Category: News
prev value in a stateflow chart
Stateflow documentation:
…To detect changes, the chart automatically double-buffers these values in local variables, as follows:
var_name_prev Value of data at the beginning of the last time step
var_name_start Value of data at the beginning of the current time step
Question: do I have read access to the buffered variables? I want to use them for calculations inside the stateflow chart.Stateflow documentation:
…To detect changes, the chart automatically double-buffers these values in local variables, as follows:
var_name_prev Value of data at the beginning of the last time step
var_name_start Value of data at the beginning of the current time step
Question: do I have read access to the buffered variables? I want to use them for calculations inside the stateflow chart. Stateflow documentation:
…To detect changes, the chart automatically double-buffers these values in local variables, as follows:
var_name_prev Value of data at the beginning of the last time step
var_name_start Value of data at the beginning of the current time step
Question: do I have read access to the buffered variables? I want to use them for calculations inside the stateflow chart. stateflow, double-buffer MATLAB Answers — New Questions
How SharePoint Online Restricted Content Discovery Works
Restricted Content Discovery Hides SharePoint Content from Copilot and Agents
The problem of poor permission management has surfaced from time to time in the history of SharePoint. The Office Delve app caused the last big upheaval within Microsoft 365 when it demonstrated an uncanny ability to surface sensitive documents to user view. Of course, Delve was never the problem. The issue is due to careless permission assignment, usually at site level.
When Microsoft launched Copilot in March 2023, it soon became apparent that Copilot is even better than Delve at finding and reusing documents, including files that an organization would prefer to remain restricted. Microsoft’s short-term answer was Restricted SharePoint Search, a horrible but expedient solution that works on the basis of an allow list for enterprise search which restricts users to only being able to search approved sites. Copilot always works as the signed in user, so the limits applied to users apply to Copilot to stop the AI using material stored in unapproved sites in its responses.
Restricted Content Discovery (RCD) is the latest solution to control unfettered access to confidential information stored in SharePoint Online sites. RCD is part of the SharePoint Advanced Management (SAM) suite. Microsoft is allowing tenants with Microsoft 365 Copilot licenses to use SAM via a code update that’s slowly deploying.
How Restricted Content Discovery Works
Restricted Content Delivery works by adding a flag to files stored in designated SharePoint Online sites. When an administrator marks a site for RCD through the SharePoint admin center or PowerShell. Figure 1 shows the “restrict content from Microsoft 365 Copilot” option in the admin center. When a site is selected for RCD, SharePoint sets a site-level property that causes index updates for every file in the site. Although RCD is applied at a site basis, SharePoint indexing happens at the file level, so a fan-out process must find and reindex every file in a site before RCD becomes effective for that site.
The time required to update the index for a site is highly dependent on the number of items in the site. Microsoft says that “for sites with more than 500,000 items, the Restricted Content Discovery update could take more than a week to fully process and reflect in search and Copilot.”
The indexing update does not remove items from the tenant index. If it did, items would be unavailable for eDiscovery searches, auto-label policies for retention and sensitivity labels, and other solutions. Instead, the flag set on files instructs Copilot to ignore those files when it consults the Graph to find matching content to help ground user prompts. The same approach is used by the Data Loss Prevention (DLP) policy to block Copilot access to files assigned specific sensitivity labels.
The block applies to anywhere Copilot for Microsoft 365 can use SharePoint Online files, including Copilot agents.
RCD Management with PowerShell
PowerShell can be used to manage RCD for sites. Make sure that you use a recent version of the SharePoint Online management module (I used Microsoft.Online.SharePoint.PowerShell version 16.0.25715.12000). For example, to enable RCD for a site, run the Set-SPOSite cmdlet to set the RestrictContentOrgWideSearch property to $true.
Set-SPOSite -Identity https://office365itpros.sharepoint.com/sites/rabilling -RestrictContentOrgWideSearch $true
To remove RCD from a site, set the value for RestrictContentOrgWideSearch to $false:
Set-SPOSite -Identity https://office365itpros.sharepoint.com/sites/rabilling -RestrictContentOrgWideSearch $false
Much the same reindexing process must occur before files in sites where RCD is disabled after being enabled before files become available to Copilot.
To generate a list of sites with RCD enabled, run the Start-SPORestrictedContentDiscoverabilityReport command to create a job on a queue for processing. The Get-SPORestrictedContentDiscoverabilityReport cmdlet reports the status for the job, which eventually reports “Completed.”
Start-SPORestrictedContentDiscoverabilityReport Generating the report will take some time. Are you sure you want to proceed? Continue with this operation? [Y] Yes [N] No [?] Help (default is "Y"): y RunspaceId : 1d839c7e-c0bf-4c11-be94-20179f2335e2 Id : 02aa91ea-5e12-43de-91a1-a58275d3b201 CreatedDateTimeInUtc : 03/31/2025 16:09:52 Status : NotStarted Get-SPORestrictedContentDiscoverabilityReport RunspaceId : 1d839c7e-c0bf-4c11-be94-20179f2335e2 Id : 02aa91ea-5e12-43de-91a1-a58275d3b201 CreatedDateTimeInUtc : 03/31/2025 17:03:52 Status : Completed
To download the RCD insights report, run the Get-SPORestrictedContentDiscoverabilityReport cmdlet and pass the GUID (id) for the report. This value is shown in the Get-SPORestrictedContentDiscoverabilityReport output:
Get-SPORestrictedContentDiscoverabilityReport –Action Download –ReportId 02aa91ea-5e12-43de-91a1-a58275d3b201 Report RestrictedContentDiscoverabilityReport_1743437651407.csv downloaded successfully
Microsoft documentation says that “the downloaded report is located on the path where the command was run.” This is incorrect. The file ends up in whatever folder the PowerShell session starts up in. In my case, I ran the job when positioned in c:temp and the file ended up in c:windowssystem32. The easy fix here is to use a PowerShell profile to define the folder where PowerShell starts up.
