Using Hyperdraw on individual nodes

I have a sustained chord on a track that is 4 notes , and I want to fade each of the notes in at different times (to gradually build the chord).
Is there a way to hyperdraw these fades in on individual nodes when they are all recorded on one track? I seem to only be able to automate the entire track.

Hi,
Try separating each midi not to it's own track. That will solve it.
You are trying to fade in 4 different voices, so 4 different tracks is the way to go.They can all be assigned to the same audio instrument, in the arrange page. And then you can use hyperdraw to change each ones volume.
Cheers

Similar Messages

Use hyperdraw vs. automation for mixing?

hi,
have been working on a little 15 min. film score - my first one... all MIDI regions - used ESX24 on everything.
I have strings, and organ - and want those instruments to 'build' (crescendo) in parts...
do I use hyperdraw or automation for volume swells, etc?
I've never mixed before - this is what I'm doing - MIXING.
thanks...

First of all, congratulations on your first score!
I'd highly suggest using automation instead of hyperdraw.
You have a few options here too: you can not only automate individual tracks, but output objects (for, say, grouping all of your strings, guitars, whatever) and you can also automate the master output to do global fade-ins/fade-outs.
The great thing about automation is the ability to overwrite on-the-fly. It's easy to get used to and has the same editing capabilities as hyperdraw (nodes, lines, etc.).
That's my recommendation. Best of luck!

Using XPath to create nodes

Hi,
Obviously the main use of XPath is to query the state of an XML document... the equivalent to a "select" statement in SQL.
DOM4J has methods that allow you to use XPath as the equivalent to "insert" statements in SQL. You can specify an XPath like "/Hello/World/Value = 3" and apply this XPath to an XML document so that it creates something like this for you:
<Hello>
<World>
<Value>3</Value>
</World>
</Hello>
This is actually very useful for an investment banking application that I'm working on.
The problem with DOM4J is that it doesn't handle attributes or conditionals well. If you specify
/Hello[@name=2]/World = 3
I would expect
<Hello name=2>
<World>3</World>
</Hello>
to be produced. Instead, it produces
<Hello[@name=2]>
<World>3</World>
</Hello>
These are all simple examples. What I'm doing in real life is using XPath to insert nodes into a complicated XML document that already has a lot of structure. I'm only adding one or two elements to big documents.
Is there anything at all like this available in the JDK 1.5 release. I've had a good look, and XPath looks like it's only for queries. Is this correct?

I think this might do what you need...
// Create a dummy XML document
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
InputStream bais = new ByteArrayInputStream("<test><e1/></test>".getBytes());
Document doc = db.parse(bais);
// Define the XPath expression to "select" the parent element in the document
XPath xpath = XPathFactory.newInstance().newXPath();
XPathExpression xpathExpression = xpath.compile("/test/e1");
// Select the parent node (should probably chuck an ex if not present)
Node node = (Node) xpathExpression.evaluate(doc, XPathConstants.NODE);
// Create and append the child element
node.appendChild(doc.createElement("newElement"));
// Convert the Document into a string
ByteArrayOutputStream baos = new ByteArrayOutputStream();
DOMSource source = new DOMSource(doc);
StreamResult result = new StreamResult(baos);
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
transformer.transform(source, result);
// <?xml version="1.0" encoding="UTF-8"?><test><e1><newElement/></e1></test>
System.out.println(baos.toString());

Use of multiple property nodes for GUI manipulation

I have a LabVIEW 6.0.2 application where I'm using 14 different property nodes in the main loop. All of these have to do with GUI - hiding buttons when "X" isn't pressed, disabling and greying out controls if <0, popping one button on top of another depending on the mode of operation, etc, etc. While this works fine, the program is getting slow. I've noticed that using the old 2-D buttons works faster - things update faster and redraw quicker. However, more to the point, I once read that if you have to use a lot of Property Nodes like this, that you should bundle them into a sub-vi, thus replacing what would be Property Nodes with references. How does that make it faster?
Richard

Not sure if bundling them into a sub-vi by itself would make it faster. The nodes in the sub-vi would still have to access the user interface thread, and that's where the slow down comes from.
When I use any property node, I put it in a case structure and only write to it when needed. You just need to be able to detect when the value being written is changed from last loop iteration. It's useless to constantly rewrite the same value (doesn't have to be the "value" property) to the node.
Bundle them into a sub-vi and put the change detector, case structure and nodes in the sub-vi, this should help speed things up a bit. Assuming of course that the nodes are the slowdown. It may also help clean up the diagram a bit.
Ed
Ed Dickens - Certified LabVIEW Architect - DISTek Integration, Inc. - NI Certified Alliance Partner
Using the Abort button to stop your VI is like using a tree to stop your car. It works, but there may be consequences.

