I'm trying to make a maths inspired background image for my computer. What I've decided to do is a visualization of the Collatz Conjecture (video for explanation of the mathematical problem and method of visualization: https://www.youtube.com/watch?v=LqKpkdRRLZw&t=224s). Now I know that there are tons of different cool high resolution images on this very topic but half of the fun in it is making it myself.
So on to the problem. The tree structure is already implemented and took a couple of hours (I'm not a great Java programmer) so what I want to do now is create the actual image. I'm in essence looking for a simple image processing package or even some image processing software that can read information from a .txt file and will let me tell it what to do with it. I want to be able to draw lines, assign widths and colors and chose background colors etc. I had thoughts of doing the entire thing in Matlab instead so if you recommend I do it there I can do that as well. Also python is an option. But to clarify the problem isn't the actual making of the tree but rather the visualization and making a pretty image. Thanks for any help.
EDIT: I just found this (http://marvinproject.sourceforge.net/en/index.html). It seems to do what I want. Is it any good?
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I have written a few C programs that are pretty extensive. I am looking to draw a flow chart/ER Diagram of how the header files are called and which call to which. While I could use Visio and draw this in a few hours, I am looking to make an interactive diagram. I have started one in Python using Imagine Magick but I am wondering whether Java/JavaFX/JavaGraphics would be the best way to go about this task. Any suggestions for the most efficient way to make a program that will draw a diagram of my large scale project?
NOTE: Python has worked thus far and it has drawn a small scale diagram with arrows to each relation but it is slow.
I have a data flow diagram (a diagram that looks like a flow chart). It has a set of specific geometrical components like rectangles, circles, ellipses and arrows.
What I'm trying to achieve is to detect these shapes and be able to know which component is connected to which component (through the lines) and finally read the text inside each one to extract data from the diagram and do further processing. It is also notable to mention that the diagram will not be drawn by hand but computer generated so we don't have to worry about angles and ratios being inaccurate.
I'm currently working in Java and I was wondering if this is going to be possible since Java is not the best language when it comes to image processing (correct me if I'm wrong). And if it's possible I'd you guys to point out where I should start looking.
I think Java is fine, and it has many libraries to process images. ImageJ is just one example. Personally, I like to use Python, so I write scripts in this language using Java API of the DMelt platform. Look at the documentation of this projecst, wiki. Here is a link to a few examples.
Doing this in Java wasn't a great idea because mainly the lack of online resources. After a good amount of research, I found that the best and the easiest approach was the use of C# and Emgu CV which is a cross platform .Net wrapper to the OpenCV image processing library.
This example helped me to get started with detecting basic geometrical shapes like Lines, Rectangles and Triangles.
I have to make a Java program that gets XML files with simple snippets of code from several programming languages and draws them into a flowchart and makes it into a JPEG/PNG image, now I know it must be possible to do this but so far I haven't found anything to help me figure out how I can make Java draw an image and make it into a JPEG.
Is there any library I can use? A tutorial on this? Anything?
I've an issue with drawing an image histogram. I would like to create simple image histogram with basic adjustments. The problem is if there are simple libraries/sdk that could help achieve this. The technology does not matter. I've found that matlab has a lot of image/graph processing tools but it is still kid of "inaccessible" due to the tools. Java/Javascript/python/c# would be great so that I've tagged this question.
AFAIK we can take as eg. RGB components to draw histograms and there would be great if those library would allow to adjust them and in response process the image. I think what I'm looking for is often used in every tool working with graphics.
thx
For python you have matplotlib (http://matplotlib.org/index.html) , it's quite easy and very similar to matlab
So, I realize this might not be the right site, but I didn't think it would be respectful to ask it on the WorldWind forums. If it should be somewhere else, please let me know.
Anyways...
I have this Java application that currently uses WorldWind to display a globe and place bitmaps corresponding to an item's location. WorldWind was initially picked for the project as an alternative to Google's product and because it had the "3D" effect. However, requirements change, and the 3D Globe is no longer necessary. (Also, WorldWind was a little heavy for the project - we found out that we would really like just a 2 color version if possible.)
My question to you all is:
What would you suggest as an alternative to WorldWind? I'm looking for just a "flat" map (or even just an image of the world...) that is zoomable, and is possible to layer objects on top of it (and those objects can move over time).
I have not really done much with map/image programming so please take that into consideration when replying :)
Have you checked out GeoTools? I believe it should be more than capable for what you are trying to do, though like WorldWind, the actual content is what contributes to things like color and such. Check out the quickstart which even includes some sample shapefile content, and has an example of an application which displays the shapefile content in a map frame. You may have to get your hands a bit dirty to play with geo-referenced bitmaps, though...
EDIT: I also found this on the Google: JXMapViewer
(just for the record, WorldWind has a "FlatMap" option)