Initial import of xtrkcad version 1:4.0.2-2

1 files changed, 1662 insertions, 0 deletions

diff --git a/app/bin/trkseg.c b/app/bin/trkseg.c
new file mode 100644
index 0000000..ff3725c
--- /dev/null
+++ b/app/bin/trkseg.c
@@ -0,0 +1,1662 @@
+/*
+ * $Header: /home/dmarkle/xtrkcad-fork-cvs/xtrkcad/app/bin/trkseg.c,v 1.2 2006-05-30 16:11:55 m_fischer Exp $
+ */
+
+/*  XTrkCad - Model Railroad CAD
+ *  Copyright (C) 2005 Dave Bullis
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <time.h>
+#include <ctype.h>
+#include <stdarg.h>
+#include "track.h"
+#include "cjoin.h"
+
+/*****************************************************************************
+ *
+ * TRACK SEGMENTS
+ *
+ */
+
+EXPORT void ComputeCurvedSeg(
+		trkSeg_p s,
+		DIST_T radius,
+		coOrd p0,
+		coOrd p1 )
+{
+	DIST_T d;
+	ANGLE_T a, aa, aaa;
+	s->u.c.radius = radius;
+	d = FindDistance( p0, p1 )/2.0;
+	a = FindAngle( p0, p1 );
+	if (radius > 0) {
+		aa = R2D(asin( d/radius ));
+		aaa = a + (90.0 - aa);
+		Translate( &s->u.c.center, p0, aaa, radius );
+		s->u.c.a0 = NormalizeAngle( aaa + 180.0 );
+		s->u.c.a1 = aa*2.0;
+	} else {
+		aa = R2D(asin( d/(-radius) ));
+		aaa = a - (90.0 - aa);
+		Translate( &s->u.c.center, p0, aaa, -radius );
+		s->u.c.a0 = NormalizeAngle( aaa + 180.0 - aa *2.0 );
+		s->u.c.a1 = aa*2.0;
+	}
+}
+
+
+EXPORT coOrd GetSegEndPt(
+		trkSeg_p segPtr,
+		EPINX_T ep,
+		BOOL_T bounds,
+		ANGLE_T * angleR )
+{
+	coOrd pos;
+	ANGLE_T angle, a, a0, a1;
+	DIST_T r;
+	POS_T x0, y0, x1, y1;
+
+	switch (segPtr->type) {
+	case SEG_STRTRK:
+	case SEG_STRLIN:
+	case SEG_DIMLIN:
+	case SEG_BENCH:
+	case SEG_TBLEDGE:
+		pos = segPtr->u.l.pos[ep];
+		angle = FindAngle( segPtr->u.l.pos[1-ep], segPtr->u.l.pos[ep] );
+		break;
+	case SEG_CRVLIN:
+	case SEG_CRVTRK:
+		a0 = segPtr->u.c.a0;
+		a1 = segPtr->u.c.a1;
+		r = fabs( segPtr->u.c.radius );
+		a = a0;
+		if ( (ep==1) == (segPtr->u.c.radius>0) ) {
+			a += a1;
+			angle = NormalizeAngle( a+90 );
+		} else {
+			angle = NormalizeAngle( a-90 );
+		}
+		if (bounds) {
+			x0 = r * sin(D2R(a0));
+			x1 = r * sin(D2R(a0+a1));
+			y0 = r * cos(D2R(a0));
+			y1 = r * cos(D2R(a0+a1));
+			if (ep == 0) {
+				pos.x = segPtr->u.c.center.x + (((a0<=270.0)&&(a0+a1>=270.0)) ?
+						(-r) : min(x0,x1));
+				pos.y = segPtr->u.c.center.y + (((a0<=180.0)&&(a0+a1>=180.0)) ?
+						(-r) : min(y0,y1));
+			} else {
+				pos.x = segPtr->u.c.center.x + (((a0<= 90.0)&&(a0+a1>= 90.0)) ?
+						(r) : max(x0,x1));
+				pos.y = segPtr->u.c.center.y + ((a0+a1>=360.0) ?
