Added box option

DomainColoringToy/src/DomainColoringToy.jl

@@ -125,6 +125,7 @@ end
         grid = false,
         color = true,
         all = false,
+        box = nothing,
         kwargs...
     )
 
@@ -169,6 +170,10 @@ to ``\\frac{2\\pi}{3}``, cyan to ``\\pi``, blue to
 
 - **`all`** is a shortcut for `abs = true` and `grid = true`.
 
+- **`box`** if set to `(a, b, s)` shades the area where the the output
+  is within the box `a` and `b` in the color `s`. Can also be a list of
+  multiple boxes.
+
 Remaining keyword arguments are passed to Makie.
 """
 function domaincolor(
@@ -179,6 +184,7 @@ function domaincolor(
         grid = false,
         color = true,
         all = false,
+        box = nothing,
         kwargs...
     )
 
@@ -188,7 +194,7 @@ function domaincolor(
     end
 
     interactiveshadedplot(
-        f, w -> DC.domaincolorshader(w; abs, grid, color, all),
+        f, w -> DC.domaincolorshader(w; abs, grid, color, all, box),
         limits, pixels; kwargs...)
 end
 
@@ -197,6 +203,7 @@ end
         f :: "Complex -> Complex",
         limits = (-1, 1, -1, 1);
         pixels = (480, 480),
+        box = nothing,
         kwargs...
     )
 
@@ -222,16 +229,21 @@ to ``\\pi``, and black to ``\\frac{3\\pi}{2}``.
   for both if only one number is provided. If either is `:auto`, the
   viewport resolution is used.
 
+- **`box`** if set to `(a, b, s)` shades the area where the the output
+  is within the box `a` and `b` in the color `s`. Can also be a list of
+  multiple boxes.
+
 Remaining keyword arguments are passed to Makie.
 """
 function pdphaseplot(
         f,
         limits = (-1, 1, -1, 1);
         pixels = (480, 480),
+        box = nothing,
         kwargs...
     )
 
-    interactiveshadedplot(f, DC.pdphaseplotshader,
+    interactiveshadedplot(f, w -> DC.pdphaseplotshader(w; box),
                           limits, pixels; kwargs...)
 end
 
@@ -240,6 +252,7 @@ end
         f :: "Complex -> Complex",
         limits = (-1, 1, -1, 1);
         pixels = (480, 480),
+        box = nothing,
         kwargs...
     )
 
@@ -265,16 +278,21 @@ Red corresponds to phase ``0``, white to ``\\frac{\\pi}{2}``, cyan to
   for both if only one number is provided. If either is `:auto`, the
   viewport resolution is used.
 
+- **`box`** if set to `(a, b, s)` shades the area where the the output
+  is within the box `a` and `b` in the color `s`. Can also be a list of
+  multiple boxes.
+
 Remaining keyword arguments are passed to Makie.
 """
 function tphaseplot(
         f,
         limits = (-1, 1, -1, 1);
         pixels = (480, 480),
+        box = nothing,
         kwargs...
     )
 
-    interactiveshadedplot(f, DC.tphaseplotshader,
+    interactiveshadedplot(f, w -> DC.tphaseplotshader(w; box),
                           limits, pixels; kwargs...)
 end
 
@@ -289,6 +307,8 @@ end
         angle = false,
         abs = false,
         polar = false,
+        box = nothing,
+        hicontrast = false,
         kwargs...
     )
 
@@ -329,6 +349,10 @@ Numbers can be provided instead of booleans to override the default rates.
 
 - **`phase`** is a shortcut for `angle = true` and `abs = true`.
 
+- **`box`** if set to `(a, b, s)` shades the area where the the output
+  is within the box `a` and `b` in the color `s`. Can also be a list of
+  multiple boxes.
+
 - **`hicontrast`** uses black and white instead of the softer defaults.
 
