Orbit | Blockchain Transactions Investigation Tool | Blockchain library
kandi X-RAY | Orbit Summary
kandi X-RAY | Orbit Summary
Orbit is designed to explore network of a blockchain wallet by recursively crawling through transaction history. The data is rendered as a graph to reveal major sources, sinks and suspicious connections. Note: Orbit only runs on Python 3.2 and above.
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Top functions reviewed by kandi - BETA
- Get list of transactions
- Round n to m
- Requester for raw addr
- Returns the number of pages to be displayed
- Exports the graph to a file
- Prepare the graph for rendering
- Rank a database
- Download Quark
- Return a set of new entries in the database
- Perform a crawl
- Generate a random location
Orbit Key Features
Orbit Examples and Code Snippets
def example_2() -> BodySystem:
"""
Example 2: Moon's orbit around the earth
This example can be seen as a test of the implementation: given the right
initial conditions, the moon should orbit around the earth as it actually does.
def get_donut():
N = 2000
R_inner = 5
R_outer = 10
# distance from origin is radius + random normal
# angle theta is uniformly distributed between (0, 2pi)
R1 = np.random.randn(N//2) + R_inner
theta = 2*np.pi*np.random.random(N//2)
X
def get_donut():
N = 200
R_inner = 5
R_outer = 10
# distance from origin is radius + random normal
# angle theta is uniformly distributed between (0, 2pi)
R1 = np.random.randn(N//2) + R_inner
theta = 2*np.pi*np.random.ran
Community Discussions
Trending Discussions on Orbit
QUESTION
Basically, I want to access my 3D model element as well as want to control the camera and other things like mesh, animation etc from another component. I'm using pure threeJs and react for this. I've added pure threejs code in the componentDidMount part of the react App class and I want to control suppose the camera part from componentDidMount from another component named CollapseButton. How can I access those camera,scene,materials from CollapseButton? Also when I click a button from CollapseButton I want to do a specific task with the threeJs part declared in the componentDidMount.
In short: From CollapseButton I want to click a button and do a specific task on the pure threeJs part declared in ComponentDidMount. Click a button defined in CollapseButton> Call a function or do something on componentDidmount/threejs part
Here is my App.js:
...ANSWER
Answered 2022-Apr-04 at 07:34You can store a reference to your threeJS component in a React ref and expose it to your collapse button as a prop (or by a React context if you plan to use it in more than one component)
As a prop:
QUESTION
I am trying to solve a low thrust optimal control problem for Earth orbits, i.e. going from one orbit to another. The formulation of the problem includes six states (r_1, r_2, r_3, v_1, v_2, v_3) and 3 controls (u_1, u_2, u_3) with a simplified point model of gravity. When I specify the full initial state and half of the final state, the solver converges and yields a good solution. When I try the full final state, the problem is over constrained.
My thought on how to remedy this is to allow the trajectory to depart the initial orbit at any point along the orbital curve and join the final orbit an any point along the final orbital curve, giving it more degrees of freedom. Is there a way to constrain the initial and final values of all 6 states to a cspline
curve? This is what I have tried so far:
ANSWER
Answered 2022-Apr-03 at 21:17It is generally much harder for an optimizer to exactly reach a fixed endpoint, especially when it depends on a complex sequence of moves. This often leads to infeasible solutions. An alternative is to create a soft constraint (objective minimization) to penalize deviations from the final trajectory. Here is an example that is similar:
QUESTION
I'm really struggling here and I can't get it right, not even knowing why.
I'm using p5.js
in WEBGL mode, I want to compute the position of on point rotated on the 3 axes around the origin in order to follow the translation and the rotation given to object through p5.js, translation and rotatation on X axis, Y axis and Z axis.
The fact is that drawing a sphere in 3d space, withing p5.js
, is obtained by translating and rotating, since the sphere is created at the center in the origin, and there is no internal model giving the 3d-coordinates.
After hours of wandering through some math too high for my knowledge, I understood that the rotation over 3-axis is not as simple as I thought, and I ended up using Quaternion.js. But I'm still not able to match the visual position of the sphere in the 3d world with the coordinates I have computed out of the original point on the 2d-plane (150, 0, [0]).
For example, here the sphere is rotated on 3 axis. At the beginning the coordinates are good (if I ignore the fact that Z is negated) but at certain point it gets completely out of sync. The computed position of the sphere seems to be completely unrelated:
It's really hours that I'm trying to solve this issue, with no result, what did I miss?
