sdf | Parallelized triangle mesh -- > continuous signed distance

by sxyu C++ Version: Current License: BSD-2-Clause

X-Ray Key Features Code Snippets(2)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | sdf Summary

sdf is a C++ library. sdf has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

In robust mode (default) we use raytracing (parity count) to check containment. Currently the ray tracing has the same limitation as embree, that is when ray exactly hits an edge the intersection gets double counted, inverting the sign of the distance function. This is theoretically unlikely for random points but can occur either due to floating point error or if points and mesh vertices are both taken from a grid. In practice, we (1) randomize the ray tracing direction and (2) trace 3 rays along different axes and take majority to decrease the likelihood of this occurring. In non-robust mode we use nearest surface normal to check containment. The contains check (and SDF sign) will be wrong under self-intersection or if normals are incorrectly oriented.

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Support

sdf has a low active ecosystem.

It has 225 star(s) with 25 fork(s). There are 7 watchers for this library.

It had no major release in the last 6 months.

There are 8 open issues and 0 have been closed. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of sdf is current.

Quality

sdf has 0 bugs and 0 code smells.

Security

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

sdf code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

sdf is licensed under the BSD-2-Clause License. This license is Permissive.

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

Reuse

sdf releases are not available. You will need to build from source code and install.

Installation instructions, examples and code snippets are available.

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sdf Key Features

No Key Features are available at this moment for sdf.

sdf Examples and Code Snippets

Triangle mesh to signed-distance function (SDF),Quickstart,Usage example:

C++

Lines of Code : 23

License : Permissive (BSD-2-Clause)

Copy

from pysdf import SDF

# Load some mesh (don't necessarily need trimesh)
import trimesh
o = trimesh.load('some.obj')
f = SDF(o.vertices, o.faces); # (num_vertices, 3) and (num_faces, 3)

# Compute some SDF values (negative outside);
# takes a (num_po

Triangle mesh to signed-distance function (SDF),C++ Library Usage

C++

Lines of Code : 17

License : Permissive (BSD-2-Clause)

Copy

sdf::SDF sdf(verts, faces); // verts (n, 3) float, faces (m, 3) float

// SDF. points (k, 3) float; return (k) float
Eigen::Vector3f sdf_at_points = sdf(points);

// Containment test, equal (but maybe faster) than sdf >= 0.
// points (k, 3) float;

Community Discussions

Trending Discussions on sdf

How can we get count as 0 if a value in certain grouping is not found, instead of dropping the row altogether in data.table rollup?

how to split a string which is having comma and colon

AttributeError: 'DataFrame' object has no attribute 'to_sparse'

Can I save a MultibodyPlant into URDF (or other supported xml type file)?

BarChart X-Value does not correspond with Y-Value

RDKit: "TypeError: 'Mol' object is not iterable" when attempting looped enumeration

Uncaught TypeError: Cannot read properties of undefined (reading 'remove')

Replace last characters of a string if it meets criteria

PySpark: applying varying window sizes to a dataframe in pyspark

Spring cloud config server git connection issues

QUESTION

How can we get count as 0 if a value in certain grouping is not found, instead of dropping the row altogether in data.table rollup?

Asked 2022-Mar-29 at 14:10

I have a dataset sdf and I am trying to get a groupby-rollup of the summary statitics. I am using rollup from data.table, but the problem is when a certain value is missing in the grouping, or lets say has the count 0, no statistics is given for it.

Output of dput(as.data.frame(sdf):

...

ANSWER

Answered 2022-Mar-29 at 14:10

One approach (similar to as suggested in comments) is to join on a look up table of all the unique combinations of the three grouping variables:

Source https://stackoverflow.com/questions/71645892

QUESTION

how to split a string which is having comma and colon

Asked 2022-Mar-24 at 10:28

I have a following query like this

...

ANSWER

Answered 2022-Mar-23 at 17:20

If there's only one row of data, then you can use

Source https://stackoverflow.com/questions/71591090

QUESTION

AttributeError: 'DataFrame' object has no attribute 'to_sparse'

Asked 2022-Mar-16 at 17:30

sdf = df.to_sparse() has been deprecated. What's the updated way to convert to a sparse DataFrame?

...

ANSWER

Answered 2022-Mar-15 at 22:18

You can use scipy to create sparse matrix:

Source https://stackoverflow.com/questions/71489011

QUESTION

Can I save a MultibodyPlant into URDF (or other supported xml type file)?

