modeler | A Python package to reconstruct 3D models from video | Computer Vision library
kandi X-RAY | modeler Summary
kandi X-RAY | modeler Summary
A simple package to reconstruct a 3D model of an object from a video taken for that object.
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Top functions reviewed by kandi - BETA
- Finds the structure of a motion
- Display the matches image
- Insert a header
- Extract color from image
- Determine if two images are equal
- Performs symmetric symmetry test
- Run ransac test
- Remove removed matches from matches
modeler Key Features
modeler Examples and Code Snippets
Community Discussions
Trending Discussions on modeler
QUESTION
I am creating a Computation Expression (CE) for simplifying the definition of Plans for modelers. I want to define functions that are only available in the CE. In this example the compiler says that the custom operations step
and branch
are being used incorrectly but I don't see why. All the compiler is saying is that they are not used correctly.
...Note I know that I could define
step
andbranch
outside of the CE to accomplish this. This question is explicitly about using Custom Operators. I want to isolate this logic so that it is only available in the context of the CE.
ANSWER
Answered 2022-Apr-16 at 14:07It's because you're inside of the list at this point. The CE keywords only work directly at the "top level" of a CE, as far as I'm aware.
You could make a "sub" CE for the individual step and put keywords in there e.g.
QUESTION
I am writing a code to read a local text file into my No Magic Cameo Systems Modeler. I am using Javascript Rhino for the same. But not getting any viable solution to read the text file.
I used Java's bufferedReader class but then I am getting the following error :
"org.mozilla.javascript.EvaluatorException: missing ; before statement (#25)"
Can anyone assist me in what I am doing wrong. I am fairly new to javascript .
...ANSWER
Answered 2022-Apr-11 at 07:29You're trying to execute Java code, not JavaScript code, so Rhino throws an error because you're not providing it valid JavaScript code
For example File fileR = ...
: this is Java code. The JavaScript equivalent is: var fileR = ....
QUESTION
ANSWER
Answered 2022-Mar-01 at 12:17If SPSS syntax is availabel to you, the following aggregation command should do the trick:
QUESTION
May I know how I can convert the data in SPSS Modeler as the image below?
I have read How to restructure data in SPSS Modeler? and tried Restructure but it did not generate format like "From_1", "To_1", etc.
Greatly appreciate any help/advice. Thanks a lot in advance.
...ANSWER
Answered 2022-Feb-18 at 08:24The following syntax will work in SPSS:
(this part is just to reconstruct your example)
QUESTION
When i redirect to the Edit.cshtml page, only the HttpGet seems to be working. The HttpPost is not working. Which means that when I make changes and click on the Edit button on the Edit form, the HttpPost Edit is supposed to be invoked to call the PUT API. But the HttpGet Edit is called instead... What have I done wrong?
The HttpGet to retrieve the existing info
...ANSWER
Answered 2022-Feb-06 at 00:46Try to edit your code as following:
Also you can read some info about Tag Helpers here
QUESTION
I added odata to startup and model builder and I wanted to test if it works and return an OData so I updated the controller and changed it to "ODataController" and I make a simple HttpGet test the result but the URL: Text returns 404 not found Text return 404 not found and Text return a simple Array with json objects
This is my code
Startup.cs
...ANSWER
Answered 2021-Aug-04 at 02:16I find the error, it comes from the routing rule of odata v8.
The construction of the relationship between endpoints and OData routing template is based on a set of rules, such rules are called OData Routing Convention. For example, “CustomersController” is an OData controller when the controller name “Customers” is an entity set in a given Edm model. “EntitySetName + Controller” is one of the OData controller name convention.
That means we need to make the controller name and EdmModel keep consistent. For example, here's my EdmModel setting in startup:
QUESTION
I tried to build a drop-down list from the AspNetRoles table in register.cshtml and register.cshtml.cs but didn't get data from AspNetRoles in the register page.
.....................................................................................................................................................
RoleController:
...ANSWER
Answered 2022-Jan-05 at 01:47Firstly, be sure your database contains roles data in AspNetRoles
table.
Then for display the dropdownlist, you also need be sure add ViewData["RoleId"]
in OnGet method:
QUESTION
I am writing a frontend/backend application. The frontend is an Angular 13 application. The backend is a combination backend API and administration web site. The backend has:
- Local Identity (including Identity scaffolding),
- Web API (for Angular frontend using Swagger bearer tokens),
- MVC view/controllers for side table administration.
The frontend needs to access API services. Login returns a token. The token is used to access the various services to maintain the application tables.
The backend .net 5 Core website reads and writes to a local SQL Server database. The database contains the Identity tables. The backend is also used to maintain the Identity tables using the scaffolding Razor pages. The backend maintains (basic CRUD) for a number of administrative tables. So, a user or an administrator logons via the scaffolding logon form using the same logon account that is used for the Angular frontend.
