00001 // $Id: gmould.cpp 751 2006-03-31 15:43:49Z alex $ 00002 /* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE 00003 ================================XARAHEADERSTART=========================== 00004 00005 Xara LX, a vector drawing and manipulation program. 00006 Copyright (C) 1993-2006 Xara Group Ltd. 00007 Copyright on certain contributions may be held in joint with their 00008 respective authors. See AUTHORS file for details. 00009 00010 LICENSE TO USE AND MODIFY SOFTWARE 00011 ---------------------------------- 00012 00013 This file is part of Xara LX. 00014 00015 Xara LX is free software; you can redistribute it and/or modify it 00016 under the terms of the GNU General Public License version 2 as published 00017 by the Free Software Foundation. 00018 00019 Xara LX and its component source files are distributed in the hope 00020 that it will be useful, but WITHOUT ANY WARRANTY; without even the 00021 implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 00022 See the GNU General Public License for more details. 00023 00024 You should have received a copy of the GNU General Public License along 00025 with Xara LX (see the file GPL in the root directory of the 00026 distribution); if not, write to the Free Software Foundation, Inc., 51 00027 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00028 00029 00030 ADDITIONAL RIGHTS 00031 ----------------- 00032 00033 Conditional upon your continuing compliance with the GNU General Public 00034 License described above, Xara Group Ltd grants to you certain additional 00035 rights. 00036 00037 The additional rights are to use, modify, and distribute the software 00038 together with the wxWidgets library, the wxXtra library, and the "CDraw" 00039 library and any other such library that any version of Xara LX relased 00040 by Xara Group Ltd requires in order to compile and execute, including 00041 the static linking of that library to XaraLX. In the case of the 00042 "CDraw" library, you may satisfy obligation under the GNU General Public 00043 License to provide source code by providing a binary copy of the library 00044 concerned and a copy of the license accompanying it. 00045 00046 Nothing in this section restricts any of the rights you have under 00047 the GNU General Public License. 00048 00049 00050 SCOPE OF LICENSE 00051 ---------------- 00052 00053 This license applies to this program (XaraLX) and its constituent source 00054 files only, and does not necessarily apply to other Xara products which may 00055 in part share the same code base, and are subject to their own licensing 00056 terms. 