Call a special function in the dll using Call Library Function Node????

Dear all,
I am calling a special function in the dll using call library function node. There is a input parameter that it is a enum type in this function. I don't know how to deal this parameter for calling this function.Has anybody solved this problem?Please advise!
I am appreciated of you anytime.

Most of the times an enum is just a U8/U16/U32, internally so probably you can call it with just a U8/U16/U32 or something. For the correct value you have to look at the definition.
Ton
Free Code Capture Tool! Version 2.1.3 with comments, web-upload, back-save and snippets!
Nederlandse LabVIEW user groep www.lvug.nl
My LabVIEW Ideas
LabVIEW, programming like it should be!

Can we use OFFSETs in Hierarchy Node Variable in BEx ???

Hi all,
I have the need of using the OFFSETs in Hierarchy Node Variables. Can we use OFFSETs in Hierarchy Node Variable, PLEASE ???
Thanks in advance.
Regards,
Venkat.

I havent had such scenario - but I dont think you can do a offset on a hierarchy variable.

Patch 9004119 to use Oracle RAC One Node Utilities

Hi all,
I am installing Oracle Grid Infrastructure (11.2.0.3), I am following DOC ug-raconenode-2009-130760.pdf, about RAC One Node installation, as Oracle recomendation, and this DOC talk about install patch 9004119 to use Oracle RAC One Node Utilities (such as Omotion). If I am using 11.2.0.3, is it necessary install patch 9004119 ?
Thanks in advance.
Leonardo.

user10674190 wrote:
Hi all,
I am installing Oracle Grid Infrastructure (11.2.0.3), I am following DOC ug-raconenode-2009-130760.pdf, about RAC One Node installation, as Oracle recomendation, and this DOC talk about install patch 9004119 to use Oracle RAC One Node Utilities (such as Omotion). If I am using 11.2.0.3, is it necessary install patch 9004119 ?
Thanks in advance.
Leonardo.9004119:PATCH FOR RAC ONE NODE SCRIPTS can applied only on 11.2.0.1 , As you are in 11.2.0.3 so no need of it.

Using LV Class Property Nodes in In-place Element structure causes the code to halt

I have some code written in LV RT 2010 that uses property nodes from a LVOOP class that I created. I am using access the property node from inside an in-place element structure. When the code reaches the property node, LabVIEW stops running. (as if the abort button was pressed). I verified this behaviour using highlight execution. When I remove the in-place structure code runs fine.
Is this is know bug in LabVIEW? Is there a CAR to resolve this created for a future release?

Bob,
I tried to reproduce the behavior you're seeing by recreating the Trigger and Trigger List classes, but I have not been able to reproduce it. Please take a look at my version of the project in the attached zip file. Take a look at Test.vi, and feel free to modify and repost it to show me how to make the problem occur. I would like to file a CAR to make sure we get the problem fixed, but I will need to be able to reliably reproduce it first.
On a similar note, you can get much better performance out of the Process Triggers VI by preallocating the list array, instead of using build array in a loop. Take a look at Process Triggers2.vi in my project. You can run Benchmark.vi to see the performance difference between the two different approaches.
Chris M
Attachments:
triggerlist test.zip ‏165 KB

When I use Call Library Function Node in real time, is the DLL loaded once for all or load every time it is called?

When I use Call Library Function Node in real time, is the DLL loaded once for all or load every time when it is called?
I have a time critical real time application, in which I use a piece of DLL function developed by C++. It is OK? Could any senior developer assure me?
Thank you in advance.
Solved!
Go to Solution.

qing_shan61 wrote:
When I use Call Library Function Node in real time, is the DLL loaded once for all or load every time when it is called?
Once
qing_shan61 wrote:
I have a time critical real time application, in which I use a piece of DLL function developed by C++. It is OK?
OK
Be sure that all DLL calls are thread safe (do not perform calls in UI thread).
Also for real-time application you need real-time OS.
Andrey.

Use call library function node

I try to use call library function node to call a function in DLL and retrieve info stored in the C structure data type, can I do it? If yes, how ? Thanks.

Have a look at the article Configuring the Call Library Function Node

Using the Library function node?

I am using a Library Function Node to call a DLL function. It works perfectly on one computer and Labview 8 but on another computer with Labview 7.1 it does not work.
It crashes everytime it hits this node call.
The problem is that, even after I define the node call to a specific function in a DLL, when the VI is running it defaults to an old DLL and function that is no longer in the syetem. Why does it default to this old call and how can I break the default so it calls the proper function that is define in the node setup defintion.

