ASCII点阵 16x8 与24x16 Java

news/2024/10/21 7:53:33/

1

字库下载链接：https://download.csdn.net/download/llapton/12910449

.ASCII与汉字寻址公式不同，注意区分，寻址公式如下图
在这里插入图片描述

2

.16x8 ASCII点阵显示，注意这里使用的字库为"ASC16"，注意寻址公式为 offset = ascii * 16

package tools;import org.springframework.core.io.ClassPathResource;import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;public class AsciiPoint {public static void main(String[] args) throws IOException {String str = "B";char[] key = {0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01};int size_step = 8;//16x8的ASCII点阵byte[] cbuf = new byte[16];byte[] bytes = str.getBytes("ASCII");System.out.println(Arrays.toString(bytes));//byte转intint ascii = bytes[0] & 0xff;//计算偏移量int offset = ascii * 16;//读取点阵字库文件，需要按需修改为你电脑上实际字库的绝对地址ClassPathResource classPathResource = new ClassPathResource("ASC16");InputStream inputStream = classPathResource.getInputStream();//跳过offset个字节，读取汉字占用的16个字节inputStream.skip(offset);inputStream.read(cbuf);//按行解析for (int i = 0; i < 16; i++) {for (int j = 0; j < 8; j++) {int index = i * 8 + j;int flag = cbuf[index / size_step] & key[index % size_step];System.out.print(flag > 0 ? "●" : "○");}System.out.println();}}
}

16x8效果：
在这里插入图片描述

3

24x16 ASCII点阵显示，注意这里使用的字库为"ASC24"，注意寻址公式为 offset = （ascii-32） * 16

package tools;import org.springframework.core.io.ClassPathResource;import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;public class AsciiPoint24 {public static void main(String[] args) throws IOException {String str = "t";char[] key = {0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01};int size_step = 8;//24x16的ASCII点阵byte[] cbuf = new byte[48];byte[] bytes = str.getBytes("ASCII");System.out.println(Arrays.toString(bytes));//byte转intint ascii = bytes[0] & 0xff;//计算偏移量int offset = (ascii-32) * 48;//读取点阵字库文件，需要按需修改为你电脑上实际字库的绝对地址ClassPathResource classPathResource = new ClassPathResource("ASC24");InputStream inputStream = classPathResource.getInputStream();//跳过offset个字节，读取汉字占用的16个字节inputStream.skip(offset);inputStream.read(cbuf);//按行解析for (int i = 0; i < 24; i++) {for (int j = 0; j < 16; j++) {int index = i * 16 + j;int flag = cbuf[index / size_step] & key[index % size_step];System.out.print(flag > 0 ? "●" : "○");}System.out.println();}}
}