The contents of the “insights” report aren’t too exciting (Figure 2) and could be easily generated by looping through sites with PowerShell to find those with the flag set.
Restricted Content Discovery for All
It’s a reasonable guess that any Microsoft 365 tenant that’s interested in Copilot has some sensitive information stored in SharePoint Online sites. If you’re in this situation, you should consider RCD as the front-line method to prevent that information leaking out through Copilot. I’d also deploy the DLP policy to restrict Copilot access as a backup. Between the two lines of defence, it’s unlikely that inadvertent disclosure of confidential data will happen, and that’s a good thing.
Insight like this doesn’t come easily. You’ve got to know the technology and understand how to look behind the scenes. Benefit from the knowledge and experience of the Office 365 for IT Pros team by subscribing to the best eBook covering Office 365 and the wider Microsoft 365 ecosystem.
How to arrange elements in one array to match the position of elements in a second array?
If I have two arrays A and B as displayed below, how can I rearrange B such that a new boolean array Ba which corresponds to the values of array B can be resorted according to the values of array A instead?
For example, if I have:
A =
1 5 3 2 4 4 2 2 3 5
2 1 1 2 0 1 1 1 0 0
30 22 23 25 -1 30 18 25 -1 -1
B =
1 2 2 2 3 3 4 4 5 5
2 1 1 2 0 1 0 1 0 1
30 18 25 25 -1 23 -1 30 -1 22
Ba =
0 0 1 0 1 0 0 0 0 0
Note that array B is simply the sorted version of array A according to the first row in an ascended order. It is resorted twice according to the second row in an ascended order for the values in row 1 that equal one another (e.g., if there are multiples elements equal to 3 in row 1, then the array will sort by the second row instead, so if the second row has values 3 3 3 3 3; 2 6 3 9 1, it will then be sorted to 3 3 3 3 3; 1 2 3 6 9)
I only mentioned this in case reverse sorting might work easier than entirely rearranging the position of the array.
I want to rearrange array B and Ba such that it corresponds to the positioning of array A.
So the new arrays would look like this:
A =
1 5 3 2 4 4 2 2 3 5
2 1 1 2 0 1 1 1 0 0
30 22 23 25 -1 30 18 25 -1 -1
Aa =
0 0 0 0 0 0 0 1 1 0
The new array would essentially match A, and the array Aa is the same array Ba but now rearranged so that it follows the arrangement of A rather than B.
I am not entirely sure how to write the MATLAB code to accomplish this. All help is appreciated!If I have two arrays A and B as displayed below, how can I rearrange B such that a new boolean array Ba which corresponds to the values of array B can be resorted according to the values of array A instead?
For example, if I have:
A =
1 5 3 2 4 4 2 2 3 5
2 1 1 2 0 1 1 1 0 0
30 22 23 25 -1 30 18 25 -1 -1
B =
1 2 2 2 3 3 4 4 5 5
2 1 1 2 0 1 0 1 0 1
30 18 25 25 -1 23 -1 30 -1 22
Ba =
0 0 1 0 1 0 0 0 0 0
Note that array B is simply the sorted version of array A according to the first row in an ascended order. It is resorted twice according to the second row in an ascended order for the values in row 1 that equal one another (e.g., if there are multiples elements equal to 3 in row 1, then the array will sort by the second row instead, so if the second row has values 3 3 3 3 3; 2 6 3 9 1, it will then be sorted to 3 3 3 3 3; 1 2 3 6 9)
I only mentioned this in case reverse sorting might work easier than entirely rearranging the position of the array.
I want to rearrange array B and Ba such that it corresponds to the positioning of array A.
So the new arrays would look like this:
A =
1 5 3 2 4 4 2 2 3 5
2 1 1 2 0 1 1 1 0 0
30 22 23 25 -1 30 18 25 -1 -1
Aa =
0 0 0 0 0 0 0 1 1 0
The new array would essentially match A, and the array Aa is the same array Ba but now rearranged so that it follows the arrangement of A rather than B.
I am not entirely sure how to write the MATLAB code to accomplish this. All help is appreciated! If I have two arrays A and B as displayed below, how can I rearrange B such that a new boolean array Ba which corresponds to the values of array B can be resorted according to the values of array A instead?
For example, if I have:
A =
1 5 3 2 4 4 2 2 3 5
2 1 1 2 0 1 1 1 0 0
30 22 23 25 -1 30 18 25 -1 -1
B =
1 2 2 2 3 3 4 4 5 5
2 1 1 2 0 1 0 1 0 1
30 18 25 25 -1 23 -1 30 -1 22
Ba =
0 0 1 0 1 0 0 0 0 0
Note that array B is simply the sorted version of array A according to the first row in an ascended order. It is resorted twice according to the second row in an ascended order for the values in row 1 that equal one another (e.g., if there are multiples elements equal to 3 in row 1, then the array will sort by the second row instead, so if the second row has values 3 3 3 3 3; 2 6 3 9 1, it will then be sorted to 3 3 3 3 3; 1 2 3 6 9)
I only mentioned this in case reverse sorting might work easier than entirely rearranging the position of the array.
I want to rearrange array B and Ba such that it corresponds to the positioning of array A.
So the new arrays would look like this:
A =
1 5 3 2 4 4 2 2 3 5
2 1 1 2 0 1 1 1 0 0
30 22 23 25 -1 30 18 25 -1 -1
Aa =
0 0 0 0 0 0 0 1 1 0
The new array would essentially match A, and the array Aa is the same array Ba but now rearranged so that it follows the arrangement of A rather than B.
I am not entirely sure how to write the MATLAB code to accomplish this. All help is appreciated! array, sort MATLAB Answers — New Questions
STL to solid 3d matrix
Is there a way to import STL and save it as 3D matrix and stlil maintain its size? Patch is a good function to import stl, I need voxelisation of the mesh so I can slice the 2D data out of it.