00057 00058 This license does not apply to files in the wxXtra directory, which 00059 are built into a separate library, and are subject to the wxWindows 00060 license contained within that directory in the file "WXXTRA-LICENSE". 00061 00062 This license does not apply to the binary libraries (if any) within 00063 the "libs" directory, which are subject to a separate license contained 00064 within that directory in the file "LIBS-LICENSE". 00065 00066 00067 ARRANGEMENTS FOR CONTRIBUTION OF MODIFICATIONS 00068 ---------------------------------------------- 00069 00070 Subject to the terms of the GNU Public License (see above), you are 00071 free to do whatever you like with your modifications. However, you may 00072 (at your option) wish contribute them to Xara's source tree. You can 00073 find details of how to do this at: 00074 http://www.xaraxtreme.org/developers/ 00075 00076 Prior to contributing your modifications, you will need to complete our 00077 contributor agreement. This can be found at: 00078 http://www.xaraxtreme.org/developers/contribute/ 00079 00080 Please note that Xara will not accept modifications which modify any of 00081 the text between the start and end of this header (marked 00082 XARAHEADERSTART and XARAHEADEREND). 00083 00084 00085 MARKS 00086 ----- 00087 00088 Xara, Xara LX, Xara X, Xara X/Xtreme, Xara Xtreme, the Xtreme and Xara 00089 designs are registered or unregistered trademarks, design-marks, and/or 00090 service marks of Xara Group Ltd. All rights in these marks are reserved. 00091 00092 00093 Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK. 00094 http://www.xara.com/ 00095 00096 =================================XARAHEADEREND============================ 00097 */ 00098 00099 #include "camtypes.h" 00100 #include "moldshap.h" 00101 #include "gmould.h" 00102 00103 CC_IMPLEMENT_DYNAMIC(GMould, CCObject) 00104 00105 00106 // 00107 // GMould.cpp 00108 // 00110 00111 GMould::GMould() 00112 { 00113 SrcBBox.left = 0; 00114 SrcBBox.top = 1; 00115 SrcBBox.right = 1; 00116 SrcBBox.bottom = 0; 00117 00118 MinX = MinY = 0; 00119 MaxX = MaxY = 1; 00120 Width = Depth = 1; 00121 00122 Tolerance = 0.0; 00123 } 00124 00125 00126 BOOL GMould::Define( POINT *P, RECT *pBBox, DWORD pTolerance ) 00127 { 00128 SrcBBox.left = pBBox->left ; 00129 SrcBBox.top = pBBox->top ; 00130 SrcBBox.right = pBBox->right ; 00131 SrcBBox.bottom = pBBox->bottom ; 00132 00133 if (!Redefine( P )) 00134 return FALSE; 00135 00136 Tolerance = CalcTolerance( pTolerance ) ; 00137 00138 return TRUE; 00139 } 00140 00141 DocRect GMould::GetBoundingRect() 00142 { 00143 DocRect Rect; 00144 Rect.lo.x = MinX; 00145 Rect.lo.y = MinY; 00146 Rect.hi.x = MaxX; 00147 