grasping | project contains the code | Machine Learning library
kandi X-RAY | grasping Summary
kandi X-RAY | grasping Summary
This project contains the code used for generating multi-modal grasps in V-REP, and described in the paper "An Integrated Simulator and Data Set that Combines Grasping and Vision for Deep Learning" (TBA).
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Top functions reviewed by kandi - BETA
- Plot a mesh
- Plot equal aspect ratio
- Calculate the centroid of a trimesh mesh
- Generate sample_poses
- Format matrix in 3d format
grasping Key Features
grasping Examples and Code Snippets
Community Discussions
Trending Discussions on grasping
QUESTION
I am trying to understand how JavaRx's Flux.merge and switchIfEmpty work together in regards to the below code as I am a bit confused on results I am seeing which is no doubt the result of my not fully grasping Java RX.
My question is ... If the call to wOneRepository... returns an empty list or the call to wTwoRepository... returns an empty list, will the switchIfEmpty code get executed? Or will it only get executed if both calls return an empty list?
...ANSWER
Answered 2021-Jun-14 at 14:30switchIfEmpty() will only be called if the upstream Flux completes without emitting anything, and that will only happen if both f1 and f2 complete without emitting anything. So, if both findWidget calls fail, or both return empty Flux instances, or some combination of those, then switchIfEmpty will be called. If either f1 or f2 emits a Widget, then that Widget will be emitted from the merge operator, which means switchIfEmpty will not be called.
QUESTION
new to programming and not quite grasping how this is wrong, any advice is appreciated.
...ANSWER
Answered 2021-Jun-11 at 11:46Give default value to variables by using ?? operator in case of nil. It will change type of variables from String? to String
QUESTION
Pardon my less than perfect title but having some issues grasping this.
So here's the manually created data. There are three fields; state, codetype, and code. The reason for this is that I am trying to join a more expansive version of this to a data frame consisting of 1.6 million rows and running into an issue of not having enough memory. My thought process is that I would greatly lower the number of rows in this table; industry.
...ANSWER
Answered 2021-Jun-11 at 00:12We can use distinct and specify the .keep_all as TRUE to get the entire columns
QUESTION
I am attempting to pivot this list of dates to be used as column headers. The sample query has been simplified for 12 calendar months Note: the actual date range will end up being 240 months total. I am not quite grasping the PIVOT function
...ANSWER
Answered 2021-Jun-07 at 22:51You can achieve the desired output by using dynamic sql query and pivot function. Besides the date column, I have added another dummy column for the pivot fucnction.
QUESTION
So it says this question below is a bad question because it has bad syntax...which I wouldn't have figured out if I didn't ask it, so not sure why this counts against me for possibly not enabling me to ask questions. So I click delete and it won't let me delete the question either. So what am I supposed to do?
I have a regular expression which allows special characters with the exception of < and > in the input and from html and it works like so:
...ANSWER
Answered 2021-Mar-10 at 23:27I just found a free formatter online tool and this below works for me, I think the single quotes were messing me up too:
QUESTION
I have been seeing code like this in submissions at leetcode.com and I don't understand it. My unfamiliarity with the syntax has made it hard to search for an explanation.
...ANSWER
Answered 2021-Jun-03 at 17:13This is lambda syntax, so what they're doing is creating a c++ lambda which performs the code above and evaluates it, then stores the result as a static const int. More information here: https://en.cppreference.com/w/cpp/language/lambda
My best guess is that this function will be evaluated first before main is called as static const values are initialized prior to starting the program. It seems like a hacky version of a state initializer for stdio.
QUESTION
I'm no data structures expert, but as I understand it linked lists have proven to be quite inefficient in most scenarios mostly due to cache misses. One of the few reasons I would ever consider using them is for the unique ability to merge/split two of them in constant time; yet the class doesn't provide such a method.
I thought, all right, I will implement my own to fit my needs. I wanted the new class to follow the Collections framework API so I had it implement and extend the very same classes the standard LinkedList did. Soon I realized that I was just recreating LinkedList and all of this was pointless. At that point I might as well just copy paste the code and add the methods that I need.