This is a good work by Adam , but it does not maintain the size and ratio:
https://uk.mathworks.com/matlabcentral/fileexchange/27390-mesh-voxelisation
RegardsIs there a way to import STL and save it as 3D matrix and stlil maintain its size? Patch is a good function to import stl, I need voxelisation of the mesh so I can slice the 2D data out of it.
This is a good work by Adam , but it does not maintain the size and ratio:
https://uk.mathworks.com/matlabcentral/fileexchange/27390-mesh-voxelisation
Regards Is there a way to import STL and save it as 3D matrix and stlil maintain its size? Patch is a good function to import stl, I need voxelisation of the mesh so I can slice the 2D data out of it.
This is a good work by Adam , but it does not maintain the size and ratio:
https://uk.mathworks.com/matlabcentral/fileexchange/27390-mesh-voxelisation
Regards stl, patch, voxelisation MATLAB Answers — New Questions
How to get the values of x axis only visible at the bottom subplots?
Hi,
I have a series of subplots (5×4). Every subplot has the same x axis and the same limits. At the moment, I have the values of x axis visible in every subplot. I would like to have the values only visible at the bottom subplots, so that the figure would be simpler. I already edited the code so that the x label is only visible at the bottom subplots. But how do I do the same to the x axis values?
I tried turning of the ‘XTick’
set(gca,’XTick’,[]);
This worked, however, now the grid also turned off. How can I get the values to be only at the bottom subplots, and the grid on?
The same goes for y axis. I only want the values of the y axis to be visible at the left subplots.
Thank you in advance for any answers!Hi,
I have a series of subplots (5×4). Every subplot has the same x axis and the same limits. At the moment, I have the values of x axis visible in every subplot. I would like to have the values only visible at the bottom subplots, so that the figure would be simpler. I already edited the code so that the x label is only visible at the bottom subplots. But how do I do the same to the x axis values?
I tried turning of the ‘XTick’
set(gca,’XTick’,[]);
This worked, however, now the grid also turned off. How can I get the values to be only at the bottom subplots, and the grid on?
The same goes for y axis. I only want the values of the y axis to be visible at the left subplots.
Thank you in advance for any answers! Hi,
I have a series of subplots (5×4). Every subplot has the same x axis and the same limits. At the moment, I have the values of x axis visible in every subplot. I would like to have the values only visible at the bottom subplots, so that the figure would be simpler. I already edited the code so that the x label is only visible at the bottom subplots. But how do I do the same to the x axis values?
I tried turning of the ‘XTick’
set(gca,’XTick’,[]);
This worked, however, now the grid also turned off. How can I get the values to be only at the bottom subplots, and the grid on?
The same goes for y axis. I only want the values of the y axis to be visible at the left subplots.
Thank you in advance for any answers! subplot, axes, xlabel, xvalue MATLAB Answers — New Questions
Are dlnetworks supposed to be allowed to have output layers?
Are dlnetworks allowed to have output layers? In the following code, I manage to create one, so the answer would seem to be yes.
layers= [imageInputLayer([1,1,1]) , reluLayer(Name=’relu’) ] ;
dln = replaceLayer( dlnetwork(layers) ,’relu’, regressionLayer);
class(dln)
dln.Layers
However, when I try to create this more directly, an error is raised:
dln = dlnetwork( [imageInputLayer([1,1,1]) , regressionLayer] )
Have I found an unintended backdoor?Are dlnetworks allowed to have output layers? In the following code, I manage to create one, so the answer would seem to be yes.
layers= [imageInputLayer([1,1,1]) , reluLayer(Name=’relu’) ] ;
dln = replaceLayer( dlnetwork(layers) ,’relu’, regressionLayer);
class(dln)
dln.Layers
However, when I try to create this more directly, an error is raised:
dln = dlnetwork( [imageInputLayer([1,1,1]) , regressionLayer] )
Have I found an unintended backdoor? Are dlnetworks allowed to have output layers? In the following code, I manage to create one, so the answer would seem to be yes.
layers= [imageInputLayer([1,1,1]) , reluLayer(Name=’relu’) ] ;
dln = replaceLayer( dlnetwork(layers) ,’relu’, regressionLayer);
class(dln)
dln.Layers
However, when I try to create this more directly, an error is raised:
dln = dlnetwork( [imageInputLayer([1,1,1]) , regressionLayer] )
Have I found an unintended backdoor? dlnetwork, output layer MATLAB Answers — New Questions
Inserting Table from Matlab into Powerpoint slide
Does anyone know how to insert a table from MATLAB to a powerpoint slide?
For example:
header = cell{1,3};
header = {‘Header1’ ‘Header2’ ‘Header 3’};
data= [1, 2, 3;
1, 4, 9;];
How would one output this to powerpoint? I’ve seen the Matlab figures to powerpoint copying and pasting, but not sure how to insert a table.
Thanks for your help!Does anyone know how to insert a table from MATLAB to a powerpoint slide?
For example:
header = cell{1,3};
header = {‘Header1’ ‘Header2’ ‘Header 3’};
data= [1, 2, 3;
1, 4, 9;];
How would one output this to powerpoint? I’ve seen the Matlab figures to powerpoint copying and pasting, but not sure how to insert a table.
Thanks for your help! Does anyone know how to insert a table from MATLAB to a powerpoint slide?
For example:
header = cell{1,3};
header = {‘Header1’ ‘Header2’ ‘Header 3’};
data= [1, 2, 3;
1, 4, 9;];
How would one output this to powerpoint? I’ve seen the Matlab figures to powerpoint copying and pasting, but not sure how to insert a table.
Thanks for your help! powerpoint, table, inserting MATLAB Answers — New Questions
Office 365 for IT Pros April 2025 Update
Monthly Update #118 for the Office 365 for IT Pros eBook
The Office 365 for IT Pros writing team is delighted to announce the availability of the April 2025 update (monthly update #118) for the Office 365 for IT Pros eBook. Readers can check the update number of the book on the inside front cover. Details of the update are available in our change log.
