java读取txt中的两点坐标计算距离有一txt设为xyz.txt 里
java读取txt中的两点坐标计算距离
有一txt设为xyz.txt,里面含有A,B的xyz坐标,问要读该txt文件并计算出AB距离,求解!谢谢!
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// 公式 d=√[(x1-x2)^2+(y1-y2)^2+(z1-z2)^2]
BufferedReader reader = null;
String r = "";
int aX = 0; // A点X坐标
int aY = 0; // A点Y坐标
int aZ = 0; // A点Z坐标
int bX = 0; // B点X坐标
int bY = 0; // B点Y坐标
int bZ = 0; // B点Z坐标
float d = 0;// 距离
try {
reader = new BufferedReader(new FileReader("D:/xyz/xyz.txt"));
r = reader.readLine();
while (null != r) {
if ("A".equals(r)) {// A点XYZ
aX = Integer.parseInt(reader.readLine());
aY = Integer.parseInt(reader.readLine());
aZ = Integer.parseInt(reader.readLine());
} else {// B点XYZ
bX = Integer.parseInt(reader.readLine());
bY = Integer.parseInt(reader.readLine());
bZ = Integer.parseInt(reader.readLine());
}
r = reader.readLine();
}
} catch (IOException e) {
e.printStackTrace();
}
// 计算两点距离
d = (float) Math.sqrt((aX - bX) ^ 2 + (aY - bY) ^ 2 + (aZ - bZ) ^ 2);
System.out.println(d);