Android 雷达图

2023-12-06

I wonder if is possible replicate this kind of graph in Android.Graph

直接从图像输入数据并不重要,将在上一个屏幕上输入。

如果不可能重新创建类似的图表(我认为实际上很难)可以使用简单的蜘蛛图,但重要的是可以插入两个不同的系列并且它们有自己的标签。

事实上,请注意,大写的标签形成一个表面,而小写的标签将形成另一个表面。 你说你能做出这样的事吗?

我找到了这个图书馆(https://code.google.com/p/charts4j/)他也做图形蜘蛛图,但我无法进入与他的“传奇”不同的系列!


我已经部分解决了图表的设计! 现在我可以绘制完全相同的表格并正确输入数据。 特别是,我创建了一个自定义视图来扩展 ImageView 并在onDraw(画布画布)我添加了以下代码:(代码根本没有优化,我知道,只是为了快速运行测试)

    @Override 
    public void onDraw(Canvas canvas) {
        super.onDraw(canvas);

        Paint paint = new Paint();
        Paint paint_cibo = new Paint();
        Paint paint_vino = new Paint();
        Paint paint_text = new Paint();

        final float x = getWidth() * 1.5f;
        final float y = getHeight() * 1.5f;

        final int[] valori_cibo = new int[]{2, 5, 4, 8, 3, 5};
        final int[] valori_vino = new int[]{6, 7, 7, 6, 6, 6};

        canvas.drawColor(Color.WHITE);

        paint.setAntiAlias(true);
        paint.setColor(Color.BLACK);
        paint.setStyle(Paint.Style.STROKE); 
        paint.setStrokeWidth(2f);

        paint_cibo.setAntiAlias(true);
        paint_cibo.setColor(Color.BLUE);
        paint_cibo.setStyle(Paint.Style.STROKE);
        paint_cibo.setStrokeWidth(2f);

        paint_vino.setAntiAlias(true);
        paint_vino.setColor(Color.RED);
        paint_vino.setStyle(Paint.Style.STROKE);
        paint_vino.setStrokeWidth(2f);

        paint_text.setAntiAlias(true);
        paint_text.setColor(Color.BLACK);
        paint_text.setStyle(Paint.Style.FILL);
        paint_text.setTextSize(10);

        // Draw the circles
        for(int i = 1; i <= 110; i += 10)
            canvas.drawCircle(x, y, i, paint);

        // Draw the intersection lines
        canvas.drawLine(x + 10, y - 2.5f, (float)(x + 10 + 110 * Math.cos(returnGradi(90))), (float)(y - 2.5f - 110 * Math.sin(returnGradi(90))), paint);

        canvas.drawLine(x, y, (float)(x + 110 * Math.cos(returnGradi(45))), (float)(y - 110 * Math.sin(returnGradi(45))), paint);
        canvas.drawLine(x, y, (float)(x + 110 * Math.cos(returnGradi(30))), (float)(y - 110 * Math.sin(returnGradi(30))), paint);

        canvas.drawLine(x + 10, y - 5, (float)(x + 10 + 110 * Math.cos(returnGradi(315))), (float)(y - 5 - 110 * Math.sin(returnGradi(315))), paint);
        canvas.drawLine(x, y + 8, (float)(x + 110 * Math.cos(returnGradi(315))), (float)(y + 8 - 110 * Math.sin(returnGradi(315))), paint);

        canvas.drawLine(x, y, (float)(x + 110 * Math.cos(returnGradi(280))), (float)(y - 110 * Math.sin(returnGradi(280))), paint);
        canvas.drawLine(x, y, (float)(x + 110 * Math.cos(returnGradi(260))), (float)(y - 110 * Math.sin(returnGradi(260))), paint);

        canvas.drawLine(x - 10, y - 5, (float)(x - 10 + 110 * Math.cos(returnGradi(225))), (float)(y - 5 - 110 * Math.sin(returnGradi(225))), paint);
        canvas.drawLine(x, y + 8, (float)(x + 110 * Math.cos(returnGradi(225))), (float)(y + 8 - 110 * Math.sin(returnGradi(225))), paint);

        canvas.drawLine(x - 10, y - 2.5f, (float)(x - 10 + 110 * Math.cos(returnGradi(90))), (float)(y - 2.5f - 110 * Math.sin(returnGradi(90))), paint);
        canvas.drawLine(x, y, (float)(x + 110 * Math.cos(returnGradi(135))), (float)(y - 110 * Math.sin(returnGradi(135))), paint);
        canvas.drawLine(x, y, (float)(x + 110 * Math.cos(returnGradi(150))), (float)(y - 110 * Math.sin(returnGradi(150))), paint);

        // Draw the numbers
        for(int i = 1; i <= 10; i++)
            canvas.drawText(String.valueOf(i), x - 2.5f, y - i * 10, paint_text);


