我需要一个将在等轴测投影中绘制的立方体，之后我需要它来转动他的一个轴（例如Z），这是我的source，我无法理解如何使用{{ 1}}旋转立方体的方法。
答案 0 :(得分：2)
我查看了你的代码中的“一些”（如下所示），是的，你需要为游戏循环使用Swing Timer。此外，您还需要在JPanel的paintComponent方法中绘图，而不是绘制方法。
代码：
import javax.swing.*;
import java.util.Timer;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.Line2D;
import java.awt.geom.Rectangle2D;
import javax.swing.JFrame;
import javax.swing.JPanel;
import java.lang.Object;
import java.lang.Math;
class Matrix {
public double[][] times(double[][] A, double[][] B) {
if (A[0].length == B.length) {
int i, j, k;
int m = A.length;
int n = A[0].length;
int q = B[0].length;
double[][] C;
double[] e;
C = new double[m][q];
e = new double[n];
for (i = 0; i <= m - 1; i++) {
// System.out.println();
for (k = 0; k <= q - 1; k++) {
for (j = 0; j <= n - 1; j++) {
e[j] = A[i][j] * B[j][k];
C[i][k] = C[i][k] + e[j];
}
// System.out.print(C[i][k]+" ");
}
}
// System.out.println(m+"@"+n+"@"+q);
return C;
} else {
throw new RuntimeException("Illegal matrix dimensions.");
}
}
// This method calculates the coordinates of Cube's dots
public double[][] dots(double[] angle, String dot) {
double[][] turnX = {
{ 1, 0, 0 },
{ 0, Math.cos(Math.toRadians(angle[0])),
(-1 * (Math.sin(Math.toRadians(angle[0])))) },
{ 0, Math.sin(Math.toRadians(angle[0])),
Math.cos(Math.toRadians(angle[0])) } };
double[][] turnY = {
{ Math.cos(Math.toRadians(angle[1])), 0,
Math.sin(Math.toRadians(angle[1])) },
{ 0, 1, 0 },
{ (-1 * (Math.sin(Math.toRadians(angle[1])))), 0,
Math.cos(Math.toRadians(angle[1])) } };
double[][] turnZ = {
{ Math.cos(Math.toRadians(angle[2])),
(-1 * (Math.sin(Math.toRadians(angle[2])))), 0 },
{ Math.sin(Math.toRadians(angle[2])),
Math.cos(Math.toRadians(angle[2])), 0 }, { 0, 0, 1 } };
double[][][] dots = { { { 0 }, { 0 }, { 0 } }, { { 0 }, { 100 }, { 0 } },
{ { 100 }, { 100 }, { 0 } }, { { 100 }, { 0 }, { 0 } },
{ { 100 }, { 0 }, { 100 } }, { { 0 }, { 0 }, { 100 } },
{ { 0 }, { 100 }, { 100 } }, { { 100 }, { 100 }, { 100 } } };
double[][] oMat = { { 1, 0, 0 }, { 0, 1, 0 }, { 0, 0, 0 } };
double[][] am = { { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 } };
Matrix mx = new Matrix();
if (angle[0] != 0 || angle[1] != 0 || angle[2] != 0) {
if (angle[0] != 0 && angle[1] != 0 && angle[2] != 0) {
double[][] res = mx.times(turnX, turnY);
am = mx.times(res, turnZ);
} else if (angle[0] != 0 && angle[1] != 0 && angle[2] == 0) {
am = mx.times(turnX, turnY);
} else if (angle[0] != 0 && angle[1] == 0 && angle[2] != 0) {
am = mx.times(turnX, turnZ);
} else if (angle[0] != 0 && angle[1] == 0 && angle[2] == 0) {
am = turnX;
} else if (angle[0] == 0 && angle[1] != 0 && angle[2] != 0) {
am = mx.times(turnY, turnZ);
} else if (angle[0] == 0 && angle[1] != 0 && angle[2] == 0) {
am = turnY;
} else if (angle[0] == 0 && angle[1] == 0 && angle[2] != 0) {
am = turnZ;
}
if (dot == "a") {
double[][] A3d = mx.times(am, dots[0]);
double[][] A = mx.times(oMat, A3d);
return A;
} else if (dot == "b") {
double[][] B3d = mx.times(am, dots[1]);
double[][] B = mx.times(oMat, B3d);
return B;
} else if (dot == "c") {
