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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]z|OhG  
    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  : 5?Ao9Q]@  
    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. yodrX&"  
    多试几次就可以了.
    T1TZ+ \  
    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 T}On:*&  
    The Backlight Utility was helpful to build the backlight system quickly. However, \'b- ;exH  
    the bumps must be parameterized in order to get the desired output distribution. 4<HJD&@V  
    You can do this easily using the LightTools Properties dialog box. K6Ua~N^  
    1.In the System Navigator, expand the items LightGuide, CubePrimitive_1, ,g.=vQm:?  
    BottomSurface, and Zones. Then, select Texture, as shown in the following @~HD<K  
    figure. (]dZ+"O{  
    2.Right-click and select Properties on the shortcut menu. sP8B?Tn1W  
    3.Select the Geometry tab. 7 {<lH%Tn  
    4.Select the arrow next to the Placement drop-down list, and select Bezier. Click 7 4UE-H)  
    Apply. JC3)G/m(03  
    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 3~'F^=T.Y  
    parameters to match your design. Note that LightTools allows many other !ZdUW]  
    placement options, but you will use the Bezier placement option for this aKZD4;  
    example. g#*N@83C  
    5.On both the X Placement tab and Y Placement tab, change the Number of !9NAm?Fw  
    Bumps parameter to 300, as shown in the following figure. Click Apply after vA`.8U 0S  
    each change. =)LpMTz  
    6.Click OK to close the dialog box. L1BpY-=  
    Note that the number of bumps is 300 X 300, which results in about 90,000 9x\G(w  
    bumps on the surface (~ 5143 bumps/in2). These bumps are arranged in a st>t~a|T  
    manner defined by the Bezier parameterization option. Please see Chapter 5 of ;C%EF  
    the LightTools Core Module User’s Guide for more information. With the ?i"FdpW  
    current parameter values, the Bezier option varies the bump spacing along the f|)t[,c  
    length of the light guide. The spacing in the orthogonal direction is constant. a4YyELXe  
    The X and Y refer to the local coordinate system of the surface. /0(KKZ)  
    LightTools Introductory Tutorial * 91 Y@eUvz  
    e^TF.D?RS  
    HAPTER 5 Introduction to Backlight Design [OSUARm v  
    C 1g+<`1=KT  
    Examining Surface Properties 4{pa`o3  
    Using the methods described in previous chapters, you may want to check your 9OBPFF  
    model before you run a simulation. -D(!B56_  
    Click on various parts of the model in the 3D Design View. Or use the System /j As`"U  
    Navigator to select different surfaces and view their Properties. 5[k35 c{  
    1.In the System Navigator, click to open BottomSurface of the LightGuide, then ?9cy5z[  
    click Zones, and then click Texture. P8f-&(  
    2.Select SphericalElement, and then right-click and select Properties from the y C#{nUdw  
    shortcut menu. The Shape tab shows you a graphical representation of the tK*f8X+q  
    spherical bump shape that is the bottom of the light guide. w93,N+es6  
    You might be curious as to why you cannot see the 3D texture property zones you @UX`9]-P  
    defined. They are invisible by default, because drawing thousands of texture YzqhFFaj.  
    elements can make displaying and exploring the model somewhat slow. If you +Gko[<  
    choose to make them visible, 3D textures are displayed in wireframe, even if the OJaU,vQ#  
    display mode is set to translucent. Wireframe rendering displays a bit faster and "-sz7}Mb  
    shows more of the technical details. ;a"Ukh  
    92 * LightTools Introductory Tutorial Uan ;}X7@  
    ececN{U/  
    HAPTER 5 Introduction to Backlight Design ;Xns9  
    C .xx9tP}Xy  
    1.Rotate and zoom the model to that you can see something like the illustration Nnw iH  
    below: v)06`G  
    . v*pVcBY>  
    2.To reveal the Property Zones: "rtmDNpL  
    a.Right-click in the Design View and select View Preferences to display this ~JJv 2  
    dialog box. B4C`3@a  
    b.On the Visibility tab, click the Property Zone check box to turn it on. cl:YN]BK  
    c.Click OK. l; 4F,iI  
    You will see the wire frame rendering of the spherical bumps on the fi1UUJ0 U;  
    bottom surface, and a solid color above it. The solid color is the 3D texture Y]PZ| G)  
    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 w*?JW  
    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 Z1&8 U=pax  
    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 x|Dj   
    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 &wJ"9pQ~6E  
    贴上你在cad中读出的数据就好了。半径的参数一样办理 <B)lV'!Bd  
    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