python - PyQt5 QWebView not rendering matplotlib svg properly -


i'm trying use qwebview display html page containing several matplotlib generated svg files. content displays expect, svg figures missing parts. seems though purely horizontal or vertical lines aren't rendered (elements drawn axvline/axhline, grid, errorbar etc.). strangely, resizing window causes missing elements pop view.

what happening here?

example code

from io import bytesio pyqt5 import qtgui, qtwidgets, qtwebkitwidgets matplotlib.figure import figure matplotlib.backends.backend_qt5agg import figurecanvasqtagg figurecanvas import numpy np  # generate figure fig = figure() canvas = figurecanvas(fig) ax = fig.add_subplot(111) x = np.arange(-2*np.pi, 2*np.pi, step=0.1) y = np.sin(x) ax.grid(which='major') ax.plot(x, y) ax.axhline(0, color='black', linestyle='--') ax.axvline(0, color='black', linestyle='--')  # save svg svg = bytesio() fig.savefig(svg, format='svg')  # display in gui app = qtwidgets.qapplication([]) win = qtwidgets.qwidget() win.setwindowtitle('test svg rendering') webview = qtwebkitwidgets.qwebview() webview.setcontent(svg.getvalue()) layout = qtwidgets.qhboxlayout(win) layout.addwidget(canvas) layout.addwidget(webview) win.show() app.exec_()

output

enter image description here

after resizing window

enter image description here


-

Comments

Post a Comment

Popular posts from this blog

php - Auto increment employee ID -

Image
i want add employee , after that, employee id increment. textbox must disabled also here's code. want auto increment employee id when add new employee. hope me. thank in advance. :) <center> <form class="contact_form" action="#" method="post"> <h2>register new employee</h2> <br/> <table> <tr> <td><label for="emp">emp id:</label></td> <td><input type="text" name="emp" placeholder="emp id" required /></td> </tr> <tr> <td><label for="name">name:</label></td> <td><input type="text" name="fname" placeholder="first name" required /> <input type="text" name="lname" placehol...
Read more

php - isset function not working properly -

the page unable see login form code written under isset function statement. have written code correctly , have executed many times , code written inside isset statement not works. here code:- <?php session_start(); echo "<p style=\"font-color: #ff0000;\"> catogoies </p>"; echo '<link href="var/www/html/sample.css" rel="stylesheet">'; require_once('../html/conn.php'); $query = "select * catogories"; mysqli_select_db($dbc, 'odit'); $retrieve = mysqli_query($dbc, $query); if(!$retrieve) { die(mysqli_error($query)); } while($row=mysqli_fetch_array($retrieve, mysql_assoc)){ echo "<p style=\"font-color: #ff0000;\">".'<a href="cats.php? catogory='.urldecode($row["name"]).'">'.$row["name"].'</a>'."</p>"; $_session['cat']=$row["name"]; } if(!($_session)) ...
Read more

python - Evaluating the next line in a For Loop while in the current iteration -

here trying do: trying solve issue has wrapping in text file. i want open txt file, read line , if line contains want contain, check next line see if not contain in first line. if not, add line first line. import re stuff = open("my file") line in stuff: if re.search("from ", line): first = line print first if re.search('from ', handle.next()): continue else: first = first + handle.next() else: continue i have looked quite few things , cannot seem find answer. please help! i try this, invalid triples of "from " , not elegant @ all. lines = open("file", 'r').readlines() lines2 = open("file2", 'w') counter_list=[] last_from = 0 counter, line in enumerate(lines): if "from " in line , counter != last_from +1: last_from = counter current_count = counter if current_coun...
Read more