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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. K@U[x,Sx  
    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  : @V}!elV  
    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. w 3kX!%a:  
    多试几次就可以了.
    >p*7)  
    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 oM^VtH=>  
    The Backlight Utility was helpful to build the backlight system quickly. However, XwZR Kh\>=  
    the bumps must be parameterized in order to get the desired output distribution. laRn![[  
    You can do this easily using the LightTools Properties dialog box. V}h <,E9  
    1.In the System Navigator, expand the items LightGuide, CubePrimitive_1, sK@]|9ciQ  
    BottomSurface, and Zones. Then, select Texture, as shown in the following ~KYA{^`*  
    figure. @$fvhEkrT@  
    2.Right-click and select Properties on the shortcut menu. uCx6/ n6'  
    3.Select the Geometry tab. ^U9b)KA  
    4.Select the arrow next to the Placement drop-down list, and select Bezier. Click ;$vVYC  
    Apply. 3!op'X!  
    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 #y8Esik  
    parameters to match your design. Note that LightTools allows many other D}rnp wp{  
    placement options, but you will use the Bezier placement option for this 8/@*6J  
    example. qN'%q+n  
    5.On both the X Placement tab and Y Placement tab, change the Number of TB_OFbI2  
    Bumps parameter to 300, as shown in the following figure. Click Apply after x<5;#  
    each change. 7O~hA*Z  
    6.Click OK to close the dialog box. _D{{C  
    Note that the number of bumps is 300 X 300, which results in about 90,000 4}t$Lf_  
    bumps on the surface (~ 5143 bumps/in2). These bumps are arranged in a &hE k m  
    manner defined by the Bezier parameterization option. Please see Chapter 5 of h ^Wm03w  
    the LightTools Core Module User’s Guide for more information. With the [+!~RV_  
    current parameter values, the Bezier option varies the bump spacing along the S]ed96V v  
    length of the light guide. The spacing in the orthogonal direction is constant. RgD:"zeM  
    The X and Y refer to the local coordinate system of the surface. 3F9dr@I.7  
    LightTools Introductory Tutorial * 91 WeIi{<u8R  
    sWq@E6,I  
    HAPTER 5 Introduction to Backlight Design 7g4IAsoD  
    C NftR2  
    Examining Surface Properties K8uqLSP '  
    Using the methods described in previous chapters, you may want to check your 0pBG^I`_  
    model before you run a simulation. bwK1XlfD.s  
    Click on various parts of the model in the 3D Design View. Or use the System CpU y~  
    Navigator to select different surfaces and view their Properties. c3)6{  
    1.In the System Navigator, click to open BottomSurface of the LightGuide, then nFjaV`6`@  
    click Zones, and then click Texture. q4niA  
    2.Select SphericalElement, and then right-click and select Properties from the { 3Qlx/6<  
    shortcut menu. The Shape tab shows you a graphical representation of the 2E.D0E Cu  
    spherical bump shape that is the bottom of the light guide. +vYVx<uTQ  
    You might be curious as to why you cannot see the 3D texture property zones you @Ll^ze&HI  
    defined. They are invisible by default, because drawing thousands of texture s,j=Kym%  
    elements can make displaying and exploring the model somewhat slow. If you g{Hb3id9  
    choose to make them visible, 3D textures are displayed in wireframe, even if the zCrM~  
    display mode is set to translucent. Wireframe rendering displays a bit faster and ~Efi|A/  
    shows more of the technical details. q+)s  
    92 * LightTools Introductory Tutorial 36d6KS 7  
    Bam 4%G5  
    HAPTER 5 Introduction to Backlight Design BAy)P1  
    C ~,{nBp9*  
    1.Rotate and zoom the model to that you can see something like the illustration 8*sP  
    below: )5x,-m@  
    . r#c+{yY  
    2.To reveal the Property Zones: 85{@&T  
    a.Right-click in the Design View and select View Preferences to display this bKQ-PM&I/t  
    dialog box. H,)2Ou-Wn  
    b.On the Visibility tab, click the Property Zone check box to turn it on. N#^o,/  
    c.Click OK. Lmc"q FzK  
    You will see the wire frame rendering of the spherical bumps on the cN7|Zsc\  
    bottom surface, and a solid color above it. The solid color is the 3D texture 6z5?9I4[  
    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 `JXi/#`  
    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 +7bV  
    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 OEs!H]v  
    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 }@jT-t]P  
    贴上你在cad中读出的数据就好了。半径的参数一样办理 J/^|Y6  
    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