java - 用于矩形旋转的 Java pdfbox 库

Question

尝试使用基于 fabric json 的 pdfbox 库旋转矩形，但 x 坐标和 y 坐标未显示在正确的位置。

下面的代码：

public void drawRectangle(PDPageContentStream contentStream, PDPage page, JSONObject props) throws IOException {

        String originX = (String) props.get("originX");
        String originY = (String) props.get("originY");
        Double left = (Double) props.get(originX);
        Double top = (Double) props.get(originY);
        Double width = (Double) props.get("width");
        Double hight = (Double) props.get("height");

        
        String fillColor = (String) props.get("fill"); // "#B3B3B3";
        String strokeColor = null;
        if (hight != 1.0) {
            strokeColor = (String) props.get("stroke"); // "#000000";
        }
        Double strokeWidth = (Double) props.get("strokeWidth"); // 0.0f;
       
        String strokeLineCap = (String) props.get("strokeLineCap"); // "butt";
        String strokeLineJoin = (String) props.get("strokeLineJoin"); // "miter";
        Double strokeMitterLimit = (Double) props.get("strokeMiterLimit");
        
        
        String fillRule = (String) props.get("fillRule"); // "nonzero";
        contentStream.setNonStrokingColor(Color.decode(fillColor));
        if (hight != 1.0) {
            contentStream.setStrokingColor(Color.decode(strokeColor));
        }
        contentStream.setLineWidth(strokeWidth.floatValue());
        contentStream.setLineCapStyle(
                "butt".equalsIgnoreCase(strokeLineCap) ? 0 : ("round".equalsIgnoreCase(strokeLineCap) ? 1 : 2));
        contentStream.setLineJoinStyle(
                "miter".equalsIgnoreCase(strokeLineJoin) ? 0 : ("round".equalsIgnoreCase(strokeLineCap) ? 1 : 2));
        contentStream.setMiterLimit(strokeMitterLimit.floatValue());

        Double scaleX = (Double) props.get("scaleX"); // 1.0f;//must be minimum 1
        if (scaleX <= 1) {
            scaleX = (Double) 1.0;
        }
        Double scaleY = (Double) props.get("scaleY"); // 1.0f;// must be minimum 1
        if (scaleY <= 1) {
            scaleY = (Double) 1.0;
        }
        double angle = (double) props.get("angle"); // 0.0d; 
         
        PDRectangle cropBox = page.getCropBox(); 
        float tx = (cropBox.getLowerLeftX() + cropBox.getUpperRightX()) / 2; 
        float ty = (cropBox.getLowerLeftY() + cropBox.getUpperRightY()) / 2;
                   
        contentStream.transform(Matrix.getTranslateInstance(tx, ty));
        contentStream.transform(Matrix.getRotateInstance(Math.toRadians(360-angle), 0, 0)); 
        contentStream.transform(Matrix.getTranslateInstance(-tx, -ty));
                    
        contentStream.addRect(left.floatValue(), page.getMediaBox().getHeight()-top.floatValue() - hight.floatValue(), 
                   width.floatValue(), hight.floatValue());
           
        
        if ("nonzero".equals(fillRule)) {
            contentStream.fillAndStroke();
        } else {
            contentStream.fillAndStrokeEvenOdd();
        }
}

我的示例织物 json：

{
        "type": "rect",
        "pos": 3,       
        "tag": "",
        "version": "4.3.1",
        "originX": "left",
        "originY": "top",
        "left": 550.6,
        "top": 632.35,
        "width": 71.26,
        "height": 99.51,
        "fill": "#B3B3B3",
        "stroke": "#000000",
        "strokeWidth": 0.0,
        "strokeLineCap": "butt",
        "strokeDashOffset": 0.0,
        "strokeLineJoin": "miter",
        "strokeMiterLimit": 4.0,
        "scaleX": 1.0,
        "scaleY": 1.0,
        "angle": 111.31,
        "flipX": false,
        "flipY": false,
        "opacity": 1.0,
        "visible": true,
        "backgroundColor": "",
        "fillRule": "nonzero",
        "paintFirst": "fill",
        "globalCompositeOperation": "source-over",
        "skewX": 0.0,
        "skewY": 0.0,
        "lockMovementX": false,
        "lockMovementY": false,
        "lockScalingX": false,
        "lockScalingY": false,
        "lockUniScaling": false,
        "lockRotation": false,
        "lockObject": false,
        "fillColor": {
            "id": 0,
            "cyan": 0,
            "magenta": 0,
            "yellow": 0,
            "black": 30,
            "tint": 100.0,
            "shade": 0.0,
            "name": "C=0 M=0 Y=0 K=30",
            "isTransparent": false,
            "isSpotColor": false
        },
        "strokeColor": {
            "id": 0,
            "cyan": 0,
            "magenta": 0,
            "yellow": 0,
            "black": 100,
            "tint": 100.0,
            "shade": 0.0,
            "name": "C=0 M=0 Y=0 K=100",
            "isTransparent": false,
            "isSpotColor": false
        },
        "rx": 0.0,
        "ry": 0.0,
        "absolutePositioned": false,
        "inverted": false
    }

并尝试了stackoverflow中提到的不同方法，似乎没有任何效果。我感谢任何帮助。

标签： javapdfboxaffinetransform