Here it follows my code:
...ANSWER
Answered 2022-Feb-26 at 22:25I've finally sorted out. I can't really understand why works this way but I didn't need quaternion at all, and my first intuition of using matrix multiplications to apply rotation on 3-axis was correct.
What I did miss in first instance (and made my life miserable) is that matrix multiplication is not commutative. This means that applying rotation on x, y and z-axis is not equivalent to apply same rotation angle on z, y and x.
The working solution has been achieved with 3 simple steps:
- Replace quaternion with matrix multiplications using vectors (method
#resize2
) - Rotating the drawing plane with Z-Y-X order
- Doing the math of rotation in X-Y-Z order
QUESTION
in my program I defined a data type called Lyapunov_orbit
that contains 8 fields, then I used it to read data from external .txt file (see below where I report only a few lines for convenience because the file has about 4000 lines). I need to perform some operations by using such structure (as to find minimum and maximum value of an array) but to handle it I had to declare an "auxiliary" variable called vec_J_cst
because if I try to directly use my data strucutre, I get some errors (the structure-name is invalid or missing).
Here is the .txt file:
...ANSWER
Answered 2022-Feb-24 at 15:55The problem with the lines
QUESTION
I have permission to modify this executable.
A game called Emperor of the Fading Suns has spaceships in it. When you launch into orbit with a specific ship, said ship lose one movement point.
Game\OllyDB
DEC BYTE PTR DS:[EAX+2F]
reduces movement points by one
I want to alter this so that you have 0 movement points left.
I have tried a lot of stuff, but the reality is that I simply don't have enough experience to understand what I need to overwrite (assemble) in order to achieve 0 movement point per takeoff. Changing out DEC with INC works.
My beginning strategy went to this: MOV BYTE PTR DS:[EAX+2F], 0
(I am a novice at assembly)
Longer list of code for context:
Thanks for the tip, I'm really excited about making this a function so I don't have words to describe how happy I am for anyone to tell me how to do this. If there is additional info required then I'll post a longer version and link to it.
...ANSWER
Answered 2022-Feb-23 at 22:57The trick is to observe that the instruction at 457dd0 and 457dd6 are the same and can be combined.
QUESTION
I have a multi module project with a plugin and fragment to test this plugin. The build is done through maven/tycho. Maven v.3.8.4 and Tycho v2.6.0.
In the fragment I have 3 Unit and 1 Integration test, in the test folder:
...ANSWER
Answered 2022-Feb-11 at 10:25First of all, you shouldn't add any specific configuration if you follow the default conventions. Moreover, parameters like src
are not read by the tycho surefire plugin. Moreover, there's no need to create products or features for what you need. The reason why it's not working it's because of a bug:
https://github.com/eclipse/tycho/issues/643
On a side note, I've updated the RELEASE notes https://github.com/eclipse/tycho/pull/641 trying to document better the rationale behind the new goal (but, again, it does not work due to a bug)
QUESTION
I use the following code in order to get the city the iss is flying over. I used the code from the astro-pi tutorial(https://projects.raspberrypi.org/en/projects/code-for-your-astro-pi-mission-space-lab-experiment/2):
...ANSWER
Answered 2022-Feb-07 at 13:34Maurice Meyer helped me solve the issue
QUESTION
I have a animation of an orbit written in python. I want a legend that the label is a time "dt". This time updates (increases) along the orbit. For example, in the first frame of the gif the legend should be "dt", in the second, dt + dt and so on. I tried something that didn't work. Maybe I'm not using the correct commands. The error that appearas: TypeError: __init__() got multiple values for argument 'frames'
. Does someone know how to do this legend? The code is above.
ANSWER
Answered 2022-Jan-13 at 16:25To update the labels in your legend you can use:
QUESTION
I'm trying to create a basic scene with an orbitercontrols that can rotate around the center, i.e. always looking at (0,0,0). I want it to behave like this https://threejs.org/examples/misc_controls_orbit.html exactly. But in my version if I click and drag to the left/right, the camera just spins in a circle always looking at (0,0,0). How can I fix this?
...ANSWER
Answered 2022-Jan-11 at 11:52The code needed several modifications. Use the code below instead and compare it with yours to find out which parts did I change.
QUESTION
ANSWER
Answered 2021-Dec-23 at 02:24Your logic should be something like this. This applies one rotation angle to the distance between the moon and the planet, and another rotation angle to the distance between the planet and the sun.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install Orbit
You can use Orbit like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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