The Automating Microsoft 365 with PowerShell eBook is updated for April 2025 too. Its current version is 10.1. The new PDF and EPUB files are available to Office 365 for IT Pros subscribers and those who bought a separate subscription for the PowerShell book.
Subscribers can download the updated files from their Gumroad account or by using the download link in the receipt they received by email following their original purchase. The link in the receipt always accesses the latest files. See our FAQ for more information about how to download updates.
Sending Messages to the Wrong Place
There’s been quite a furore about messages being delivered to the wrong person recently. Leaving the politics aside, the situation is a reminder that the same thing could happen in a Microsoft 365 tenant if a user created an Outlook contact group and included someone who shouldn’t receive sensitive or confidential information in the group members. It’s easy to do because Outlook (Figure 1) doesn’t limit membership to a particular type of recipient. The membership of a personal contact group can include existing contacts, people from the address list (GAL), or new contacts.
Administrators have no idea if people use Outlook contact groups because these objects are stored in user mailboxes. When users add contact groups to messages, Outlook expands the memberships to create individual recipients. Exchange Online only sees the individual recipients.
If a message containing sensitive information are delivered to incorrect recipients, senders can attempt to recall the message. However, the recall feature doesn’t work for external recipients. Once a message leaves the tenant, all control is lost.
Protecting Content
Fortunately, Microsoft 365 tenants licensed for Purview information protection can apply sensitivity labels to email and attachments to prevent unauthorized recipients from reading message content. Chapter 19 of Office 365 for IT Pros includes extensive coverage of the rights-management-based encryption used with sensitivity labels. Essentially, if a recipient has not been granted the right to access protected content, they can’t see it. Protection extends to message attachments too.
It’s always embarrassing when confidential material gets into the wrong hands either deliberately or through a user mistake. Sensitivity labels are integrated into all Outlook and Office applications, but their implementation requires substantial planning and deployment effort, including user education. For instance, will label policies require users to apply a sensitivity label to all email or will the focus of protection be on files (messages with protected attachments inherit protection from the attachments)? There’s lots more to think about, and we hope that chapter 19 helps.
On to Update #119
Only two monthly updates remain for Office 365 for IT Pros (2025 edition). We plan to publish #119 for May 2025 and #120 for June 2025 and then move to the 2026 edition with a tentative publication date of July 1, 2025.
Microsoft is currently pouring massive datacenter and software engineering investment into its AI initiatives. Copilot and agents are the obvious signs of that investment within Microsoft 365. Although costly licenses are required to integrate Microsoft 365 data with Copilot, we’re already seeing the introduction of Pay-as-you-go agents as an alternative payment mechanism. It’s easy to imagine how Microsoft might use similar methods to encourage tenants to adopt AI features within applications more broadly. One thing’s for sure: plenty of change remains to play out within Microsoft 365. Our mission to track, analyze, and document how to manage Microsoft 365 tenants will continue.
IK solver algorithm fminconsqp performance (2025a prerelease)
Hello everyone,
I’ve been testing 2025a prerelease matlab version’s new IK solver algorithm fminconsqp with default parameters, but BFGS with random restart enabled (while keeping other parameters default) still seems more powerful.
Am I missing something? I can’t quite figure out the advantage of this new solver.
Thanks in advance!Hello everyone,
I’ve been testing 2025a prerelease matlab version’s new IK solver algorithm fminconsqp with default parameters, but BFGS with random restart enabled (while keeping other parameters default) still seems more powerful.
Am I missing something? I can’t quite figure out the advantage of this new solver.
Thanks in advance! Hello everyone,
I’ve been testing 2025a prerelease matlab version’s new IK solver algorithm fminconsqp with default parameters, but BFGS with random restart enabled (while keeping other parameters default) still seems more powerful.
Am I missing something? I can’t quite figure out the advantage of this new solver.
Thanks in advance! matlab MATLAB Answers — New Questions
How to ensure that all values are not equal when using the ecef2enu function
I’m doing coordinate system transformation using the ecef2enu function. But for some reason, all three E, N, and U values are the same. I wonder why. How can I modify it to get the exact value?
Isn’t it normal for the 1, 2, 3 matrices to have different values? Is there something wrong with my code?
currTime = gnss.SensorModel.InitialTime;
setup(scene)
wgs84 = wgs84Ellipsoid(‘meter’);
while scene.IsRunning
[~,~,p,satPos,status] = gnss.read ();
allSatPos = gnssconstellation(currTime); % ecef
currTime = currTime + seconds(1/scene.UpdateRate);
[~,trueRecPos] = plat.read; % lla
trueRecPos_ecef = lla2ecef(trueRecPos); % uav ecef
[az,el] = lookangles(trueRecPos,satPos,gnss.SensorModel.MaskAngle);
nsat = length(satPos(:,1));
enu_sat = zeros(nsat,3);
for k = 1:1:nsat
enu_sat(k,:) = ecef2enu(satPos(k,1),satPos(k,2),satPos(k,3),trueRecPos(1),trueRecPos(2),trueRecPos(3),wgs84);
end
temp=1;
unit_sat = normalize(enu_sat,’norm’,1);
target_z = 500;
scale_factors = target_z ./ unit_sat(:,3);
unit_sat_scaled = unit_sat .* scale_factors;
endI’m doing coordinate system transformation using the ecef2enu function. But for some reason, all three E, N, and U values are the same. I wonder why. How can I modify it to get the exact value?
