dharani811/nestingcshaprt

This is a port Nest4J nesting library written in java which was ported from SVGNEST

This a port of Nesting library written in Java at https://github.com/exacloud/Nest4J

Not complete yet, but basics work.Working on it, will keep you posted.

i/p is XML format

o/p will be generated in SVG format

sample input file is available in bin folder of NestingConsole project.

Sample use case:

                    //create bin
        NestPath bin = new NestPath();
        double binWidth =1000;
        double binHeight = 1000;
        bin.add(0, 0);
        bin.add(binWidth, 0);
        bin.add(binWidth, binHeight);
        bin.add(0, binHeight);

		//read polygons from xml file
        var nestPaths = SvgUtil.transferSvgIntoPolygons("test.xml");

		//default Config, you can customize(please look into Config class)
        Config config = new Config();

		//Init Nesting
        Nest nest = new Nest(bin, nestPaths, config, 2);

		//perform nesting
        List<List<Placement>> appliedPlacement = nest.startNest();

		//convert to svg polygons for viewing in browser
        var svgPolygons =  SvgUtil.svgGenerator(nestPaths, appliedPlacement, binWidth, binHeight);

		//save file onto disk
        SvgUtil.saveSvgFile(svgPolygons, "output.svg");

UseFul Links: https://github.com/exacloud/Nest4J

https://github.com/Jack000/Deepnest

https://github.com/Jack000/SVGnest

nestingcshaprt's Issues

NFP generation

@dharani811 that looks amazing! Thank you for sharing it. I have one question again relating to the NFP generation using Clipper. Do you only use the polygon with the largest area produced by the Minkowski Sum for the NFP (referenced code). Would that not yield inaccurate result in some cases if the input has holes or is concave?

Also, it seems you are using both the sliding method for generating the NFP as well as Minkowski. Is there a reason for this and when do you use which?

Coordinate system transformation

Hello, I want to convert Cartesian coordinate system to mathematical coordinate system, how can I do it?

Placement direction

Placement is prioritizing the Y-axis first then the X-axis. Is it possible to switch this?

Do you accept PR?

Since the last commit of this project is 3 years ago, I'd like to check that if you still accept PR. I reimplement the genetic algorithm based on your implementation.

about curve

I noticed that the information stored in the XML format consists of points. Does this mean that this method can only handle straight-line shapes? Can it handle objects with curves? Also, is there code in the program to generate the input XML file? I want to test it with my own data.

State License Information

Hey there and thanks for porting Nest4J to C#!

I'd like to play around with this library a bit but need port it to dotnet core first and would therefore like to fork the project. I wanted to ask before: Under which license are you providing this? Could you state that somewhere in the project (e.g. Nest4Js MIT License)?

Thanks in advance!