+						(r) : max(y0,y1));
+			}
+		} else {
+			PointOnCircle( &pos, segPtr->u.c.center, fabs(segPtr->u.c.radius), a );
+		}
+		break;
+	case SEG_JNTTRK:
+		pos = GetJointSegEndPos( segPtr->u.j.pos, segPtr->u.j.angle, segPtr->u.j.l0, segPtr->u.j.l1, segPtr->u.j.R, segPtr->u.j.L, segPtr->u.j.negate, segPtr->u.j.flip, segPtr->u.j.Scurve, ep, &angle );
+		break;
+	default:
+		AbortProg("GetSegCntPt(%c)", segPtr->type );
+	}
+	if ( angleR )
+		*angleR = angle;
+	return pos;
+}
+
+/**
+ * Caclulate the bounding box for a string. 
+ *
+ * \param coOrd IN position of text
+ * \param angle IN text angle
+ * \param str IN the string
+ * \param fs IN size of font
+ * \param loR OUT bottom left corner
+ * \param hiR OUT top right corner
+ * \return    describe the return value
+ */
+
+EXPORT void GetTextBounds(
+		coOrd pos,
+		ANGLE_T angle,
+		char * str,
+		FONTSIZE_T fs,
+		coOrd * loR,
+		coOrd * hiR )
+{
+	coOrd size;
+	POS_T descent;
+	coOrd lo, hi;
+	coOrd p[4];
+	int i;
+
+	DrawTextSize2( &mainD, str, NULL, fs, FALSE, &size, &descent );
+	
+	// set up the corners of the rectangle
+	p[0].x = p[3].x = 0.0;
+	p[1].x = p[2].x = size.x;
+	p[0].y = p[1].y = -descent;
+	p[2].y = p[3].y = size.y;
+	
+	lo = hi = zero;
+	
+	// rotate each point
+	for ( i=1; i<4; i++ ) {
+		Rotate( &p[i], zero, angle );
+		if ( p[i].x < lo.x ) lo.x = p[i].x;
+		if ( p[i].y < lo.y ) lo.y = p[i].y;
+		if ( p[i].x > hi.x ) hi.x = p[i].x;
+		if ( p[i].y > hi.y ) hi.y = p[i].y;
+	}
+	
+	// now recaclulate the corners
+	loR->x = pos.x + lo.x;
+	loR->y = pos.y + lo.y;
+	hiR->x = pos.x + hi.x;
+	hiR->y = pos.y + hi.y;
+}
+
+
+static void Get1SegBounds( trkSeg_p segPtr, coOrd xlat, ANGLE_T angle, coOrd *lo, coOrd *hi )
+{
+	int inx;
+	coOrd p0, p1, pc;
+	ANGLE_T a0, a1;
+	coOrd width;
+	DIST_T radius;
+
+	width = zero;
+	switch ( segPtr->type ) {
+	case ' ':
+		return;
+	case SEG_STRTRK:
+	case SEG_CRVTRK:
+	case SEG_STRLIN:
+	case SEG_DIMLIN:
+	case SEG_BENCH:
+	case SEG_TBLEDGE:
+	case SEG_CRVLIN:
+	case SEG_JNTTRK:
+			REORIGIN( p0, GetSegEndPt( segPtr, 0, FALSE, NULL ), angle, xlat )
+			REORIGIN( p1, GetSegEndPt( segPtr, 1, FALSE, NULL ), angle, xlat )
+			if (p0.x < p1.x) {
+				lo->x = p0.x;
+				hi->x = p1.x; 
+			} else {
+				lo->x = p1.x;
+				hi->x = p0.x; 
+			}
+			if (p0.y < p1.y) {
+				lo->y = p0.y;
+				hi->y = p1.y; 
+			} else {
+				lo->y = p1.y;
+				hi->y = p0.y; 
+			}
+			if ( segPtr->type == SEG_CRVTRK ||
+				 segPtr->type == SEG_CRVLIN ) {