Rect.hi.y = MaxY; 00148 return Rect; 00149 } 00150 00151 00153 00154 double GMould::CalcTolerance( DWORD pTolerance ) 00155 { 00156 // INT32 x, y ; 00157 // x = (INT32)( ((float)Tolerance*0x10000000)/Width ) ; 00158 // y = (INT32)( ((float)Tolerance*0x10000000)/Depth ) ; 00159 if ( pTolerance==0 ) 00160 return 0.0 ; 00161 00162 double x, y ; 00163 00164 x = (double) pTolerance/Width ; 00165 y = (double) pTolerance/Depth ; 00166 00167 return 16*(x+y+2*max(x,y)) ; 00168 } 00169 00171 00172 void GMould::FitPoint( POINT a, POINT& b ) 00173 { 00174 DPOINT t ; 00175 ScaleSrc ( a, t ) ; 00176 Transform ( t, t ) ; 00177 InverseScale( t, b ) ; 00178 } 00179 00180 void GMould::FitPoint( DPOINT a, POINT& b ) 00181 { 00182 DPOINT t ; 00183 Transform ( a, t ) ; 00184 InverseScale( t, b ) ; 00185 } 00186 00187 00188 00189 BOOL GMould::GenCurve( DPOINT C2, DPOINT C4, 00190 DPOINT P0, DPOINT P2, DPOINT P4, DPOINT P6, 00191 DPOINT T0, DPOINT T2, DPOINT T4, DPOINT T6 ) 00192 { 00193 if ( Tolerance > 0 ) 00194 { 00195 double T ; 00196 DPOINT D ; 00197 DPOINT P1, P3, P5 ; 00198 DPOINT T1, T3, T5 ; 00199 DPOINT N1, N3, N5 ; 00200 P1.x = (125*P0.x+75*C2.x+15*C4.x + P6.x)/216 ; 00201 P1.y = (125*P0.y+75*C2.y+15*C4.y + P6.y)/216 ; 00202 P3.x = ( P0.x+3*(C2.x+ C4.x)+ P6.x)/8 ; 00203 P3.y = ( P0.y+3*(C2.y+ C4.y)+ P6.y)/8 ; 00204 P5.x = ( P0.x+15*C2.x+75*C4.x +125*P6.x)/216 ; 00205 P5.y = ( P0.y+15*C2.y+75*C4.y +125*P6.y)/216 ; 00206 Transform( P1, T1 ) ; 00207 Transform( P3, T3 ) ; 00208 Transform( P5, T5 ) ; 00209 N3.x = -T0.x+9*(T2.x+T4.x)-T6.x ; 00210 N3.y = -T0.y+9*(T2.y+T4.y)-T6.y ; 00211 D.x = fabs(16*T3.x-N3.x) ; 00212 D.y = fabs(16*T3.y-N3.y) ; 00213 T = D.x+D.y+2*max(D.x,D.y) ; 00214 if ( T<=Tolerance ) 00215 { 00216 N1.x = 5*(T0.x-T4.x)+15*T2.x+T6.x ; 00217 N1.y = 5*(T0.y-T4.y)+15*T2.y+T6.y ; 00218 D.x = fabs(16*T1.x-N1.x) ; 00219 D.y = fabs(16*T1.y-N1.y) ; 00220 T = D.x+D.y+2*max(D.x,D.y) ; 00221 if ( T<=Tolerance ) 00222 { 00223 N5.x = T0.x+15*T4.x+5*(T6.x-T2.x) ; 00224 N5.y = T0.y+15*T4.y+5*(T6.y-T2.y) ; 00225 D.x = fabs(16*T5.x-N5.x) ; 00226 D.y = fabs(16*T5.y-N5.y) ; 00227 T = D.x+D.y+2*max(D.x,D.y) ; 00228 } 00229 } 00230 if ( T>Tolerance ) 00231 { 00232 DPOINT CL1, CL2, CR1, CR2 ; 00233 CL1.x = (P0.x+C2.x)/2 ; 00234 CL1.y = (P0.y+C2.y)/2 ; 00235 CL2.x = (P0.x+2*C2.x+C4.x)/4 ; 00236 CL2.y = (P0.y+2*C2.y+C4.y)/4 ; 00237 CR1.x = (C2.x+2*C4.x+P6.x)/4 ; 00238 CR1.y = (C2.y+2*C4.y+P6.y)/4 ; 00239 CR2.x = (C4.x+P6.x)/2 ; 00240 CR2.y = (C4.y+P6.y)/2 ; 00241 return GenCurve( CL1, CL2, P0, P1, P2, P3, T0, T1, T2, T3 ) && 00242 GenCurve( CR1, CR2, P3, P4, P5, P6, T3, T4, T5, T6 ) ; 00243 } 00244 } 00245 if ( OLength <= 3 ) return FALSE ; 00246 OLength -= 3 ; 00247 DPOINT N2, N4 ; 00248 N2.x = (-5*T0.x+18*T2.x- 9*T4.x+2*T6.x)/6 ; 00249 N2.y = (-5*T0.y+18*T2.y- 9*T4.y+2*T6.y)/6 ; 00250 N4.x = ( 2*T0.x- 9*T2.x+18*T4.x-5*T6.x)/6 ; 00251 N4.y = ( 2*T0.y- 9*T2.y+18*T4.y-5*T6.y)/6 ; 00252 InverseScale( N2, *OPoints++ ) ; *OTypes++ = PT_BEZIERTO ; 00253 InverseScale( N4, *OPoints++ ) ; *OTypes++ = PT_BEZIERTO ; 00254 InverseScale( T6, *OPoints++ ) ; *OTypes++ = PT_BEZIERTO ; 00255 return TRUE ; 00256 } 00257 00259 00260 void GMould::ScaleSrc( POINT a, DPOINT& b ) 00261 { 00262 b.x = (double)(a.x-SrcBBox.left )/(SrcBBox.right-SrcBBox.left ) ; 00263 b.y = (double)(a.y-SrcBBox.bottom)/(SrcBBox.top -SrcBBox.bottom) ; 00264 } 00265 00266 void GMould::Scale( POINT a, DPOINT& b ) 00267 { 00268 b.x = (double)(a.x-MinX)/Width ; 00269 b.y = (double)(a.y-MinY)/Depth ; 00270 } 00271 00272 void GMould::InverseScale( DPOINT a, POINT& b ) 00273 { 00274 b.x = MinX+(INT32)(Width*a.x) ; 00275 b.y = MinY+(INT32)(Depth*a.y) ; 00276 } 00277 00280 00281 /* 00282 void GMould::PlotTile( 00283 void* pData, 00284 void PlotTriangle( 00285 void* pData, 00286 CONST POINT *PointA, CONST POINT *PointB, CONST POINT *PointC, 00287 CONST POINT *Point0, CONST POINT *Point1, CONST POINT *Point2 00288 ), 00289 CONST POINT *PointA, CONST POINT *PointB, CONST POINT *PointC, 00290 CONST INT32 Tolerance 00291 ) 00292 { 00293 POINT PointX ; 00294 PointX.x = PointB->x+PointC->x-PointA->x ; 00295 PointX.y = PointB->y+PointC->y-PointA->y ; 00296 POINT q00,q01,q10,q11 ; 00297 FitPoint( *PointA, q00 ) ; 00298 FitPoint( *PointB, q10 ) ; 00299 FitPoint( PointX, q11 ) ; 00300 FitPoint( *PointC, q01 ) ; 00301 PlotTile( 00302 pData, PlotTriangle, 00303 Tolerance, 00304 0,0,0, 00305 *PointA, *PointB, PointX, *PointC, 00306 q00, q10, q11, q01, 00307 FALSE, FALSE, FALSE, FALSE 00308 ) ; 00309 } 00310 00311 00312 00313 void GMould::PlotTile( 00314 void* pData, 00315 void PlotTriangle( 00316 void* pData, 00317 CONST POINT *PointA, CONST POINT *PointB, CONST POINT *PointC, 00318 CONST POINT *Point0, CONST POINT *Point1, CONST POINT *Point2 00319 ), 00320 CONST INT32 Tolerance, 00321 INT32 i, INT32 j, INT32 s, 00322 POINT p00, POINT p10, POINT p11, POINT p01, 00323 POINT q00, POINT q10, POINT q11, POINT q01, 00324 BOOL f00_10, BOOL f10_11, BOOL f01_11, BOOL f00_01 00325 ) 00326 { 00327 POINT a,b ; 00328 if ( s!