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    如何在lighttools内给导光板加上网点? [复制链接]

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    离线daoguang
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    只看该作者 20楼 发表于: 2007-05-06
    这个软件那里有下载的,请帮帮小弟,谢谢。
    离线trojan-1
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    只看该作者 21楼 发表于: 2007-07-01
    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
    离线ycl641
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    只看该作者 22楼 发表于: 2007-07-07
    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?
    离线286974144
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    只看该作者 23楼 发表于: 2007-10-19
    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. QEL3b4Vm  
    多试几次就可以了.
    离线陈宏桂
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    只看该作者 24楼 发表于: 2007-10-30
    引用第23楼286974144于2007-10-19 15:17发表的  : C@ z^{Z+  
    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. yX8$LOjE  
    多试几次就可以了.
    1@0ZP~LTB  
    能详细说明吗?谢谢!
    离线oring
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    只看该作者 25楼 发表于: 2007-10-31
    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。
    离线chm85
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    只看该作者 26楼 发表于: 2007-11-13
    Parameterize the Bumps wGf SVA-q\  
    The Backlight Utility was helpful to build the backlight system quickly. However, e[7n`ka '  
    the bumps must be parameterized in order to get the desired output distribution. Ol'Ct'_k,"  
    You can do this easily using the LightTools Properties dialog box. 4`7:gfrO,  
    1.In the System Navigator, expand the items LightGuide, CubePrimitive_1, /uzU]3KF~  
    BottomSurface, and Zones. Then, select Texture, as shown in the following Wf=D'6w  
    figure. G u-#wv5@  
    2.Right-click and select Properties on the shortcut menu. /_P5U E(  
    3.Select the Geometry tab. I vQ]-A}N  
    4.Select the arrow next to the Placement drop-down list, and select Bezier. Click Iw$7f kq  
    Apply. y  ZsC>  
    ghtTools Introductory Tutorial
    离线chm85
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    只看该作者 27楼 发表于: 2007-11-13
    The default number of bumps is 100 (10 X 10). You need to change these COa"zg  
    parameters to match your design. Note that LightTools allows many other w"O^CR)  
    placement options, but you will use the Bezier placement option for this io$!z=W  
    example. a 8Jn.!  
    5.On both the X Placement tab and Y Placement tab, change the Number of S& % G B  
    Bumps parameter to 300, as shown in the following figure. Click Apply after DUxj^,mf,  
    each change. &C+pen) Z  
    6.Click OK to close the dialog box. LuB-9[^<  
    Note that the number of bumps is 300 X 300, which results in about 90,000 uFIr.U$V  
    bumps on the surface (~ 5143 bumps/in2). These bumps are arranged in a 7W6tz\Y  
    manner defined by the Bezier parameterization option. Please see Chapter 5 of :Uf\r `a9  
    the LightTools Core Module User’s Guide for more information. With the Ax4nx!W,   
    current parameter values, the Bezier option varies the bump spacing along the V&E)4KBOs  
    length of the light guide. The spacing in the orthogonal direction is constant. 0S0 ?\r  
    The X and Y refer to the local coordinate system of the surface. bBBW7',[a  
    LightTools Introductory Tutorial * 91 'dp3>4  
    Lc!% 3,#.  
    HAPTER 5 Introduction to Backlight Design vJT %ET  
    C c@%:aiEl  
    Examining Surface Properties |~Hlv^6H  
    Using the methods described in previous chapters, you may want to check your +v3@WdLcD  
    model before you run a simulation. iXt >!f*  
    Click on various parts of the model in the 3D Design View. Or use the System 0Kxc$c  
    Navigator to select different surfaces and view their Properties. .AOf-a  
    1.In the System Navigator, click to open BottomSurface of the LightGuide, then GQOz\ic  
    click Zones, and then click Texture. & Me%ZM0  
    2.Select SphericalElement, and then right-click and select Properties from the q/[)Z @&(  
    shortcut menu. The Shape tab shows you a graphical representation of the :yo tpa  
    spherical bump shape that is the bottom of the light guide. PK@hf[YHe  
    You might be curious as to why you cannot see the 3D texture property zones you wIIxs_2Q0c  
    defined. They are invisible by default, because drawing thousands of texture f:gXXigY,  
    elements can make displaying and exploring the model somewhat slow. If you AXhV#nZt0  
    choose to make them visible, 3D textures are displayed in wireframe, even if the .V9/0  
    display mode is set to translucent. Wireframe rendering displays a bit faster and %Uj7 g>  
    shows more of the technical details. Y#EM]x5!=  
    92 * LightTools Introductory Tutorial ,c#=qb8""  
    .olDmFQD  
    HAPTER 5 Introduction to Backlight Design 4hep1Kz%  
    C Np=IZ npt  
    1.Rotate and zoom the model to that you can see something like the illustration 8r7~ >p~  
    below: ^~k2(DLk  
    . FOxMt;|M  
    2.To reveal the Property Zones: L, L>cmpM  
    a.Right-click in the Design View and select View Preferences to display this !fXwX3B  
    dialog box. )54;YK  
    b.On the Visibility tab, click the Property Zone check box to turn it on. #;?j]npg]  
    c.Click OK. ^fT|Wm<  
    You will see the wire frame rendering of the spherical bumps on the w~A{]s{ 4  
    bottom surface, and a solid color above it. The solid color is the 3D texture \*Ro a&<!  
    of the BEFs (brightness-enhancing films) built automatically by the utility.   
    离线chm85
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    只看该作者 28楼 发表于: 2007-11-13
    看看这个有点帮助!
    离线stars-man
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    只看该作者 29楼 发表于: 2007-12-01
    1 是autolisp 不是autolist /g}2QmvH  
    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 $Fx:w  
    txt档的命令,只要有坐标和半径就ok了,excel档也无所谓。看你喜欢 -I-u.!  
    3 在lighttoools使用texture命令,建立一个圆点的矩阵,在坐标一栏中,把原有的删除 +cS%b}O`$  
    贴上你在cad中读出的数据就好了。半径的参数一样办理 ?}4 =A&][  
    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