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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. ]H#Rm#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  : \W`}L  
    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. FW)^O%2s  
    多试几次就可以了.
    #EmffVtY  
    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 ST: v3*  
    The Backlight Utility was helpful to build the backlight system quickly. However, }+{*, z  
    the bumps must be parameterized in order to get the desired output distribution.  hmBnV  
    You can do this easily using the LightTools Properties dialog box. oDW<e'Jm  
    1.In the System Navigator, expand the items LightGuide, CubePrimitive_1, !$p2z_n$@.  
    BottomSurface, and Zones. Then, select Texture, as shown in the following 7~kpRa@\P  
    figure. })zB".  
    2.Right-click and select Properties on the shortcut menu. _b!;(~ @p  
    3.Select the Geometry tab. h/1nm U]  
    4.Select the arrow next to the Placement drop-down list, and select Bezier. Click m]0^  
    Apply. Siz!/O!'  
    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 RwAbIXG{0  
    parameters to match your design. Note that LightTools allows many other y:g7'+c  
    placement options, but you will use the Bezier placement option for this r/CEYEJ&X  
    example. ;Cr_NP[8|j  
    5.On both the X Placement tab and Y Placement tab, change the Number of i{ t TUA  
    Bumps parameter to 300, as shown in the following figure. Click Apply after gx!*O<|e4  
    each change. +A8=R%&b)[  
    6.Click OK to close the dialog box. L4YVH2`0)  
    Note that the number of bumps is 300 X 300, which results in about 90,000 O+G~Qp0b>  
    bumps on the surface (~ 5143 bumps/in2). These bumps are arranged in a ]z-']R;  
    manner defined by the Bezier parameterization option. Please see Chapter 5 of 5i!V}hE  
    the LightTools Core Module User’s Guide for more information. With the =bs.2aN&^  
    current parameter values, the Bezier option varies the bump spacing along the ! Q|J']|  
    length of the light guide. The spacing in the orthogonal direction is constant. My]+?.Ru  
    The X and Y refer to the local coordinate system of the surface. WF ?/GN  
    LightTools Introductory Tutorial * 91 -yX.Jv  
    \6`v.B&v  
    HAPTER 5 Introduction to Backlight Design S2J#b"Y  
    C do:QH.q8)  
    Examining Surface Properties "n{9- VEmN  
    Using the methods described in previous chapters, you may want to check your YPF&U4CN  
    model before you run a simulation. x @1px&^  
    Click on various parts of the model in the 3D Design View. Or use the System +M44XhT  
    Navigator to select different surfaces and view their Properties. KY4d+~2  
    1.In the System Navigator, click to open BottomSurface of the LightGuide, then y#]}5gJ  
    click Zones, and then click Texture. `fQM  
    2.Select SphericalElement, and then right-click and select Properties from the 'RDWU7c9]  
    shortcut menu. The Shape tab shows you a graphical representation of the La`h$=#`  
    spherical bump shape that is the bottom of the light guide. JQ*D   
    You might be curious as to why you cannot see the 3D texture property zones you (bg}an  
    defined. They are invisible by default, because drawing thousands of texture "DVt3E  
    elements can make displaying and exploring the model somewhat slow. If you 7<h.KZPc  
    choose to make them visible, 3D textures are displayed in wireframe, even if the kx|me~I  
    display mode is set to translucent. Wireframe rendering displays a bit faster and yB-.sGu  
    shows more of the technical details. HzP.aw4  
    92 * LightTools Introductory Tutorial yJnPD/i  
    WwW"fkv  
    HAPTER 5 Introduction to Backlight Design !+m@AQ:,  
    C .D+RLO z  
    1.Rotate and zoom the model to that you can see something like the illustration ]}BB/KQy^  
    below: FQ+8J7  
    . *Y8XP8u/  
    2.To reveal the Property Zones:  %)pP[[h  
    a.Right-click in the Design View and select View Preferences to display this riID,aut  
    dialog box. 'b8R#R\P  
    b.On the Visibility tab, click the Property Zone check box to turn it on. aQ&uC )w  
    c.Click OK. {J{1`@  
    You will see the wire frame rendering of the spherical bumps on the jyNb(Z  
    bottom surface, and a solid color above it. The solid color is the 3D texture FI\IY R  
    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 8zAg;b [  
    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 [G\o+D?2  
    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 Y:wF5pp;  
    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 f7Zf}1|  
    贴上你在cad中读出的数据就好了。半径的参数一样办理 L.kD,'G}>  
    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