private String getLinearGradientElement(String id, GradientPaint paint) {
        StringBuilder b = new StringBuilder("<linearGradient id=\"").append(id)
                .append("\" ");
        Point2D p1 = paint.getPoint1();
        Point2D p2 = paint.getPoint2();
        b.append("x1=\"").append(geomDP(p1.getX())).append("\" ");
        b.append("y1=\"").append(geomDP(p1.getY())).append("\" ");
        b.append("x2=\"").append(geomDP(p2.getX())).append("\" ");
        b.append("y2=\"").append(geomDP(p2.getY())).append("\" ");
        b.append("gradientUnits=\"userSpaceOnUse\">");
        Color c1 = paint.getColor1();
        b.append("<stop offset=\"0%\" stop-color=\"").append(rgbColorStr(c1))
                .append("\"");
        if (c1.getAlpha() < 255) {
            double alphaPercent = c1.getAlpha() / 255.0;
            b.append(" stop-opacity=\"").append(transformDP(alphaPercent))
                    .append("\"");
        }
        b.append("/>");
        Color c2 = paint.getColor2();
        b.append("<stop offset=\"100%\" stop-color=\"").append(rgbColorStr(c2))
                .append("\"");
        if (c2.getAlpha() < 255) {
            double alphaPercent = c2.getAlpha() / 255.0;
            b.append(" stop-opacity=\"").append(transformDP(alphaPercent))
                    .append("\"");
        }
        b.append("/>");
        return b.append("</linearGradient>").toString();
    }
private String getLinearGradientElement(String id, GradientPaint paint) {
        StringBuilder b = new StringBuilder("<linearGradient id=\"").append(id)
                .append("\" ");
        Point2D p1 = paint.getPoint1();
        Point2D p2 = paint.getPoint2();
        b.append("x1=\"").append(geomDP(p1.getX())).append("\" ");
        b.append("y1=\"").append(geomDP(p1.getY())).append("\" ");
        b.append("x2=\"").append(geomDP(p2.getX())).append("\" ");
        b.append("y2=\"").append(geomDP(p2.getY())).append("\" ");
        b.append("gradientUnits=\"userSpaceOnUse\">");
        Color c1 = paint.getColor1();
        b.append("<stop offset=\"0%\" stop-color=\"").append(rgbColorStr(c1))
                .append("\"");
        if (c1.getAlpha() < 255) {
            double alphaPercent = c1.getAlpha() / 255.0;
            b.append(" stop-opacity=\"").append(transformDP(alphaPercent))
                    .append("\"");
        }
        b.append("/>");
        Color c2 = paint.getColor2();
        b.append("<stop offset=\"100%\" stop-color=\"").append(rgbColorStr(c2))
                .append("\"");
        if (c2.getAlpha() < 255) {
            double alphaPercent = c2.getAlpha() / 255.0;
            b.append(" stop-opacity=\"").append(transformDP(alphaPercent))
                    .append("\"");
        }
        b.append("/>");
        return b.append("</linearGradient>").toString();
    }
private String getLinearGradientElement ( String id , GradientPaint paint ) { StringBuilder b = new StringBuilder ( "<linearGradient id=\"" ) . append ( id ) . append ( "\" " ) ; Point2D p1 = paint . getPoint1 ( ) ; Point2D p2 = paint . getPoint2 ( ) ; b . append ( "x1=\"" ) . append ( geomDP ( p1 . getX ( ) ) ) . append ( "\" " ) ; b . append ( "y1=\"" ) . append ( geomDP ( p1 . getY ( ) ) ) . append ( "\" " ) ; b . append ( "x2=\"" ) . append ( geomDP ( p2 . getX ( ) ) ) . append ( "\" " ) ; b . append ( "y2=\"" ) . append ( geomDP ( p2 . getY ( ) ) ) . append ( "\" " ) ; b . append ( "gradientUnits=\"userSpaceOnUse\">" ) ; Color c1 = paint . getColor1 ( ) ; b . append ( "<stop offset=\"0%\" stop-color=\"" ) . append ( rgbColorStr ( c1 ) ) . append ( "\"" ) ; if ( c1 . getAlpha ( ) < 255 ) { double alphaPercent = c1 . getAlpha ( ) / 255.0 ; b . append ( " stop-opacity=\"" ) . append ( transformDP ( alphaPercent ) ) . append ( "\"" ) ; } b . append ( "/>" ) ; Color c2 = paint . getColor2 ( ) ; b . append ( "<stop offset=\"100%\" stop-color=\"" ) . append ( rgbColorStr ( c2 ) ) . append ( "\"" ) ; if ( c2 . getAlpha ( ) < 255 ) { double alphaPercent = c2 . getAlpha ( ) / 255.0 ; b . append ( " stop-opacity=\"" ) . append ( transformDP ( alphaPercent ) ) . append ( "\"" ) ; } b . append ( "/>" ) ; return b . append ( "</linearGradient>" ) . toString ( ) ; }
Returns an element to represent a linear gradient.  All the linear
gradients that are used get written to the DEFS element in the SVG.

@param id  the reference id.
@param paint  the gradient.

@return The SVG element.
Returns an element to represent a linear gradient . All the linear gradients that are used get written to the DEFS element in the SVG .