One more slider

Author: ufechner7

examples/sliders.jl

@@ -14,7 +14,7 @@ function figure_eight_path(A, B, C, D, x0, y0, theta, num_points)
     return x_final, y_final
 end
 
-A = 20.0      # width of the figure-eight
+A = Observable(20.0)      # width of the figure-eight
 B = Observable(10.0)      # height of the figure-eight
 C = Observable(0.0)       # size of right part of the figure-eight
 D = Observable(0.0)       # asymmetry factor
@@ -23,18 +23,18 @@ y0 = 25.0      # center y-coordinate
 theta = 0*π/6   # rotation angle in radians
 num_points = 200
 
-function figure_eight_y(B, C, D)
+function figure_eight_y(A, B, C, D)
     x, y = figure_eight_path(A, B, C, D, x0, y0, theta, num_points)
     return y
 end
 
-function figure_eight_x(B, C, D)
+function figure_eight_x(A, B, C, D)
     x, y = figure_eight_path(A, B, C, D, x0, y0, theta, num_points)
     return x
 end
 
-y = @lift(figure_eight_y($B, $C, $D))
-x = @lift(figure_eight_x($B, $C, $D))
+y = @lift(figure_eight_y($A, $B, $C, $D))
+x = @lift(figure_eight_x($A, $B, $C, $D))
 
 # Create the figure and axis
 fig = Figure()
@@ -44,29 +44,32 @@ ax = Axis(fig[1, 1], xlabel = "azimuth [°]", ylabel = "elevation [°]",
 # Plot the sine wave
 lineplot = lines!(ax, x, y)
 ylims!(ax, 10, 40)
+xlims!(ax, -30, 30)
 
 # Create sliders for amplitude and frequency
 sg = SliderGrid(
     fig[2, 1],
+    (label = "A", range = 10:0.01:30.0, startvalue = 20.0),
     (label = "B", range = 5:0.01:20.0, startvalue = 10.0),
     (label = "C", range = -2.0:0.01:2.0, startvalue = 0.0),
     (label = "D", range = -3:0.01:3.0, startvalue = 0.0)
 )
 
 # Connect sliders to observables
 on(sg.sliders[1].value) do val
-    B[] = val
+    A[] = val
 end
 
 on(sg.sliders[2].value) do val
-    C[] = val
+    B[] = val
 end
 
 on(sg.sliders[3].value) do val
-    D[] = val
+    C[] = val
 end
 
-# Optional: keep axis limits stable if amplitude changes a lot
-# ax.ylims = (-2, 2)  # or use autolimits! if you prefer dynamic limits
+on(sg.sliders[4].value) do val
+    D[] = val
+end
 
 fig