package stl;

/**
 *  This program shows the basic shapes for 3D print
 * @author do_hoang
 * @version 1.3 2020-02-11
 */

public class StlImage {

    private double minThick;
    private double thickScale;
    private double scale;
    private double maxValue;

    public StlImage (double min, double max){
        this.minThick = min;
//      this.maxValue = max;
        this.thickScale = max - min;
        this.scale = 0.1;
    }
    public Solid createSolid(int[][] matrix) {
        Solid solid = new Solid();
        //find the maximum value in the integer array, store it in maxValue

        for(int i = 0; i < matrix.length; i++) {
            for(int j = 0; j < matrix[i].length; j++) {
                if(matrix[i][j] >= maxValue) {
                    maxValue = matrix[i][j];

                }
            }
        }
        for(int i = 0; i < matrix.length-1; i++) {
            for(int j = 0; j < matrix[i].length-1; j++) {
                //top
                solid.addFacet(
                createIfsVertex(i, j, matrix[i][j]),
                createIfsVertex(i+1, j,   matrix[i+1][j]),
                createIfsVertex(i+1, j+1, matrix[i+1][j+1]),
                createIfsVertex(i,   j+1, matrix[i][j+1]));
            }
        }
        int width = matrix.length;
        int length = matrix[0].length;
        //side1
        //add the four Vertex to Solid using addFacet
        solid.addFacet(
                new Vertex(0, 0, 0),
                new Vertex(width * scale, 0, 0),
                new Vertex(width * scale, 0, minThick),
                new Vertex(0, 0, minThick));
    //side2
        //add the four Vertex to Solid using addFacet
        solid.addFacet(
                new Vertex(0, length * scale, 0),
                new Vertex(0, 0, 0),
                new Vertex(0, 0, minThick),
                new Vertex(0, length * scale, minThick));
    //side3
        //add the four Vertex to Solid using addFacet
        solid.addFacet(
            new Vertex(width * scale, 0, 0),
            new Vertex(width * scale, length * scale, 0),
            new Vertex(width * scale, length * scale, minThick),
            new Vertex(width * scale, 0, minThick));
    //side4
        //add the four Vertex to Solid using addFacet
        solid.addFacet(
            new Vertex(width * scale, length * scale, 0),
            new Vertex(0, length * scale, 0),
            new Vertex(0, length * scale, minThick),
            new Vertex(width * scale, length * scale, minThick));
    //bottom
        //add the four Vertex to Solid using addFacet
        solid.addFacet(
            new Vertex(0, 0, 0),
            new Vertex(0, length * scale, 0),
            new Vertex(width * scale, length * scale, 0),
            new Vertex(width * scale, 0, 0));
        return solid;

    }
    private Vertex createIfsVertex(double x, double y, double z) {
        //calculate the thickness based on the following formula
        double thickness = minThick + thickScale * Math.sqrt(z/maxValue);
        //create a new Vertex with the following value
        return new Vertex(x * scale, y * scale, thickness);
    }
}