+				REORIGIN( pc, segPtr->u.c.center, angle, xlat );
+				a0 = NormalizeAngle( segPtr->u.c.a0 + angle );
+				a1 = segPtr->u.c.a1;
+				radius = fabs(segPtr->u.c.radius);
+				if ( a1 >= 360.0 ) {
+					lo->x = pc.x - radius;
+					lo->y = pc.y - radius;
+					hi->x = pc.x + radius;
+					hi->y = pc.y + radius;
+					return;
+				}
+				if ( a0 + a1 >= 360.0 )
+					hi->y = pc.y + radius;
+				if ( a0 < 90.0 && a0+a1 >= 90.0 )
+					hi->x = pc.x + radius;
+				if ( a0 < 180 && a0+a1 >= 180.0 )
+					lo->y = pc.y - radius;
+				if ( a0 < 270.0 && a0+a1 >= 270.0 )
+					lo->x = pc.x - radius;
+			}
+			if ( segPtr->type == SEG_STRLIN ) {
+				width.x = segPtr->width * fabs(cos( D2R( FindAngle(p0, p1) ) ) ) / 2.0;
+				width.y = segPtr->width * fabs(sin( D2R( FindAngle(p0, p1) ) ) ) / 2.0;
+			} else if ( segPtr->type == SEG_CRVLIN ) {
+				/* TODO: be more precise about curved line width */
+				width.x = width.y = segPtr->width/2.0;
+			} else if ( segPtr->type == SEG_BENCH ) {
+				width.x = BenchGetWidth( segPtr->u.l.option ) * fabs(cos( D2R( FindAngle(p0, p1) ) ) ) / 2.0;
+				width.y = BenchGetWidth( segPtr->u.l.option ) * fabs(sin( D2R( FindAngle(p0, p1) ) ) ) / 2.0;
+			}
+		break;
+	case SEG_POLY:
+		/* TODO: be more precise about poly line width */
+		width.x = width.y = segPtr->width/2.0;
+	case SEG_FILPOLY:
+		for (inx=0; inx<segPtr->u.p.cnt; inx++ ) {
+			REORIGIN( p0, segPtr->u.p.pts[inx], angle, xlat )
+			if (inx==0) {
+				*lo = *hi = p0;
+			} else {
+				if (p0.x < lo->x)
+					lo->x = p0.x;
+				if (p0.y < lo->y)
+					lo->y = p0.y;
+				if (p0.x > hi->x)
+					hi->x = p0.x;
+				if (p0.y > hi->y)
+					hi->y = p0.y;
+			}
+		}
+		break;
+	case SEG_FILCRCL:
+		REORIGIN( p0, segPtr->u.c.center, angle, xlat )
+		lo->x = p0.x - segPtr->u.c.radius;
+		hi->x = p0.x + segPtr->u.c.radius;
+		lo->y = p0.y - segPtr->u.c.radius;
+		hi->y = p0.y + segPtr->u.c.radius;
+		break;
+	case SEG_TEXT:
+		REORIGIN( p0, segPtr->u.t.pos, angle, xlat )
+		GetTextBounds( p0, angle+segPtr->u.t.angle, segPtr->u.t.string, segPtr->u.t.fontSize, lo, hi );
+		break;
+	default:
+		;
+	}
+	lo->x -= width.x;
+	lo->y -= width.y;
+	hi->x += width.x;
+	hi->y += width.y;
+}
+
+
+EXPORT void GetSegBounds(
+		coOrd xlat,
+		ANGLE_T angle,
+		wIndex_t segCnt,
+		trkSeg_p segs,
+		coOrd * orig_ret,
+		coOrd * size_ret )
+{
+	trkSeg_p s;
+	coOrd lo, hi, tmpLo, tmpHi;
+	BOOL_T first;
+
+	first = TRUE;
+	for (s=segs; s<&segs[segCnt]; s++) {
+		if (s->type == ' ')
+			continue;
+		if (first) {
