b2d | like b3d , but 2d . | Frontend Framework library
kandi X-RAY | b2d Summary
kandi X-RAY | b2d Summary
A 2D shape editor that runs in your browser. Vision: like Blender3D for 2D. This project is mainly a personal learning project - not something intended for real use cases, but who knows where it'll end up.
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Community Discussions
Trending Discussions on b2d
QUESTION
This seems simple, but none of the approaches I've tried have worked.
I have a tibble b2d with the following structure:
ANSWER
Answered 2022-Mar-30 at 19:53When it is unlisted, it will unlist the whole list. We may need to loop over the list with map and convert to numeric. map returns a list
QUESTION
ABC is a music notation; I'm working on patterns to parse it as part of an app.
Sometimes multiple renditions of a tune are in an ABC file, and I need to get just the first rendition -- or in an ideal world any rendition I specify. The beginning of a rendition is signified by the X: string.
It's not possible to know in advance how many renditions are in a file.
In Javascript, how can I return, for example, the first rendition (from the first X: inclusive to the beginning of the second) in the example below, in a way that will return the first if there is no second, and return the first if there are more than two renditions.
My work so far yields ([\s\S]*)(?=X:) which succeeds in the two rendition example, but fails with a single rendition or more than two.
Adding an 'OR'd end of file condition to the lookahead lets the single rendition case work, but fails on the one and three rendition cases, e.g. \([\s\S]*)(?=X:|$)
Any help appreciated ... a good way to parse ABC will be used by many.
A two-rendition example can look like the below -- for a three rendition example just add a line with X: at the end, and for a single chop off everything from the second X:
EDITS: Folks have been kind enough to ask for better examples, and they won't fit in a comment, so here's a few
Broken pledge is interesting because it has more than one ABC and they're not numbered sequentially:
...ANSWER
Answered 2021-Sep-19 at 17:19This is a complete rewrite of the answer, sorry. The following function returns the info you are currently interested in (it can be extended to return more info, like, e.g., the titles of the renditions as an array sharing indices with the renditions array).
QUESTION
I am developing an AWS Lambda application. This is a REST API, so i am using AWS Lambda, API Gateway and AWS RDS. I am using aws sam for the deployment and all.
I have 193 end points in my REST API, which means 193 Lambda functions. When i try to deploy this, I got the following error message.
...ANSWER
Answered 2021-Aug-26 at 13:59You can use the Cloudformation Stack Resource to implement nested Stacks in CloudFormation. The template url will be resolved by using the Cloudformation Package command.
CodeExample:
QUESTION
I have a data frame like this:
The column samples have multiple unique values, and few of these samples are paired to another sample (in the same column samples). This matched-pair is given by the match column. Few samples do not have matches as indicated by the none value in the match column.
ANSWER
Answered 2021-Apr-30 at 17:38You can try with this:
QUESTION
I'm trying to understand the principles of a database using the sqflite package.
I test a tutorial found on the web which works well with a Textfield and the display of results.
When I test this same code but fit it to 2 screens, it only works if I do a hotload in Android Studio and I can't figure out where the problem is coming from.
Could someone explain to me what I don't understand to solve the problem?
Thank you
MyHomePage: MyHomePage.dart
...ANSWER
Answered 2021-Feb-22 at 06:23As I saw your code, Maybe you have a problem with your initState()
QUESTION
This is quite bizarre in my opinion. I create fixtures based on a fixtureDef. I use the libGDX version of Box2D. This is my code:
...ANSWER
Answered 2021-Jan-03 at 08:53UPDATE
It seems that this issue is already tracked here and has been fixed in the new 1.9.13 release (see the release notes. So this problem can be fixed by updating your libGDX version to 1.9.13.
I just tested this in my project and found the same behavior that you described. I'm setting the maskBits of my FixutreDef to 9, but when I create the Body and check the fixtures with the debuger the maskBits of the Fixture are set to -1. So this bug seems to be reproducable.
But if I change the maskBits of the FixtureDef, to avoid a specific category of fixtures (I tested it with enemy fixtures), they indeed do no longer collide with the created Fixture (what is not possible if it realy has the maskBits set to -1, because that would mean that the fixture collides with every other object).
So the maskBits of the fixtures in libGDX seem to be wrong, while the maskBits of the fixtures in Box2D seem to be correct, which could be possible, because libGDX uses a java wrapper for Box2D, which is implemented in native methods (in C I think).
Therefore the collision detection is working, but the java wrappers show the wrong values (maybe because of wrong references, because you said that "The mask that these fixtures get is instead the mask of the body that I have destroyed prior to creating these new fixtures").
This problem might just be a bug in libGDX, which is quite hard to find, because everything seems to be working at first (until you debug it).
You should add this bug to libGDX's issue tracker, so it can be fixed. But unfortunately this could take some time, so you probably need to keep your workarround for some time, or just ignore it, because the collision detection is working anyways.
QUESTION
I'm setting up a box2d body, using some old code for reference, in my old code i have right at the end of setting up the body, this line
...ANSWER
Answered 2020-Dec-16 at 15:28After further investigation I found the function had been depracated, as the set up for user data had been changed to have a wrapper struct.
the old set up was as follows:
QUESTION
I have two following shell scripts.
nodes.sh:
...ANSWER
Answered 2020-Aug-25 at 15:20In nodes.sh, rather than invoking jq without any argument, invoke it as jq -s ..
QUESTION
public static void Dec(string[] args)
{
string b = "1000000000001010";
string a = Convert.ToInt32(b, 2).ToString();
Console.WriteLine(a);
}
string B2D(string b)
{
string a = Convert.ToInt32(b, 2).ToString();
return a;
}
string B2H(string b)
{
string a = Convert.ToInt32(b, 2).ToString("X");
return a;
}
string B2O(string b)
{
int a = Convert.ToInt32(b, 2);
string c = Convert.ToString(a, 8);
return c;
}
ANSWER
Answered 2020-Aug-23 at 08:55I have a signed binary number which is -10 in Decimal form
1000000000001010(2) isn't -10(10) The '1' at the beggining means minus sign, but with negative numbers, you create them in other way than positive.
https://en.wikipedia.org/wiki/Two%27s_complement https://www.geeksforgeeks.org/how-the-negative-numbers-are-stored-in-memory/
Alex Larionov mentioned in comments, that -10(10) = 1111111111110110(-2) and that it needs to be converted to Int16. It's true, as if 16bit number is converted to 32bit number it becomes positive number: 00000000000000001111111111110110(2) = 65 526(10) (The conversion fills additional 16bits with zeros and makes number no longer a 16bit negative number)
the 32bit representation in (two's completement) binary system is 11111111111111111111111111110110
QUESTION
I want the value vd from the b2d() method into the main() function :
ANSWER
Answered 2020-May-19 at 14:59void main(){
var vb = b2d();
print("$vb") // The value of VB will be here.
}
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