Question

这是我尝试的代码：

 @Override
    public void handleEvent(Event event) {
        System.out.println("THIS IS ME: HEADER EVENT HANDLER STARTED.....");


        PdfDocumentEvent documentEvent = (PdfDocumentEvent) event;
        PdfDocument pdfDoc = documentEvent.getDocument();
        PdfPage page = documentEvent.getPage();
        Rectangle pageSize = page.getPageSize();
        int pageNumber = pdfDoc.getPageNumber(page);

        String logoImagePath = null;

        ClassLoader classLoader = getClass().getClassLoader();
        logoImagePath = classLoader.getResource("/Images/logo.png").getPath();


        System.out.println("Page size: " + pageSize.getHeight());

        Rectangle rectangle = new Rectangle(pageSize.getLeft() + 30, pageSize.getHeight() - 114, pageSize.getWidth() - 60, 80);
        PdfCanvas pdfCanvas = new PdfCanvas(page.newContentStreamBefore(), page.getResources(), pdfDoc);
        pdfCanvas.rectangle(rectangle);
        pdfCanvas.setFontAndSize(FontsAndStyles.getRegularFont(), 10);
        Canvas canvas = new Canvas(pdfCanvas, pdfDoc, rectangle);

        Div header = new Div();
        header.setBorder(Border.NO_BORDER);

        try {
            Image logoImage = new Image(ImageDataFactory.create(logoImagePath));
            logoImage.setFixedPosition(15, 740);
            logoImage.scale(.15f, .15f);

            header.add(logoImage);
        } catch (MalformedURLException ex) {
            ex.printStackTrace();
            System.err.println(ex.getMessage());
        }

        Paragraph paragraph = new Paragraph();
        Text text = new Text("\n\n\n");
        paragraph.add(text);
        paragraph.setFont(FontsAndStyles.getRegularFont());
        paragraph.setFontSize(8);
        text = new Text("http://www.histopath.gr\n");
        paragraph.setTextAlignment(TextAlignment.RIGHT);
        paragraph.add(text);
        header.add(paragraph);
        paragraph = new Paragraph();
        text = new Text("Αποκορώνου 66, ΧΑΝΙΑ, Τηλ: 2821002827, Κιν: 6948571893, 6976800330, email: histologypathology@gmail.com");
        text.setFont(FontsAndStyles.getRegularFont());
        text.setFontSize(8);
        paragraph.add(text);
        paragraph.setTextAlignment(TextAlignment.JUSTIFIED_ALL);
        header.add(paragraph);


        header.setTextAlignment(TextAlignment.CENTER);
        canvas.add(header);
        canvas.setBorder(Border.NO_BORDER);
        canvas.close();

    }

它以前没有任何问题地发出了禁令。但是不能使用文本。我收到以下错误：

import matplotlib.pyplot as plt
import numpy as np
bb = [1,2,3,4,5,6,7,8,9,10]
cc = ["red","red","yellow","red","green","red","red","green","red","red"]
tt = ["\u2714","\u2714""\u2718","\u2714","\u2718","\u2714","\u2714","\u2718","\u2714","\u2714"]
x1=np.arange(10)
x2=np.arange(10)
fig = plt.figure()
fig.set_size_inches(50,70)
ax1 = fig.add_subplot(331)

ax1.bar(np.arange(len(bb)), bb, color=cc,width=0.6)
text_applied = ax1.text(x1,2,tt,color=cc)

plt.show()

请让我知道如何根据指定的颜色和Traceback (most recent call last): File "C:\Python35\lib\tkinter\__init__.py", line 1549, in __call__ return self.func(*args) File "C:\Python35\lib\tkinter\__init__.py", line 596, in callit func(*args) File "C:\Python35\lib\site-packages\matplotlib\backends\_backend_tk.py", line 310, in idle_draw self.draw() File "C:\Python35\lib\site-packages\matplotlib\backends\backend_tkagg.py", line 12, in draw super(FigureCanvasTkAgg, self).draw() File "C:\Python35\lib\site-packages\matplotlib\backends\backend_agg.py", line 433, in draw self.figure.draw(self.renderer) File "C:\Python35\lib\site-packages\matplotlib\artist.py", line 55, in draw_wrapper return draw(artist, renderer, *args, **kwargs) File "C:\Python35\lib\site-packages\matplotlib\figure.py", line 1475, in draw renderer, self, artists, self.suppressComposite) File "C:\Python35\lib\site-packages\matplotlib\image.py", line 141, in _draw_list_compositing_images a.draw(renderer) File "C:\Python35\lib\site-packages\matplotlib\artist.py", line 55, in draw_wrapper return draw(artist, renderer, *args, **kwargs) File "C:\Python35\lib\site-packages\matplotlib\axes\_base.py", line 2607, in draw mimage._draw_list_compositing_images(renderer, self, artists) File "C:\Python35\lib\site-packages\matplotlib\image.py", line 141, in _draw_list_compositing_images a.draw(renderer) File "C:\Python35\lib\site-packages\matplotlib\artist.py", line 55, in draw_wrapper return draw(artist, renderer, *args, **kwargs) File "C:\Python35\lib\site-packages\matplotlib\text.py", line 706, in draw bbox, info, descent = textobj._get_layout(renderer) File "C:\Python35\lib\site-packages\matplotlib\text.py", line 282, in _get_layout key = self.get_prop_tup(renderer=renderer) File "C:\Python35\lib\site-packages\matplotlib\text.py", line 862, in get_prop_tup x, y = self.get_unitless_position() File "C:\Python35\lib\site-packages\matplotlib\text.py", line 844, in get_unitless_position x = float(self.convert_xunits(self._x)) TypeError: only size-1 arrays can be converted to Python scalars显示文本。

Answer 1

我不确定您的预期输出是什么，但是如果您想在每个小节下方使用不同颜色的符号，可以将其设置为刻度线，如下所示：

import matplotlib.pyplot as plt
import numpy as np

bb = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
cc = ["red", "red", "yellow", "red", "green", "red", "red", "green", "red", "red"]
tt = ["\u2714", "\u2714", "\u2718", "\u2714", "\u2718", "\u2714", "\u2714", "\u2718", "\u2714", "\u2714"]

fig = plt.figure()
ax1 = fig.add_subplot(111)
ax1.bar(range(len(bb)), bb, color=cc, width=0.6)
ax1.set_xticks(range(len(bb)))
ax1.set_xticklabels(tt)
for xtick, color in zip(ax1.get_xticklabels(), cc):
    xtick.set_color(color)
plt.show()

输出：

顺便说一句，请注意，您的代码tt中第二个和第三个元素之间缺少逗号。

Answer 2

我不太明白你的问题。在plt.text()的文档中，我找不到将字符串数组馈入参数的可能性：

定义：文本（x，y，s，fontdict = None，withdash = False，** kwargs）

类型：matplotlib.pyplot模块的功能

向轴添加文本。

将文本s添加到数据坐标中x，y位置的轴上。

参数

x，y：
       标量放置文本的位置。默认情况下，这是在   数据坐标。可以使用   转换参数。
   s：str文本。

所以我建议简单

for x, t, c in zip(x1, tt, cc):
    ax1.text(x, 2, t, color=c)

Matplotlib文本不采用数组值

2 个答案: