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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. t V( WhP  
    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  : .hu7JM+  
    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. =3c?W&:  
    多试几次就可以了.
    1Xo0(*O  
    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 <wk  
    The Backlight Utility was helpful to build the backlight system quickly. However, 3nG.ah  
    the bumps must be parameterized in order to get the desired output distribution. L&DjNu`!9  
    You can do this easily using the LightTools Properties dialog box. A!Cby!,  
    1.In the System Navigator, expand the items LightGuide, CubePrimitive_1, 'o6}g p)  
    BottomSurface, and Zones. Then, select Texture, as shown in the following pdRM%ug   
    figure. . 2$J-<O  
    2.Right-click and select Properties on the shortcut menu. /^AH/,p  
    3.Select the Geometry tab. k7Bh[ ..!  
    4.Select the arrow next to the Placement drop-down list, and select Bezier. Click F| eWHw?t  
    Apply. La )M  
    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 $U*eq [  
    parameters to match your design. Note that LightTools allows many other VKl,m ;&N  
    placement options, but you will use the Bezier placement option for this ^AH[]sE_  
    example. 4HGT gS  
    5.On both the X Placement tab and Y Placement tab, change the Number of s{@R|5  
    Bumps parameter to 300, as shown in the following figure. Click Apply after 8{jXSCP#  
    each change. ;&&<zWq3h  
    6.Click OK to close the dialog box. %`C*8fc&  
    Note that the number of bumps is 300 X 300, which results in about 90,000 UE'=9{o`  
    bumps on the surface (~ 5143 bumps/in2). These bumps are arranged in a xT"V9t[f  
    manner defined by the Bezier parameterization option. Please see Chapter 5 of RG{T\9]n  
    the LightTools Core Module User’s Guide for more information. With the YbU8 xq  
    current parameter values, the Bezier option varies the bump spacing along the (U.Go/A#wE  
    length of the light guide. The spacing in the orthogonal direction is constant. ?Z 2,?G  
    The X and Y refer to the local coordinate system of the surface. QFx3N%  
    LightTools Introductory Tutorial * 91 =$J(]KPv!?  
    zbxW U]<S?  
    HAPTER 5 Introduction to Backlight Design :|s8v2am  
    C D6Ad "|Z  
    Examining Surface Properties vW=-RTRH  
    Using the methods described in previous chapters, you may want to check your nZbI}kcm  
    model before you run a simulation. 8TFQ%jv  
    Click on various parts of the model in the 3D Design View. Or use the System euB1}M  
    Navigator to select different surfaces and view their Properties. BuV71/Vb{Q  
    1.In the System Navigator, click to open BottomSurface of the LightGuide, then J _O5^=BP  
    click Zones, and then click Texture. W^[FWFUTY  
    2.Select SphericalElement, and then right-click and select Properties from the 3:x(2 A  
    shortcut menu. The Shape tab shows you a graphical representation of the Z6zV 9hn  
    spherical bump shape that is the bottom of the light guide. J =^IS\m  
    You might be curious as to why you cannot see the 3D texture property zones you Q]K` p(  
    defined. They are invisible by default, because drawing thousands of texture O6hzOyNX@  
    elements can make displaying and exploring the model somewhat slow. If you L(TM& ps\-  
    choose to make them visible, 3D textures are displayed in wireframe, even if the :ZXd%  
    display mode is set to translucent. Wireframe rendering displays a bit faster and _p*9LsN$L  
    shows more of the technical details. v8ap"9b  
    92 * LightTools Introductory Tutorial F"] P|   
    o^@"eG$,  
    HAPTER 5 Introduction to Backlight Design T'5{p  
    C *&I>3;~%^}  
    1.Rotate and zoom the model to that you can see something like the illustration G]=z ![$  
    below: P$obID  
    . C#U(POA  
    2.To reveal the Property Zones: ",b:rgpRp  
    a.Right-click in the Design View and select View Preferences to display this '3b\d:hN  
    dialog box. ">bhxXeiN  
    b.On the Visibility tab, click the Property Zone check box to turn it on. ^&?,L@fW  
    c.Click OK. }/a%-07R  
    You will see the wire frame rendering of the spherical bumps on the 5.6tVr  
    bottom surface, and a solid color above it. The solid color is the 3D texture I`0-q?l  
    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 G WIsT\J  
    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 nONuw;K  
    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 arL>{mj  
    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 =?OU^ u`C  
    贴上你在cad中读出的数据就好了。半径的参数一样办理 :TQp,CEa  
    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