Isn’t it normal for the 1, 2, 3 matrices to have different values? Is there something wrong with my code?
currTime = gnss.SensorModel.InitialTime;
setup(scene)
wgs84 = wgs84Ellipsoid(‘meter’);
while scene.IsRunning
[~,~,p,satPos,status] = gnss.read ();
allSatPos = gnssconstellation(currTime); % ecef
currTime = currTime + seconds(1/scene.UpdateRate);
[~,trueRecPos] = plat.read; % lla
trueRecPos_ecef = lla2ecef(trueRecPos); % uav ecef
[az,el] = lookangles(trueRecPos,satPos,gnss.SensorModel.MaskAngle);
nsat = length(satPos(:,1));
enu_sat = zeros(nsat,3);
for k = 1:1:nsat
enu_sat(k,:) = ecef2enu(satPos(k,1),satPos(k,2),satPos(k,3),trueRecPos(1),trueRecPos(2),trueRecPos(3),wgs84);
end
temp=1;
unit_sat = normalize(enu_sat,’norm’,1);
target_z = 500;
scale_factors = target_z ./ unit_sat(:,3);
unit_sat_scaled = unit_sat .* scale_factors;
end I’m doing coordinate system transformation using the ecef2enu function. But for some reason, all three E, N, and U values are the same. I wonder why. How can I modify it to get the exact value?
Isn’t it normal for the 1, 2, 3 matrices to have different values? Is there something wrong with my code?
currTime = gnss.SensorModel.InitialTime;
setup(scene)
wgs84 = wgs84Ellipsoid(‘meter’);
while scene.IsRunning
[~,~,p,satPos,status] = gnss.read ();
allSatPos = gnssconstellation(currTime); % ecef
currTime = currTime + seconds(1/scene.UpdateRate);
[~,trueRecPos] = plat.read; % lla
trueRecPos_ecef = lla2ecef(trueRecPos); % uav ecef
[az,el] = lookangles(trueRecPos,satPos,gnss.SensorModel.MaskAngle);
nsat = length(satPos(:,1));
enu_sat = zeros(nsat,3);
for k = 1:1:nsat
enu_sat(k,:) = ecef2enu(satPos(k,1),satPos(k,2),satPos(k,3),trueRecPos(1),trueRecPos(2),trueRecPos(3),wgs84);
end
temp=1;
unit_sat = normalize(enu_sat,’norm’,1);
target_z = 500;
scale_factors = target_z ./ unit_sat(:,3);
unit_sat_scaled = unit_sat .* scale_factors;
end optimization, gnss, ecef2enu, enu, ecef MATLAB Answers — New Questions
Why is my Simulink Desktop Real-Time simulation very slow or halts in Windows when Hyper-V is enabled?
I am trying to use Simulink Desktop Real-Time (SLDRT) on my Windows machine, but when I launch the example model "sldrtex_vdp.slx", it runs very slow, halts, or may even cause a blue-screen.
The following warning message may be prompted out:
Warning: The "Real-Time Synchronization" block has timed out while
trying to synchronize to real-time kernel.
The following warning messages may be shown in Diagnostic Viewer:
Model sldrtex_vdp loaded
A disconnect message was sent to the target 10 seconds ago. Waiting for response.. [6 similar]
Never received disconnect response from target. Disconnecting…
Model sldrtex_vdp unloaded
Additionally, I may see the following error message during the kernel installation (since R2019b) or when trying to run a real-time simulation (since R2020b):
The Hyper-V hypervisor has been detected. The Simulink Desktop Real-Time kernel
cannot run in the presence of the hypervisor. Please disable the Hyper-V operating
system component before attempting to use Simulink Desktop Real-Time.I am trying to use Simulink Desktop Real-Time (SLDRT) on my Windows machine, but when I launch the example model "sldrtex_vdp.slx", it runs very slow, halts, or may even cause a blue-screen.
The following warning message may be prompted out:
Warning: The "Real-Time Synchronization" block has timed out while
trying to synchronize to real-time kernel.
The following warning messages may be shown in Diagnostic Viewer:
Model sldrtex_vdp loaded
A disconnect message was sent to the target 10 seconds ago. Waiting for response.. [6 similar]
Never received disconnect response from target. Disconnecting…
Model sldrtex_vdp unloaded
Additionally, I may see the following error message during the kernel installation (since R2019b) or when trying to run a real-time simulation (since R2020b):
The Hyper-V hypervisor has been detected. The Simulink Desktop Real-Time kernel
cannot run in the presence of the hypervisor. Please disable the Hyper-V operating
system component before attempting to use Simulink Desktop Real-Time. I am trying to use Simulink Desktop Real-Time (SLDRT) on my Windows machine, but when I launch the example model "sldrtex_vdp.slx", it runs very slow, halts, or may even cause a blue-screen.
The following warning message may be prompted out:
Warning: The "Real-Time Synchronization" block has timed out while
trying to synchronize to real-time kernel.
The following warning messages may be shown in Diagnostic Viewer:
Model sldrtex_vdp loaded
A disconnect message was sent to the target 10 seconds ago. Waiting for response.. [6 similar]
Never received disconnect response from target. Disconnecting…
Model sldrtex_vdp unloaded
Additionally, I may see the following error message during the kernel installation (since R2019b) or when trying to run a real-time simulation (since R2020b):
The Hyper-V hypervisor has been detected. The Simulink Desktop Real-Time kernel
cannot run in the presence of the hypervisor. Please disable the Hyper-V operating
system component before attempting to use Simulink Desktop Real-Time. slow, timeout, sldrt, bluescreen, bsod, hyper-v, hypervisor MATLAB Answers — New Questions
Abnormally high reaction force in Simscape Multibody
Hello,
I have a simscape model of a hexapod robot which I am trying to make traverse over a small obstacle. When walking on the regular floor object, the robot is fine. However, as soon as the first leg makes contact with the obstacle, it experiences an abnormally high normal reaction force, causing the whole robot to get sent flying into the air. I am not sure why this is happening. The settings for the spatial contact forces between the floor object and the obstacle object are identical. Here is a video from the mechanics explorer (apologies for the speed, it may have to be watched on 0.25x playback).
I have tried everything I can think of – tweaking stiffness and damping parameters (K_obs and C_obs) and trying different solver settings/tolerances. Drastically reducing the stiffness and damping coefficients does help, but results in the legs of the robot sinking several millimetres through the obstacle.