        //Start drawing food
        canvas.drawLine((float)(x + valori_cibo[0] * 10 * Math.cos(returnGradi(45))), (float)(y - valori_cibo[0] * 10 * Math.sin(returnGradi(45))), (float)(x + valori_cibo[1] * 10 * Math.cos(returnGradi(30))), (float)(y - valori_cibo[1] * 10 * Math.sin(returnGradi(30))), paint_cibo);
        canvas.drawLine((float)(x + valori_cibo[1] * 10 * Math.cos(returnGradi(30))), (float)(y - valori_cibo[1] * 10 * Math.sin(returnGradi(30))), (float)(x + valori_cibo[2] * 10 * Math.cos(returnGradi(280))), (float)(y - valori_cibo[2] * 10 * Math.sin(returnGradi(280))), paint_cibo);
        canvas.drawLine((float)(x + valori_cibo[2] * 10 * Math.cos(returnGradi(280))), (float)(y - valori_cibo[2] * 10 * Math.sin(returnGradi(280))), (float)(x + valori_cibo[3] * 10 * Math.cos(returnGradi(260))), (float)(y - valori_cibo[3] * 10 * Math.sin(returnGradi(260))), paint_cibo);
        canvas.drawLine((float)(x + valori_cibo[3] * 10 * Math.cos(returnGradi(260))), (float)(y - valori_cibo[3] * 10 * Math.sin(returnGradi(260))), (float)(x + valori_cibo[4] * 10 * Math.cos(returnGradi(150))), (float)(y - valori_cibo[4] * 10 * Math.sin(returnGradi(150))), paint_cibo);
        canvas.drawLine((float)(x + valori_cibo[4] * 10 * Math.cos(returnGradi(150))), (float)(y - valori_cibo[4] * 10 * Math.sin(returnGradi(150))), (float)(x + valori_cibo[5] * 10 * Math.cos(returnGradi(135))), (float)(y - valori_cibo[5] * 10 * Math.sin(returnGradi(135))), paint_cibo);
        canvas.drawLine((float)(x + valori_cibo[5] * 10 * Math.cos(returnGradi(135))), (float)(y - valori_cibo[5] * 10 * Math.sin(returnGradi(135))), (float)(x + valori_cibo[0] * 10 * Math.cos(returnGradi(45))), (float)(y - valori_cibo[0] * 10 * Math.sin(returnGradi(45))), paint_cibo);

        //Start drawing Wine
        canvas.drawLine((float)(x + 10 + valori_vino[0] * 10 * Math.cos(returnGradi(90))), (float)(y - valori_vino[0] * 10 * Math.sin(returnGradi(90))), (float)(x + 10 + valori_vino[1] * 10 * Math.cos(returnGradi(315))), (float)(y - 5 - valori_vino[1] * 10 * Math.sin(returnGradi(315))), paint_vino);
        canvas.drawLine((float)(x + 10 + valori_vino[1] * 10 * Math.cos(returnGradi(315))), (float)(y - 5 - valori_vino[1] * 10 * Math.sin(returnGradi(315))), (float)(x + 5 + valori_vino[3] * 10 * Math.cos(returnGradi(315))), (float)(y + 10 - valori_vino[3] * 10 * Math.sin(returnGradi(315))), paint_vino);
        canvas.drawLine((float)(x + 5 + valori_vino[3] * 10 * Math.cos(returnGradi(315))), (float)(y + 10 - valori_vino[3] * 10 * Math.sin(returnGradi(315))), (float)(x + 5 + valori_vino[3] * 10 * Math.cos(returnGradi(225))), (float)(y + 5 - valori_vino[3] * 10 * Math.sin(returnGradi(225))), paint_vino);
        canvas.drawLine((float)(x + 5 + valori_vino[3] * 10 * Math.cos(returnGradi(225))), (float)(y + 5 - valori_vino[3] * 10 * Math.sin(returnGradi(225))), (float)(x - 5 + valori_vino[4] * 10 * Math.cos(returnGradi(225))), (float)(y - 8 - valori_vino[4] * 10 * Math.sin(returnGradi(225))), paint_vino);
        canvas.drawLine((float)(x - 5 + valori_vino[4] * 10 * Math.cos(returnGradi(225))), (float)(y - 8 - valori_vino[4] * 10 * Math.sin(returnGradi(225))), (float)(x - 10 + valori_vino[5] * 10 * Math.cos(returnGradi(90))), (float)(y - valori_vino[5] * 10 * Math.sin(returnGradi(90))), paint_vino);
        canvas.drawLine((float)(x - 10 + valori_vino[5] * 10 * Math.cos(returnGradi(90))), (float)(y - valori_vino[5] * 10 * Math.sin(returnGradi(90))), (float)(x + 10 + valori_vino[0] * 10 * Math.cos(returnGradi(90))), (float)(y - valori_vino[0] * 10 * Math.sin(returnGradi(90))), paint_vino);
}

我重复,不要考虑优化不佳的代码......是否可以实现某种变焦,将焦点变焦保持在圆心的中心?

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