VEE DataTranslation DAC和波形生成

>日期：星期四，2002年7月11日10:43:01 +0100>来自：“James Atkin”>主题：vrf - 从8753分析仪绘制HPGL ...>有人控制了8753分析仪并迫使它采取HPGL绘图
> - 不是绘图仪，而是控制PC上的文件？>>我现在正在研究它，但如果有人成功完成了这项工作，我将不胜感激任何建议你可以提供给我。>>最好的问候
，>>詹姆斯>> - -------------------------------------------
------------> James Atkin BEng（荣誉）AMIEE>软件工程师> Mitec Telecom Ltd> The Arenson Center> Arenson Way> Dunstable>贝德福德郡> LU5 5UL> - -------
- - - - - - - - - - - - - - - - - - - - - - - - 我的建议
将使用Matlab脚本功能来生成您的情节（您可以更好地控制您的情节）。
从Matlab脚本窗口中，您可以使用Matlab的print命令将数据打印成各种格式的文件，包括HPGL。
Matlab脚本帮助窗口包含大量信息。
此外，您可以访问Mathworksweb网站（www.mathworks.com）并查看其支持页面。由于此功能似乎没有我认为应该使用的功能，我将在这里包含一个镍教程。
Skipit如果它是给你的旧帽子......一个简单的例子是给Matlab脚本窗口输入两个输入，称它们为X和Y（区分大小写）。
然后在Matlab脚本中输入：plot（X，Y），它生成X与Y的线图。为了控制颜色，你可以说是绘图（X，Y，'b'）;
％分号告诉Matlab不要回显命令％＆符号是Matlab注释characterNow，对于某些轴标签使用：xlabel（'This be X'）;
％注意Matlab ylabel的单引号（'那是Y'）;标题（'嘿，妈妈！我有一个情节！'）;最后，你可以控制一下情节特征，你可以用一个句柄来预先设置这些命令
，iep1 = plot（X，Y，'r'）;
％红线此时间集（p1，'linewidth'，2）;
％make line thickx1 = xlabel（'This be X'）;
％对xlabelset使用不同的句柄（x1，'fontsize'，14）;
％默认大小为12ptset（x1，'color'，'g'）;
％当然，你想要一个绿色的x labelNote，Matlab脚本框将运行然后消失。
要保持此图，以便您可以使用Matlab命令进行打印，在Matlab脚本块下绑定一个“OK”块。
然后，您可以访问Matlab绘图窗口顶部的文件菜单。
或者，您可以使用以下命令将print命令放在脚本中：print -dhpgl fooor您可以将文件名作为对Matlab脚本框的文本输入。
在这种情况下（使用名为fn的输入）命令：print（gcf，' - dhpgl'，fn）请注意，在可用的有用格式中有EPS，PS，JPG和PNG文件。
GIF已不再可用，因为Matlab使用ghostview将图表转换为各种格式，并且愚蠢地试图在GIF文件上强制执行他们的专利。
有一些程序可以将EPS和PS转换为PDF文件（例如Acrobat Distiller）.-- Danny ________________________________________________________________ |
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     以下为原文

  


> Date: Thu, 11 Jul 2002 10:43:01 +0100
> From: "James Atkin"
> Subject: vrf - Plotting HPGL from 8753 Analyser ...

> Has anyone controlled an 8753 Analyser and forced it to take an HPGL plot
> - not to a plotter, but to a file on the controlling PC ?
>
> I am looking into it at the moment, but if anyone has successfully
> done this, I would appreciate any advise you can offer me.
>
> Best Regards,
>
> James
>
> - -------------------------------------------------------
> James Atkin BEng(Hons) AMIEE
> Software Engineer
> Mitec Telecom Ltd
> The Arenson Centre
> Arenson Way
> Dunstable
> Bedfordshire
> LU5 5UL
> - -------------------------------------------------------

My suggestion would be to use the Matlab script feature to generate
your plot (you get much more control over your plot that way
anyway).  From inside the Matlab script window, you can then
use Matlab's print command to print the data to files in a variety
of formats, including HPGL.  The Matlab script help window has
a fair amount of information.  Also, you can go to the Mathworks
web site (www.mathworks.com) and look under their support page.

Since this feature seems less utilized than I believe it
should be, I'll include a nickel tutorial here.  Skip
it if it's old hat for you ...

A simple example would be to have two inputs to a Matlab script
window, call them X and Y (case sensitive).
In the Matlab script you then type:

plot(X,Y)

which generates a line plot of X versus Y. 

To control the color, you would say

plot(X,Y,'b');     % The semicolon tells Matlab not to echo the command
                   % The ampersand is the Matlab comment character

Now, for some axis labels use:

xlabel('This be X'); % Note single quotes for Matlab
ylabel('That be Y');
title('Hey, Mom! I got a plot!');

Finally, you can get some control over the plot characteristics, you
prepend each of these commands with a handle, i.e.

p1 = plot(X,Y,'r');  % Red line this time
set(p1,'linewidth',2);  % Make the line thick

x1 = xlabel('This be X'); % Use a different handle for the xlabel
set(x1,'fontsize',14);    % Default size is 12pt
set(x1,'color','g');      % Of course, you want a green x label

Note that the Matlab script box will run and then disappear.  To
hold onto this plot so you can use the Matlab commands to print,
tie an "OK" block under the Matlab script block. You can then access
the file menu at the top of the Matlab plot window.  Alternately,
you can put the print command right in the script with:

print -dhpgl foo

or you can have the filename be a text input to the
Matlab script box.  In that case (with an input named fn)
the command:

print( gcf, '-dhpgl', fn )

Note that among the useful formats available there are EPS, PS, JPG,
and PNG files.  GIF is no longer available because Matlab uses ghostview
to translate the plots into various formats and Compuserve foolishly
started trying to enforce their patent on GIF files.  There are programs
which convert EPS and PS to PDF files (e.g. Acrobat Distiller).


