Curve.cpp

#include "Curve.h"

namespace nV {
	namespace Graphics {
        Curve::Curve() : spx(0),
                         spy(0),
                         xmin(0),
                         xmax(0),
                         ymin(0),
                         ymax(0),
                         dataNum(0)
        {
			lineStrips.clear();
			isColorfulCurve = false;
			singularity = false;
            WithDomain = false;
			uninitsingularityset();
            uninitdomain();
		}

		Curve::Curve(ArrayList<Point2d*> v) {
			lineStrips.clear();
			LineStrip* lineStrip = new LineStrip;
			for (unsigned int i = 0; i < v.size(); i++)
				lineStrip->vert.add(v[i]);
			lineStrips.add(lineStrip);
			isColorfulCurve = false;
            singularity = false;
            WithDomain = false;
			uninitsingularityset();
            uninitdomain();
		}

		Curve::~Curve() {
			for (unsigned int i = 0; i < lineStrips.size(); i++) {
				for (unsigned int j = 0; j < lineStrips[i]->vert.size(); j++) {
					delete lineStrips[i]->vert[j];
				}
				for (unsigned int j = 0; j < lineStrips[i]->color.size(); j++) {
					delete lineStrips[i]->color[j];
				}
				delete lineStrips[i];
			}
			lineStrips.clear();
			uninitsingularityset();
            uninitdomain();
		}

		Color* Curve::getRainbowColor(double x) {
			double red = 0;
			double green = 0;
			double blue = 0;
			if (x <= 63.0 / 255) {
				x = 4 * (x - 0);
				blue = 1;
				green = x;
			} else if (x <= 127.0 / 255) {
				x = 4 * (x - 64.0 / 255);
				green = 1;
				blue = 1 - x;
			} else if (x <= 191.0 / 255) {
				x = 4 * (x - 128.0 / 255);
				green = 1;
				red = x;
			} else {
				x = 4 * (x - 192.0 / 255);
				red = 1;
				green = 1 - x;
			}
			if (red > 1)
				red = 1;
			if (red < 0)
				red = 0;
			if (green > 1)
				green = 1;
			if (green < 0)
				green = 0;
			if (blue > 1)
				blue = 1;
			if (blue < 0)
				blue = 0;
			red *= 255;
			green *= 255;
			blue *= 255;
			return new Color(static_cast<int>(red), static_cast<int>(green), static_cast<int>(blue));
		}
	}
}