Java：概述文本 - 粗笔划会导致间隙

Question

我试图对某些文字给出一个相当粗的笔划，这样做可以让我在某些角色周围留下空白，例如“我”。和＆＃39;。＆＃39;

我已经尝试了RenderingHints.KEY_STROKE_CONTROL和KEY_FRACTIONALMETRICS的所有排列（只有两个似乎与此有任何关系（KEY_ANTIALIASING和KEY_RENDERING除外）。我已尝试用TextLayout接近这两个我不知道如何继续进行。理想情况下，我希望使用VALUE_STROKE_PURE来实现这一点，因为这样可以获得最平滑的结果，但最终也会产生最大的差距。任何帮助将不胜感激！

public class TestLabelImage 
{
    public static void main(String[] args) 
    {
        BufferedImage labelImg = getTextAsBmp("testing.", 
                                              Color.BLACK, 
                                              Color.WHITE, 
                                              "TimesRoman", 
                                              Font.PLAIN, 
                                              36, 
                                              18.0f);       
    }


     static public void setRenderingHings(Graphics2D g2d)
     {
         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
         g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);

         //g2d.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
         //g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
         //g2d.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY);
         //g2d.setRenderingHint(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_ENABLE);
         //g2d.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
         //g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
         //g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
         //g2d.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_DEFAULT);
         //g2d.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_NORMALIZE);
         g2d.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_PURE);
    }


    static public BufferedImage getTextAsBmp(String text, Color textColor, Color textOutlineColor, String font, int style, int size, float stroke)
    {
         //create a temporary image so we can make use of Graphics class
         BufferedImage img = new BufferedImage(1, 1, BufferedImage.TYPE_INT_ARGB);
         Graphics2D g2d = img.createGraphics();
         setRenderingHings(g2d);

         Font f = new Font(font, style, size);
         FontMetrics metrics = g2d.getFontMetrics(f);   

         //Option 1:
         TextLayout textTl = new TextLayout(text, f, g2d.getFontRenderContext());
         Shape outline = textTl.getOutline(null);

         //Option 2:
         //GlyphVector glyphVector = f.createGlyphVector(g2d.getFontRenderContext(), text);
         //Shape outline = glyphVector.getOutline();

         g2d.dispose();

         //create a new image to the calculated height and width
         img = new BufferedImage((int)(outline.getBounds().getWidth() + stroke), (int)(outline.getBounds().getHeight() + stroke), BufferedImage.TYPE_INT_ARGB);

         g2d = img.createGraphics();
         setRenderingHings(g2d);

         g2d.setColor(Color.RED);
         g2d.fillRect(0,0,img.getWidth(),img.getHeight());

         g2d.translate((img.getWidth()/2 - outline.getBounds().getWidth()/2), outline.getBounds().getHeight() + (stroke)/2 - metrics.getDescent()); 

         g2d.setColor(textOutlineColor);
         //g2d.setStroke(new BasicStroke(stroke, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
         //g2d.setStroke(new BasicStroke(stroke, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER));
         //g2d.setStroke(new BasicStroke(stroke, BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND));
         //g2d.setStroke(new BasicStroke(stroke, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL));
         //g2d.setStroke(new BasicStroke(stroke, BasicStroke.CAP_ROUND, BasicStroke.JOIN_MITER));
         g2d.setStroke(new BasicStroke(stroke, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));         
         //g2d.setStroke(new BasicStroke(stroke, BasicStroke.CAP_SQUARE, BasicStroke.JOIN_BEVEL));
         //g2d.setStroke(new BasicStroke(stroke, BasicStroke.CAP_SQUARE, BasicStroke.JOIN_MITER));
         //g2d.setStroke(new BasicStroke(stroke, BasicStroke.CAP_SQUARE, BasicStroke.JOIN_ROUND));  

         g2d.draw(outline);

         g2d.setColor(textColor);
         g2d.fill(outline);

         g2d.dispose();

         return img;
    }
}