Hi irfocus,
I am not sure why the the Call Library Function Node is defaulting to what you had created before, but one suggestion I have that may fix this problem is deleting the one that is already in place and creating a new one from scratch that references the DLL you actually want. This should keep the new configuration.
Eli S.
National Instruments
Applications Engineer

How to use Call library function node for a function in dll with VOID data type

Hi All,
I would like to ask for your kind help,
I am facing an issue with the call library node.
I have a C++ function(stdcall), which has void as data type
error code XXXX(hwnd, lID, getValue, *void data1, *void data2)
the data1 and data2 types are always changing depending upoin the value of "getValue".
Primarily i can use call library node multiple times and adapt each node according to the data types of data1 and data2, and extract the values and use in the code. Here is no issue. Real question is:
My question:
How can i just use one time call library node and make a case depending upon the "getvalue", which will control the data type of data1 and data2. Here i really looking for solutions.
My trials:
i used varaints as input to the call libray node for data1 and data2, and selected Parameters in call libraby node as " Adapt to type". here labview just crashed.
i really appreciate your feedbackand suggestions.
Thanks
Kutbuddin
Solved!
Go to Solution.
Attachments:
Clipboard02.jpg ‏103 KB

A variant is a very specific LabVIEW datatype (really a C++ type object internally) and trying to pass that to a function, which excepts a flat memory pointer there, for sure will crash very quickly.
As to endianess, yes Unflatten will be able to adjust for endianess, which in this case however is most likely exectly NOT what you want. So make sure that the you select native type for the endianess input on Unflatten from String. LabVIEW internally works with whatever is the native endianess, as will most likely your C++ DLL. The platform independent big endian format does only come into play when you receive data streams over some streaming interface like a network connection. Here it is desirable to use an endian format that is independent from the actual platform that generates and consumes the data stream. LabVIEWs default endianes is big endian here.
But as long as you pass data directly to native components like DLLs there is no difference in endianess between what LabVIEW uses and what those components use.
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

Panel Volumes show as folders, used to be individual top level hierarchy

In previous LR's I had the various volumes represented individually in the left panel the way "Xena" is below. Now it looks like this:
It used to have each volume represented the way "Xena" is above so that "A_Gmini500", "B_Gmini500", D_FotoAssignments" etc. were each represented in the same way as "Xena" as a separate box or button. I want them all to be the style that "Xena" is .
Is that possible? How do you change it?
Thanks very much for any clues.
Patrick MacBook Pro, 4gb RAM, 650gig HD, LR 3.3 Max OSX 10.6.6

Hmm. When I promoted the folder "Volumes" they disappeared like this:
Command z got them back, no worries. The folders inside volumes (the actual hard drives) do not have the option to control click> Promote Subfolders.
Any other clues? Thanks.

Using XSLT to empty nodes with the exception of specific node.

I have XSLT code working which will remove all the empty elements. My user wishes to exempt a specific node, <BypassDateEdits>. I can not figure out the correct syntax to do this.
Source XML is:
<?xml version="1.0" encoding="UTF-8"?>
<IMDSCDB xmlns="http://xml.dod.mil/log/maint/fs/main/4.0.0">
<EndItemTCTOReporting originator="EMOC">
<PartialJobDataDocumentationData/>
<JobControlNumber>
<EventId>052790038</EventId>
<WorkcenterEvent>001</WorkcenterEvent>
</JobControlNumber>
<End/>
<HomeEnterpriseLocationCode>7494</HomeEnterpriseLocationCode>
<CurrentEnterpriseLocationCode>7494</CurrentEnterpriseLocationCode>
<HostUnitDateAndTime>2006-02-23T19:29:37</HostUnitDateAndTime>
<TransactionOrdinalDate>06054</TransactionOrdinalDate>
<ComponentPosition>0</ComponentPosition>
<HowMalfunctionCode>802</HowMalfunctionCode>
<UnitsProduced>01</UnitsProduced>
<StartTime>0800</StartTime>
<StopDate>05200</StopDate>
<StopTime>0805</StopTime>
<CrewSize>6</CrewSize>
<CategoryOfLaborCode>1</CategoryOfLaborCode>
<ActivityIdentifierCode>02</ActivityIdentifierCode>
<CorrectedByIMDSCDBUserId>GU03CW</CorrectedByIMDSCDBUserId>
<CorrectiveActionNarrative>Test Test</CorrectiveActionNarrative>
<InspectedByIMDSCDBUserId>GU03CW</InspectedByIMDSCDBUserId>
<DocumentMoreTCTOThisJobControlNumber/>
<InspectionPassed>Y</InspectionPassed>
<BypassDateEdits/>
</EndItemTCTOReporting>
</IMDSCDB>
Desired output is:
<?xml version="1.0" encoding="UTF-8"?>
<IMDSCDB xmlns="http://xml.dod.mil/log/maint/fs/main/4.0.0">
<EndItemTCTOReporting originator="EMOC">
<PartialJobDataDocumentationData/>
<JobControlNumber>
<EventId>052790038</EventId>
<WorkcenterEvent>001</WorkcenterEvent>
</JobControlNumber>
<HomeEnterpriseLocationCode>7494</HomeEnterpriseLocationCode>
<CurrentEnterpriseLocationCode>7494</CurrentEnterpriseLocationCode>
<HostUnitDateAndTime>2006-02-23T19:29:37</HostUnitDateAndTime>
<TransactionOrdinalDate>06054</TransactionOrdinalDate>
<ComponentPosition>0</ComponentPosition>
<HowMalfunctionCode>802</HowMalfunctionCode>
<UnitsProduced>01</UnitsProduced>
<StartTime>0800</StartTime>
<StopDate>05200</StopDate>
<StopTime>0805</StopTime>
<CrewSize>6</CrewSize>
<CategoryOfLaborCode>1</CategoryOfLaborCode>
<ActivityIdentifierCode>02</ActivityIdentifierCode>
<CorrectedByIMDSCDBUserId>GU03CW</CorrectedByIMDSCDBUserId>
<CorrectiveActionNarrative>Test Test</CorrectiveActionNarrative>
<InspectedByIMDSCDBUserId>GU03CW</InspectedByIMDSCDBUserId>
<InspectionPassed>Y</InspectionPassed>
<BypassDateEdits/>
</EndItemTCTOReporting>
</IMDSCDB>
XSLT to remove all empty nodes is:
<?xml version="1.0"?>
<xsl:stylesheet
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0">
<xsl:template match="@* | node()">
<xsl:copy>
<xsl:apply-templates select="@* | node()"/>
</xsl:copy>
</xsl:template>
<xsl:template match="*[not(descendant::text()[normalize-space()])]" >
</xsl:template>
</xsl:stylesheet>
I believe I need to use the | operator to select the additional node set of just the <BypassDateEdits> node, but repeated attempt and research on the web has enabled me to find a solution.
Any assistance would be appreciated.
Bill

having gotten a big clue from tsuji, I finally achieved the correct XSLT.
This XSLT:
<?xml version="1.0"?>
<xsl:stylesheet
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0">
<xsl:template match="@* | node()">
<xsl:copy>
<xsl:apply-templates select="@* | node()"/>
</xsl:copy>
</xsl:template>
<xsl:template match="*[not(local-name()='BypassDateEdits') and namespace-uri()='http://xml.dod.mil/log/maint/fs/main/4.0.0'][not(descendant::text()[normalize-space()])]" >
</xsl:template>
</xsl:stylesheet>
Yields the desired results:
<?xml version="1.0" encoding="UTF-8"?><IMDSCDB xmlns="http://xml.dod.mil/log/maint/fs/main/4.0.0">
<EndItemTCTOReporting originator="EMOC">
<JobControlNumber>
<EventId>052790038</EventId>
<WorkcenterEvent>001</WorkcenterEvent>
</JobControlNumber>
<HomeEnterpriseLocationCode>7494</HomeEnterpriseLocationCode>
<CurrentEnterpriseLocationCode>7494</CurrentEnterpriseLocationCode>
<HostUnitDateAndTime>2006-02-23T19:29:37</HostUnitDateAndTime>
<TransactionOrdinalDate>06054</TransactionOrdinalDate>
<ComponentPosition>0</ComponentPosition>
<HowMalfunctionCode>802</HowMalfunctionCode>
<UnitsProduced>01</UnitsProduced>
<StartTime>0800</StartTime>
<StopDate>05200</StopDate>
<StopTime>0805</StopTime>
<CrewSize>6</CrewSize>
<CategoryOfLaborCode>1</CategoryOfLaborCode>
<ActivityIdentifierCode>02</ActivityIdentifierCode>
<CorrectedByIMDSCDBUserId>GU03CW</CorrectedByIMDSCDBUserId>
<CorrectiveActionNarrative>Test Test</CorrectiveActionNarrative>
<InspectedByIMDSCDBUserId>GU03CW</InspectedByIMDSCDBUserId>
<InspectionPassed>Y</InspectionPassed>
<BypassDateEdits/>
</EndItemTCTOReporting>
</IMDSCDB>
Thank you tsuji,
Bill

Problem of using "org.w3c.dom.Node" class

I try to use removeChild(child) method of "org.w3c.dom.Node" object. it don't work.
is it better to do child=null;

child=null does nothing to the dom object
removeChild works fine. You're just confused.
You would need more info to have any chance of fixing the problem.

Using Hyperdraw on individual nodes

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