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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. +Edzjf~Tt  
    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  : |G(1[RNu  
    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. zv //K_  
    多试几次就可以了.
    lT.zNhz:d9  
    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 fXO_g  
    The Backlight Utility was helpful to build the backlight system quickly. However, f~ =r*&U  
    the bumps must be parameterized in order to get the desired output distribution. +\0T\;-Xe  
    You can do this easily using the LightTools Properties dialog box. yGTziv!  
    1.In the System Navigator, expand the items LightGuide, CubePrimitive_1, GWsd| kxU  
    BottomSurface, and Zones. Then, select Texture, as shown in the following |uI?ySF  
    figure. -v+&pG?m  
    2.Right-click and select Properties on the shortcut menu. fc@'9- pt  
    3.Select the Geometry tab. a2`%gh W3  
    4.Select the arrow next to the Placement drop-down list, and select Bezier. Click B8T\s)fxnX  
    Apply. XphE loL  
    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 yto[8;)_  
    parameters to match your design. Note that LightTools allows many other k$N0lR4:p  
    placement options, but you will use the Bezier placement option for this  c 6"Ib)  
    example. |7"$w%2  
    5.On both the X Placement tab and Y Placement tab, change the Number of 7]E m ,  
    Bumps parameter to 300, as shown in the following figure. Click Apply after :^i^0dC  
    each change. jV O{$j  
    6.Click OK to close the dialog box. Y9Z]i$qS&k  
    Note that the number of bumps is 300 X 300, which results in about 90,000 +5!&E7bcd  
    bumps on the surface (~ 5143 bumps/in2). These bumps are arranged in a !R'g59g  
    manner defined by the Bezier parameterization option. Please see Chapter 5 of VT\ "q1)p  
    the LightTools Core Module User’s Guide for more information. With the ?>$l  
    current parameter values, the Bezier option varies the bump spacing along the 6cz/n8Mg  
    length of the light guide. The spacing in the orthogonal direction is constant. *27*>W1  
    The X and Y refer to the local coordinate system of the surface. o.m:3!RW  
    LightTools Introductory Tutorial * 91 a~PK pw2%  
    *nC(-(r:J`  
    HAPTER 5 Introduction to Backlight Design NBYH;h P  
    C yVX8e I  
    Examining Surface Properties iafE5b)  
    Using the methods described in previous chapters, you may want to check your d$t40+v  
    model before you run a simulation. ~g6 3qs  
    Click on various parts of the model in the 3D Design View. Or use the System MHU74//fe  
    Navigator to select different surfaces and view their Properties. DF_X  
    1.In the System Navigator, click to open BottomSurface of the LightGuide, then q_V0+qH  
    click Zones, and then click Texture. O hVs#^  
    2.Select SphericalElement, and then right-click and select Properties from the =>iA gp'#  
    shortcut menu. The Shape tab shows you a graphical representation of the H,QTYXi "  
    spherical bump shape that is the bottom of the light guide. _%/}>L>-`8  
    You might be curious as to why you cannot see the 3D texture property zones you AY,].Zg[  
    defined. They are invisible by default, because drawing thousands of texture 0.Ta Xbi  
    elements can make displaying and exploring the model somewhat slow. If you z//VlB  
    choose to make them visible, 3D textures are displayed in wireframe, even if the =Yz'D|=t  
    display mode is set to translucent. Wireframe rendering displays a bit faster and HCWNo  
    shows more of the technical details. V5i*O3a~   
    92 * LightTools Introductory Tutorial E&`Nh5JfC  
    l{Dct\ #s  
    HAPTER 5 Introduction to Backlight Design 3djC;*,9,  
    C A\fb<  
    1.Rotate and zoom the model to that you can see something like the illustration 9QQyl\  
    below: gNYqAUG5  
    . up>c$jJ  
    2.To reveal the Property Zones: ;G\8jP'   
    a.Right-click in the Design View and select View Preferences to display this q1?&Ev^  
    dialog box. 8NBT|N~N  
    b.On the Visibility tab, click the Property Zone check box to turn it on. zCv"]%  
    c.Click OK. S35~Cp  
    You will see the wire frame rendering of the spherical bumps on the \xv;sl$f  
    bottom surface, and a solid color above it. The solid color is the 3D texture e:'?*BYVg3  
    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 ~t9tnLc$  
    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 C|pdv  
    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 P3$Q&^?  
    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 Mmpfto%i  
    贴上你在cad中读出的数据就好了。半径的参数一样办理 9mA{K    
    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