I am grouping nodes together and laying them out evenly around the circumference of a circle. I would then like to be able to remove a group of nodes, recalculate the positions of the nodes on the circle and animate them to their new positions using d3.js version 4 of the force simulation. I have this partially working but i can't seem to figure out why when i remove the nodes and recalculate the new co-ordinates they do not move to their new positions. I am hoping someone can help. I'm new to d3.js so it's probably something fairly fundamental but as this is the latest version of the api and the force layout has changed quite a bit there's not a lot of examples (that i can find) out there in the wild.
I have linked to a jsbin of the partially working example below
https://jsbin.com/yetifunoso/4/edit?html,js,output
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Quite new with d3 but have been stuck on this for several weeks and figured I'd ask here
I've been trying to create a radial/flare tree using React-Flow but I'm having a really hard time with positioning the nodes. I need to use React-Flow because I'd like to use custom React components instead of the standard SVG nodes from d3 since I need a higher fidelity interaction with the nodes.
Essentially I'm looking for something like this attached image but using React-Flow:
Source: https://observablehq.com/#d3/radial-tree
I don't even need the radial curve lines- it's more of a nice to have. As long as I can get the nodes in the correct circular position, even straight lines are fine.
Would love any advice :)
Here's what I've got so far:
https://codesandbox.io/s/trusting-leavitt-b8uxi9-rf-expand-collapse-forked-fh71v8?file=/src/App.tsx:948-954
It's the collapsible tree example that the React-Flow devs gave on their website
The closest example of a radial tree using d3 using v4 or above is this: https://medium.com/analytics-vidhya/creating-a-radial-tree-using-d3-js-for-javascript-be943e23b74e
I'm trying to apply the logic that the author used in their example but the nodes aren't positioning correctly, probably due to my shallow understanding of how to use d3
There are a few other examples on here/codepen that creates a radial tree using d3 but they're all v3 or below and are focused around using SVGs as the nodes
I've also seen other radial trees from other React libraries like this: https://codesandbox.io/s/ov2jokvl1z
But they all use SVG nodes which won't work for me because I'd like to use React nodes within the graph
I made an app that detects objects occupying the smartphone camera and now I want to draw the bounding boxes.
I've seen more than one way to do it and so far I'm planning to use the react-native-canvas library or to create a button in form of a bounding box located in the corresponding coordinates, but I'm wondering what the least resource-intensive solution would be.
This is because object detection already takes up a lot of resources and now I am going to add a function that draws bounding boxes several times per second, so I will surely have to lower the detections per second, but the ideal would be to lower them as little as possible. This is one of those situations where a few fractions of a second will be significant in performance.
I'm pretty new to react native so I need some help finding the optimal solution.
For example plotting buttons without installing an external library and that might work faster, I'm not sure if that makes sense.
Hopefully somebody can point me in the right direction.
Thanks.
I am playing with candlestick graphs (example from here: https://apexcharts.com/javascript-chart-demos/candlestick-charts/basic/) everything work as expected.
However, I am struggling with adding my signal data for a visual representation of the graph.
I am unable to find a solution that works I was thinking I can somehow fine-tune a timeline - I tried chart.js/apexcharts and for now, I believe the closest will be with the second framework.
What I need is a bar chart that can be used in numeric ranges for the X and Y-axis as presented below. (the goal is to be able to add the green bar as presented)
Is there an easy win or an idea of how to approach this?
Is there something I am missing?
That is my current solution (line graphs with stopWin/stopLose and entry price).
Still suboptimal - but works and is easy to achieve.
After weeks of playing around with it - the solution stayed:
I got two instances of apexcharts one with candlestick and one with line graphs
they are in a single div with CSS playground and position absolute.
I am passing standardised min/max values and has to have the same amount of elements in them (line graphs are allowing You to add null values which allow using this solution.
The final version work is repeatable and looks good.
if you need some help in similar case - feel free to reach out ;)
New developer here working on some thing that's a little out of my depth.
I'd like to have dynamically generated charts into rotate into different, predetermined locations on my page.
for example:
chart 1
chart 2
chart 3
would rotate thru a list of 5 charts to display
chart 2
chart 3
chart 4
I feel like my best option here is to create objects (JSON maybe?) of these charts and to have them stored in an array, then have the array loop through the binding locations and 'plop' (for lack of better word) the object's details into the next spot in the rotation, which theoretically would allow the chart to render in the new location; with a timer driving the changes.
I would probably use pre-set frames to designate the slots being rotated into, though I'm less positive that is the right way to handle that.
I know this is possible with angular, and despite my best efforts I cannot for the life of me determine the best way to go about this. I'm really very open as to the method this gets done, but am at a complete loss on how to set up the data-binding framework to accomplish this.
I am working on an interactive WPF graph/tree tool and have nodes and links between them placed in a canvas. The nodes are usercontrols and the links are simply Line shapes, and currently the links go from the centre of a node to another node's centre.
The problem arise when I want the nodes to be slightly transparent and one sees the links behind the nodes.
I figured the most convenient solution would be to apply clipping or opacitymask to the lines, so they are not drawn behind the nodes, but I can't for the life of me figure out how?
Basically I can't figure out a bounding box geometry from the nodes to use as a clipping geometry for the lines. I am also interested in alternative solutions, of course!
It would seem to me like you're overthinking the solution. Why not just change the logic for the links so that the lines begin/end at the correct side of the node instead of starting from the center??? You should only need to do a little more math to accomplish this.
That said, to get the bounding box of a Visual you can use the VisualTreeHelper::GetContentBounnds helper method.
The VisualTreeHelper.GetContentBounds() method seems to return Empty everytime.
An alternative solution to this problem is answered at
Connecting two WPF canvas elements by a line, without using anchors?
that uses bounding boxes to find intersection points to draw the lines from/to.
We worked on something similar and our solution was to put links and nodes on different layers.
So if you want the nodes to appear above the links and the tips of the links to be hidden by the nodes, you just change the z-order of the layers so that the nodes layer is in front of the links-layer.
As layers we used VisualHosts (you find a VisualHost class here) an our node and link objects were DrawingVisuals.
Works fine and you don't need to hassle about finding the borders of your nodes etc.