oce | OpenCASCADE Community Edition : a community driven fork | Development Tools library

by tpaviot C++ Version: official-upstream-packages License: LGPL-2.1

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

kandi X-RAY | oce Summary

oce is a C++ library typically used in Utilities, Development Tools applications. oce has no bugs, it has no vulnerabilities, it has a Weak Copyleft License and it has low support. You can download it from GitHub.

oce (Open Cascade community Edition) is a fork of the Open Cascade 3D c++ modeling library. This project aims at gathering patches/changes/improvements from the OCC community. Official OCCT documentation and sources are available at

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Quality

Security

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Support

oce has a low active ecosystem.

It has 662 star(s) with 273 fork(s). There are 95 watchers for this library.

It had no major release in the last 12 months.

There are 53 open issues and 236 have been closed. On average issues are closed in 287 days. There are 4 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of oce is official-upstream-packages

Quality

oce has no bugs reported.

Security

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

License

oce is licensed under the LGPL-2.1 License. This license is Weak Copyleft.

Weak Copyleft licenses have some restrictions, but you can use them in commercial projects.

Reuse

oce releases are available to install and integrate.

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

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oce Key Features

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oce Examples and Code Snippets

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Community Discussions

Trending Discussions on oce

geom_isopycnal in ggoce returning error when used as standalone layer

Setting Color Breaks in ggplot2 using scale_color_gradientn for Raster Data

The need for two tokens in .NET 6 Parallel.ForEachAsync?

How to buffer and batch REST get queries with asp.net web API 2 (using TPL/Reactive)?

Getting type of an ImplicitObjectCreationExpression

Problem in building Oce - problem : /usr/bin/ld : can not find -lXi

Adding color to the ocean in R

PHP OpenSSL cannot read public key in PEM format

Uninitialised value was created by a stack allocation Valgrind c++

Memory leak Valgrind doesn't report but code using so much memory

QUESTION

geom_isopycnal in ggoce returning error when used as standalone layer

Asked 2022-Mar-20 at 21:03

I would like to draw temperature salinity diagrams with isopycnals. I've been trying to use the ggoce::geom_isopycnal layer for ggplot2 but encounter an error when using it as a standalone layer, i.e using it with a data frame containing CTD data in the ggplot instead of using a ctd object created by the package oce. I was not able to find why the assert_has_lonlat() internal function of geom_isopycnal is returning this error when I did not specify any latitude or longitude in the call.

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ANSWER

Answered 2022-Mar-20 at 21:03

According to the docs you need to add a ref_longitude and ref_latitude if eos is set to "gsw", as it is by default. You could set these to 0 without affecting the plot.

Source https://stackoverflow.com/questions/71550455

QUESTION

Setting Color Breaks in ggplot2 using scale_color_gradientn for Raster Data

Asked 2022-Jan-12 at 20:52

I'm trying to set breaks for elevation when plotting raster data but it seems to only be using two of my colors instead of the full set. I have elevation values from -5497 to 1413 and want to use light to dark blue color gradient for negative elevations (water) and grey to black colors for positive elevation (land).

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ANSWER

Answered 2022-Jan-12 at 20:52

Since you're using marmap to download bathymetric data, you might as well use marmap to plot these data. If you want to use ggplot2, it's possible using a few handy marmap functions:

Source https://stackoverflow.com/questions/70685109

QUESTION

The need for two tokens in .NET 6 Parallel.ForEachAsync?

Asked 2021-Dec-01 at 22:16

I was experimenting with how to break out of a ForEachAsync loop. break doesn't work, but I can call Cancel on the CancellationTokenSource. The signature for ForEachAsync has two tokens - one as a stand-alone argument and one in the Func body signature.

I took note that when cts.Cancel() is called, both the token and t variables have IsCancellationRequested set to true. So, my question is: what is the purpose for the two separate token arguments? Is there a distinction worth noting?

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ANSWER

Answered 2021-Dec-01 at 22:16

Token passed to the body of the method invoked by ForEachAsync is a different one and comes from a internal CancellationTokenSource which will be canceled:

on "external" cancelation (that's why you see t.IsCancellationRequested set to true when cts.Cancel() is called)
for internal reasons (one that I found - any iteration has thrown an uncaught exception).

So the purpose of cancellationToken CancellationToken argument passed to the Parallel.ForEachAsync is to support cancellation by caller and the one passed to the asynchronous delegate invoked by it - to support cancelation both by external (i.e. caller) and internal sources (see the P.S.).

P.S.

Also note that usually it is a good idea to pass and check the token state in your methods (i.e. await someConditionAsync(t) with corresponding implementation inside) since CancelationToken is used for so called cooperative cancelation.

Source https://stackoverflow.com/questions/70191295

QUESTION

How to buffer and batch REST get queries with asp.net web API 2 (using TPL/Reactive)?

