hmm | Heightmap meshing utility | Service Mesh library

by fogleman C Version: v1.1.0 License: MIT

X-Ray Key Features Code Snippets(3)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | hmm Summary

hmm is a C library typically used in Architecture, Service Mesh applications. hmm has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

hmm is a heightmap meshing utility. If you've done any 3D game development, 3D printing, or other such things, you've likely wanted to convert a grayscale heightmap image into a 3D mesh. The naive way is pretty simple but generates huge meshes with millions of triangles. After hacking my way through various solutions over the years, I finally decided I needed to write a good tool for this purpose. hmm is a modern implementation of a nice algorithm from the 1995 paper Fast Polygonal Approximation of Terrains and Height Fields by Garland and Heckbert. The meshes produced by hmm satisfy the Delaunay condition and can satisfy a specified maximal error or maximal number of triangles or vertices. It's also very fast.

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Quality

Security

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Reuse

Support

hmm has a low active ecosystem.

It has 513 star(s) with 43 fork(s). There are 17 watchers for this library.

It had no major release in the last 12 months.

There are 10 open issues and 4 have been closed. On average issues are closed in 0 days. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of hmm is v1.1.0

Quality

hmm has 0 bugs and 0 code smells.

Security

hmm has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

hmm code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

hmm is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

hmm releases are available to install and integrate.

Installation instructions are not available. Examples and code snippets are available.

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hmm Key Features

No Key Features are available at this moment for hmm.

hmm Examples and Code Snippets

Fit the HMM model using the HMM model .

python

Lines of Code : 152

License : No License

Copy

def fit(self, X, max_iter=25, eps=1e-1):
        # train the HMM model using the Baum-Welch algorithm
        # a specific instance of the expectation-maximization algorithm

        # concatenate sequences in X and determine start/end positions

Fit the HMM model using the HMM algorithm .

python

Lines of Code : 149

License : No License

Copy

def fit(self, X, max_iter=25, eps=1e-1):
        # train the HMM model using the Baum-Welch algorithm
        # a specific instance of the expectation-maximization algorithm

        # concatenate sequences in X and determine start/end positions

Train the HMM model .

python

Lines of Code : 147

License : No License

Copy

def fit(self, X, max_iter=30, eps=1e0):
        # train the HMM model using the Baum-Welch algorithm
        # a specific instance of the expectation-maximization algorithm

        N = len(X)
        D = X[0].shape[1] # assume each x is organized (T

Community Discussions

Trending Discussions on hmm

Nextflow: Not all items in channel used by process

Behavior of `R CMD build` depending of Rd content

How do I move a point's y coordinate to intersect with a line?

Python name mangling allows access both ways

Is the use of * allowed in Snakemake?

Is the timing of MATLAB reliable? If yes, can we reproduce the performance with julia, fortran, etc.?

How to Use NSTableViewDiffableDataSource to Load Data with NSTableView

getX null initial value and use '??' but getting The function can't be unconditionally invoked because it can be 'null'

Snakemake: MissingInputException

pages_messaging permission required when subscribing for Instagram messages (Facebook app)

QUESTION

Nextflow: Not all items in channel used by process

Asked 2022-Mar-05 at 15:20

I've been struggling to identify why a nextflow (v20.10.00) process is not using all the items in a channel. I want the process to run for each sample bam file (10 in total) and for each chromosome (3 in total).

Here is the creation of the channels and the process:

...

ANSWER

Answered 2022-Mar-05 at 15:20

Issues like this almost always involve the use of multiple input channels:

When two or more channels are declared as process inputs, the process stops until there’s a complete input configuration ie. it receives an input value from all the channels declared as input.

Your initial assessment was correct. However, the reason only three processes were run (i.e. one sample for each of the three chromosomes), is because this line (probably) returned a list (i.e. a java LinkedList) containing a single element, and lists behave like queue channels:

Source https://stackoverflow.com/questions/71352719

QUESTION

Behavior of `R CMD build` depending of Rd content

Asked 2022-Feb-17 at 11:17

R CMD build behaves differently whether a Rd file contains \PR{} or not. See Writing R Extensions for details on the macros.

Example when a Rd file does not contain \PR{}:

...

ANSWER

Answered 2022-Feb-16 at 19:10

Here's an explanation of the mechanism that led to this difference.

You can see the system macro definitions in the file at file.path(R.home(), "share/Rd/macros/system.Rd"). The definition for \PR is

Source https://stackoverflow.com/questions/71140860

QUESTION

How do I move a point's y coordinate to intersect with a line?

Asked 2022-Jan-28 at 18:21

I have point c, which represents the center of a circle. After I drag the circle, I want its y coordinate hmm to snap to a line that's drawn between point a and b. How do I solve for hmm?

So far I've been able to find the midway y value between points a and b. However, it's not taking into account point c's x value.:

...

ANSWER

Answered 2022-Jan-28 at 18:21

X coordinate of C depends on where you drag it, but Y coordinate should be so point stays on line between A and B?

The equation of line between 2 points (A and B): (x - Xa) / (Xa - Xb) = (y - Ya) / (Ya - Yb).

So hmm = (x - Xa) * (Ya - Yb) / (Xa - Xb) + Ya.

Because it's equation of line you can drag point C over A/B X coordinates and still find corresponsive Y value.

Hope I've understood your question right.

