math - create Grid lines like Geogebra in C# -


this first step write program can plotter mathematics functions : need create grid lines coordinate x , y , line zooming in/out , half of line disappear in geogebra graphics when zoom out mouse-wheel ,

i wrote simple code in c# in visual studio cant geogebra :) result

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my goal zoom in/out geogebra screenshot

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i can't find how can , kind of ?


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