Selection rectangle with MakieLayout.jl
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using Makie | |
using MakieLayout | |
using GLFW; GLFW.WindowHint(GLFW.FLOATING, 1) | |
## | |
scene, layout = layoutscene() | |
ax = layout[1, 1] = LAxis(scene) | |
heatmap!(ax, randn(500, 500)) | |
tightlimits!(ax) | |
start_pos = Ref(Point2f0(0, 0)) | |
current_pos = Ref(Point2f0(0, 0)) | |
rectnode = Node(BBox(0, 10, 0, 10)) | |
rectplot = Ref{Union{Nothing, Poly}}(poly!(ax, rectnode, color = (:blue, 0.05), strokecolor = (:blue, 0.5), | |
strokewidth = 2,xautolimits = false, yautolimits = false, visible = false)) | |
scenestate = MakieLayout.addmousestate!(ax.scene) | |
MakieLayout.onmouseleftdragstart(scenestate) do state | |
start_pos[] = state.pos | |
end | |
MakieLayout.onmouseleftdrag(scenestate) do state | |
current_pos[] = state.pos | |
c = current_pos[] | |
s = start_pos[] | |
rectnode[] = let | |
minx, miny = min.(s, c) | |
maxx, maxy = max.(s, c) | |
BBox(minx, maxx, miny, maxy) | |
end | |
rectplot[].visible = true | |
end | |
MakieLayout.onmouseleftdragstop(scenestate) do state | |
rectplot[].visible = false | |
ax.limits[] = rectnode[] | |
end | |
scene | |
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