 Remaining keyword arguments are passed to Makie.
@@ -343,12 +367,13 @@ function checkerplot(
         angle = false,
         abs = false,
         polar = false,
+        box = nothing,
         hicontrast = false,
         kwargs...
     )
 
     interactiveshadedplot(f, w -> DC.checkerplotshader(
-            w; real, imag, rect, angle, abs, polar, hicontrast
+            w; real, imag, rect, angle, abs, polar, box, hicontrast
         ), limits, pixels; kwargs...)
 end
 
@@ -364,6 +389,7 @@ end
         abs = false,
         polar = false,
         color = false,
+        box = nothing,
         kwargs...
     )
 
@@ -406,6 +432,10 @@ Numbers can be provided instead of booleans to override the default rates.
 - **`color`** toggles coloring of the phase angle. Can also be set to
   either the name of, or a `ColorScheme`, or a function `θ -> Color`.
 
+- **`box`** if set to `(a, b, s)` shades the area where the the output
+  is within the box `a` and `b` in the color `s`. Can also be a list of
+  multiple boxes.
+
 Remaining keyword arguments are passed to Makie.
 """
 function sawplot(
@@ -419,11 +449,12 @@ function sawplot(
         abs = false,
         polar = false,
         color = false,
+        box = nothing,
         kwargs...
     )
 
     interactiveshadedplot(f, w -> DC.sawplotshader(
-            w; real, imag, rect, angle, abs, polar, color
+            w; real, imag, rect, angle, abs, polar, color, box
         ), limits, pixels; kwargs...)
 end
 

docs/src/usage/general.md

@@ -22,6 +22,10 @@ All plots have a keyword argument `pixels` by which one can specify the
 number of samples in respectively the real and imaginary direction. If
 only one number is provided it is used for both.
 
+Additionally there is also the option to fill in a box, or list of boxes
+in the output space using the option `box`, which is illustrated in the
+section on [`checkerplot`](@ref) and [`sawplot`](@ref).
+
 Finally, any remaining keywords are passed to Makie. This, together with
 the modifying variants (`domaincolor!`, `checkerplot!`, etc.), makes the
 plotting routines in this library behave similarly to other Makie plot
@@ -151,7 +155,7 @@ discussed so far also accept numbers, modifying the rate of the stripes.
 For example, we get for magnitude:
 ```@example
 using CairoMakie, DomainColoring # hide
-checkerplot(z -> z, 5, abs=5)
+sawplot(z -> z, 5, abs=5)
 resize!(current_figure(), 620, 600) #hide
 save("cpabs.png", current_figure()) # hide
 nothing # hide
@@ -162,7 +166,7 @@ and for phase:
 
 ```@example
 using CairoMakie, DomainColoring # hide
-sawplot(z -> z, 5, angle=10)
+checkerplot(z -> z, 5, angle=10)
 resize!(current_figure(), 620, 600) #hide
 save("cpangle.png", current_figure()) # hide
 nothing # hide
@@ -181,6 +185,17 @@ nothing # hide
 ```
 ![](cppolarsin.png)
 
+As mentioned before regions of the output plane can be colored using the
+`box` option, for example:
+```@example
+using CairoMakie, DomainColoring # hide
+checkerplot(z -> z^2, 2, box=[(1,1im,:red), (-1-2im,-2-1im,:blue)])
+resize!(current_figure(), 620, 600) #hide
+save("cpboxes.png", current_figure()) # hide
+nothing # hide
+```
+![](cpboxes.png)
+
 Finally, `hicontrast = true` can be used in [`checkerplot`](@ref) to
 plot in black and white instead of the slightly softer defaults, and
 `color = true` mixes phase coloring into a [`sawplot`](@ref) (further
@@ -195,7 +210,7 @@ and the rate of the grid. Additionally, we can pass named tuples to open
 up even more options.
 
 For `grid` these options are identical to `checkerplot`, for example an
-analogous example to the final one of last section, is given by:
+analogous example to the penultimate one of last section, is given by:
 ```@example
 using CairoMakie, DomainColoring # hide
 domaincolor(sin, (5, 2), grid=(polar=4,))