I have attached a zip file containing the full project. To run the model, open and run HexMaster.m. Then, run adeept.slx. Any help would be massively appreciated.Hello,
I have a simscape model of a hexapod robot which I am trying to make traverse over a small obstacle. When walking on the regular floor object, the robot is fine. However, as soon as the first leg makes contact with the obstacle, it experiences an abnormally high normal reaction force, causing the whole robot to get sent flying into the air. I am not sure why this is happening. The settings for the spatial contact forces between the floor object and the obstacle object are identical. Here is a video from the mechanics explorer (apologies for the speed, it may have to be watched on 0.25x playback).
I have tried everything I can think of – tweaking stiffness and damping parameters (K_obs and C_obs) and trying different solver settings/tolerances. Drastically reducing the stiffness and damping coefficients does help, but results in the legs of the robot sinking several millimetres through the obstacle.
I have attached a zip file containing the full project. To run the model, open and run HexMaster.m. Then, run adeept.slx. Any help would be massively appreciated. Hello,
I have a simscape model of a hexapod robot which I am trying to make traverse over a small obstacle. When walking on the regular floor object, the robot is fine. However, as soon as the first leg makes contact with the obstacle, it experiences an abnormally high normal reaction force, causing the whole robot to get sent flying into the air. I am not sure why this is happening. The settings for the spatial contact forces between the floor object and the obstacle object are identical. Here is a video from the mechanics explorer (apologies for the speed, it may have to be watched on 0.25x playback).
I have tried everything I can think of – tweaking stiffness and damping parameters (K_obs and C_obs) and trying different solver settings/tolerances. Drastically reducing the stiffness and damping coefficients does help, but results in the legs of the robot sinking several millimetres through the obstacle.
I have attached a zip file containing the full project. To run the model, open and run HexMaster.m. Then, run adeept.slx. Any help would be massively appreciated. simscape, multibody MATLAB Answers — New Questions
regarding to your support
I hope you well receive this messege as well.
I am happy jion for your site.
I start to do project on UAV
kindy could you please send me you tube, documets regarding to quadrotror mathlab simulink?
Please help meI hope you well receive this messege as well.
I am happy jion for your site.
I start to do project on UAV
kindy could you please send me you tube, documets regarding to quadrotror mathlab simulink?
Please help me I hope you well receive this messege as well.
I am happy jion for your site.
I start to do project on UAV
kindy could you please send me you tube, documets regarding to quadrotror mathlab simulink?
Please help me uav MATLAB Answers — New Questions
Is it possible to orient the legend’s symbols vertically instead of horizontally?
Is it possible to orient the legend’s symbols vertically instead of horizontally?
In the following example, the red and blue lines in the legend are horizontally oriented, but I would like them to be vertically oriented within the legend:
x = linspace(0, 10, 100);
y1 = sin(x);
y2 = cos(x);
plot(x, y1, ‘red’, x, y2, ‘blue’);
hold on;
h1 = plot(nan, nan, ‘red’, ‘LineWidth’, 2);
h2 = plot(nan, nan, ‘blue’, ‘LineWidth’, 2);
legend([h1, h2], ‘sin(x)’, ‘cos(x)’);Is it possible to orient the legend’s symbols vertically instead of horizontally?
In the following example, the red and blue lines in the legend are horizontally oriented, but I would like them to be vertically oriented within the legend:
x = linspace(0, 10, 100);
y1 = sin(x);
y2 = cos(x);
plot(x, y1, ‘red’, x, y2, ‘blue’);
hold on;
h1 = plot(nan, nan, ‘red’, ‘LineWidth’, 2);
h2 = plot(nan, nan, ‘blue’, ‘LineWidth’, 2);
legend([h1, h2], ‘sin(x)’, ‘cos(x)’); Is it possible to orient the legend’s symbols vertically instead of horizontally?
In the following example, the red and blue lines in the legend are horizontally oriented, but I would like them to be vertically oriented within the legend:
x = linspace(0, 10, 100);
y1 = sin(x);
y2 = cos(x);
plot(x, y1, ‘red’, x, y2, ‘blue’);
hold on;
h1 = plot(nan, nan, ‘red’, ‘LineWidth’, 2);
h2 = plot(nan, nan, ‘blue’, ‘LineWidth’, 2);
legend([h1, h2], ‘sin(x)’, ‘cos(x)’); legend, symbols, lines, plot MATLAB Answers — New Questions
How to Find Who Assigned Retention Labels to SharePoint Files
Use Audit Events to Track Down Retention Label Assignments
A reader of my article about how to write a PowerShell script to report files and folders in a SharePoint Online document library observed that while the report details the retention labels assigned to items, it doesn’t say who assigned the labels. This is absolutely true, and it’s because SharePoint Online doesn’t note details of the last retention label assignment (date, user, etc.) in the information available through the Files Graph API. If the data isn’t available, it cannot be included in a report.
But retention label assignment is an auditable action. Details of assignments are captured by SharePoint Online and ingested into the unified audit log roughly 30 minutes after someone assigns a retention label to an item.
Searching for Retention Label Assignments
It’s easy to search the audit log for the logged events (the “TagApplied” operation is used here; the ComplianceSettingChanged could also be used) and report that information. Here’s some simple code to find the relevant audit events:
[array]$Records = Search-UnifiedAuditLog -Operations TagApplied -StartDate $StartDate -EndDate $EndDate -Formatted -SessionCommand ReturnLargeSet -ResultSize 5000
If ($Records.Count -eq 0) {
Write-Output "No TagApplied events found in the last 30 days"
Break
} Else {
# Get rid of duplicates
$Records = $Records | Sort-Object Identity -Unique
Write-Output ("Processing {0} retention label assignment events..." -f $Records.Count)
}
If the search is likely to return more than 5,000 events, it’s probably best to use the Graph AuditLogQuery API to perform an asynchronous search. Background searches can find hundreds of thousands of audit records if necessary.
