IntelÂ® Fortran Libraries Reference

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2 Intel Fortran Libraries ReferenceSyntaxresult = POLYBEZIER (ppoints, cpoints)result = POLYBEZIER_W (wppoints, cpoints)ppoints(Input) Derived type xycoord. Array of derived types defining the endpoints and the controlpoints for each Bezier curve. The derived type xycoord is defined in IFQWIN.F90 as follows:TYPE xycoordINTEGER(2) xcoordINTEGER(2) ycoordEND TYPE xycoordcpoints(Input) INTEGER(2). Number of points in ppoints or wppoints.wppoints(Input) Derived type wxycoord. Array of derived types defining the endpoints and the controlpoints for each Bezier curve. The derived type wxycoord is defined in IFQWIN.F90 asfollows:TYPE wxycoordREAL(8) wxREAL(8) wyEND TYPE wxycoordResults:The result type is INTEGER(2). The result is nonzero if anything is drawn; otherwise, 0.A Bezier curve is based on fitting a cubic curve to four points. The first point is the starting point,the next two points are control points, and last point is the ending point. The starting point must begiven for the first curve; subsequent curves use the ending point of the previous curve as theirstarting point. So, cpoints should contain 4 for one curve, 7 for 2 curves, 10 for 3 curves, and soforth.POLYBEZIER does not use or change the current graphics position.CompatibilitySTANDARD GRAPHICS QUICKWIN GRAPHICS LIBSee Also: “POLYBEZIERTO, POLYBEZIERTO_W”ExampleProgram Bezieruse IFQWIN2-248
Descriptions of the Library Routines 2! Shows how to use POLYBEZIER, POLYBEZIER_W,! POLYBEZIERTO, and POLYBEZIERTO_W,TYPE(xycoord) lppoints(31)TYPE(wxycoord) wlppoints(31)TYPE(xycoord) xyTYPE(wxycoord) wxyinteger(4) iinteger(2) istat, orgx, orgyreal(8) worgx, worgyi = setcolorrgb(Z'00FFFFFF') ! graphic to blacki = settextcolorrgb(Z'00FFFFFF') ! text to blacki = setbkcolorrgb(Z'00000000') ! background to whitecall clearscreen($GCLEARSCREEN)orgx = 20orgy = 20lppoints(1).xcoord = 1+orgxlppoints(1).ycoord = 1+orgylppoints(2).xcoord = 30+orgxlppoints(2).ycoord = 120+orgylppoints(3).xcoord = 150+orgxlppoints(3).ycoord = 60+orgylppoints(4).xcoord = 180+orgxlppoints(4).ycoord = 180+orgyistat = PolyBezier(lppoints, 4)! Show tangent lines! A bezier curve is tangent to the line! from the begin point to the first control! point. It is also tangent to the line from! the second control point to the end point.do i = 1,4,2call moveto(lppoints(i).xcoord,lppoints(i).ycoord,xy)istat = lineto(lppoints(i+1).xcoord,lppoints(i+1).ycoord)2-249
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About This ManualThis manual descri
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About This ManualCTRL{choice1 | cho
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About This ManualPlatformLanguage O
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Overview of the Libraries 1This cha
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