问题描述
最近我正在使用 Spring Boot 使用 Apache POI,但我遇到了一个问题。我想表示实体之间的数据库连接,但在可视化多个连接时遇到问题。
所以我的基本问题是分离连接。
这是我的开始:1
你看不到但是这两个矩形之间有多个连接,但是由于相同的起点和终点,它们彼此重叠。
<p:cxnSp>
<p:nvCxnSpPr>
<p:cNvPr name="Connector 7" id="7" />
<p:cNvCxnSpPr>
<a:stCxn id="2" idx="3" />
<a:endCxn id="3" idx="1" />
</p:cNvCxnSpPr>
<p:nvPr />
</p:nvCxnSpPr>
<p:spPr>
<a:xfrm flipV="1">
<a:off y="2199409" x="2616200" />
<a:ext cy="1318491" cx="2413000" />
</a:xfrm>
<a:prstGeom prst="curvedConnector3">
<a:avLst />
</a:prstGeom>
<a:ln w="9525">
<a:solidFill>
<a:srgbClr val="000000" />
</a:solidFill>
</a:ln>
</p:spPr>
</p:cxnSp>
所以我想要做的是将弯曲的连接器中点设置为不同的值,就像在这张图片中一样(例如,我手动执行此操作): 2
我尝试向连接器添加一些其他 GeomGuide 元素,但结果是一个不稳定的 pptx 文件:
<a:prstGeom prst="curvedConnector3">
<a:avLst>
<a:gd name="adj1" fmla="val 57365" />
</a:avLst>
</a:prstGeom>
相关的java代码片段:
XSLFConnectorShape connector1 = slide.createConnector();
CTNonVisualConnectorProperties cx = ctConnector.getNvCxnSpPr().getCNvCxnSpPr();
CTConnection start = cx.addNewStCxn();
start.setId(shapeIdStart);
start.setIdx(rel.getStartSide());
CTConnection end = cx.addNewEndCxn();
end.setId(shapeIdEnd);
end.setIdx(rel.getEndSide());
CTGeomGuideList ctGeomGuideList = ctConnector.getSpPr().getPrstGeom().getAvLst();
CTGeomGuide ctGeomGuide = ctGeomGuideList.addNewGd();
ctGeomGuide.setName("adj");
ctGeomGuide.setFmla("val 45000");
解决方法
您提供的代码片段不完整。所以不清楚这是否是唯一的问题。但无论如何 ctGeomGuide.setName("adj");
都是错误的。调整手柄已编号,并且没有仅称为 adj
的调整手柄。它必须是 ctGeomGuide.setName("adj1");
。
以下代码是一个 Minimal,Reproducible Example,它可以工作并创建您想要的结果。
import java.io.FileOutputStream;
import org.apache.poi.xslf.usermodel.*;
import org.apache.poi.sl.usermodel.*;
import org.openxmlformats.schemas.presentationml.x2006.main.*;
import org.openxmlformats.schemas.drawingml.x2006.main.*;
import java.awt.Rectangle;
import java.awt.geom.Rectangle2D;
import java.awt.Color;
public class CreatePPTXConnectorShapes {
private static XSLFConnectorShape createConnector(XSLFSlide slide,XSLFAutoShape shape1,XSLFAutoShape shape2) {
XSLFConnectorShape connector = slide.createConnector();
connector.setShapeType(ShapeType.CURVED_CONNECTOR_3);
connector.setAnchor(new Rectangle2D.Double( //connector is diagonal in a rectangle
shape1.getAnchor().getMaxX(),// top left x of that rectangle is x position of right edge of shape1
shape2.getAnchor().getCenterY(),// top left y of that rectangle is center y of shape2 as shape2 is above shape1
shape2.getAnchor().getX()-shape1.getAnchor().getMaxX(),// width of that rectanle is x of shape2 minus x position of right edge of shape1 as shape2 is right of shape1
shape1.getAnchor().getCenterY()-shape2.getAnchor().getCenterY() // height of that rectanle is center y of shape1 minus center y of shape2 as shape2 is above shape1
));
connector.setFlipVertical(true); // the rectangle needs to be flipped vertically as the connector shall be diagonal from bottom left to top right
CTConnector ctConnector = (CTConnector)connector.getXmlObject();
CTNonVisualConnectorProperties cx = ctConnector.getNvCxnSpPr().getCNvCxnSpPr();
CTConnection start = cx.addNewStCxn();
start.setId(shape1.getShapeId());
start.setIdx(3); // connecting point 3 is center of right edge
CTConnection end = cx.addNewEndCxn();
end.setId(shape2.getShapeId());
end.setIdx(1); // connecting point 1 is center of left edge
return connector;
}
public static void main(String[] args) throws Exception {
XMLSlideShow slideShow = new XMLSlideShow();
XSLFSlide slide = slideShow.createSlide();
XSLFAutoShape shape1 = slide.createAutoShape();
shape1.setShapeType(ShapeType.RECT);
shape1.setFillColor(Color.GREEN);
shape1.setAnchor(new Rectangle(50,150,100));
XSLFAutoShape shape2 = slide.createAutoShape();
shape2.setShapeType(ShapeType.RECT);
shape2.setFillColor(Color.GREEN);
shape2.setAnchor(new Rectangle(500,50,100));
// first connector
XSLFConnectorShape connector1 = createConnector(slide,shape1,shape2);
CTConnector ctConnector = (CTConnector)connector1.getXmlObject();
CTGeomGuideList ctGeomGuideList = ctConnector.getSpPr().getPrstGeom().getAvLst();
CTGeomGuide ctGeomGuide = ctGeomGuideList.addNewGd();
ctGeomGuide.setName("adj1");
ctGeomGuide.setFmla("val 45000");
//second connector
XSLFConnectorShape connector2 = createConnector(slide,shape2);
ctConnector = (CTConnector)connector2.getXmlObject();
ctGeomGuideList = ctConnector.getSpPr().getPrstGeom().getAvLst();
ctGeomGuide = ctGeomGuideList.addNewGd();
ctGeomGuide.setName("adj1");
ctGeomGuide.setFmla("val 57365");
FileOutputStream out = new FileOutputStream("CreatePPTXConnectorShapes.pptx");
slideShow.write(out);
out.close();
}
}