140 lines
3 KiB
Java
140 lines
3 KiB
Java
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import java.awt.*;
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import algebra.*;
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/**
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* The Fragment class represents an attributed 'pixel' as generated
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* by a Rasterizer.
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*
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* @author cdehais
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*/
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public class Fragment {
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private int x;
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private int y;
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private int numAttributes;
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/*
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* attributes placement:
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* 0: depth
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* 1-3: color
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* 4-6: normal
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* 7-8: (u,v) texture coordinates
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*/
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double[] attributes;
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public Fragment(int x, int y) { // int numAdditionalAttributes) {
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this.x = x;
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this.y = y;
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numAttributes = 9;
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attributes = new double[numAttributes];
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}
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public int getNumAttributes() {
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return numAttributes;
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}
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/**
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* Gets a scalar attribute at index.
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*/
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public double getAttribute(int index) {
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return attributes[index];
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}
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/**
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* Gets a vector attribute at the given starting location and with the given
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* dimension.
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*/
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public double[] getAttribute(int index, int dimension) {
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double[] attr = new double[dimension];
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for (int i = 0; i < dimension; i++) {
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attr[i] = attributes[index + i];
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}
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return attr;
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}
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public void setAttribute(int index, double value) {
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attributes[index] = value;
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}
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/**
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* Gets the x pixel coordinate of the Fragment
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*/
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public int getX() {
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return x;
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}
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/**
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* Gets the y pixel coordinate of the Fragment
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*/
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public int getY() {
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return y;
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}
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/**
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* Gets the pixel coordinates (x, y) of the Fragment as a size 2 array
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*/
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public int[] getPosition() {
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int[] position = new int[2];
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position[0] = x;
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position[1] = y;
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return position;
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}
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public void setPosition(int x, int y) {
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this.x = x;
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this.y = y;
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}
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public double getDepth() {
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return attributes[0];
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}
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public void setDepth(double z) {
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attributes[0] = z;
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}
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public Vector3 getNormal() {
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return new Vector3(attributes[4], attributes[5], attributes[6]);
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}
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public void setNormal(Vector normal) {
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attributes[4] = normal.get(0);
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attributes[5] = normal.get(1);
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attributes[6] = normal.get(2);
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}
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public void setNormal(double nx, double ny, double nz) {
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attributes[4] = nx;
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attributes[5] = ny;
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attributes[6] = nz;
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}
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public Color getColor() {
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int r = (int) Math.min(255, Math.max(255 * attributes[1], 0));
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int g = (int) Math.min(255, Math.max(255 * attributes[2], 0));
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int b = (int) Math.min(255, Math.max(255 * attributes[3], 0));
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return new Color(r, g, b);
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}
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public void setColor(Color color) {
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attributes[1] = color.getRed();
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attributes[2] = color.getGreen();
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attributes[3] = color.getBlue();
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}
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public void setColor(double r, double g, double b) {
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attributes[1] = r;
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attributes[2] = g;
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attributes[3] = b;
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}
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public String toString() {
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return "(" + x + "," + y + ")";
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}
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}
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