On the same note, I can't find a reason (besides perhaps thread-safety which I am far from fully grasping yet) why there isn't such a method. Everything seemed like a standard linked list implementation and a method similar to splice() from the C++ STL could fit in there.
Am I missing something?
...ANSWER
Answered 2021-May-19 at 21:17Java's implementation of native linkedlist has issues. There's no way to move nodes within a list or between lists, no equivalent to C++ std::list::splice(). All iterators to a link list become invalidated if there is an insertion or a deletion of a node anywhere in a linked list, unless the insert or delete is done using an iterator parameter, in which case all iterators but the one used to do the insert or delete are invalidated. Iterators can't be shallow copied, assignment just points the destination iterator to the same iterator object pointed to by the source iterator.
These issues make operations like merging or merge sort difficult, even more so for an iterator based operation.
In the case of Visual Studio C++ std::list, deletion of nodes only invalidates iterators to deleted nodes, and only in a debug build. In a release build, no iterators are invalidated, and it's up to the programmer to ensure deleted nodes don't result in iterators pointing to deleted objects.
As for why Java's native linkedlist has these limitations, Sun's stated reason at the time is they wanted a "compact framework" rather than be consistent with C++, which predates Java collections by 4 years (1998 for Java collections, 1994 HP copyright date shown at the end of most or all STL include files in the case of Visual Studio 2005 and prior versions of Microsoft and other C++ compilers). This is in spite of the fact that one of the predecessors to collections, JGL, did have the goal of being consistent with C++.
https://en.wikipedia.org/wiki/Java_collections_framework#History
There are other criticisms of Java, such as not having unsigned integers, treating primitives and objects differently, with a limited set of operations for primitives, ...
QUESTION
I have typed in the following python commands along with sample data.
...ANSWER
Answered 2021-May-08 at 10:10You reshaped the data wrongly, with this:
QUESTION
Currently using Python and Selenium to scrape data, export to a CSV and then manipulate as needed. I am having trouble grasping how to build xpath statements to access specific text elements on a dynamically generated page.
https://dutchie.com/embedded-menu/revolutionary-clinics-somerville/menu
From the above page I would like to export the category (not part of each product, but a parent element) followed by all the text fields associated to a product card.
The following statement allows me to pull all the titles (sort of) under the "Flower" category, but from that I am unable to access all child text elements within that product, only a weird variation of title. The xpath approach seems to be ideal as it allows me to pull this data without having to scroll the page with key passes/javascript.
...ANSWER
Answered 2021-May-04 at 23:54I have tried some code for you please take a look and let me know if it resolves your problem.
QUESTION
I have scenario where i need to update an attribute in a nested dynamodb entry.
Bellow is my sample DynamoDB Entry.
The table has: pipeline_name as Partition Key and pipeline_run_id as Sort Key.
Considering i want to use pipeline_name , pipeline_run_id, name and validation_method_results[columnCheck] as my predicates to update the value for any of the key value pairs inside my validation_method_results with another string value.
my python function would receive something like:
...ANSWER
Answered 2021-Apr-30 at 00:30I found the answer/solution for my use case.
I ll post it here in case somebody might want to use it or improve it.
The issue with very nested attributes in dynamodb seems to be finding the right array index location you want to make an update on.
So i had to do a bit of extra work to find those idexes prior to triggering my update_item statement.
I have created this two simple functions to help me with this proccess.
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Install grasping
Note 1: In this work, the meshes were labeled according to the convention 'XXX_yyyyyyy', where 'XXX' is the object class (e.g. 42, 25), and 'yyyyyy' is the name of the object name (e.g. 'wineglass', 'mug'). Example: '42_wineglass'.
Note 2: The simulation works best with simple meshes; For complex meshes, you may need to manually process them to reduce the number of triangles or complexity before running in the simulation. Some meshes in the above file are complex, and note that the more complex the mesh is, the more unstable the simulations will be.
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