main : added auto-fit axis limits to plot update example.

my1e5 · Oct 10, 2023 · 98079e1 · 98079e1
1 parent 8dc02e1
commit 98079e1
Showing 1 changed file with 8 additions and 4 deletions.
diff --git a/plots/plot_update_data.py b/plots/plot_update_data.py
@@ -14,16 +14,20 @@ def generate_data(m: float, c: float):
 def update_plot():
     data_x, data_y = generate_data(dpg.get_value("m_slider"), dpg.get_value("c_slider"))
     dpg.configure_item('line', x=data_x, y=data_y)
+    if dpg.get_value("auto_fit_checkbox"):
+        dpg.fit_axis_data("xaxis")
+        dpg.fit_axis_data("yaxis")
 
-with dpg.window():
+with dpg.window(pos=(10,10)):
     with dpg.plot(label="y = mx + c", height=400, width=500):
-        xaxis = dpg.add_plot_axis(dpg.mvXAxis, label="x")
-        yaxis = dpg.add_plot_axis(dpg.mvYAxis, label="y")
+        dpg.add_plot_axis(dpg.mvXAxis, label="x", tag="xaxis")
+        dpg.add_plot_axis(dpg.mvYAxis, label="y", tag="yaxis")
         data_x, data_y = generate_data(M, C)
-        dpg.add_line_series(data_x, data_y, tag='line', parent=yaxis)
+        dpg.add_line_series(data_x, data_y, tag='line', parent="yaxis")
 
     dpg.add_slider_float(label="m", tag="m_slider", default_value=M, min_value=0, max_value=10, callback=update_plot)
     dpg.add_slider_float(label="c", tag="c_slider", default_value=C, min_value=-50, max_value=50, callback=update_plot)
+    dpg.add_checkbox(label="Auto-fit axis limits", tag="auto_fit_checkbox", default_value=False)
 
 dpg.create_viewport(width=900, height=600, title='Updating plot data')
 dpg.setup_dearpygui()