/* WARNING: This file was generated by dkct. Changes you make here will be lost if dkct is run again! You should modify the original source and run dkct on it. Original source: dk3figbb.ctr */ /* Copyright (C) 2012-2017, Dirk Krause Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above opyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of the author nor the names of contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /** @file dk3figbb.c The dk3figbb module. */ #line 126 "dk3figbb.ctr" #include "dk3all.h" #include "dk3fig.h" #include "dk3bb.h" #include "dk3xsp.h" #include "dk3bezcu.h" #include "dk3figto.h" #include "dk3figbb.h" #line 138 "dk3figbb.ctr" /** Check whether a value is in a given range. @param min Interval minimum. @param max Interval maximum. @param val Value to check. @return 1 if the value is in the interval, 0 otherwise. */ static int dk3fig_bb_in_range(double min, double max, double val) { int back = 0; if(min <= val) { if(max >= val) { back = 1; } } return back; } double dk3figbb_distance_point_line( double xp, double yp, double beta, int *ec ) { double sinbeta; /* Sinus of angle. */ double cosbeta; /* Cosinus of angle. */ double deltax; /* X difference. */ double deltay; /* Y difference. */ double back; #line 176 "dk3figbb.ctr" sinbeta = sin(beta); cosbeta = cos(beta); deltax = dk3ma_d_sub_ok( xp, (dk3ma_d_add_ok((yp * sinbeta), (xp * cosbeta), ec) * cosbeta), ec ); deltay = dk3ma_d_sub_ok( yp, (dk3ma_d_add_ok((yp * sinbeta), (xp * cosbeta), ec) * sinbeta), ec ); back = sqrt( dk3ma_d_add_ok( dk3ma_d_mul_ok(deltax, deltax, ec), dk3ma_d_mul_ok(deltay, deltay, ec), ec ) ); #line 195 "dk3figbb.ctr" return back; } int dk3fig_bb_add_ellipse( dk3_bb_t *bb, dk3_fig_det_ell_t const *elli, double lw ) { double h; /* Height. */ double w; /* Width. */ double x; /* X coordinate of point. */ double y; /* Y coordinate of point. */ double th; /* Parameter t for Ph. */ double tw; /* Parameter t for Pw. */ double pma; /* Pi minus alpha. */ double hpma; /* Half pi minus alpha. */ int back = 0; int ec = 0; /* Error code for math. */ int r; /* Result from dk3bb_add. */ #line 219 "dk3figbb.ctr" if((bb) && (elli)) { back = 1; #line 222 "dk3figbb.ctr" #line 223 "dk3figbb.ctr" #line 224 "dk3figbb.ctr" #line 225 "dk3figbb.ctr" #line 226 "dk3figbb.ctr" if(fabs(elli->an) > 1.0e-6) { #line 227 "dk3figbb.ctr" pma = dk3ma_d_sub_ok(M_PI, elli->an, &ec); hpma = dk3ma_d_sub_ok(M_PI_2, elli->an, &ec); th = dk3ma_d_atan2( (-1.0 * (elli->ry) * cos(pma)), ((elli->rx) * sin(pma)) ); #line 233 "dk3figbb.ctr" x = (elli->rx) * cos(th); y = (elli->ry) * sin(th); #line 235 "dk3figbb.ctr" h = dk3figbb_distance_point_line( x, y, (-1.0 * (elli->an)), &ec ); #line 238 "dk3figbb.ctr" tw = dk3ma_d_atan2( (-1.0 * (elli->ry) * cos(hpma)), ((elli->rx) * sin(hpma)) ); #line 242 "dk3figbb.ctr" x = (elli->rx) * cos(tw); y = (elli->ry) * cos(tw); #line 244 "dk3figbb.ctr" w = dk3figbb_distance_point_line( x, y, dk3ma_d_sub_ok(M_PI_2, (elli->an), &ec), &ec ); #line 247 "dk3figbb.ctr" r = dk3bb_add_y_width( bb, dk3ma_d_sub_ok(elli->cy, h, &ec), (0.5 * lw) ); if(!(r)) { back = 0; } r = dk3bb_add_y_width( bb, dk3ma_d_add_ok(elli->cy, h, &ec), (0.5 * lw) ); if(!(r)) { back = 0; } r = dk3bb_add_x_width( bb, dk3ma_d_sub_ok(elli->cx, w, &ec), (0.5 * lw) ); if(!(r)) { back = 0; } r = dk3bb_add_x_width( bb, dk3ma_d_add_ok(elli->cx, w, &ec), (0.5 * lw) ); if(!(r)) { back = 0; } } else { #line 272 "dk3figbb.ctr" r = dk3bb_add_y_width( bb, dk3ma_d_sub_ok(elli->cy, elli->ry, &ec), (0.5 * lw) ); if(!(r)) { back = 0; } r = dk3bb_add_y_width( bb, dk3ma_d_add_ok(elli->cy, elli->ry, &ec), (0.5 * lw) ); if(!(r)) { back = 0; } r = dk3bb_add_x_width( bb, dk3ma_d_sub_ok(elli->cx, elli->rx, &ec), (0.5 * lw) ); if(!(r)) { back = 0; } r = dk3bb_add_x_width( bb, dk3ma_d_add_ok(elli->cx, elli->rx, &ec), (0.5 * lw) ); if(!(r)) { back = 0; } } } if(ec) { back = 0; } #line 299 "dk3figbb.ctr" return back; } int dk3fig_bb_add_arc( dk3_bb_t *bb, dk3_fig_det_arc_t const *arc, int cl, double lw ) { double min; /* Minimum angle. */ double max; /* Maximum angle. */ int back = 0; int ec = 0; /* Mathematical error code. */ #line 317 "dk3figbb.ctr" if((bb) && (arc)) { back = 1; if(!dk3bb_point_width(bb, arc->x1, arc->y1, lw)) { back = 0; } if(!dk3bb_point_width(bb, arc->x2, arc->y2, lw)) { back = 0; } if(!dk3bb_point_width(bb, arc->x3, arc->y3, lw)) { back = 0; } if(cl) { if(!dk3bb_point_width(bb, arc->xc, arc->yc, lw)) { back = 0; } } if(arc->ae >= arc->as) { min = arc->as; max = arc->ae; } else { min = arc->ae; max = arc->as; } #line 328 "dk3figbb.ctr" if(dk3fig_bb_in_range(min, max, 0.0)) { #line 329 "dk3figbb.ctr" if(!dk3bb_add_x_width(bb, dk3ma_d_add_ok(arc->xc, arc->ra, &ec), lw)) { back = 0; } } if(dk3fig_bb_in_range(min, max, M_PI_2)) { #line 334 "dk3figbb.ctr" if(!dk3bb_add_y_width(bb, dk3ma_d_add_ok(arc->yc, arc->ra, &ec), lw)) { back = 0; } } if(dk3fig_bb_in_range(min, max, M_PI)) { #line 339 "dk3figbb.ctr" if(!dk3bb_add_x_width(bb, dk3ma_d_sub_ok(arc->xc, arc->ra, &ec), lw)) { back = 0; } } if(dk3fig_bb_in_range(min, max, (3.0 * M_PI_2))) { #line 344 "dk3figbb.ctr" if(!dk3bb_add_y_width(bb, dk3ma_d_sub_ok(arc->yc, arc->ra, &ec), lw)) { back = 0; } } if(dk3fig_bb_in_range(min, max, (2.0 * M_PI))) { #line 349 "dk3figbb.ctr" if(!dk3bb_add_x_width(bb, dk3ma_d_add_ok(arc->xc, arc->ra, &ec), lw)) { back = 0; } } if(dk3fig_bb_in_range(min, max, (5.0 * M_PI_2))) { #line 354 "dk3figbb.ctr" if(!dk3bb_add_y_width(bb, dk3ma_d_add_ok(arc->yc, arc->ra, &ec), lw)) { back = 0; } } if(dk3fig_bb_in_range(min, max, (3.0 * M_PI))) { #line 359 "dk3figbb.ctr" if(!dk3bb_add_x_width(bb, dk3ma_d_sub_ok(arc->xc, arc->ra, &ec), lw)) { back = 0; } } if(dk3fig_bb_in_range(min, max, (7.0 * M_PI_2))) { #line 364 "dk3figbb.ctr" if(!dk3bb_add_y_width(bb, dk3ma_d_sub_ok(arc->yc, arc->ra, &ec), lw)) { back = 0; } } if(dk3fig_bb_in_range(min, max, (4.0 * M_PI))) { #line 369 "dk3figbb.ctr" if(!dk3bb_add_x_width(bb, dk3ma_d_add_ok(arc->xc, arc->ra, &ec), lw)) { back = 0; } } } if(ec) { back = 0; } #line 377 "dk3figbb.ctr" return back; } int dk3fig_bb_add_polyline( dk3_bb_t *bb, dk3_fig_det_pol_t const *pol, double lw ) { dk3_fig_poly_point_t const *ptr; /* Current point. */ size_t num; /* Index of current point. */ int back = 0; #line 394 "dk3figbb.ctr" if((bb) && (pol)) { if((pol->po) && (0 < pol->np)) { back = 1; ptr = pol->po; num = pol->np; while(num--) { if(!dk3bb_point_width(bb, ptr->x, ptr->y, lw)) { back = 0; } ptr++; } } } #line 405 "dk3figbb.ctr" return back; } int dk3fig_bb_add_text( dk3_bb_t *bb, dk3_fig_det_txt_t const *txt, double res, int bbts ) { double ymax; /* Maximum y. */ int back = 0; int ec = 0; /* Mathematical error code. */ #line 422 "dk3figbb.ctr" if((bb) && (txt)) { back = 1; dk3bb_point(bb, txt->x, txt->y); /* 2013-02-03: Y value is used only if bbts is set. */ /* 2012-12-01: Y values grow downwards in Fig space, so we must substract instead of add. */ if(bbts) { ymax = dk3ma_d_sub_ok( txt->y, dk3ma_d_mul_ok(res, (txt->fs / 72.72), &ec), &ec ); #line 436 "dk3figbb.ctr" dk3bb_point(bb, txt->x, ymax); } if(ec) { back = 0; } } #line 442 "dk3figbb.ctr" return back; } /** Add X-spline segment to bounding box. @param bb Bounding box structure to modify. @param pa Point A (left neighbour of segment). @param pb Point B (start of segment). @param pc Point C (end of segment). @param pd Point D (right neighbour of segment). @param xssbs Number of Bezier spline segments per X-spline segment. @param cb Flag: Compatibility to XFig interpolated spline bug. @param ra Radius of points. @return 1 on success, 0 on error. */ static int dk3fig_bb_add_xpline_segment( dk3_bb_t *bb, dk3_fig_spline_point_t *pa, dk3_fig_spline_point_t *pb, dk3_fig_spline_point_t *pc, dk3_fig_spline_point_t *pd, size_t xssbs, int cb, double ra ) { dk3_xspline_segment_t xseg; /* Spline segment. */ double x; /* Current x. */ double y; /* Current y. */ double lastx; /* Previous x. */ double lasty; /* Previous y. */ double dxdt; /* X derived. */ double dydt; /* Y derived. */ double lastdxdt; /* X derived, previous value. */ double lastdydt; /* Y derived, previous value. */ double xp; /* Start control point x. */ double yp; /* Start control point y. */ double xm; /* End control point x. */ double ym; /* End control point y. */ double t; /* Current t value. */ double dxssbs; /* Number of sub segments. */ double d3; /* Scale factor for derivatives. */ size_t i; /* Current sub segment. */ int back = 1; int mec = 0; /* Mathematical error code. */ #line 491 "dk3figbb.ctr" dk3xsp_reset(&xseg); if(cb) { dk3xsp_set_cb(&xseg, cb); } dk3xsp_set(&xseg, pa, pb, pc, pd); if(dk3xsp_calculate(&xseg, 0.0, 1)) { #line 495 "dk3figbb.ctr" dxssbs = (double)xssbs; d3 = dk3ma_d_mul_ok(3.0, dxssbs, &mec); lastx = dk3xsp_get_x(&xseg); lasty = dk3xsp_get_y(&xseg); lastdxdt = dk3xsp_get_dxdt(&xseg); lastdydt = dk3xsp_get_dydt(&xseg); for(i = 1; i <= xssbs; i++) { if(i < xssbs) { t = (double)i / dxssbs; } else { t = 1.0; } if(dk3xsp_calculate(&xseg, t, 1)) { x = dk3xsp_get_x(&xseg); y = dk3xsp_get_y(&xseg); dxdt = dk3xsp_get_dxdt(&xseg); dydt = dk3xsp_get_dydt(&xseg); xp = dk3ma_d_add_ok( lastx, dk3ma_d_div_ok(lastdxdt, d3, &mec), &mec ); yp = dk3ma_d_add_ok( lasty, dk3ma_d_div_ok(lastdydt, d3, &mec), &mec ); xm = dk3ma_d_sub_ok( x, dk3ma_d_div_ok(dxdt, d3, &mec), &mec ); ym = dk3ma_d_sub_ok( y, dk3ma_d_div_ok(dydt, d3, &mec), &mec ); if(!dk3bezier_bb(bb, lastx, lasty, xp, yp, xm, ym, x, y, ra, &mec)) { back = 0; #line 534 "dk3figbb.ctr" } lastx = x; lasty = y; lastdxdt = dxdt; lastdydt = dydt; } else { #line 540 "dk3figbb.ctr" back = 0; } } } else { #line 544 "dk3figbb.ctr" back = 0; } if(mec) { #line 547 "dk3figbb.ctr" back = 0; } #line 549 "dk3figbb.ctr" return back; } int dk3fig_bb_add_spline( dk3_fig_drawing_t *drw, dk3_bb_t *bb, dk3_fig_det_spl_t const *spl, double lw, int primobj, int iscl ) { dk3_fig_spline_point_t *pa; /* Point A. */ dk3_fig_spline_point_t *pb; /* Point B. */ dk3_fig_spline_point_t *pc; /* Point C. */ dk3_fig_spline_point_t *pd; /* Point D. */ size_t xssbs; /* Bezier segments per X-spline segment. */ size_t cs; /* Current X-spline segment. */ int back = 0; #line 572 "dk3figbb.ctr" if((bb) && (spl)) { if((spl->po) && (((iscl) ? (size_t)2 : (size_t)1) < spl->np)) { back = 1; xssbs = dk3fig_tool_xssbs(drw, primobj); if(iscl) { #line 577 "dk3figbb.ctr" for(cs = 0; cs < (spl->np); cs++) { pb = &((spl->po)[cs]); pc = &((spl->po)[((cs < (spl->np - 1)) ? (cs + 1) : 0)]); pa = &((spl->po)[(cs > 0) ? (cs - 1) : ((spl->np) - 1)]); pd = &((spl->po)[(cs < (spl->np - 2))?(cs + 2):(cs + 2 - spl->np)]); if(!dk3fig_bb_add_xpline_segment(bb,pa,pb,pc,pd,xssbs,drw->cosp,lw)) { back = 0; } } } else { #line 587 "dk3figbb.ctr" for(cs = 0; cs < ((spl->np) - 1); cs++) { pa = pd = NULL; pb = &((spl->po)[cs]); pc = &((spl->po)[cs + 1]); if(0 < cs) { pa = &((spl->po)[cs - 1]); } if(cs < ((spl->np) - 2)) { pd = &((spl->po)[cs + 2]); } if(!dk3fig_bb_add_xpline_segment(bb,pa,pb,pc,pd,xssbs,drw->cosp,lw)) { back = 0; } } } } else { #line 599 "dk3figbb.ctr" } } #line 601 "dk3figbb.ctr" return back; } int dk3fig_bb_add_hci( dk3_bb_t *outbb, dk3_fig_det_hci_t const *hci, double ra ) { dk3_fig_poly_point_t po[3]; /* End and middle point of arc. */ size_t i; /* Used as index when rotating. */ int back = 0; int mec = 0; /* Mathematical error code. */ if((outbb) && (hci)) { po[0].x = 0.0; po[0].y = hci->ra; po[1].x = -1.0 * hci->ra; po[1].y = 0.0; po[2].x = 0.0; po[2].y = -1.0 * hci->ra; for(i = 0; i < 3; i++) { dk3fig_tool_rotate_point(&(po[i]), hci->an, &mec); dk3fig_tool_shift_point( &(po[i]), hci->cx, hci->cy, &mec ); } if(0 == mec) { back = 1; if(!dk3bb_point_width(outbb, po[0].x, po[0].y, ra)) { back = 0; } if(!dk3bb_point_width(outbb, po[1].x, po[1].y, ra)) { back = 0; } if(!dk3bb_point_width(outbb, po[2].x, po[2].y, ra)) { back = 0; } /* ##### HIER WEITER: Weitere Punkte je nach Drehung */ } } return back; }