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java - 如何循环 8*1 svg 图像(由 java 生成)以获得 8*8 svg 图像？

In lại 作者：行者123 更新时间：2023-11-30 11:04:12 31 4
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import java.util.Random;

class svg{
    public static void main(String[] args){
        String f="\""; //use f to stand for \" in order to avoid confusing when writing svg codes.
        System.out.format("\n", f,f,f,f);
        System.out.format("\n",f,f,f,f);
        System.out.format("\n",f,f,f,f,f,f,f,f);
        verticleAliens();
        System.out.println("");
    }



    public static void verticleAliens(){
        String f="\"";
        for(int i=0; i<=800; i+=100){
            String randomColor1 = color();
            String randomColor2 = color();
            String randomColor3 = color();
            String randomColor4 = color();
            String randomColor5 = color();
            String randomColor6 = color();
            String randomColor7 = color();

            System.out.format("\n", f,f,f,60+i,f,f,f,f,f,f,f,f,f);
            System.out.format("\n", f,f,f,50+i,f,f,f,f,30+i,f,f,f,f,f);
            System.out.format("\n", f,f,f,60+i,f,f,f,f,50+i,f,f,f,f,f);
            System.out.format("\n", f,f,f,15+i,f,f,f,f,f);
            System.out.format("\n\n",f,f,f,10+i,f,f,f,f,f,f,f);
        }
    }

    public static String color(){
        Random randomGenerator = new Random();
        int r = randomGenerator.nextInt(256);
        int g = randomGenerator.nextInt(256);
        int b = randomGenerator.nextInt(256);
        return String.format("#%02x%02x%02x",r,g,b);
    }
}

这些Java代码可以生成一个连续有8个不同“外星人”的svg图片，图片如下:

nhập mô tả hình ảnh ở đây

如你所愿，这张 svg 图片有 8*1 个不同的外星人。但我想得到一个 8*8 的外星人 svg 图像(外星人应该在水平方向上有相同的颜色图案)。我如何编写循环来实现这一点(或者，我如何修改我的 for 循环)？谢谢!

注意:如果您想在您的计算机上尝试这些代码，您可以使用java svg>aliens.svg 生成一个名为

的svg 文件

aliens.svg

编译程序后。然后在浏览器中打开它。

1 Câu trả lời

@Manuel_Jain 给了我一个非常有用的建议，我可以编写两个嵌套循环来解决我的问题。这是更新后的代码:

import java.util.Random;

class svg{
    public static void main(String[] args){
        //use slashQuote to stand for \" in order to avoid confusing when modifying svg codes.
        String slashQuote="\"";
        System.out.format("\n", 
            slashQuote,slashQuote,slashQuote,slashQuote);
        System.out.format("\n",
            slashQuote,slashQuote,slashQuote,slashQuote);
        System.out.format("\n",
            slashQuote,slashQuote,slashQuote,slashQuote,slashQuote,slashQuote,slashQuote,slashQuote);
        aliens();
        System.out.println("");
    }


    //Most of works were done in this function. It prints all aliens.
    public static void aliens(){
        //use slashQuote to stand for \" in order to avoid confusing when modifying svg codes.
        String slashQuote="\"";

        //This loop generates different aliens (because of randomColor) verticlely. It is looping 1*8 aliens to get 8*8 aliens. 
        for(int i=0; i<=800; i+=100){

            //get 7 colors by calling color() function for 7 times. The number is 7 because there will be 7 different color in one alien.
            String randomColor1 = color();
            String randomColor2 = color();
            String randomColor3 = color();
            String randomColor4 = color();
            String randomColor5 = color();
            String randomColor6 = color();
            String randomColor7 = color();

            //This loop generates identicle aliens horizontaly. It is looping a 1*1 alien to get 1*8 aliens.
            //It will not affected by "String randomColorN = color();" because I only defined colors in outer loop.
            for(int j=0;j<=800;j+=100){
                //Here is my alien!!!!!!!!!!!!!!!!!!!!!
                System.out.format("
                    "%s stroke-width=%s3%s fill=%s"+randomColor2+"%s />\n", 
                    slashQuote,50+j,slashQuote,slashQuote,60+i,slashQuote,slashQuote,slashQuote,slashQuote,
                    slashQuote,slashQuote,slashQuote,slashQuote,slashQuote,slashQuote,slashQuote,slashQuote);

                System.out.format("
                    "%s stroke-width=%s5%s />\n", 
                    slashQuote,50+j,slashQuote,slashQuote,50+i,slashQuote,slashQuote,50+j,slashQuote,
                    slashQuote,30+i,slashQuote,slashQuote,slashQuote,slashQuote,slashQuote);

                System.out.format("
                    "%s stroke-width=%s3%s />\n", 
                    slashQuote,40+j,slashQuote,slashQuote,60+i,slashQuote,slashQuote,20+j,slashQuote,
                    slashQuote,50+i,slashQuote,slashQuote,slashQuote,slashQuote,slashQuote);
                System.out.format("\n", 
                    slashQuote,36+j,slashQuote,slashQuote,15+i,slashQuote,slashQuote,slashQuote,slashQuote,slashQuote);
                System.out.format("
                    ";stroke-width:3;stroke:"+randomColor7+"%s/>\n\n",
                    slashQuote,40+j,slashQuote,slashQuote,10+i,slashQuote,slashQuote,slashQuote,slashQuote,
                    slashQuote,slashQuote,slashQuote);
            }
        }
    }

    //Generate a random number.
    public static String color(){
        Random randomGenerator = new Random();
        int r = randomGenerator.nextInt(256);
        int g = randomGenerator.nextInt(256);
        int b = randomGenerator.nextInt(256);
        /*#%02x%02x%02x converts the RGB color to the hexadecimal value. I tried to use RGB color at first 
        but it doesn't work in svg. Then I found this method in stack overflow. Here is the link: 
        http://stackoverflow.com/questions/3607858/how-to-convert-a-rgb-color-value-to-an-hexadecimal-value-in-java*/
        return String.format("#%02x%02x%02x",r,g,b);
    }
}

顺便说一句，这是新的 svg 图片: nhập mô tả hình ảnh ở đây

谢谢@Manuel_Jain!

关于java - 如何循环 8*1 svg 图像(由 java 生成)以获得 8*8 svg 图像？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/30093680/

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