Add unicode multiplot (#120)

* UnicodePlots: Enable multiplot layout by reducing the resolution

* UnicodePlots: add autoscale to scalarplot 2D

* UnicodePlots: Adjust total resolutions to make multiplots more consistent

* UnicodePlots: use normal text color where useful

* first draft of 2d vectorplot with UnicodePlots

* improved vector plot

* UnicodePlots: Make scalarplot 2d slightly larger

* use colormap for arrow coloring

* use ansi_color

* old arrow directions were correct

* provisoric colorbar for vectorplot

* removed debug line

* UnicodePlots: handle clear=true correctly in 1D Scalarplot

* much nicer vectorplot with outside colorbar

* vectorplot colorbar now changes with ctx[:colormap], ctx[:vscale] changes arrowtypes

* reveal only existing subplots

* Show placeholders for incomplete multiplots

* Reduce sizing of plots a bit further

it now matches the resolution in the terminal on minimal zoom

* fix names and labels in scalarplot

* Respect scaling and xlimits

* Comply to plot_multiscene interface

* Test UnicodePlots

* Add UnicodePlots image to README

* coordinate limits in vectorplot, less padding and shorter coordinate limits in gridplot

* check only if plot_multiscene is crashing

* Update pre-commit

* restored old padding in gridplot, added new border kwarg to toggle the border styles in UnicodePlots

* Update unicode plot image

* moved legend and limits to outside labels, removed padding in gridplots

* Update unicode plot image

---------

Co-authored-by: chmerdon <christian.merdon@wias-berlin.de>

Author: pjaap

.pre-commit-config.yaml

@@ -16,10 +16,10 @@ repos:
   hooks:
   - id: gitleaks
 - repo: https://github.com/fredrikekre/runic-pre-commit
-  rev: v2.0.1
+  rev: v2.2.0
   hooks:
   - id: runic
 - repo: https://github.com/codespell-project/codespell
-  rev: v2.4.1
+  rev: v2.4.2
   hooks:
   - id: codespell

CHANGELOG.md

@@ -1,6 +1,7 @@
 # Changelog
 
-## [1.18.2] - 2026-04-21
+## [1.19.0] - 2026-XX-XX
+- `UnicodePlots` does support multiplots if the package `Term` is loaded.
 - Add colorbar for cell regions in 2D `gridplot!` with `Py[thon]Plot`
 
 ## [1.18.0] - 2026-04-15

Project.toml

@@ -1,7 +1,7 @@
 name = "GridVisualize"
 uuid = "5eed8a63-0fb0-45eb-886d-8d5a387d12b8"
+version = "1.19.0"
 authors = ["Juergen Fuhrmann <juergen.fuhrmann@wias-berlin.de>", "Patrick Jaap <patrick.jaap@wias-berlin.de>"]
-version = "1.18.2"
 
 [deps]
 ColorSchemes = "35d6a980-a343-548e-a6ea-1d62b119f2f4"
@@ -64,6 +64,7 @@ Printf = "1.6"
 PyPlot = "2"
 PythonPlot = "1"
 StaticArrays = "1"
+Term = "2.0.8"
 Triangulate = "2, 3"
 UnicodePlots = "3"
 VTKView = "0.1,0.2"
@@ -75,8 +76,9 @@ ExtendableGrids = "cfc395e8-590f-11e8-1f13-43a2532b2fa8"
 Pkg = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"
 PlutoVista = "646e1f28-b900-46d7-9d87-d554eb38a413"
 PyPlot = "d330b81b-6aea-500a-939a-2ce795aea3ee"
+Term = "22787eb5-b846-44ae-b979-8e399b8463ab"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 Triangulate = "f7e6ffb2-c36d-4f8f-a77e-16e897189344"
 
 [targets]
-test = ["CairoMakie", "ExtendableGrids", "Pkg", "PlutoVista", "PyPlot", "Test", "Triangulate"]
+test = ["CairoMakie", "ExtendableGrids", "Pkg", "PlutoVista", "PyPlot", "Term", "Test", "Triangulate", "UnicodePlots"]

README.md

@@ -135,18 +135,18 @@ and all plotting functions will do nothing.
 |                | PyPlot/PythonPlot  | Makie | PlutoVista | Plots | VTKView | UnicodePlots |
 |----------------|--------------------|-------|------------|-------|---------|--------------|
 | scalarplot, 1D | y                  | y     | y,i        | y     | y       | y            |
-| vectorplot, 1D | y                  | y     | y          | y     | y       |              |
+| vectorplot, 1D | y                  | y     | y          | y     | y       | n            |
 | gridplot, 1D   | y                  | y     | y          | y     |         | y            |
 | scalarplot, 2D | y                  | y     | y          | (y)   | y,i     | y            |
-| vectorplot, 2D | y                  | y     | y          | y     |         |
-| streamplot, 2D | y                  | y     | p          | n     |         |
+| vectorplot, 2D | y                  | y     | y          | y     |         | y
+| streamplot, 2D | y                  | y     | p          | n     |         | n
 | gridplot, 2D   | y                  | y,i   | y          | (y)   | y,i     | y            |
-| scalarplot, 3D | y                  | y,i   | y,i        | n     | y,i     |              |
-| gridplot, 3D   | y                  | y,i   | y,i        | n     | y,i     |              |
-| vectorplot, 3D | p                  | p     | p          | n     |         |              |
-| streamplot, 3D |                    | p     | p          | n     |         |              |
-| movie          | n                  | y     | n          | y     |         |              |
-| triangulateio  | y                  | y     | n          | n     | n       |              |
+| scalarplot, 3D | y                  | y,i   | y,i        | n     | y,i     | n            |
+| gridplot, 3D   | y                  | y,i   | y,i        | n     | y,i     | n            |
+| vectorplot, 3D | p                  | p     | p          | n     |         | n            |
+| streamplot, 3D |                    | p     | p          | n     |         | n            |
+| movie          | n                  | y     | n          | y     |         | n            |
+| triangulateio  | y                  | y     | n          | n     | n       | n            |
 
 ## Sample output
 
@@ -166,6 +166,10 @@ and all plotting functions will do nothing.
 ### [VTKView](https://github.com/j-fu/VTKView.jl) (experimental):
 ![](https://github.com/WIAS-PDELib/GridVisualize.jl/blob/main/docs/src/assets/multiscene_vtkview.png?raw=true")
 
+### [UnicodePlots](https://github.com/JuliaPlots/UnicodePlots.jl) (experimental):
+![](https://github.com/WIAS-PDELib/GridVisualize.jl/blob/main/docs/src/assets/multiscene_unicodeplots.png?raw=true")
+
+
 ## vscode
 Plotting  into the plot pane of Visual Studio Code is working. Here, you can use CairoMakie or WGLMakie as backend. This works only with the mutating functions, i.e. you should use something like
 ```