From f12ecb67472aa2453d3b1b3fb68e4eb9521aee77 Mon Sep 17 00:00:00 2001
From: hbui <hong-phuc.bui@htwsaar.de>
Date: Sun, 21 Jul 2024 13:41:27 +0200
Subject: [PATCH] gui ok
---
num-int/src/numint/guimain.py | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
1 files changed, 56 insertions(+), 2 deletions(-)
diff --git a/num-int/src/numint/guimain.py b/num-int/src/numint/guimain.py
index 8ac8d68..f16cd6c 100644
--- a/num-int/src/numint/guimain.py
+++ b/num-int/src/numint/guimain.py
@@ -1,8 +1,22 @@
import sys
+import matplotlib
-from PySide6.QtWidgets import QApplication, QMainWindow
+from PySide6.QtWidgets import QApplication, QMainWindow, QVBoxLayout
+from numint.input_parser import parse_function, parse_value
+from numint.riemann_sum import numint_epsilon, numint_section
from numint.ui_mainwindow import Ui_MainWindow
+from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg, NavigationToolbar2QT as NavigationToolbar
+from matplotlib.figure import Figure
+
+matplotlib.use('QtAgg')
+
+
+class MplCanvas(FigureCanvasQTAgg):
+ def __init__(self, parent=None, width=5, height=4, dpi=100):
+ fig = Figure(figsize=(width, height), dpi=dpi)
+ self.axes = fig.add_subplot(111)
+ super(MplCanvas, self).__init__(fig)
class MainWindow(QMainWindow):
@@ -10,6 +24,47 @@
super(MainWindow, self).__init__()
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
+ self.canvas = MplCanvas(self)
+ self._update_plot()
+
+ toolbar = NavigationToolbar(self.canvas, self)
+ layout = QVBoxLayout()
+ layout.addWidget(toolbar)
+ layout.addWidget(self.canvas)
+ self.ui.plotBox.setLayout(layout)
+ self.ui.plotBtn.clicked.connect(self._update_plot)
+
+ def _update_plot(self):
+ fn_expr = self.ui.function.text()
+ self.fn_expr = fn_expr
+ start = self.ui.startValue.text()
+ end = self.ui.endValue.text()
+ epsilon = self.ui.espilon.text()
+ try:
+ f = parse_function(fn_expr)
+ (a, b) = (parse_value(start), parse_value(end))
+ if epsilon is not None and len(epsilon.strip()) > 0:
+ eps = parse_value(epsilon)
+ print(f"plot {fn_expr}, {a}, {b}, epsilon = {eps}")
+ (self.x, self.y, *_) = numint_epsilon(f, a, b, eps)
+ self._update_plot_eps()
+ else:
+ section = self.ui.section.text()
+ sec = parse_value(section)
+ print(f"plot f(x) = {fn_expr}, {a}, {b}, section = {sec}")
+ (self.x, self.y, *_) = numint_section(f, a, b, sec)
+ self._update_plot_eps()
+ except Exception as ex:
+ print(ex)
+ pass
+
+ def _update_plot_eps(self):
+ self.canvas.axes.cla() # Clear the canvas.
+ self.canvas.axes.stairs(self.y[1:], self.x, baseline=0, fill=True, alpha=0.5, label=self.fn_expr)
+ self.canvas.axes.stairs(self.y[0:-1], self.x, baseline=0, fill=True, alpha=0.5, label=self.fn_expr)
+ self.canvas.axes.plot(self.x, self.y, color="black")
+ self.canvas.draw()
+
def main():
@@ -22,4 +77,3 @@
if __name__ == "__main__":
main()
-
--
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