Source https://stackoverflow.com/questions/70898261

QUESTION

Python name mangling allows access both ways

Asked 2022-Jan-25 at 14:34

So I have come across a very interesting behavior of python name mangling. Consider the following code

...

ANSWER

Answered 2022-Jan-25 at 13:41

__-prefixed names work fine as-is inside the class's own methods. It's only outside the class (including in its subclasses) that the modified name is needed to access the attribute, due to name-mangling.

Source https://stackoverflow.com/questions/70849402

QUESTION

Is the use of * allowed in Snakemake?

Asked 2022-Jan-19 at 13:41

I need to concatenate certain files inside some directories that have been created using a wildcard in a Snakefile. I tried to create the following rule to concatenate all files inside these directories:

...

ANSWER

Answered 2022-Jan-19 at 10:25

Snakefile is Python code and as such all the file references should be strings/path-like objects (or variables/functions that return such objects). However, in general input files should be specific files, rather than directories.

There are several ways out of this, one of which is to glob files inside python and pass them explicitly:

Source https://stackoverflow.com/questions/70768755

QUESTION

Is the timing of MATLAB reliable? If yes, can we reproduce the performance with julia, fortran, etc.?

Asked 2022-Jan-05 at 08:26

Originally this is a problem coming up in mathematica.SE, but since multiple programming languages have involved in the discussion, I think it's better to rephrase it a bit and post it here.

In short, michalkvasnicka found that in the following MATLAB sample

...

ANSWER

Answered 2021-Dec-30 at 12:23

tic/toc should be fine, but it looks like the timing is being skewed by memory pre-allocation.

I can reproduce similar timings to your MATLAB example, however

On first run (clear workspace)
- Loop approach takes 2.08 sec
- Vectorised approach takes 1.04 sec
- Vectorisation saves 50% execution time
On second run (workspace not cleared)
- Loop approach takes 2.55 sec
- Vectorised approach takes 0.065 sec
- Vectorisation "saves" 97.5% execution time

My guess would be that since the loop approach explicitly creates a new matrix via zeros, the memory is reallocated from scratch on every run and you don't see the speed improvement on subsequent runs.

However, when HH remains in memory and the HH=___ line outputs a matrix of the same size, I suspect MATLAB is doing some clever memory allocation to speed up the operation.

We can prove this theory with the following test:

Source https://stackoverflow.com/questions/70531385

QUESTION

How to Use NSTableViewDiffableDataSource to Load Data with NSTableView

Asked 2021-Dec-07 at 14:57

I'm trying to learn how to use NSTableViewDiffableDataSource to load data with NSTableView. I am able to use UITableViewDiffableDataSource and UICollectionViewDiffableDataSource to load data in iOS because I have found some examples online. But I am not able to use NSTableViewDiffableDataSource in Cocoa.

In the following case, I have a subclass of NSTableCellView named TestTableCellView, which shows three fields: First name, Last name, and his or her date of birth in String.

...

ANSWER

Answered 2021-Dec-07 at 14:57

Create a snapshot like this and it should work:

Source https://stackoverflow.com/questions/70253762

QUESTION

getX null initial value and use '??' but getting The function can't be unconditionally invoked because it can be 'null'

Asked 2021-Dec-02 at 18:52

I have get value of RxString? name; and want to use in the Text() widget like

...

ANSWER

Answered 2021-Dec-02 at 10:25

Use both ?. and ??

Source https://stackoverflow.com/questions/70197345

QUESTION

Snakemake: MissingInputException

Asked 2021-Nov-30 at 11:22

I am trying to create a simple Snakemake workflow and I am having some issues. My file generates the following errors:

...

ANSWER

Answered 2021-Nov-30 at 11:22

You have:

Source https://stackoverflow.com/questions/70167123

QUESTION

pages_messaging permission required when subscribing for Instagram messages (Facebook app)

Asked 2021-Nov-11 at 06:55

I'm creating an app that will allow me to manage my Instagram account, following the guide from here

Now I'm at the App Review stage and I have a conundrum:

theoretically I should not need the pages_messaging permission (the documentation is not mentioning this as required)
that being said, when I make my call to register a callback for Instagram messages `POST /v11.0/{page-id}/subscribed_apps?fields=messages&access_token={access_token} the call will fail with WWW-Authenticate: OAuth "Facebook Platform" "insufficient_scope" "(#200) To subscribe to the messages field, one of these permissions is needed: pages_messaging" (this call is the same they are making in the documentation)
so I've added the pages_messaging permission in my review
now I'm unable to pass review as they keep telling me that I don't need the pages_messaging permission for my use case (managing Instagram messages) - "We determined that your app's use case for the requested permission or feature is invalid or is not needed to support its core functionality."

Hmm.... what am I missing? Any guidance that you can provide?

...

ANSWER

Answered 2021-Nov-11 at 06:55

After further attempts:

we could not find a technical way for not needing the pages_messaging permission
Facebook would not approve this permission for our Instagram app - we got no more details than "invalid or is not needed"
we resorted to actually increasing the scope of our app to also cover Facebook page messages, we re-recorded our demos to showcase interaction with a FB page.
with the new approach we managed to pass the pages_messaging approval process

It feels like we're doing something wrong - we shouldn't have had to support Facebook messages and go through the lengthy process of changing our app just to showcase FB page interaction. Not if we only wanted Instagram support.

Alas, as of October 2021, this is how we moved things along. Hopefully something will change in the future to make things more clear & transparent in future.

Source https://stackoverflow.com/questions/69555265

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install hmm

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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