+			Get1SegBounds( s, xlat, angle, &lo, &hi );
+			first = FALSE;
+		} else {
+			Get1SegBounds( s, xlat, angle, &tmpLo, &tmpHi );
+			if (tmpLo.x < lo.x)
+				lo.x = tmpLo.x;
+			if (tmpLo.y < lo.y)
+				lo.y = tmpLo.y;
+			if (tmpHi.x > hi.x)
+				hi.x = tmpHi.x;
+			if (tmpHi.y > hi.y)
+				hi.y = tmpHi.y;
+		}
+	}
+	if (first) {
+		*orig_ret = xlat;
+		*size_ret = zero;
+		return;
+	}
+	if (lo.x < hi.x) {
+		orig_ret->x = lo.x;
+		size_ret->x = hi.x-lo.x;
+	} else {
+		orig_ret->x = hi.x;
+		size_ret->x = lo.x-hi.x;
+	}
+	if (lo.y < hi.y) {
+		orig_ret->y = lo.y;
+		size_ret->y = hi.y-lo.y;
+	} else {
+		orig_ret->y = hi.y;
+		size_ret->y = lo.y-hi.y;
+	}
+}
+
+
+EXPORT void MoveSegs(
+		wIndex_t segCnt,
+		trkSeg_p segs,
+		coOrd orig )
+{
+	trkSeg_p s;
+	int inx;
+
+	for (s=segs; s<&segs[segCnt]; s++) {
+		switch (s->type) {
+		case SEG_STRLIN:
+		case SEG_DIMLIN:
+		case SEG_BENCH:
+		case SEG_TBLEDGE:
+		case SEG_STRTRK:
+			s->u.l.pos[0].x += orig.x;
+			s->u.l.pos[0].y += orig.y;
+			s->u.l.pos[1].x += orig.x;
+			s->u.l.pos[1].y += orig.y;
+			break;
+		case SEG_CRVLIN:
+		case SEG_CRVTRK:
+		case SEG_FILCRCL:
+			s->u.c.center.x += orig.x;
+			s->u.c.center.y += orig.y;
+			break;
+		case SEG_TEXT:
+			s->u.t.pos.x += orig.x;
+			s->u.t.pos.y += orig.y;
+			break;
+		case SEG_POLY:
+		case SEG_FILPOLY:
+			for (inx=0; inx<s->u.p.cnt; inx++) {
+				s->u.p.pts[inx].x += orig.x;
+				s->u.p.pts[inx].y += orig.y;
+			}
+			break;
+		case SEG_JNTTRK:
+			s->u.j.pos.x += orig.x;
+			s->u.j.pos.y += orig.y;
+			break;
+		}
+	}
+}
+
+
+EXPORT void RotateSegs(
+		wIndex_t segCnt,
+		trkSeg_p segs,
+		coOrd orig,
+		ANGLE_T angle )
+{
+	trkSeg_p s;
+	int inx;
+
+	for (s=segs; s<&segs[segCnt]; s++) {
+		switch (s->type) {
+		case SEG_STRLIN:
+		case SEG_DIMLIN:
+		case SEG_BENCH:
+		case SEG_TBLEDGE:
+		case SEG_STRTRK:
+			Rotate( &s->u.l.pos[0], orig, angle );
+			Rotate( &s->u.l.pos[1], orig, angle );
+			break;
+		case SEG_CRVLIN:
+		case SEG_CRVTRK:
+		case SEG_FILCRCL:
+			Rotate( &s->u.c.center, orig, angle );
+			s->u.c.a0 = NormalizeAngle( s->u.c.a0+angle );
+			break;
+		case SEG_TEXT:
+			Rotate( &s->u.t.pos, orig, angle );
+			s->u.t.angle = NormalizeAngle( s->u.t.angle+angle );
+			break;
+		case SEG_POLY:
+		case SEG_FILPOLY:
+			for (inx=0; inx<s->u.p.cnt; inx++) {
+				Rotate( &s->u.p.pts[inx], orig, angle );
+			}
+			break;
+		case SEG_JNTTRK:
+			Rotate( &s->u.j.pos, orig, angle );
+			s->u.j.angle = NormalizeAngle( s->u.j.angle+angle );