=6 ) 00329 { 00330 if ( !f00_10 ) 00331 { 00332 a.x = (2*p00.x+p10.x)/3 ; a.y = (2*p00.y+p10.y)/3 ; FitPoint( a, a ) ; 00333 b.x = (2*q00.x+q10.x)/3 ; b.y = (2*q00.y+q10.y)/3 ; 00334 if ( abs(a.x-b.x)<=Tolerance && abs(a.y-b.y)<=Tolerance ) 00335 { 00336 a.x = (p00.x+2*p10.x)/3 ; a.y = (p00.y+2*p10.y)/3 ; FitPoint( a, a ) ; 00337 b.x = (q00.x+2*q10.x)/3 ; b.y = (q00.y+2*q10.y)/3 ; 00338 f00_10 = abs(a.x-b.x)<=Tolerance && abs(a.y-b.y)<=Tolerance ; 00339 } 00340 } 00341 if ( !f10_11 ) 00342 { 00343 a.x = (2*p10.x+p11.x)/3 ; a.y = (2*p10.y+p11.y)/3 ; FitPoint( a, a ) ; 00344 b.x = (2*q10.x+q11.x)/3 ; b.y = (2*q10.y+q11.y)/3 ; 00345 if ( abs(a.x-b.x)<=Tolerance && abs(a.y-b.y)<=Tolerance ) 00346 { 00347 a.x = (p10.x+2*p11.x)/3 ; a.y = (p10.y+2*p11.y)/3 ; FitPoint( a, a ) ; 00348 b.x = (q10.x+2*q11.x)/3 ; b.y = (q10.y+2*q11.y)/3 ; 00349 f10_11 = abs(a.x-b.x)<=Tolerance && abs(a.y-b.y)<=Tolerance ; 00350 } 00351 } 00352 if ( !f01_11 ) 00353 { 00354 a.x = (2*p01.x+p11.x)/3 ; a.y = (2*p01.y+p11.y)/3 ; FitPoint( a, a ) ; 00355 b.x = (2*q01.x+q11.x)/3 ; b.y = (2*q01.y+q11.y)/3 ; 00356 if ( abs(a.x-b.x)<=Tolerance && abs(a.y-b.y)<=Tolerance ) 00357 { 00358 a.x = (p01.x+2*p11.x)/3 ; a.y = (p01.y+2*p11.y)/3 ; FitPoint( a, a ) ; 00359 b.x = (q01.x+2*q11.x)/3 ; b.y = (q01.y+2*q11.y)/3 ; 00360 f01_11 = abs(a.x-b.x)<=Tolerance && abs(a.y-b.y)<=Tolerance ; 00361 } 00362 } 00363 if ( !f00_01 ) 00364 { 00365 a.x = (2*p00.x+p01.x)/3 ; a.y = (2*p00.y+p01.y)/3 ; FitPoint( a, a ) ; 00366 b.x = (2*q00.x+q01.x)/3 ; b.y = (2*q00.y+q01.y)/3 ; 00367 if ( abs(a.x-b.x)<=Tolerance && abs(a.y-b.y)<=Tolerance ) 00368 { 00369 a.x = (p00.x+2*p01.x)/3 ; a.y = (p00.y+2*p01.y)/3 ; FitPoint( a, a ) ; 00370 b.x = (q00.x+2*q01.x)/3 ; b.y = (q00.y+2*q01.y)/3 ; 00371 f00_01 = abs(a.x-b.x)<=Tolerance && abs(a.y-b.y)<=Tolerance ; 00372 } 00373 } 00374 } 00375 if ( s==6 || (f00_10 && f10_11 && f01_11 && f00_01) ) 00376 PlotTriangles( pData, PlotTriangle, i,j,s, q00, q10, q11, q01 ) ; 00377 else 00378 { 00379 POINT p00_10, p10_11, p01_11, p00_01, p ; 00380 POINT q00_10, q10_11, q01_11, q00_01, q ; 00381 p00_10.x = (p00.x+p10.x)/2 ; p00_10.y = (p00.y+p10.y)/2 ; 00382 p10_11.x = (p10.x+p11.x)/2 ; p10_11.y = (p10.y+p11.y)/2 ; 00383 p01_11.x = (p01.x+p11.x)/2 ; p01_11.y = (p01.y+p11.y)/2 ; 00384 p00_01.x = (p00.x+p01.x)/2 ; p00_01.y = (p00.y+p01.y)/2 ; 00385 p.x = (p00.x+p11.x)/2 ; p.y = (p00.y+p11.y)/2 ; 00386 if ( f00_10 ) { q00_10.x = (q00.x+q10.x)/2 ; q00_10.y = (q00.y+q10.y)/2 ; } else FitPoint( p00_10, q00_10 ) ; 00387 if ( f10_11 ) { q10_11.x = (q10.x+q11.x)/2 ; q10_11.y = (q10.y+q11.y)/2 ; } else FitPoint( p10_11, q10_11 ) ; 00388 if ( f01_11 ) { q01_11.x = (q01.x+q11.x)/2 ; q01_11.y = (q01.y+q11.y)/2 ; } else FitPoint( p01_11, q01_11 ) ; 00389 if ( f00_01 ) { q00_01.x = (q00.x+q01.x)/2 ; q00_01.y = (q00.y+q01.y)/2 ; } else FitPoint( p00_01, q00_01 ) ; 00390 FitPoint( p, q ) ; 00391 i <<= 1 ; 00392 j <<= 1 ; 00393 s++ ; 00394 PlotTile( 00395 pData, PlotTriangle, Tolerance, i,j,s, 00396 p00, p00_10, p, p00_01, 00397 q00, q00_10, q, q00_01, 00398 f00_10, FALSE, FALSE, f00_01 00399 ) ; 00400 PlotTile( 00401 pData, PlotTriangle, Tolerance, i+1,j,s, 00402 p00_10, p10, p10_11, p, 00403 q00_10, q10, q10_11, q, 00404 f00_10, f10_11, FALSE, FALSE 00405 ) ; 00406 PlotTile( 00407 pData, PlotTriangle, Tolerance, i,j+1,s, 00408 p00_01, p, p01_11, p01, 00409 q00_01, q, q01_11, q01, 00410 FALSE, FALSE, f01_11, f00_01 00411 ) ; 00412 PlotTile( 00413 pData, PlotTriangle, Tolerance, i+1,j+1,s, 00414 p, p10_11, p11, p01_11, 00415 q, q10_11, q11, q01_11, 00416 FALSE, f10_11, f01_11, FALSE 00417 ) ; 00418 } 00419 } 00420 00422 00423 void GMould::PlotTile4( 00424 void* pData, 00425 void PlotTriangle( 00426 void* pData, 00427 CONST POINT *PointA, CONST POINT *PointB, CONST POINT *PointC, 00428 CONST POINT *Point0, CONST POINT *Point1, CONST POINT *Point2 00429 ), 00430 CONST POINT *PointA, CONST POINT *PointB, CONST POINT *PointC, CONST POINT *PointD, 00431 CONST INT32 Tolerance 00432 ) 00433 { 00434 POINT PerspectivePoints[4] ; 00435 PerspectivePoints[0] = *PointA ; 00436 PerspectivePoints[1] = *PointB ; 00437 PerspectivePoints[2] = *PointC ; 00438 PerspectivePoints[3] = *PointD ; 00439 RECT BBox = { 0,0,1,1 } ; 00440 GPerspective Per ; 00441 Per.Define( PerspectivePoints, &BBox, 0 ) ; 00442 00443 POINT p00,p01,p10,p11 ; 00444 POINT q00,q01,q10,q11 ; 00445 DPOINT a ; 00446 a.x = 0.0 ; a.y = 0.0 ; Per.FitPoint( a, p00 ) ; FitPoint( p00, q00 ) ; 00447 a.x = 1.0 ; a.y = 0.0 ; Per.FitPoint( a, p10 ) ; FitPoint( p10, q10 ) ; 00448 a.x = 1.0 ; a.y = 1.0 ; Per.FitPoint( a, p11 ) ; FitPoint( p11, q11 ) ; 00449 a.x = 0.0 ; a.y = 1.0 ; Per.FitPoint( a, p01 ) ; FitPoint( p01, q01 ) ; 00450 00451 PlotTile4( 00452 pData, PlotTriangle, 00453 Tolerance, 00454 &Per, 00455 0,0,0, 00456 p00, p10, p11, p01, 00457 q00, q10, q11, q01, 00458 FALSE, FALSE, FALSE, FALSE 00459 ) ; 00460 } 00461 00462 00463 00464 void GMould::PlotTile4( 00465 void* pData, 00466 void PlotTriangle( 00467 void* pData, 00468 CONST POINT *PointA, CONST POINT *PointB, CONST POINT *PointC, 00469 CONST POINT *Point0, CONST POINT *Point1, CONST POINT *Point2 00470 ), 00471 CONST INT32 Tolerance, 00472 GPerspective* Per, 00473 INT32 i, INT32 j, INT32 s, 00474 POINT p00, POINT p10, POINT p11, POINT p01, 00475 POINT q00, POINT q10, POINT q11, POINT q01, 00476 BOOL f00_10, BOOL f10_11, BOOL f01_11, BOOL f00_01 00477 ) 00478 { 00479 DPOINT A ; 00480 POINT a,b ; 00481 double S = 1.0/(1<<s) ; 00482 double I = S*i ; 00483 double J = S*j ; 00484 double S12 = S/2.0 ; 00485 double S13 = S/3.0 ; 00486 double S23 = S13*2.0 ; 00487 if ( s!