-- Danny

________________________________________________________________
| Danny Abramovitch            E-mail: danny@labs.agilent.com |
| Agilent Labs                     Voice:  (650) 485-3806         |
| 3500 Deer Creek Rd., MS: 25U-9  FAX:    (650) 485-4080         |
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您好比尔 - 感谢您的快速回复，建议和帮助。
我有几个较大的VXI HPcard笼子，并试图找到一个较小的替代品，用于治疗NIH的一些应用。
到目前为止，DataTrans的所有支持人员都是makeme，我可以回收单位。
但是 - 我想知道你是否可以建议一个卡或独立系统DAC / A到D供我购买，这样可以完成如示例触发程序所示的工作？
另外 - 众所周知，不要过早放弃一个问题，即使它看起来像是失败的原因......你不会有任何想法/建议如何使用thedatx.com DirectDigital I / O与Vee同步定时脉冲
你会吗？注意：在我购买设备之前，我确实仔细查看了规格表，但我认为他们已经把我打扫了。数据翻译现在已经改变了他们原来的在线规格表。从原始产品系列规格和功能列表引用它确实说明了
DT9804：我碰巧保存了html的原始文件http://www.datx.com/view.asp?id=56“2 BNC用于模拟输出DI（DAC）吞吐量100 kHz 100 kHz模拟输出2 2输出分辨率16
-bit 16位“DAC”吞吐量“部分现在总是空白......在9800 BNC的同一网页上！oops？所以它会......再一次感谢你的建议。注意ScottBill_Karnavas
@ transarc.com写道：斯科特，我担心你唯一真正的解决方案就是退回单位。当我看到在线规格和手册时，9800 se
很清楚地标记了单输出D / A值。
我会注意到，在查看在线页面时，列标题都是偏移的，但如果您查看图表超过一秒钟，那么很明显，然后您会看到D / A没有吞吐量条目。
简而言之，就是你买错了纸板。
数据转换确实使电路板能够满足您的需求，但不能使用USB，您必须使用PCI或PCMCIA。
我会提前警告我，我使用PCMCIA卡的经验是，他们要么安装工作很好，要么他们没有。我没有办法预测哪一个。许多小时都花费了试图让卡在特定笔记本上工作
它从来没有奏效。
在这种情况下，数据转换帮助没有帮助。
另一方面，在另一台笔记本电脑和台式机中，它们运行良好。
到目前为止，我对PCI卡的使用经验相对较少（我们多年来一直使用ISA，但是最近的Windows不支持它们），但它们看起来还不错。
lBill



     以下为原文

  Hello Bill-
 Thank you for your quick reply, suggestions and help. I haveseveral larger VXI HP
card cages and was trying to find a smaller subsitute for some of ourapplications here
at NIH.  All the support people at DataTrans up to now is makeme an offer that I can return
the unit. However- I was wondering if you could suggest a card or standalonesystem DAC /
A to D  for me to buy that would do the job as shown in sampledual trigger program?  Also- Being one known not to give up too early on a problem,even it may seem like
a lost cause... You wouldn't have any idea/suggestions how to use thedatx.com Direct
Digital I/O for synced timing pulses with Vee would you?Note: I did look carefully at the spec sheets before I bought
the unit, but I think they snookered me.
Data Translation has now changed their original online spec sheet.
Quoting from the original product line spec and feature
list it did state for the DT9804:
I happened to save original file of the html
     http://www.datx.com/view.asp?id=56   "  2 BNC for analog outputs DI (DAC)     Throughput  100 kHz 100 kHz     Analog Outputs   2 2     Output Resolution  16-bit 16-bit "The DAC "Throughput" section is now left totaly blank...
on the same web page for the 9800 BNC!
oops? And so it goes....Once again thank you for your suggestions.regards ScottBill_Karnavas@transarc.com wrote:  Scott,  I'm afraid your only real solution is to return the unit. When I look
  at the online specs and the manual, the 9800 series is prettyclearly
  labeled for single output D/A values.  I will note thatin looking at
  the online page, the column headings are all offset, butit is pretty
  obvious if you look at the chart for more than a second andthen you
  see that there is no throughput entry for D/A.  Theshort and sweet is
  that you bought the wrong board.  Data Translation does make boards that do what you want, butnot in
  USB, you will have to use PCI or PCMCIA.  I would warnyou up front that
  my experience with the PCMCIA cards is they either installand work
  great or they don't and I don't have a way to predict which. Many
  hours have been expended trying to get a card to work in1 particular
  notebook and it never worked.  Data Translation helpwas no help in
  this case.  On the other hand, in another laptop anda desktop they
  work great.  I've relatively little experience with the PCI cards so far(we did
  ISA for many years, but they are not supported under themore recent
  Windows) but they seem to be fine.  lBill