Question

我想让窗口管理器管理好这些情节。当我在python中以交互方式创建绘图时：

import zbar
import Image
import ImageDraw
import kanban

class Scanner(object):
    def __init__(self, imagepath):
        self.image = Image.open(imagepath).convert('L')
        self.width, self.height = self.image.size
        self.informations = []
        # create a reader
        self.scanner = zbar.ImageScanner()
        # configure the scanner
        self.scanner.set_config(0, zbar.Config.ENABLE, 0)
        self.scanner.set_config(zbar.Symbol.QRCODE, zbar.Config.ENABLE, 1)

def image_optimize(self):
    doubled_size = (self.image.size[0] * 2, self.image.size[1] * 2)
    self.image = self.image.resize(doubled_size, Image.ANTIALIAS)
    self.width, self.height = self.image.size

def scan(self):
    self.image_optimize()
    pieces_size = int(self.get_qr_code_size() * 2)
    step_size = int(pieces_size / 4)
    self.scan_image(self.image,0,0)
    y_start = 0

    iy = 0
    while y_start < self.height:
        y_start = iy * step_size
        y_end = y_start + pieces_size
        iy += 1
        ix = 0
        x_start = 0
        while x_start < self.width:
            x_start = ix * step_size
            x_end = x_start + pieces_size
            crop_to = (x_start, y_start, x_end, y_end)
            img_crop = self.image.crop(crop_to)
            self.scan_image(img_crop, x_start, y_start)
            ix += 1

    return self.informations

def get_qr_code_size(self):
    zbar_img = zbar.Image(self.width, self.height, 'Y800', self.image.tostring())php

    qr_sizes = []

    print(qr_sizes)
    # scan the image for barcodes
    self.scanner.scan(zbar_img)
    for symbol in zbar_img:
        qr_width = symbol.location[3][0] - symbol.location[0][0]
        qr_height = symbol.location[1][1] - symbol.location[0][1]
        qr_sizes.append(qr_width)
        qr_sizes.append(qr_height)
    if len(qr_sizes) == 0:
        raise IOError('Klopfer says: no qr code scanned')

    return sum(qr_sizes, 0.0) / len(qr_sizes)

def scan_image(self, img_scan, x_start, y_start):
    crop_width, crop_height = img_scan.size
    zbar_img = zbar.Image(crop_width, crop_height, 'Y800', img_scan.tostring())

    # scan the image for barcodes
    self.scanner.scan(zbar_img)

    # Create a draw object
    draw = ImageDraw.Draw(self.image)
    draw_crop = ImageDraw.Draw(img_scan)

    for symbol in zbar_img:
        top_left = (symbol.location[0][0] + x_start, symbol.location[0][1] + y_start)
        bottom_left = (symbol.location[1][0] + x_start, symbol.location[1][1] + y_start)
        bottom_right = (symbol.location[2][0] + x_start, symbol.location[2][1] + y_start)
        top_right = (symbol.location[3][0] + x_start, symbol.location[3][1] + y_start)
        self.informations.append(kanban.Information(symbol.data, (top_left, bottom_left, bottom_right, top_right)))
        draw.rectangle([(top_left), (bottom_right)], fill="black")
        draw_crop.rectangle([symbol.location[0], symbol.location[2]], fill="black")
    if len(zbar_img.symbols) > 0:
        self.scan_image(img_scan, x_start, y_start)

检查窗口属性，我什么都没得到。

from numpy import arange
import matplotlib
matplotlib.use('Qt5Agg')
import matplotlib.pyplot as pt
pt.ion()

x = arange(-10,10,step=.1)
pt.plot(x, x**3)

如何告诉matplotlib / Python将X-window属性添加到其图中？

Answer 1

看起来，这不是matplotlib的问题，也不是matplotlib的解决方案：相反，后端似乎负责创建窗口客户端并执行X.org属性的注册和设置。

从Qt5Agg切换到TkAgg后，我突然拥有了我想要的所有属性：

% xprop | grep CLASS
WM_CLASS(STRING) = "tk", "Tk"
% xprop | grep WM_NAME
_NET_WM_NAME(UTF8_STRING) = "Figure 1"
WM_NAME(STRING) = "Figure 1"

我的窗口管理员（herbstluftwm）现在正在很好地处理所有新创建的数字。

在matplotlib的图中添加XClass属性

1 个答案: