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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. p5G O@^i  
    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  : t6-c{ZX>A  
    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. ?_n.B=H`8  
    多试几次就可以了.
    Zb);08X  
    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 8eOQRC33  
    The Backlight Utility was helpful to build the backlight system quickly. However, q &jW{  
    the bumps must be parameterized in order to get the desired output distribution. hb? |fi  
    You can do this easily using the LightTools Properties dialog box. y)(SS8JR  
    1.In the System Navigator, expand the items LightGuide, CubePrimitive_1, +[~\\X  
    BottomSurface, and Zones. Then, select Texture, as shown in the following j&8 ~X2?*  
    figure. zh50]tX  
    2.Right-click and select Properties on the shortcut menu. Pu axS  
    3.Select the Geometry tab. gVq{g,yi  
    4.Select the arrow next to the Placement drop-down list, and select Bezier. Click K h% x  
    Apply. k5}i^^.  
    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 *><] [|Y@H  
    parameters to match your design. Note that LightTools allows many other 5h20\b?=$  
    placement options, but you will use the Bezier placement option for this Q&F@[k  
    example. wkd591d*  
    5.On both the X Placement tab and Y Placement tab, change the Number of aMz%H|/$  
    Bumps parameter to 300, as shown in the following figure. Click Apply after OEAF.  
    each change. {b#c0>.8-  
    6.Click OK to close the dialog box. ;UWdT]>!?  
    Note that the number of bumps is 300 X 300, which results in about 90,000 }"cb^3  
    bumps on the surface (~ 5143 bumps/in2). These bumps are arranged in a 8D+OF 6CM  
    manner defined by the Bezier parameterization option. Please see Chapter 5 of L>@6lhD)x  
    the LightTools Core Module User’s Guide for more information. With the m,.d< **  
    current parameter values, the Bezier option varies the bump spacing along the 4&$G;?#W2  
    length of the light guide. The spacing in the orthogonal direction is constant. %@r h\Z  
    The X and Y refer to the local coordinate system of the surface. PD/~@OsxU  
    LightTools Introductory Tutorial * 91 !'[sV^ ds  
    <R !qOQI  
    HAPTER 5 Introduction to Backlight Design GN~:rdd  
    C Cu|n?Uk  
    Examining Surface Properties _6(zG.Fg  
    Using the methods described in previous chapters, you may want to check your 2ag]p  
    model before you run a simulation. c9'#G>&h~^  
    Click on various parts of the model in the 3D Design View. Or use the System %3C,jg  
    Navigator to select different surfaces and view their Properties. n" MFC  
    1.In the System Navigator, click to open BottomSurface of the LightGuide, then c?opVbJB\  
    click Zones, and then click Texture. \Xkx`C  
    2.Select SphericalElement, and then right-click and select Properties from the [6-l6W  
    shortcut menu. The Shape tab shows you a graphical representation of the RCmPZ  
    spherical bump shape that is the bottom of the light guide. g^]Q*EBa  
    You might be curious as to why you cannot see the 3D texture property zones you KlrKGmy,)  
    defined. They are invisible by default, because drawing thousands of texture Cu`ZgK LQ  
    elements can make displaying and exploring the model somewhat slow. If you \XpPb{:>  
    choose to make them visible, 3D textures are displayed in wireframe, even if the e~-D k .i  
    display mode is set to translucent. Wireframe rendering displays a bit faster and ZU:gNO0  
    shows more of the technical details. $[>wJXj3R  
    92 * LightTools Introductory Tutorial nTHP~]  
    2R5]UR S  
    HAPTER 5 Introduction to Backlight Design HQE#O4  
    C F`ihw[ Wn  
    1.Rotate and zoom the model to that you can see something like the illustration i>rn!?b  
    below: qt1# P  
    . ZPMEN,Dw  
    2.To reveal the Property Zones: oZ8SEC "]  
    a.Right-click in the Design View and select View Preferences to display this =-q)I[4#  
    dialog box. G!Uq#l>  
    b.On the Visibility tab, click the Property Zone check box to turn it on. QUe.vb^O  
    c.Click OK. R]r~TJ o  
    You will see the wire frame rendering of the spherical bumps on the :WxMv~e{U  
    bottom surface, and a solid color above it. The solid color is the 3D texture gWlmQl  
    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 MBg^U<t8  
    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 [oYe/<3  
    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 qS7*.E~j|]  
    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 crmnh4-  
    贴上你在cad中读出的数据就好了。半径的参数一样办理 M 35}5+  
    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