=6 ) 00488 { 00489 if ( !f00_10 ) 00490 { 00491 A.x = I+S13 ; A.y = J ; Per->FitPoint( A,a ) ; FitPoint( a,a ) ; 00492 b.x = (2*q00.x+q10.x)/3 ; b.y = (2*q00.y+q10.y)/3 ; 00493 if ( abs(a.x-b.x)<=Tolerance && abs(a.y-b.y)<=Tolerance ) 00494 { 00495 A.x = I+S23 ; A.y = J ; Per->FitPoint( A,a ) ; FitPoint( a,a ) ; 00496 b.x = (q00.x+2*q10.x)/3 ; b.y = (q00.y+2*q10.y)/3 ; 00497 f00_10 = abs(a.x-b.x)<=Tolerance && abs(a.y-b.y)<=Tolerance ; 00498 } 00499 } 00500 if ( !f10_11 ) 00501 { 00502 A.x = I+S ; A.y = J+S13 ; Per->FitPoint( A,a ) ; FitPoint( a,a ) ; 00503 b.x = (2*q10.x+q11.x)/3 ; b.y = (2*q10.y+q11.y)/3 ; 00504 if ( abs(a.x-b.x)<=Tolerance && abs(a.y-b.y)<=Tolerance ) 00505 { 00506 A.x = I+S ; A.y = J+S23 ; Per->FitPoint( A,a ) ; FitPoint( a,a ) ; 00507 b.x = (q10.x+2*q11.x)/3 ; b.y = (q10.y+2*q11.y)/3 ; 00508 f10_11 = abs(a.x-b.x)<=Tolerance && abs(a.y-b.y)<=Tolerance ; 00509 } 00510 } 00511 if ( !f01_11 ) 00512 { 00513 A.x = I+S13 ; A.y = J+S ; Per->FitPoint( A,a ) ; FitPoint( a,a ) ; 00514 b.x = (2*q01.x+q11.x)/3 ; b.y = (2*q01.y+q11.y)/3 ; 00515 if ( abs(a.x-b.x)<=Tolerance && abs(a.y-b.y)<=Tolerance ) 00516 { 00517 A.x = I+S23 ; A.y = J+S ; Per->FitPoint( A,a ) ; FitPoint( a,a ) ; 00518 b.x = (q01.x+2*q11.x)/3 ; b.y = (q01.y+2*q11.y)/3 ; 00519 f01_11 = abs(a.x-b.x)<=Tolerance && abs(a.y-b.y)<=Tolerance ; 00520 } 00521 } 00522 if ( !f00_01 ) 00523 { 00524 A.x = I ; A.y = J+S13 ; Per->FitPoint( A,a ) ; FitPoint( a,a ) ; 00525 b.x = (2*q00.x+q01.x)/3 ; b.y = (2*q00.y+q01.y)/3 ; 00526 if ( abs(a.x-b.x)<=Tolerance && abs(a.y-b.y)<=Tolerance ) 00527 { 00528 A.x = I ; A.y = J+S23 ; Per->FitPoint( A,a ) ; FitPoint( a,a ) ; 00529 b.x = (q00.x+2*q01.x)/3 ; b.y = (q00.y+2*q01.y)/3 ; 00530 f00_01 = abs(a.x-b.x)<=Tolerance && abs(a.y-b.y)<=Tolerance ; 00531 } 00532 } 00533 } 00534 if ( s==6 || (f00_10 && f10_11 && f01_11 && f00_01) ) 00535 PlotTriangles( pData, PlotTriangle, i,j,s, q00, q10, q11, q01 ) ; 00536 else 00537 { 00538 POINT p00_10, p10_11, p01_11, p00_01, p ; 00539 POINT q00_10, q10_11, q01_11, q00_01, q ; 00540 A.x = I+S12 ; A.y = J ; Per->FitPoint( A,p00_10 ) ; 00541 A.x = I+S ; A.y = J+S12 ; Per->FitPoint( A,p10_11 ) ; 00542 A.x = I+S12 ; A.y = J+S ; Per->FitPoint( A,p01_11 ) ; 00543 A.x = I ; A.y = J+S12 ; Per->FitPoint( A,p00_01 ) ; 00544 A.x = I+S12 ; A.y = J+S12 ; Per->FitPoint( A,p ) ; 00545 if ( f00_10 ) { q00_10.x = (q00.x+q10.x)/2 ; q00_10.y = (q00.y+q10.y)/2 ; } else FitPoint( p00_10, q00_10 ) ; 00546 if ( f10_11 ) { q10_11.x = (q10.x+q11.x)/2 ; q10_11.y = (q10.y+q11.y)/2 ; } else FitPoint( p10_11, q10_11 ) ; 00547 if ( f01_11 ) { q01_11.x = (q01.x+q11.x)/2 ; q01_11.y = (q01.y+q11.y)/2 ; } else FitPoint( p01_11, q01_11 ) ; 00548 if ( f00_01 ) { q00_01.x = (q00.x+q01.x)/2 ; q00_01.y = (q00.y+q01.y)/2 ; } else FitPoint( p00_01, q00_01 ) ; 00549 FitPoint( p, q ) ; 00550 i <<= 1 ; 00551 j <<= 1 ; 00552 s++ ; 00553 PlotTile4( 00554 pData, PlotTriangle, Tolerance, Per, i,j,s, 00555 p00, p00_10, p, p00_01, 00556 q00, q00_10, q, q00_01, 00557 f00_10, FALSE, FALSE, f00_01 00558 ) ; 00559 PlotTile4( 00560 pData, PlotTriangle, Tolerance, Per, i+1,j,s, 00561 p00_10, p10, p10_11, p, 00562 q00_10, q10, q10_11, q, 00563 f00_10, f10_11, FALSE, FALSE 00564 ) ; 00565 PlotTile4( 00566 pData, PlotTriangle, Tolerance, Per, i,j+1,s, 00567 p00_01, p, p01_11, p01, 00568 q00_01, q, q01_11, q01, 00569 FALSE, FALSE, f01_11, f00_01 00570 ) ; 00571 PlotTile4( 00572 pData, PlotTriangle, Tolerance, Per, i+1,j+1,s, 00573 p, p10_11, p11, p01_11, 00574 q, q10_11, q11, q01_11, 00575 FALSE, f10_11, f01_11, FALSE 00576 ) ; 00577 } 00578 } 00579 00581 00582 void GMould::PlotTriangles( 00583 void* pData, 00584 void PlotTriangle( 00585 void* pData, 00586 CONST POINT *PointA, CONST POINT *PointB, CONST POINT *PointC, 00587 CONST POINT *Point0, CONST POINT *Point1, CONST POINT *Point2 00588 ), 00589 INT32 i, INT32 j, INT32 s, 00590 POINT q00, POINT q10, POINT q11, POINT q01 00591 ) 00592 { 00593 POINT a,b,c ; 00594 if ( (i^j) & 1 ) 00595 { 00596 a.x = q00.x-i*(q10.x-q00.x)-j*(q01.x-q00.x) ; 00597 a.y = q00.y-i*(q10.y-q00.y)-j*(q01.y-q00.y) ; 00598 b.x = a.x+(q10.x-q00.x << s) ; b.y = a.y+(q10.y-q00.y << s) ; 00599 c.x = a.x+(q01.x-q00.x << s) ; c.y = a.y+(q01.y-q00.y << s) ; 00600 PlotTriangle( pData, &a,&b,&c, &q00,&q01,&q10 ) ; 00601 a.x = q11.x-(i+1)*(q11.x-q01.x)-(j+1)*(q11.x-q10.x) ; 00602 a.y = q11.y-(i+1)*(q11.y-q01.y)-(j+1)*(q11.y-q10.y) ; 00603 b.x = a.x+(q11.x-q01.x << s) ; b.y = a.y+(q11.y-q01.y << s) ; 00604 c.x = a.x+(q11.x-q10.x << s) ; c.y = a.y+(q11.y-q10.y << s) ; 00605 PlotTriangle( pData, &a,&b,&c, &q11,&q01,&q10 ) ; 00606 } 00607 else 00608 { 00609 a.x = q00.x-i*(q11.x-q01.x)-j*(q01.x-q00.x) ; 00610 a.y = q00.y-i*(q11.y-q01.y)-j*(q01.y-q00.y) ; 00611 b.x = a.x+(q11.x-q01.x << s) ; b.y = a.y+(q11.y-q01.y << s) ; 00612 c.x = a.x+(q01.x-q00.x << s) ; c.y = a.y+(q01.y-q00.y << s) ; 00613 PlotTriangle( pData, &a,&b,&c, &q00,&q01,&q11 ) ; 00614 a.x = q00.x-i*(q10.x-q00.x)-j*(q11.x-q10.x) ; 00615 a.y = q00.y-i*(q10.y-q00.y)-j*(q11.y-q10.y) ; 00616 b.x = a.x+(q10.x-q00.x << s) ; b.y = a.y+(q10.y-q00.y << s) ; 00617 c.x = a.x+(q11.x-q10.x << s) ; c.y = a.y+(q11.y-q10.y << s) ; 00618 PlotTriangle( pData, &a,&b,&c, &q00,&q10,&q11 ) ; 00619 } 00620 } 00621 00623 */
1.4.4