Topology is the mathematical study of the properties that are preserved through deformations, twistings, and stretchings of objects. Tearing, however, is not allowed. A circle is topologically equivalent to an ellipse (into which it can be deformed by stretching) and a sphere is equivalent to an ellipsoid.
Questions tagged [topology]
377 questions
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Are javascript chart library customizable or compatible with JavaFX
I was wondering if typical javascript topology chart libraries can be easily customized to perform some action when I hover or click on the node object? The libraries I'm currently considering are D3.js, chartjs, and sigma.js and the actions could…
user2799603
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Neural Network Evaluation and Topology
My goal is to solve the XOR problem using a Neural Network. I’ve read countless articles on the theory, proof, and mathematics behind a multi-layered neural network. The theory make sense (math… not so much) but I have a few simple questions…
noodlejs
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Efficient topological data structure for meshes on CUDA?
In a university project my group's task is to implement Mesh Based Surface Tracking on CUDA.
For that, we need a topological data structure for triangular meshes.
In a CPU implementation I would use something like the half-edge or winged-edge data…
maddin45
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Scaling of push events - Best topology?
I've built a TCP server which handles RPC (request/reply) type requests from clients, but it also allows services to push events down at ad-hoc times.
If I need to scale in the future, the RPC stuff is quite easy, like web infrastructure, I'll just…
Jamona Mican
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how to sort objects for Guendelman shock propagation?
This is a question regarding forming a topographical tree in 3D. A bit of context: I have a physics engine where I have bodies and collision points and some constraints. This is not homework, but an experiment in a multi-threading.
I need to sort…
FlavorScape
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Topological sort, recursive, using generators
Data: a dependency list, already verified to be acyclic. So here, 'a' depends on 'b','c' (c depends on d), etc...
A = { 'a' : dict(b=1, c=1),
'c' : dict(d=1),
'd' : dict(e=1,f=1,g=1),
'h' : dict(j=1)
}
I'd like to have a…
Gregg Lind
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How to map Twitter directed-graph/topology?
For my research, I want to use some data that can capture twitter users following each other . I want to represent this relationship in a big directed-graph. If you think about this graph it's probably very huge, I want to generate it and perhaps…
Jun Zhou
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Is it possible to create a network topology diagram using SNMP?
I'm struggling to come up with a topic for my final year project/dissertation at University. I've had an idea but I'm not sure if it's a.) possible and b.) feasible in my timeframe.
My idea is to create a piece of software which uses SNMP to get…
iDemonix
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How do I find all inner cells within a spatial network of nodes?
I have an arbitrary network of nodes. This network could look something like this:
The nodes of this network have spatial positions, so they cannot be moved or re-organized. Each node has an x coordinate, a y coordinate, and a unique ID. I am using…
Laguilhoat
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How to remove "non-closing" edges in CGAL
I have a CGAL Arrangement graph looking like this:
,_____, ,_____, ,_____,
| | | | | |
|-- | | |---| | ---
|_____| |_____| |_____|
I want to remove all the edges that doesn't "close" a polygon like the horizontal…
Hugal31
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Find lldp informations using snmpwalk or another method
I want to build a java tool that extracts lldp informations of some devices (switches, routers, etc) to make a 'topology map'.
Trying snmpwalk, i found only useless informations (for this case).
I think lldp mib is 1.0.8802.1.1.2, but i'm not…
elias
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MongoError: Topology is closed, please connect when making a discord.jsv12 mute command
I've seen many people get the Topology is closed error, but I've never seen a straight answer that doesn't only answer the question for the exact code snippet given, but generally gives an overview of what the topology is and how it works.
I'm…
PrezOfTheUnitedIdiots
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Three.js / jsCAD: how to smooth a mesh normals for an outline effect?
I'm trying to create an outline effect on some 3D meshes using the following method :
Draw the original initial shaded mesh
smooth the mesh normals
push the vertives outward following their normals
draw the back faces only with a solid outline…
Myro
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How to convert a complex polygon into a curve in python?
If I have a list of n points that form a closed, non-intersecting polygon (with each point one after the other creating the n-gon), is it possible to create and define (via parametric functions or something) a curve of sorts? I don't just want a…
PythonMan1029
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How to check if multilinestring really is multilinestring?
I have a huge database with a road network, and the geometry type is MULTILINESTRING. I would like to filter out the MULTILINESTRINGS with topological errors. Both the lines on the left side and on the right side are one-one record, made of two…
588chm
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