vector3
(
0
,
1
,
0
).
dot
(
dir
.
clone
().
normalize
()
)
);
this
.
matrix
=
new
THREE
.
Matrix4
().
setRotationAxis
(
axis
.
normalize
(),
radians
);
this
.
rotation
.
getRotationFromMatrix
(
this
.
matrix
,
this
.
scale
);
};
\ No newline at end of file
};
THREE
.
ArrowHelper
.
prototype
.
setLength
=
function
(
length
)
{
this
.
scale
.
set
(
length
,
length
,
length
);
};
THREE
.
ArrowHelper
.
prototype
.
setColor
=
function
(
hex
)
{
this
.
children
[
0
].
material
.
color
.
setHex
(
hex
);
this
.
children
[
1
].
material
.
color
.
setHex
(
hex
);
};
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