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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. m%m/#\J E  
    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  : y-cRqIM  
    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. h$)!eSu  
    多试几次就可以了.
    F2:+i#lE  
    能详细说明吗?谢谢!
    离线oring
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    只看该作者 25楼 发表于: 2007-10-31
    lighttools有一個插件叫DXF Tool,可以把autocad的圖檔先轉成DXF檔,然後再吃進去lighttools,也可以把lighttools的網點轉出成dxf檔,讓autocad讀。
    离线chm85
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    只看该作者 26楼 发表于: 2007-11-13
    Parameterize the Bumps SSY E&  
    The Backlight Utility was helpful to build the backlight system quickly. However, 'IY?7+[  
    the bumps must be parameterized in order to get the desired output distribution. DNcf2_m  
    You can do this easily using the LightTools Properties dialog box. 3kx/Q#  
    1.In the System Navigator, expand the items LightGuide, CubePrimitive_1, r"x|]nvg^  
    BottomSurface, and Zones. Then, select Texture, as shown in the following m]R< :_  
    figure. <%#M&9d)E  
    2.Right-click and select Properties on the shortcut menu. {(U?)4@  
    3.Select the Geometry tab. ~>3$Id:  
    4.Select the arrow next to the Placement drop-down list, and select Bezier. Click &s->,-,  
    Apply. *>h"}e41  
    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 AWsO? |YT  
    parameters to match your design. Note that LightTools allows many other Vcz ExP  
    placement options, but you will use the Bezier placement option for this mjO4GpG3  
    example. /5 B{szf  
    5.On both the X Placement tab and Y Placement tab, change the Number of XrS.[  
    Bumps parameter to 300, as shown in the following figure. Click Apply after Ch%W C ,  
    each change. /.9j$iK#  
    6.Click OK to close the dialog box. X|^E+ `M4  
    Note that the number of bumps is 300 X 300, which results in about 90,000 7(rNJPrU~=  
    bumps on the surface (~ 5143 bumps/in2). These bumps are arranged in a tsVQXvo  
    manner defined by the Bezier parameterization option. Please see Chapter 5 of f=]+\0MQ  
    the LightTools Core Module User’s Guide for more information. With the /{vv n  
    current parameter values, the Bezier option varies the bump spacing along the qqA(Swe)T  
    length of the light guide. The spacing in the orthogonal direction is constant. qL.1N~$2  
    The X and Y refer to the local coordinate system of the surface. )XV|D  
    LightTools Introductory Tutorial * 91 \W=~@k  
    `9E:V=  
    HAPTER 5 Introduction to Backlight Design 3TVp oB`  
    C 6My=GByC  
    Examining Surface Properties 9\ZlRYnc=  
    Using the methods described in previous chapters, you may want to check your ^2%_AP0=  
    model before you run a simulation. 2a8ZU{wjn  
    Click on various parts of the model in the 3D Design View. Or use the System .lAqD-  
    Navigator to select different surfaces and view their Properties. eQ`TW'[9_6  
    1.In the System Navigator, click to open BottomSurface of the LightGuide, then /yPFts_q  
    click Zones, and then click Texture. @8E mY,{;  
    2.Select SphericalElement, and then right-click and select Properties from the h}r*   
    shortcut menu. The Shape tab shows you a graphical representation of the ! 7A _UA8  
    spherical bump shape that is the bottom of the light guide. `T7gfb%1-3  
    You might be curious as to why you cannot see the 3D texture property zones you R_ymTB}<t(  
    defined. They are invisible by default, because drawing thousands of texture F^.w:ad9<  
    elements can make displaying and exploring the model somewhat slow. If you (jd)sf6Tj[  
    choose to make them visible, 3D textures are displayed in wireframe, even if the MkgeECMf  
    display mode is set to translucent. Wireframe rendering displays a bit faster and ,e$]jC<sv2  
    shows more of the technical details. &6<>hqR^  
    92 * LightTools Introductory Tutorial t0h @i`  
    1Q"w)Ta  
    HAPTER 5 Introduction to Backlight Design ^kJ(bBY  
    C -x)Oo`  
    1.Rotate and zoom the model to that you can see something like the illustration x O?w8*d  
    below: 'X_8j` ]#  
    . is}6cR  
    2.To reveal the Property Zones: `>KB8SY:qK  
    a.Right-click in the Design View and select View Preferences to display this PDQC^2Z  
    dialog box. 3Kuu9< 0  
    b.On the Visibility tab, click the Property Zone check box to turn it on. CeQL8yJ;  
    c.Click OK. Ks'msSMC  
    You will see the wire frame rendering of the spherical bumps on the Gu[G_^>  
    bottom surface, and a solid color above it. The solid color is the 3D texture ,l/~epx4v)  
    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 LpRl!\FY$  
    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 dJyf.VJ  
    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 [R V_{F:'  
    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 ,liFo.kT8%  
    贴上你在cad中读出的数据就好了。半径的参数一样办理 H'2&3v  
    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