double[][] C3d = mx.times(am, dots[2]);
double[][] C = mx.times(oMat, C3d);
return C;
} else if (dot == "d") {
double[][] D3d = mx.times(am, dots[3]);
double[][] D = mx.times(oMat, D3d);
return D;
} else if (dot == "e") {
double[][] E3d = mx.times(am, dots[4]);
double[][] E = mx.times(oMat, E3d);
return E;
} else if (dot == "f") {
double[][] F3d = mx.times(am, dots[5]);
double[][] F = mx.times(oMat, F3d);
return F;
} else if (dot == "g") {
double[][] G3d = mx.times(am, dots[6]);
double[][] G = mx.times(oMat, G3d);
return G;
} else if (dot == "h") {
double[][] H3d = mx.times(am, dots[7]);
double[][] H = mx.times(oMat, H3d);
return H;
} else {
throw new RuntimeException("Illegal dot name.");
}
} else {
throw new RuntimeException("Zero angles.");
}
}
}
class Paint extends JPanel {
public void paint(Graphics g) {
// Angles { X , Y , Z}
double[] angle = { 35.264, 45, 0 };
Matrix mx = new Matrix();
double[][] A = mx.dots(angle, "a");
double[][] B = mx.dots(angle, "b");
double[][] C = mx.dots(angle, "c");
double[][] D = mx.dots(angle, "d");
double[][] E = mx.dots(angle, "e");
double[][] F = mx.dots(angle, "f");
double[][] G = mx.dots(angle, "g");
double[][] H = mx.dots(angle, "h");
Dimension size = getSize();
int w = (size.width) / 2;
int t = (size.height) / 2;
Graphics2D g2 = (Graphics2D) g;
super.paint(g);
for (int i = 0; i <= 360; i++) {
angle[2] = i;
g2.draw(new Line2D.Double((w + A[0][0]), (t + (-1 * (A[1][0]))),
(w + B[0][0]), (t + (-1 * (B[1][0])))));
g2.draw(new Line2D.Double((w + B[0][0]), (t + (-1 * (B[1][0]))),
(w + C[0][0]), (t + (-1 * (C[1][0])))));
g2.draw(new Line2D.Double((w + C[0][0]), (t + (-1 * (C[1][0]))),
(w + D[0][0]), (t + (-1 * (D[1][0])))));
g2.draw(new Line2D.Double((w + D[0][0]), (t + (-1 * (D[1][0]))),
(w + A[0][0]), (t + (-1 * (A[1][0])))));
g2.draw(new Line2D.Double((w + A[0][0]), (t + (-1 * (A[1][0]))),
(w + F[0][0]), (t + (-1 * (F[1][0])))));
g2.draw(new Line2D.Double((w + B[0][0]), (t + (-1 * (B[1][0]))),
(w + G[0][0]), (t + (-1 * (G[1][0])))));
g2.draw(new Line2D.Double((w + C[0][0]), (t + (-1 * (C[1][0]))),
(w + H[0][0]), (t + (-1 * (H[1][0])))));
g2.draw(new Line2D.Double((w + D[0][0]), (t + (-1 * (D[1][0]))),
(w + E[0][0]), (t + (-1 * (E[1][0])))));
g2.draw(new Line2D.Double((w + E[0][0]), (t + (-1 * (E[1][0]))),
(w + F[0][0]), (t + (-1 * (F[1][0])))));
g2.draw(new Line2D.Double((w + F[0][0]), (t + (-1 * (F[1][0]))),
(w + G[0][0]), (t + (-1 * (G[1][0])))));
g2.draw(new Line2D.Double((w + G[0][0]), (t + (-1 * (G[1][0]))),
(w + H[0][0]), (t + (-1 * (H[1][0])))));
g2.draw(new Line2D.Double((w + H[0][0]), (t + (-1 * (H[1][0]))),
(w + E[0][0]), (t + (-1 * (E[1][0])))));
// Timer timer = new Timer(100);
// timer.start();
try {
Thread.sleep(10);
} catch (InterruptedException ie) {
}
this.repaint();
// setFocusable(true);
}
}
}
public class Cube {
public static void main(String[] args) {
JFrame frame = new JFrame("Malakhovskyi BS11-01");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new Paint());
frame.pack();
frame.setSize(640, 480);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
}