Asked 2021-Nov-18 at 23:08

I am runnning a public front facing api that hardly scale for now. This API is built upon Asp.Net web API 2 (.Net 4.7.2). This

The problem that I have is that from this entry point the service have to make multiple calls to others internal services exposing their Rest interface. We have made some optimisation :

to make all those call asynchronous (async/await).
All the services (public facing one as well as internal) are load balanced and we have put in place 4 servers with hight memory ram/cpu (64 gb, 8cpu each)

But when we have sudden burst of load , or when we make some stress tests we see that we have a pain to scale up : the response time start to increase and we could not achieve more than 150 req/s and average of response is 2.5 sec while all the time seem to been spend in the network latency wainting each internal service to respond.... So I was thinking if it was possible to buffer a bunch of requests and make a batch call to the internal apis to get the details to combine and then answer the callers.

My idea would be to have a special kind of static httpClient with an async method that would bufferize the calls and will make a request when either there is a special count of calls bufferized or when a limit of few ms have elapsed : that way when we are under load our API could make few network calls and be more responsive... I know that somes are also using a mom/bus for that like Kafka for example , but it seems to me that going this way will only let us have eaven more paralell calls to handle but no real gain on the speed.. (I may be wrong on that)

To illustrate what I have in mind :

Do you think that this could be done using Reactive (for observe either the delay spent, or the count of messages bufferized)/TPL Dataflow (in order to fill a block and then make a batch call) ? I have this idea in mind but I do not know if it is a good idea, and how to make it work...

UPDATE : Find here the usefull sample code provided by Theodor Zoulias :

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ANSWER

Answered 2021-Nov-18 at 08:53

Here is a BatchExecution class, that accepts individual requests, and invokes a batch operation when the number of stored requests reaches a specified number (batchSize). The results of the batch operation are propagated to the associated individual requests:

Source https://stackoverflow.com/questions/69991283

QUESTION

Getting type of an ImplicitObjectCreationExpression

Asked 2021-Aug-26 at 22:13

If I have an ImplicitObjectCreationExpression, how can I get the type that is being created using the SemanticModel?

My code:

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ANSWER

Answered 2021-Aug-26 at 01:03

Using sharplab.io, we can see that a statement such as

Source https://stackoverflow.com/questions/68931095

QUESTION

Problem in building Oce - problem : /usr/bin/ld : can not find -lXi

Asked 2021-May-18 at 07:27

I'm trying to install Oce under ubuntu 18.04. When I try to build, first when I run "cmake" everything is ok,

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ANSWER

Answered 2021-May-16 at 20:02

You are probably missing a package that provides libXi.so library. You can find out which package you need with apt-file, i.e.:

Source https://stackoverflow.com/questions/67557047

QUESTION

Adding color to the ocean in R

Asked 2021-May-12 at 20:57

I am mapping using the "oce" package in R and want to add color to the ocean. I can manipulate the land color but not the ocean, and the mapping function omits "bg" to add background color. Here is my current code and parameters:

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ANSWER

Answered 2021-May-12 at 20:57

Bit of a hack, but you can plot a rectangle the same size as the plotting area, then use par(new = TRUE) to plot mapPlot on top:

Source https://stackoverflow.com/questions/67509647

QUESTION

PHP OpenSSL cannot read public key in PEM format

Asked 2020-Nov-20 at 21:03

I have a NodeJS application generating JSON Web Tokens with the PS256 algorithm. I want to try and verify the signatures in these tokens in a PHP application.

So far I've got the following:

My JWT:

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ANSWER

Answered 2020-Nov-20 at 21:03

After messing with this all day I finally figured out the missing piece.

First, some quick notes on the original question (already touched on in the updates):

To do RSA signatures with PSS padding ("PS256") you will need a third-party library, because the OpenSSL functions in PHP don't support this. A common recommendation is phpseclib
The 32 magic bytes I had to add to the key were only a quirk of PHP's OpenSSL functions and don't need to be utilized with phpseclib

With that said, my final problem (with the signature being "invalid") was:

JWT signatures are base64URL encoded, not base64 encoded

I wasn't even aware there was an RFC specification for base64URL encoding. It turns out you just replace every + with a - and every / with an _. So instead of:

Source https://stackoverflow.com/questions/64933766

QUESTION

Uninitialised value was created by a stack allocation Valgrind c++

Asked 2020-Nov-03 at 09:41

So, I get this error when running the command: --track-origins=yes on Valgrind

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ANSWER

Answered 2020-Nov-03 at 09:41

This isn't a leak. You are reading uninitialized memory. As @PaulMcKenzie says in the comments, time is not standard C++, rather it is a GCC extension that comes from C99.

You could use memset to ensure that time is initialized. Alternatively, you could use std::vector, for instance

Source https://stackoverflow.com/questions/64640725

QUESTION

Memory leak Valgrind doesn't report but code using so much memory

Asked 2020-Oct-23 at 22:13

I have posted recently about a segmentation fault issue that I have been getting in my code when running with Valgrind, I have got rid of the segmentation fault problem however, now the code is running, but is "eating" so much memory which indicates a memory leak somewhere that valgrind doesn't necessarily see? I am not sure really. For example it would run to the 40th iteration before the kernel kills my process.

previous post: Segmentation Fault with Valgrind

If I run the code with the corrections to the code: (initializing my arrays and changes size of arrays to be large enough)

...

ANSWER

Answered 2020-Oct-23 at 06:03

Make sure you free() all malloc'ed memory from heap

Source https://stackoverflow.com/questions/64494608

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