The search finds assignment events when labels are applied manually by a user or automatically by an auto-label policy. In many careful scans of the audit log, I cannot find any events captured when files are uploaded to a document library and receive the default retention label configured for that library. The documentation says that events are triggered when retention labels are applied manually or automatically to a document but perhaps default retention labels are omitted.
Parsing the Audit Records
After finding relevant events, the next step is to remove any duplicates and sort the set by date.
$Records = $Records | Sort-Object Identity -Unique
$Records = $Records | Sort-Object {$_.CreationDate -as [datetime]} -Descending
The code then loops through the set to extract details and create a report. The name of the retention label and details of the file such as its name and host site and folder are in the AuditData structure, which must be converted from JSON to a PowerShell object to allow easy extraction of the properties.
The next issue is to find out who assigned the retention label. This is simple when users assign retention labels manually because the audit record stores the user principal name in the UserIds property. It’s less straightforward when auto-label policies are involved because the UserIds property contain the GUID of the retention policy rule that caused the label assignment to occur.
To translate the rule GUID back to a policy name, we need to find the GUID of the policy (because that’s how the rule links to its policy) and then extract the policy name. The code to resolve the rule GUID is not difficult, but it depends on being able to lookup the registered compliance policy rules and policies in the tenant. I use hash tables for this purpose and populate the tables with the Get-RetentionCompliancePolicy and Get-RetentionComplianceRule cmdlets.
Two GUIDs couldn’t be resolved by this method. I assume these represent background processes run by SharePoint Online to apply policies, so I declared the GUIDs in an array:
[array]$SharePointAutoLabelId = 'eba15bfd-c28e-4433-a20e-0278888c5825', 'a405a596-28e7-43c6-8ac7-76e0fc13ee0f'
If the GUIDs are found in audit records, the code reports them as “SharePoint Auto Label process.” One of the two GUIDs (‘eba15bfd-c28e-4433-a20e-0278888c5825’) is involved with the application of retention labels for document versions for cloudy attachments captured by a special policy, so I think it’s reasonable to assume that the other GUID represents some other form of background processing. Figure 1 shows some sample output.
You can download the full script from the Office 365 for IT Pros GitHub repository.
Chasing Default Retention Label Assignments
Although using the audit log to answer the question about who assigned retention labels to files is reasonably accurate, I’m unhappy to find that default retention label assignments aren’t audited. Or at least, I can’t find the right audit event to report. I’ve asked Microsoft about the issue and hopefully they can clarify what’s going on.
Need some assistance to write and manage PowerShell scripts for Microsoft 365? Get a copy of the Automating Microsoft 365 with PowerShell eBook, available standalone or as part of the Office 365 for IT Pros eBook bundle.
Why do I receive the error: Unrecognized function or variable ‘V_o’?
Please guide me to solve the following error:
Warning: The specified buffer for ‘Convertidor_Boost/Mean/Model/Transport Delay’ was too small. During simulation, the buffer size was
temporarily increased to 106496. In order to generate code, you need to update the buffer size parameter
Unrecognized function or variable ‘V_o’.
Error in Run_Convertidor_Boost (line 62)
plot(tt1,V_o)
Thank you so much,
Edwin Rodríguez JiménezPlease guide me to solve the following error:
Warning: The specified buffer for ‘Convertidor_Boost/Mean/Model/Transport Delay’ was too small. During simulation, the buffer size was
temporarily increased to 106496. In order to generate code, you need to update the buffer size parameter
Unrecognized function or variable ‘V_o’.
Error in Run_Convertidor_Boost (line 62)
plot(tt1,V_o)
Thank you so much,
Edwin Rodríguez Jiménez Please guide me to solve the following error:
Warning: The specified buffer for ‘Convertidor_Boost/Mean/Model/Transport Delay’ was too small. During simulation, the buffer size was
temporarily increased to 106496. In order to generate code, you need to update the buffer size parameter
Unrecognized function or variable ‘V_o’.
Error in Run_Convertidor_Boost (line 62)
plot(tt1,V_o)
Thank you so much,
Edwin Rodríguez Jiménez ftt, matlab, simulink MATLAB Answers — New Questions
Managing preferences does not work for add ons explorer issue
I was trying to get the Field Trip Toolbox as an add on, and https://in.mathworks.com/matlabcentral/answers/60662-how-do-i-install-fieldtrip-toolbox tells me that installing it from https://www.fieldtriptoolbox.org/ doesn’t go well.
I tried regenerating preferences, as stated in https://www.mathworks.com/matlabcentral/answers/99625-how-do-i-regenerate-my-matlab-preferences, but to no avail. I still get the message:
Error in matab.internal.addons.launchers.showExplorer (line 134)
matlab.internal.addons.Explorer.getInstance.show(navigationData);
Is there no other way than to reinstall the whole package?I was trying to get the Field Trip Toolbox as an add on, and https://in.mathworks.com/matlabcentral/answers/60662-how-do-i-install-fieldtrip-toolbox tells me that installing it from https://www.fieldtriptoolbox.org/ doesn’t go well.
I tried regenerating preferences, as stated in https://www.mathworks.com/matlabcentral/answers/99625-how-do-i-regenerate-my-matlab-preferences, but to no avail. I still get the message:
Error in matab.internal.addons.launchers.showExplorer (line 134)
matlab.internal.addons.Explorer.getInstance.show(navigationData);
Is there no other way than to reinstall the whole package? I was trying to get the Field Trip Toolbox as an add on, and https://in.mathworks.com/matlabcentral/answers/60662-how-do-i-install-fieldtrip-toolbox tells me that installing it from https://www.fieldtriptoolbox.org/ doesn’t go well.
