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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. q ;@:,^  
    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  : BjT0m k"P  
    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. >3S^9{d  
    多试几次就可以了.
    Iw ? M>'l  
    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 4XkSj9D~z  
    The Backlight Utility was helpful to build the backlight system quickly. However, t~xp&LQiY  
    the bumps must be parameterized in order to get the desired output distribution. yDt3)fP#  
    You can do this easily using the LightTools Properties dialog box. [Z3B~c  
    1.In the System Navigator, expand the items LightGuide, CubePrimitive_1, zc QFIP  
    BottomSurface, and Zones. Then, select Texture, as shown in the following \O"EK~x}/  
    figure. 4{d`-reHg  
    2.Right-click and select Properties on the shortcut menu. +4kBd<0Y  
    3.Select the Geometry tab. y;N[#hY#CD  
    4.Select the arrow next to the Placement drop-down list, and select Bezier. Click !aSu;Ln  
    Apply. &yKUf  
    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 *o8DfZ  
    parameters to match your design. Note that LightTools allows many other P:z5/??2S  
    placement options, but you will use the Bezier placement option for this EUv xil  
    example. b|i94y(  
    5.On both the X Placement tab and Y Placement tab, change the Number of * \@u,[,  
    Bumps parameter to 300, as shown in the following figure. Click Apply after `(|jm$Q  
    each change. ^-3R+U- S  
    6.Click OK to close the dialog box. Qt_LBJUWV  
    Note that the number of bumps is 300 X 300, which results in about 90,000 c&Pgz~iP  
    bumps on the surface (~ 5143 bumps/in2). These bumps are arranged in a @u./VK  
    manner defined by the Bezier parameterization option. Please see Chapter 5 of `P&L. m]|  
    the LightTools Core Module User’s Guide for more information. With the P)?)H]J"  
    current parameter values, the Bezier option varies the bump spacing along the gA e*kf1  
    length of the light guide. The spacing in the orthogonal direction is constant. 9aw- n*<  
    The X and Y refer to the local coordinate system of the surface. '1{#I/P;  
    LightTools Introductory Tutorial * 91 pn6 e{   
    Vi~9[&.E\!  
    HAPTER 5 Introduction to Backlight Design G]fl33_}l  
    C lY5a=mwHU  
    Examining Surface Properties ;!(.hCHvr  
    Using the methods described in previous chapters, you may want to check your }.<%46_Z-  
    model before you run a simulation. 4_3 DQx9s  
    Click on various parts of the model in the 3D Design View. Or use the System m: 77pE&o  
    Navigator to select different surfaces and view their Properties. o@}+b}R}  
    1.In the System Navigator, click to open BottomSurface of the LightGuide, then MtAD&+3$  
    click Zones, and then click Texture. F=C8U$'S  
    2.Select SphericalElement, and then right-click and select Properties from the 7Zl- |  
    shortcut menu. The Shape tab shows you a graphical representation of the sF?N vp  
    spherical bump shape that is the bottom of the light guide. eATX8`W  
    You might be curious as to why you cannot see the 3D texture property zones you fu/v1Nhm  
    defined. They are invisible by default, because drawing thousands of texture gk+$CyjJ  
    elements can make displaying and exploring the model somewhat slow. If you CB5 ~!nKv&  
    choose to make them visible, 3D textures are displayed in wireframe, even if the 3AWNoXh  
    display mode is set to translucent. Wireframe rendering displays a bit faster and P7n+@ L$  
    shows more of the technical details. J7R+|GTcx  
    92 * LightTools Introductory Tutorial pQaP9Y{OK  
    ,*fvA?  
    HAPTER 5 Introduction to Backlight Design C[$uf  
    C DXAA[hUjF  
    1.Rotate and zoom the model to that you can see something like the illustration Hh=D:kE  
    below: @b=b>V[d6  
    . ' vO+,-  
    2.To reveal the Property Zones: %=J<WA6\  
    a.Right-click in the Design View and select View Preferences to display this %Uk]e5Hu  
    dialog box. XJ;kyEx3=O  
    b.On the Visibility tab, click the Property Zone check box to turn it on. Pm]6E[zC  
    c.Click OK. C% <[mM  
    You will see the wire frame rendering of the spherical bumps on the {5U;9: sO6  
    bottom surface, and a solid color above it. The solid color is the 3D texture CUOxx,V  
    of the BEFs (brightness-enhancing films) built automatically by the utility.   
    离线chm85
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    只看该作者 28楼 发表于: 2007-11-13
    看看这个有点帮助!
    离线stars-man
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    只看该作者 29楼 发表于: 2007-12-01
    1 是autolisp 不是autolist [#H$@g|CT  
    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 6C>x,kU  
    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 ;pdW7  
    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 +<Ot@luE  
    贴上你在cad中读出的数据就好了。半径的参数一样办理 krm&.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