在iText Java中添加地图 [英] Adding maps at iText Java

问题描述

我正在使用java和iText创建pdf.是否可以添加带有指针的地图，以便用户知道起点在哪里?

I am using java and iText to create a pdf. Is it possible to add a map with a pointer on it so the user will know where the starting point is?

说明(来自OP同时删除的答案，应该是对问题的修改)

Clarification (from a meanwhile deleted answer by the OP which should have been an edit of the question)

我的问题是我可以从Web而不是图像上添加到iText谷歌地图

my problem is can i add at iText google map from web and not as an image

推荐答案

由于您没有回答我在评论中添加的反对问题，因此我为您提供了两个示例.如果这些不是您想要的，那么您真的应该澄清您的问题.

Since you didn't answer my counter-question added in comment, I'm providing you two examples. If these are not what you're looking for, you really should clarify your question.

示例1:在地图顶部添加自定义形状作为额外内容

在 AddPointer 示例中对此进行了演示:

This is demonstrated in the AddPointer example:

PdfContentByte canvas = writer.getDirectContent();
canvas.setColorStroke(BaseColor.RED);
canvas.setLineWidth(3);
canvas.moveTo(220, 330);
canvas.lineTo(240, 370);
canvas.arc(200, 350, 240, 390, 0, (float) 180);
canvas.lineTo(220, 330);
canvas.closePathStroke();
canvas.setColorFill(BaseColor.RED);
canvas.circle(220, 370, 10);
canvas.fill();

如果我们知道指针的坐标，则可以绘制直线和曲线，从而显示红色指针(请参见剑桥创新中心附近的红色针脚):

If we know the coordinates of the pointer, we can draw lines and curves that result in a the red pointer shown here (see the red pin near the Cambridge Innovation Center):

示例2:在地图顶部添加线条注释

在 AddPointerAnnotation 示例中进行了演示:

Rectangle rect = new Rectangle(220, 350, 475, 595);
PdfAnnotation annotation = PdfAnnotation.createLine(writer, rect, "Cambridge Innovation Center", 225, 355, 470, 590);
PdfArray le = new PdfArray();
le.add(new PdfName("OpenArrow"));
le.add(new PdfName("None"));
annotation.setTitle("You are here:");
annotation.setColor(BaseColor.RED);
annotation.setFlags(PdfAnnotation.FLAGS_PRINT);
annotation.setBorderStyle(
    new PdfBorderDictionary(5, PdfBorderDictionary.STYLE_SOLID));
annotation.put(new PdfName("LE"), le);
annotation.put(new PdfName("IT"), new PdfName("LineArrow"));
writer.addAnnotation(annotation);

结果是一个注释(它不是真实内容的一部分，而是真实内容之上的交互式层的一部分):

The result is an annotation (which isn't part of the real content, but part of an interactive layer on top of the real content):

这是交互式的，即当用户单击注释时会显示更多信息:

It is interactive in the sense that extra info is shown when the user clicks the annotation:

还有许多其他选择，但再次重申:您的问题并不十分清楚.

Many other options are possible, but once again: your question wasn't entirely clear.

这篇关于在iText Java中添加地图的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！