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78 lines
2.6 KiB
TeX
78 lines
2.6 KiB
TeX
\documentclass{article}
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\usepackage[pdftex,active,tightpage]{preview}
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\setlength\PreviewBorder{2mm}
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\usepackage{tikz}
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\usepackage{tkz-euclide}
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\usetkzobj{all}
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\usetikzlibrary{shapes, calc, decorations}
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\usepackage{amsmath,amssymb}
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\usepackage{helvet}
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\usepackage[eulergreek]{sansmath}
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\begin{document}
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\begin{preview}
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\begin{tikzpicture}[very thick,font=\sansmath\sffamily]
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\tkzDefPoint(0,1){A}
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\tkzDefPoint(4,0){B}
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\tkzDefPoint(3,6){C}
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\tkzLabelPoints[below left,font=\sansmath\sffamily](A)
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\tkzLabelPoints[below right,font=\sansmath\sffamily](B)
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\tkzLabelPoints[above,font=\sansmath\sffamily](C)
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% Draw polygon
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\tkzDrawPolygon[thick,fill=gray!10](A,B,C)
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% Get mid points
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\tkzDefMidPoint(A,B) \tkzGetPoint{F}
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\tkzDefMidPoint(A,C) \tkzGetPoint{E}
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\tkzDefMidPoint(B,C) \tkzGetPoint{D}
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\tkzLabelPoints[right,font=\sansmath\sffamily](D)
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\tkzLabelPoints[left,font=\sansmath\sffamily](E)
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\tkzLabelPoints[below,font=\sansmath\sffamily](F)
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\tkzDefCircle[circum,/tikz/overlay](D,E,F)\tkzGetPoint{M}\tkzGetLength{rIN}
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\tkzDrawCircle[R,color=red, very thick](M,\rIN pt)
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% Get 'Hoehe'
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\tkzInterLC[/tikz/overlay](B,C)(A,B)\tkzGetPoints{hah1}{hah2}
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\tkzDefMidPoint(hah1,hah2) \tkzGetPoint{G}
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\tkzLabelPoints[right,font=\sansmath\sffamily](G)
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\tkzInterLC[/tikz/overlay](A,B)(C,A)\tkzGetPoints{hch1}{hch2}
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\tkzDefMidPoint(hch1,hch2) \tkzGetPoint{I}
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\tkzLabelPoints[below,font=\sansmath\sffamily](I)
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\tkzInterLC[/tikz/overlay](A,C)(B,A)\tkzGetPoints{hbh1}{hbh2}
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\tkzDefMidPoint(hbh1,hbh2) \tkzGetPoint{H}
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\tkzLabelPoints[left,font=\sansmath\sffamily](H)
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% 'Hoehenschnittpunkt'
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\tkzInterLL(A,G)(C,I)\tkzGetPoint{S}
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\tkzLabelPoints[above right,font=\sansmath\sffamily](S)
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% More points
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\tkzInterLC[/tikz/overlay,R](A,G)(M,\rIN pt)\tkzGetPoints{G}{J}
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\tkzLabelPoints[above,font=\sansmath\sffamily](J)
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\tkzInterLC[/tikz/overlay,R](B,H)(M,\rIN pt)\tkzGetPoints{L}{H}
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\tkzLabelPoints[above,font=\sansmath\sffamily](L)
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\tkzInterLC[/tikz/overlay,R](C,I)(M,\rIN pt)\tkzGetPoints{I}{K}
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\tkzLabelPoints[above left,font=\sansmath\sffamily](K)
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% Draw rest
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\tkzDrawSegments[dashed](A,G C,I B,H)
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\tkzDrawSegments[thick](A,J J,S) % red,very thick
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\tkzDrawSegments[thick](C,K K,S) % green,very
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\tkzDrawSegments[thick](B,L L,S) % blue,very
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\tkzDrawPoints[size=2,fill=black](D,E,F,I,G,H,S,J,L,K)
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\tkzDrawPoints[size=2,fill=red,color=red](M)
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\tkzLabelPoints[right,font=\sansmath\sffamily,red](M)
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% Draw polygon
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\tkzDrawPolygon[thick](A,B,C)
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\end{tikzpicture}
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\end{preview}
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\end{document}
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