+			break;
+		}
+	}
+}
+
+
+EXPORT void FlipSegs(
+		wIndex_t segCnt,
+		trkSeg_p segs,
+		coOrd orig,
+		ANGLE_T angle )
+{
+	trkSeg_p s;
+	int inx;
+	coOrd * pts;
+
+	for (s=segs; s<&segs[segCnt]; s++) {
+		switch (s->type) {
+		case SEG_STRLIN:
+		case SEG_DIMLIN:
+		case SEG_BENCH:
+		case SEG_TBLEDGE:
+		case SEG_STRTRK:
+			s->u.l.pos[0].y = -s->u.l.pos[0].y;
+			s->u.l.pos[1].y = -s->u.l.pos[1].y;
+			break;
+		case SEG_CRVTRK:
+			s->u.c.radius = - s->u.c.radius;
+		case SEG_CRVLIN:
+		case SEG_FILCRCL:
+			s->u.c.center.y = -s->u.c.center.y;
+			if ( s->u.c.a1 < 360.0 )
+				s->u.c.a0 = NormalizeAngle( 180.0 - s->u.c.a0 - s->u.c.a1 );
+			break;
+		case SEG_TEXT:
+			s->u.t.pos.y = -s->u.t.pos.y;
+/* TODO flip text angle */
+			break;
+		case SEG_POLY:
+		case SEG_FILPOLY:
+			pts = (coOrd*)MyMalloc( s->u.p.cnt * sizeof *(coOrd*)NULL );
+			memcpy( pts, s->u.p.pts, s->u.p.cnt * sizeof *(coOrd*)NULL );
+			s->u.p.pts = pts;
+			for (inx=0; inx<s->u.p.cnt; inx++) {
+				s->u.p.pts[inx].y = -s->u.p.pts[inx].y;
+			}
+			break;
+		case SEG_JNTTRK:
+			s->u.j.pos.y = - s->u.j.pos.y;
+			s->u.j.angle = NormalizeAngle( 180.0 - s->u.j.angle );
+			s->u.j.negate = ! s->u.j.negate;
+			break;
+		}
+	}
+}
+
+
+EXPORT void RescaleSegs(
+		wIndex_t segCnt,
+		trkSeg_p segs,
+		DIST_T scale_x,
+		DIST_T scale_y,
+		DIST_T scale_w )
+{
+	trkSeg_p s;
+	int inx;
+
+	for (s=segs; s<&segs[segCnt]; s++) {
+		s->width *= scale_w;
+		switch (s->type) {
+		case SEG_STRLIN:
+		case SEG_DIMLIN:
+		case SEG_BENCH:
+		case SEG_TBLEDGE:
+		case SEG_STRTRK:
+			s->u.l.pos[0].y *= scale_y;
+			s->u.l.pos[0].x *= scale_x;
+			s->u.l.pos[1].x *= scale_x;
+			s->u.l.pos[1].y *= scale_y;
+			break;
+		case SEG_CRVTRK:
+		case SEG_CRVLIN:
+		case SEG_FILCRCL:
+			s->u.c.center.x *= scale_x;
+			s->u.c.center.y *= scale_y;
+			s->u.c.radius *= scale_w;
+			break;
+		case SEG_TEXT:
+			s->u.t.pos.x *= scale_x;
+			s->u.t.pos.y *= scale_y;
+			s->u.t.fontSize *= scale_w;
+			break;
+		case SEG_POLY:
+		case SEG_FILPOLY:
+			for (inx=0; inx<s->u.p.cnt; inx++) {
+				s->u.p.pts[inx].x *= scale_x;
+				s->u.p.pts[inx].y *= scale_y;
+			}
+			break;
+		case SEG_JNTTRK:
+			s->u.j.pos.x *= scale_x;
+			s->u.j.pos.y *= scale_y;
+			s->u.j.R *= scale_w;
+			s->u.j.L *= scale_w;
+			s->u.j.l0 *= scale_w;
+			s->u.j.l1 *= scale_w;
+			break;
+		}
+	}
+}
+
+
+EXPORT void CloneFilledDraw(
+		int segCnt,
+		trkSeg_p segs,
+		BOOL_T reorigin )
+{
+	coOrd * newPts;
+	trkSeg_p sp;
