I am trying to visualize the input I am getting from a joystick on a simple XY Graph in Simulink. I can display the values of the various axes easily using the Scope. However I want to display the X and Y values from the joystick as a dot moving around in real time on a graph or animation or whatever. If there is a better / easier way to do this, maybe with something else then Simulink, then please let me know.
Please check if the XY Graph block serves your purpose. You can see the documentation in the following link :
https://www.mathworks.com/help/simulink/ug/plot-circle-with-xy-graph.html
You can also refer the following if you could log the signals in Simulation Data Inspector:
https://www.mathworks.com/help/simulink/ug/visualize-simulation-data-on-an-xy-plot.html
All the best!
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I want to show multiple curves in a single graph of a webpage.
Like I want to show the values where value=4,these values will give a curve then in the same graph i want to draw the values where something's value=6..
How can I do this in Laravel??Can anyone give any tutorial of it or tell me the way??
Thanks in advance.
I have a code that lets users enter data and plots it with a tube geometry. The code seems to work fine most of the time, however, one of the test data sets is not coloring properly.
Here is an example page for a site that I am building that solves for the position and velocity of a bungee jumper. Scroll to the bottom of the page and you will see a three js environment with a sin wave and a plot of the position of the jumper. These two items are charted with separate color maps and you can see that the sin wave is colored properly but the data is not.
At first I thought that maybe the data was too sparsely populated, but that was not the problem.
The code for this is too long to really paste here, but the fact that it charts right for all other data sets makes me think that I am missing something inherent to the tubeGeometry function.
Any ideas as to why the one tube is miscolored?
UPDATE: When I add additional interpolated points between each existing point in the data set, the error lessons. The more the padding, the less the error. This leads me to think that the error is due to the difference between the interpolation of the spline function from Three.SplineCurve3 and the true data. This would also explain why my other examples work fine since they are all sinusoid data.
How can I prevent SplineCurve3 from doing this, or what else can I use to create the Tube geometry?
I guess it is the mesh length counting problem (three did not count length on vector+vector+vector but by mesh.position+bounding radius)
Maybe you can separate curve to parts and color each part independent on their lenght.
There are some working approaches:
https://stemkoski.github.io/Three.js/Graphulus-Curve.html
https://stemkoski.github.io/Three.js/Graphulus-Surface.html
https://stemkoski.github.io/Three.js/Graphulus-Function.html
I have two path elements. For the sake of description lets just say one is a heart and the other is a square with rounded corners.
I'm trying to get one to interpolate into the other like this:
http://raphaeljs.com/animation.html
This is easy enough to do but I need to do it based off the elements X position and not time.
So as I drag the path element between an Xval of 100 and 200 it will slowly morph into the second path until it finally completes the transformation at an X value of 200.
Does anyone have any idea how I might do this?
I'd use the drag handler (or you could bind to the mousemove event and feed the coordinates in as well) and use that to move between a starting position and a target animation based on the x or y coordinate and using Element.status. Check out the fiddle (based on yours):
And I'm sorry -- I gave you a copy of your own fiddle back originally. Terribly poor form =( Try this one instead:
http://jsfiddle.net/kevindivdbyzero/MqFkP/2/
So far this is what I have come up with:
http://jsfiddle.net/jocose/CkL5F/139/
This works but relies on a delay which I am afraid is going to break on slower machines, and plus it seams really hacky. If anyone knows of a better solution please let me know.
I am trying to visualize a river flow- basically, should be able to visualize river current direction and speed based on an user-defined external parameter. This is required to demonstrate vectors in two dimensions- given education needs, animation quality can be minimal- 'tolerable enough'.
I tried a simplistic approach by a blue background with lines indicating currents- comes out very weak and below my low standards!!
Can someone point out a good example/ approach for achieving the same? Thanks.
You can create an image filter that looks like water. Look at Jerry's image filters. Specifically look at the the caustic filter. You could animate it moving from one end of the river to the other end. You can also experiment with varying the time parameter. Since it's open source, you can translate it to other languages.
Here are some links to 3d visualizations.
I'm trying to build something like the Liquify filter in Photoshop. I've been reading through image distortion code but I'm struggling with finding out what will create similar effects. The closest reference I could find was the iWarp filter in Gimp but the code for that isn't commented at all.
I've also looked at places like ImageMagick but they don't have anything in this area
Any pointers or a description of algorithms would be greatly appreciated.
Excuse me if I make this sound a little simplistic, I'm not sure how much you know about gfx programming or even what techniques you're using (I'd do it with HLSL myself).
The way I would approach this problem is to generate a texture which contains offsets of x/y coordinates in the r/g channels. Then the output colour of a pixel would be:
Texture inputImage
Texture distortionMap
colour(x,y) = inputImage(x + distortionMap(x, y).R, y + distortionMap(x, y).G)
(To tell the truth this isn't quite right, using the colours as offsets directly means you can only represent positive vectors, it's simple enough to subtract 0.5 so that you can represent negative vectors)
Now the only problem that remains is how to generate this distortion map, which is a different question altogether (any image would generate a distortion of some kind, obviously, working on a proper liquify effect is quite complex and I'll leave it to someone more qualified).
I think liquefy works by altering a grid.
Imagine each pixel is defined by its location on the grid.
Now when the user clicks on a location and move the mouse he's changing the grid location.
The new grid is again projected into the 2D view able space of the user.
Check this tutorial about a way to implement the liquify filter with Javascript. Basically, in the tutorial, the effect is done transforming the pixel Cartesian coordinates (x, y) to Polar coordinates (r, α) and then applying Math.sqrt on r.