Asked 2022-Mar-14 at 02:31

For example I can build a model using functions like AddRigidbody and AddJoint. After the model is built, can I save the model into a URDF file or other xml type file? Drake can load model from URDF or SDF using parser but I haven't find function for saving the MultibodyPlant into URDF or SDF. Thank you for your answer!

...

ANSWER

Answered 2022-Mar-14 at 02:31

I'm afraid Drake doesn't offer that capability (at least not yet). Contributions are always welcome!

Source https://stackoverflow.com/questions/71462288

QUESTION

BarChart X-Value does not correspond with Y-Value

Asked 2022-Feb-12 at 16:13

I've got the following BarEntry List:

...

ANSWER

Answered 2022-Feb-12 at 16:13

Use numbers 1,2,3,4,5 etc. as the x value instead of date. Each number should represend a date:

Source https://stackoverflow.com/questions/71055715

QUESTION

RDKit: "TypeError: 'Mol' object is not iterable" when attempting looped enumeration

Asked 2022-Jan-29 at 19:07

I am trying to use RDKit to enumerate large libraries of compounds and output the result as a single column of SMILES strings in a CSV file. I was able to use the following code successfully:

...

ANSWER

Answered 2022-Jan-29 at 19:07

EnumerateLibraryFromReaction expects a list.

So this should work:

Source https://stackoverflow.com/questions/70899270

QUESTION

Uncaught TypeError: Cannot read properties of undefined (reading 'remove')

Asked 2022-Jan-16 at 19:22

What's the problem in my code?

Uncaught TypeError: Cannot read properties of undefined (reading 'remove')

and

Uncaught TypeError: Cannot read properties of undefined (reading 'add')

...

ANSWER

Answered 2022-Jan-16 at 11:51

JavaScript is case-sensitive

Change
classlist to classList (l → L)

Source https://stackoverflow.com/questions/70719360

QUESTION

Replace last characters of a string if it meets criteria

Asked 2022-Jan-06 at 13:30

I have a vector of strings:

...

ANSWER

Answered 2022-Jan-06 at 13:30

A possible solution, using stringr::str_remove:

Source https://stackoverflow.com/questions/70607331

QUESTION

PySpark: applying varying window sizes to a dataframe in pyspark

Asked 2022-Jan-04 at 17:50

I have a spark dataframe that looks something like below.

date ID window_size qty 01/01/2020 1 2 1 02/01/2020 1 2 2 03/01/2020 1 2 3 04/01/2020 1 2 4 01/01/2020 2 3 1 02/01/2020 2 3 2 03/01/2020 2 3 3 04/01/2020 2 3 4

I'm trying to apply a rolling window of size window_size to each ID in the dataframe and get the rolling sum. Basically I'm calculating a rolling sum (pd.groupby.rolling(window=n).sum() in pandas) where the window size (n) can change per group.

Expected output

date ID window_size qty rolling_sum 01/01/2020 1 2 1 null 02/01/2020 1 2 2 3 03/01/2020 1 2 3 5 04/01/2020 1 2 4 7 01/01/2020 2 3 1 null 02/01/2020 2 3 2 null 03/01/2020 2 3 3 6 04/01/2020 2 3 4 9

I'm struggling to find a solution that works and is fast enough on a large dataframe (+- 350M rows).

What I have tried

I tried the solution in the below thread:

The idea is to first use sf.collect_list and then slice the ArrayType column correctly.

...

ANSWER

Answered 2022-Jan-04 at 17:50

About the errors you get:

The first one means you can't pass a column to slice using DataFrame API function (unless you have Spark 3.1+). But you already got it as you tried using it within SQL expression.
Second error occurs because you pass column names quoted in your expr. It should be slice(qty_list, count, window_size) otherwise Spark is considering them as strings hence the error message.

That said, you almost got it, you need to change the expression for slicing to get the correct size of array, then use aggregate function to sum up the values of the resulting array. Try with this:

Source https://stackoverflow.com/questions/70580443

QUESTION

Spring cloud config server git connection issues

Asked 2021-Dec-22 at 01:07

I see issues in the Spring cloud config server (Springboot) logs when connecting to the repo where configs are stored. I'm not sure if it's unable to clone because of credentials or something else (git-upload-pack not permitted). Any pointers to this would be great.

...

ANSWER

Answered 2021-Oct-28 at 00:08

Github token needs to be passed as username which I was configuring against the password property for the spring boot app. The password property needs to be left empty and the Github-token needs to be assigned to the username like below-

Source https://stackoverflow.com/questions/69481013

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

Vulnerabilities

No vulnerabilities reported

Install sdf

Install python binding: pip install pysdf.

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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