不忘初心牢记使命主题教育勇于担当作为推动振兴发展研讨发言材料

4U()mailto:[e-mail]1P1(1,0)P2(8,3)xydax+bx+c=0,a=-3,b=7,c=3;x=1;y=0;2d=2*a+b=10x=2;y=0;2d=2d+2a=-50x=3;y=1;2d=2d+2(a+b)=30x=4;y=1;2d=2d+2a=-30x=5;y=2;2d=2d+2(a+b)=50x=6;y=2;2d=2d+2a=-10x=7;y=3;2d=2d+2(a+b)=70x=8;y=3;2d=2d+2a=10dd=2d=2Cohen-Sutherland-barskeyCohen-Sutherland-barskeyCyrus-Beck344U()mailto:[e-mail]564U()mailto:[e-mail]0P1P2P3,⎟⎠⎞⎜⎝⎛21PTBezier⎟⎠⎞⎜⎝⎛21PTBezier21,)1(3)1(3)1(2133222130=+-+-+-=⎟⎠⎞⎜⎝⎛ttPttPttPtPPP1P1’⎟⎠⎞⎜⎝⎛21PT21,)1(3)1('3)1(33222130=+-+-+-=ttPttPttPtPT21,)1(3)1('3212121=---=⎟⎠⎞⎜⎝⎛-tttPttPPT21,)1(3)1(321'2211=--+⎟⎠⎞⎜⎝⎛-=tttttPPTP(1)Beizer(2)Beizer(0,0),(0,100),(100,0),(100,100)nPPP,,,10LnBezier]1,0[)()(0,∈=∑=ttBPtPninii*1*1*0,,,+nPPPL∑∑=+=-+--=-niniiniiininiiinttPCttPC010*1)1()1(4U()mailto:[e-mail]))1((tt-+∑∑-++=-+-+-=-+-iniiinniiniiniiinttPCttttPC1*1011)1())1()1(initt-+-1)1(111*--++=jnniniiniCPCPCP)1,,1,0(1111*+=⎟⎠⎞⎜⎝⎛+-++=-niPniPniPiiiL011==+-nPP(0,0)(0,75)(50,50)(100,25)(100,100)Bezier(30,0),(60,10),(80,30),(90,60),(90,90)t=1/4,deCasteljau75,34.375(30,0)(60,10)(80,30)(90,60)(90,90)(37.5,2.5)(65,15)(82.5,37.5)(90,67.5)(44.375,5.625)(69.375,20.625)(84.375,45)(50.625,9.375)(73.125,26.71875)(56.25,13.7109375)Bezier(6,0),(3,0),(0,3),(0,6),0,1/3,2/3,1,Bezier3322300123()(1)3(1)3(1)bttbtttbttbtb=-+-+-+,)0,6(0=b)6,0(3=bt=1/32/3⎪⎪⎩⎪⎪⎨⎧+++=+++=321032102789492271)3,0(2719294278)0,3(bbbbbbbb)4,25(),25,4(21-=-=bbdeBoor(30,0),(60,10),(80,30),(90,60),(90,90)T=(0,0,0,0,0.5,1,1,1,1)Bt=1/44U()mailto:[e-mail]jiikijkj()()()(),[],===-+-=-+∑∑1112Bt=1/483.4375,47.8125∑=niiita0Bernsteinib∑∑===niniiniiitBbta00)(iniinnittCtB--=)1()(iniiniiittCbta--=)1(ininiitCab--=)1(1RGBCMYHSVRGBCMYCyanMagentaYellowCMYHSVHueSaturationValue2:GouraudPhong312(N*H)n3Fresnel490544U()mailto:[e-mail](start,direction,weight,color){if(weightMinWeight)color=black;else{startif()color=black;else{Ilocal=RRayTracing(,R,weight*WrIr);TRayTracing(,T,weight*WtIt);Color=Ilocal+KsIr+KtIt}}}5,()6∑=niiita0Bernsteinib∑∑===niniiniiitBbta00)(t=0=a0=b000ba=t=1=∑=niia0=bnbn=∑=niia0n=22012010221202210)2()22()1(2)1(tbbbtbbbtbttbtbtataa+-+-+=+-+-=++22211aab+=n=34U()mailto:[e-mail]332102210010332212130332210)33()363()33()1(3)1(3)1(tbbbbtbbbtbbbtbttbttbtbtatataa+-+-++-+-+=+-+-+-=+++332,330122011aaabaab++=+=n=44432,443,44012330122011aaaabaaabaab+++=++=+=bi⎪⎪⎩⎪⎪⎨⎧=+++=-=+-+++-+===-niaaabninnaanainabiabnniii,...1,...2,1,)1(...)1(0,1001100