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Ronald Caesar
5f0791e8b1
This adds luajit-imgui without submodules. Signed-off-by: Ronald Caesar <github43132@proton.me>
30 lines
785 B
Lua
30 lines
785 B
Lua
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local igwin = require"imgui.window"
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--local win = igwin:SDL(800,400, "plotter")
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local win = igwin:GLFW(800,400, "plotter")
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local ffi = require"ffi"
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local buffer = ffi.new("char[256]", "1/x")
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local Graph = win.ig.Plotter(-10,10)
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--Graph:calc(function(x) return math.exp(x) end)
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Graph:calc(function(x) return 1/x end)
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--Graph:calc(function(x) return x*(x+1)/x end)
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function win:draw(ig)
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if ig.InputText("function(x)",buffer,ffi.sizeof(buffer),ig.lib.ImGuiInputTextFlags_EnterReturnsTrue) then
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local str = ffi.string(buffer)
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str = "return function(x) return "..str.." end"
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local f = loadstring(str)
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if f then
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Graph:calc(f())
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else
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print"bad function definition"
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end
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end
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Graph:draw()
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end
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win:start() |