如何在lighttools内给导光板加上网点？ [复制链接]

这个软件那里有下载的，请帮帮小弟，谢谢。

小弟是新手，请问相对于ASAP，在设计导光板方面，LT有什么优和缺，能比较下吗？？？谢了

请问auto-cad的网点怎么导入啊，还有那个autolist是一个什么样的插件哦？

把网点参数写成.TXT格式,在导光板的TEXTURE中导入就可以在LT 中得到网点,只是中间要有个坐标转换,计算要精解. grc:Y  
多试几次就可以了.

引用第23楼286974144于2007-10-19 15:17发表的  : Je 31".  
把网点参数写成.TXT格式,在导光板的TEXTURE中导入就可以在LT 中得到网点,只是中间要有个坐标转换,计算要精解. XC2FF&B&  
多试几次就可以了.

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能详细说明吗？谢谢！

lighttools有一個插件叫DXF Tool，可以把autocad的圖檔先轉成DXF檔，然後再吃進去lighttools，也可以把lighttools的網點轉出成dxf檔，讓autocad讀。

Parameterize the Bumps WL1\y|  
The Backlight Utility was helpful to build the backlight system quickly. However, ^KbL ,T  
the bumps must be parameterized in order to get the desired output distribution. 1x{kl01m%  
You can do this easily using the LightTools Properties dialog box. vY_eDJ~'  
1.In the System Navigator, expand the items LightGuide, CubePrimitive_1, %J!NL0x_  
BottomSurface, and Zones. Then, select Texture, as shown in the following ot }6D  
figure. I0_Ecp  
2.Right-click and select Properties on the shortcut menu. #)]E8=}  
3.Select the Geometry tab. (hN?:q?'  
4.Select the arrow next to the Placement drop-down list, and select Bezier. Click *VDVC0R  
Apply. X3yS5whd(  
ghtTools Introductory Tutorial

The default number of bumps is 100 (10 X 10). You need to change these fEwifSp.  
parameters to match your design. Note that LightTools allows many other V:Mk)8Gf|  
placement options, but you will use the Bezier placement option for this d}+W"j;  
example. 5\'AD^{  
5.On both the X Placement tab and Y Placement tab, change the Number of l9J*um-  
Bumps parameter to 300, as shown in the following figure. Click Apply after F 7LiG9H6`  
each change. <u0,Fp  
6.Click OK to close the dialog box. bo>E"<  
Note that the number of bumps is 300 X 300, which results in about 90,000 QC7k~I8  
bumps on the surface (~ 5143 bumps/in2). These bumps are arranged in a F
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manner defined by the Bezier parameterization option. Please see Chapter 5 of p+Lv=e)0u  
the LightTools Core Module User’s Guide for more information. With the Mk5RHDh  
current parameter values, the Bezier option varies the bump spacing along the hKN6y%  
length of the light guide. The spacing in the orthogonal direction is constant. ) rpq+~b  
The X and Y refer to the local coordinate system of the surface. b#='^W3  
LightTools Introductory Tutorial * 91 T1zi0fa'  
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HAPTER 5 Introduction to Backlight Design x0<^<D&Q  
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Examining Surface Properties Q0>q:aj\  
Using the methods described in previous chapters, you may want to check your 1-o V-K  
model before you run a simulation. 0Oap39  
Click on various parts of the model in the 3D Design View. Or use the System 1EsqQz*$u  
Navigator to select different surfaces and view their Properties. n&d/?aJ7a\  
1.In the System Navigator, click to open BottomSurface of the LightGuide, then /b%Q[ Ck_  
click Zones, and then click Texture. $[z<oN_Q  
2.Select SphericalElement, and then right-click and select Properties from the "~\*If  
shortcut menu. The Shape tab shows you a graphical representation of the Ep ">v>"  
spherical bump shape that is the bottom of the light guide. X-/Ban  
You might be curious as to why you cannot see the 3D texture property zones you _ECB^s_  
defined. They are invisible by default, because drawing thousands of texture IU9, (E  
elements can make displaying and exploring the model somewhat slow. If you GFL-.? 0  
choose to make them visible, 3D textures are displayed in wireframe, even if the #pA[k-  
display mode is set to translucent. Wireframe rendering displays a bit faster and e=>
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shows more of the technical details. 5[R?iSGL1  
92 * LightTools Introductory Tutorial (0C&z/  
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HAPTER 5 Introduction to Backlight Design Y[G9Vok VX  
C BY( eV!  
1.Rotate and zoom the model to that you can see something like the illustration *eGM7o*\X  
below: N!c g
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. D=&K&6rr  
2.To reveal the Property Zones: $$4W}Ug3U  
a.Right-click in the Design View and select View Preferences to display this RxG^  
dialog box. P%)b+H{$h  
b.On the Visibility tab, click the Property Zone check box to turn it on. <L&eh&4c  
c.Click OK. hW' H
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You will see the wire frame rendering of the spherical bumps on the '9q6aM/&  
bottom surface, and a solid color above it. The solid color is the 3D texture m UgRm]  
of the BEFs (brightness-enhancing films) built automatically by the utility.   

看看这个有点帮助!

１　是autolisp 不是autolist N-%#\rPq.  
2　在autocad中是用autolisp编写插件，实现将网点参数之坐标和半径读取并另存为 } yq  
txt档的命令，只要有坐标和半径就ok了，excel档也无所谓。看你喜欢 =l,#iYJP8  
３　在lighttoools使用texture命令，建立一个圆点的矩阵，在坐标一栏中，把原有的删除 _}ele+  
贴上你在cad中读出的数据就好了。半径的参数一样办理 ,sI35I J  
４　关键是cad中网点的坐标位置要和lighttools模型的位置对应的上，否则，你贴上去网点位置在离模型很远的地方就不厚道了