The problem is the login via PasswordSignInAsync is successful but User.Identity.IsAuthenticated is false. I use User.Identity in lots of places for name, roles and IsAuthenticated. I got a sense that User.Identity is supposed to happen automatically when using cookie authentication scheme. I added dual schemes, but that has not solved the problem. I have read through a number of questions per PasswordSignInAsync not working, but none seemed to help. The things I tried to solve the problem may have adversely affecting the outcome. I have read the source code of CheckPasswordSignInAsync and I do not see any setting of User.Identity. Not knowing what to do to get beyond this issue.
Please feel free to ask for any clarifications.
I’m showing my complete Startup.cs.
...ANSWER
Answered 2021-Dec-24 at 16:35After starting from ground zero, I feel I found the problem. I am now getting logon via Swagger API service (Angular 13) and the logon.cshtml Identity Razor scaffolding page.
When one properly adds the Identity scaffolding, one needs to change/review the IdentityHostingStartup.cs file. My updated IdentityHostingStartup is as follows:
QUESTION
I just downloaded activiti-app from github.com/Activiti/Activiti/releases/download/activiti-6.0.0/…
and deployed in tomcat9, but I have this errors when init the app:
ANSWER
Answered 2021-Dec-16 at 09:41Your title says you are using Java 9. With Activiti 6 you will have to use JDK 1.8 (Java 8).
QUESTION
Shared aggregation seems to express nothing more than a simple association. It is apparently a "modeling placebo" with no objective reason to use it (except in specific contexts where modelers have agreed between them on specific additional semantic).
Several sources claim however that shared aggregation would imply absence of cycles in the aggregation graph of instances. This would make aggregation a powerful tool in the domain of graph modeling.
But I couldn't find any evidence of those claims in the specifications. Did I miss some indirect evidence (e.g. interplay of several constraints)?
More details The quoteIn their book The Unified Modeling Language Reference Manual, 2nd Edition, Booch, Jacobson and Rumbaugh claim about (shared) aggregation:
The distinction between aggregation and association is often a matter of taste rather than a difference in semantics. Keep in mind that aggregation is association. Aggregation conveys the thought that the aggregate is inherently the sum of its parts. In fact, the only real semantics that it adds to association is the constraint that chains of aggregate links may not form cycles, which is often important to know, however. (...) In spite of the few semantics attached to aggregation, everybody thinks it is necessary (for different reasons). Think of it as a modeling placebo.
Other rather well informed sources(e.g. uml-diagrams.org and several academic papers) keep the directed acyclic graph for granted as well.
Verification against the UML specificationsThe books is from 2004, based on UML 2.0. But most of this claim is still verified in the UML 2.5.1 specification. Shared aggregation is defined therein in very vague terms and without any objective advantage over a simple association (p.112):
Sometimes a Property is used to model circumstances in which one instance is used to group together a set of instances; this is called aggregation. To represent such circumstances, a Property has an aggregation property, of type AggregationKind; (...)
...
shared : Indicates that the Property has shared aggregation semantics. Precise semantics of shared aggregation varies by application area and modeler.
Another clause about aggregation prevents some special cycling situations (p.200):
An end Property of an Association may only be marked as a shared or composite aggregation if the Association is binary and the other end is not marked as a shared or composite aggregation.
I have however not found any evidence that "chains of aggregate links may not form cycles" in the general case. I also did not find other properties such as transitivity and anti-symetry which could allow to infer the absence of cycles.
Is the claim by the UML inventors now obsolete? Or did I miss something in the current specs that would allow to derive this statement ?
...ANSWER
Answered 2021-Dec-12 at 11:32I think my favorite page 110 of UML 2.5 is quite clear about this:
Sometimes a Property is used to model circumstances in which one instance is used to group together a set of instances; this is called aggregation. To represent such circumstances, a Property has an aggregation property, of type AggregationKind; the instance representing the whole group is classified by the owner of the Property, and the instances representing the grouped individuals are classified by the type of the Property. AggregationKind is an enumeration with the following literal values:
none Indicates that the Property has no aggregation semantics. shared Indicates that the Property has shared aggregation semantics. Precise semantics of shared aggregation varies by application area and modeler. composite Indicates that the Property is aggregated compositely, i.e., the composite object has responsibility for the existence and storage of the composed objects (see the definition of parts in 11.2.3).Composite aggregation is a strong form of aggregation that requires a part object be included in at most one composite object at a time. If a composite object is deleted, all of its part instances that are objects are deleted with it.
Emphasis by me. Shared aggregation is out of the run in any case since its semantic is undefined by definition. So the implication is only for composite aggregation.
What is the standard?
UML has quite some history. And there are lots of citations out there. Only the fewest get updates along with UML evolving. Although Booch et al. invented UML, they are no longer defining the standard. That's done by OMG and they publish the ISO standard (for which you can pay extra money if you like). Quite some terms go round which have ancient origins and are outdated the one or other way. Still, they are being used - and in the now wrong context.
Is the standard perfect?
Definitely not. It's evolving and still has quite some flaws or misconceptions. In my opinion the introduction of shared aggregation in UML 2.0 was not a so good idea. To define something that has no definition per definition seems odd. And looking at the confusion about this concept proves me right.
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