I tried regenerating preferences, as stated in https://www.mathworks.com/matlabcentral/answers/99625-how-do-i-regenerate-my-matlab-preferences, but to no avail. I still get the message:
Error in matab.internal.addons.launchers.showExplorer (line 134)
matlab.internal.addons.Explorer.getInstance.show(navigationData);
Is there no other way than to reinstall the whole package? edf, add-ons MATLAB Answers — New Questions
Surface Area at given hight of an STL file
Hello All,
I have an STL file and I would like to go through it (z-direction) calculating the surface area on the X-Y plane.
I would like to export the data of the layer number and the corrosponding area measured.
My knowlage in matlab is limited so any tips would help.
Thanks!Hello All,
I have an STL file and I would like to go through it (z-direction) calculating the surface area on the X-Y plane.
I would like to export the data of the layer number and the corrosponding area measured.
My knowlage in matlab is limited so any tips would help.
Thanks! Hello All,
I have an STL file and I would like to go through it (z-direction) calculating the surface area on the X-Y plane.
I would like to export the data of the layer number and the corrosponding area measured.
My knowlage in matlab is limited so any tips would help.
Thanks! stl, surface area, 3d object, table, surface, area MATLAB Answers — New Questions
Why do I get “There was an error while extracting product files. Try rerunning the Installer.” when i try to install matlab r2024b ?
Why do I get "There was an error while extracting product files. Try rerunning the Installer." when i try to install matlab r2024b? When i rerun the installer it happens again.
I tried to download the matlab installer again thinking it was some bug, however it continues to happen every time.
My pc is a windows 10, Intel(R) Core(TM) i5-2400 CPU @ 3.10GHz 3.10 GHz, ram 16,0 GB, ssd 240(150 gb free), motherboard asus P8B75-MWhy do I get "There was an error while extracting product files. Try rerunning the Installer." when i try to install matlab r2024b? When i rerun the installer it happens again.
I tried to download the matlab installer again thinking it was some bug, however it continues to happen every time.
My pc is a windows 10, Intel(R) Core(TM) i5-2400 CPU @ 3.10GHz 3.10 GHz, ram 16,0 GB, ssd 240(150 gb free), motherboard asus P8B75-M Why do I get "There was an error while extracting product files. Try rerunning the Installer." when i try to install matlab r2024b? When i rerun the installer it happens again.
I tried to download the matlab installer again thinking it was some bug, however it continues to happen every time.
My pc is a windows 10, Intel(R) Core(TM) i5-2400 CPU @ 3.10GHz 3.10 GHz, ram 16,0 GB, ssd 240(150 gb free), motherboard asus P8B75-M matlab, installation, error MATLAB Answers — New Questions
Working on sagnac-interferometer, HWP(22.5) rotated laser light 45and tilt by mirror to define emergent orthogonal polarized component with frequency component is introduced.
I am working in Sagnac Interferometers. A vertically polarized liight fromaHe–Ne laser is converted into 45 deg linearly polarized light with the help of a half-wave plate (HWP1) oriented at 22.5 deg with respect to the vertical direction and is spatially filtered and collimated after passing through the spatial filter assembly(SF)and lens L.The beam splitter splits the collimated beam with equal intensity into two arms of the interferometer.The beam transmitted by beam splitter passes through atriangular Sagnac interferometer embedded intoa telescope assembly of lenses. The 45 deg polarized beam enters the polarization beam splitter and splits into two counter propagating orthogo nal polarization components in the triangular Sagnac geometry, and the light emits from the beam splitter as angular multi plexed orthogonally polarized components.The mirrors introduce the desired amount of tilt in the emergent orthogonally polarized components Ox and Oy,which can be representedas Ox(r)= exp(iα1r) and Oy(r)= exp(iα2r) ; where α1 andα2 are the frequency coefficients introduced to the orthogonal polarization components due to their off-axis locations in the front focal plane of lens,and r is the transverse spatial coordinate.I am working in Sagnac Interferometers. A vertically polarized liight fromaHe–Ne laser is converted into 45 deg linearly polarized light with the help of a half-wave plate (HWP1) oriented at 22.5 deg with respect to the vertical direction and is spatially filtered and collimated after passing through the spatial filter assembly(SF)and lens L.The beam splitter splits the collimated beam with equal intensity into two arms of the interferometer.The beam transmitted by beam splitter passes through atriangular Sagnac interferometer embedded intoa telescope assembly of lenses. The 45 deg polarized beam enters the polarization beam splitter and splits into two counter propagating orthogo nal polarization components in the triangular Sagnac geometry, and the light emits from the beam splitter as angular multi plexed orthogonally polarized components.The mirrors introduce the desired amount of tilt in the emergent orthogonally polarized components Ox and Oy,which can be representedas Ox(r)= exp(iα1r) and Oy(r)= exp(iα2r) ; where α1 andα2 are the frequency coefficients introduced to the orthogonal polarization components due to their off-axis locations in the front focal plane of lens,and r is the transverse spatial coordinate. I am working in Sagnac Interferometers. A vertically polarized liight fromaHe–Ne laser is converted into 45 deg linearly polarized light with the help of a half-wave plate (HWP1) oriented at 22.5 deg with respect to the vertical direction and is spatially filtered and collimated after passing through the spatial filter assembly(SF)and lens L.The beam splitter splits the collimated beam with equal intensity into two arms of the interferometer.The beam transmitted by beam splitter passes through atriangular Sagnac interferometer embedded intoa telescope assembly of lenses. The 45 deg polarized beam enters the polarization beam splitter and splits into two counter propagating orthogo nal polarization components in the triangular Sagnac geometry, and the light emits from the beam splitter as angular multi plexed orthogonally polarized components.The mirrors introduce the desired amount of tilt in the emergent orthogonally polarized components Ox and Oy,which can be representedas Ox(r)= exp(iα1r) and Oy(r)= exp(iα2r) ; where α1 andα2 are the frequency coefficients introduced to the orthogonal polarization components due to their off-axis locations in the front focal plane of lens,and r is the transverse spatial coordinate. sagnac interferometers, jones matrix MATLAB Answers — New Questions