+	wIndex_t inx;
+
+	for ( sp=segs; sp<&segs[segCnt]; sp++ ) {
+		switch (sp->type) {
+		case SEG_POLY:
+		case SEG_FILPOLY:
+			newPts = (coOrd*)MyMalloc( sp->u.p.cnt * sizeof *(coOrd*)0 );
+			if ( reorigin ) {
+				for ( inx = 0; inx<sp->u.p.cnt; inx++ )
+					REORIGIN( newPts[inx], sp->u.p.pts[inx], sp->u.p.angle, sp->u.p.orig );
+				sp->u.p.angle = 0;
+				sp->u.p.orig = zero;
+			} else {
+				memcpy( newPts, sp->u.p.pts, sp->u.p.cnt * sizeof *(coOrd*)0 );
+			}
+			sp->u.p.pts = newPts;
+			break;
+		case SEG_TEXT:
+			sp->u.t.string = MyStrdup( sp->u.t.string );
+			break;
+		default:
+			break;
+		}
+	}
+}
+
+
+EXPORT void FreeFilledDraw(
+		int segCnt,
+		trkSeg_p segs )
+{
+	trkSeg_p sp;
+
+	for ( sp=segs; sp<&segs[segCnt]; sp++ ) {
+		switch (sp->type) {
+		case SEG_POLY:
+		case SEG_FILPOLY:
+			if ( sp->u.p.pts )
+				MyFree( sp->u.p.pts );
+			sp->u.p.pts = NULL;
+			break;
+		case SEG_TEXT:
+			if ( sp->u.t.string )
+				MyFree( sp->u.t.string );
+			sp->u.t.string = NULL;
+			break;
+		default:
+			break;
+		}
+	}
+}
+
+
+EXPORT DIST_T DistanceSegs(
+		coOrd orig,
+		ANGLE_T angle,
+		wIndex_t segCnt,
+		trkSeg_p segPtr,
+		coOrd * pos,
+		wIndex_t * inx_ret )
+{
+	DIST_T d, dd = 100000.0, ddd;
+	coOrd p0, p1, p2, pt, lo, hi;
+	BOOL_T found = FALSE;
+	wIndex_t inx, lin;
+	p0 = *pos;
+	Rotate( &p0, orig, -angle );
+	p0.x -= orig.x;
+	p0.y -= orig.y;
+	d = dd;
+	for ( inx=0; segCnt>0; segPtr++,segCnt--,inx++) {
+		p1 = p0;
+		switch (segPtr->type) {
+		case SEG_STRTRK:
+		case SEG_STRLIN:
+		case SEG_DIMLIN:
+		case SEG_BENCH:
+		case SEG_TBLEDGE:
+			dd = LineDistance( &p1, segPtr->u.l.pos[0], segPtr->u.l.pos[1] );
+			if ( segPtr->type == SEG_BENCH ) {
+				if ( dd < BenchGetWidth( segPtr->u.l.option )/2.0 )
+					dd = 0.0;
+			}
+			break;
+		case SEG_CRVTRK:
+		case SEG_CRVLIN:
+		case SEG_FILCRCL:
+			dd = CircleDistance( &p1, segPtr->u.c.center, fabs(segPtr->u.c.radius), segPtr->u.c.a0, segPtr->u.c.a1 );
+			break;
+		case SEG_POLY:
+		case SEG_FILPOLY:
+			ddd = 100000.0;
+			for (lin=0;lin<segPtr->u.p.cnt;lin++) {
+				pt = p0;
+				if (lin < segPtr->u.p.cnt-1 )
+					ddd = LineDistance( &pt, segPtr->u.p.pts[lin], segPtr->u.p.pts[lin+1] );
+				else
+					ddd = LineDistance( &pt, segPtr->u.p.pts[lin], segPtr->u.p.pts[0] );
+				if ( ddd < dd ) {
+					dd = ddd;
+					p1 = pt;
+				}
+			}
+			break;
+		case SEG_TEXT:
+			/*GetTextBounds( segPtr->u.t.pos, angle+segPtr->u.t.angle, segPtr->u.t.string, segPtr->u.t.fontSize, &lo, &hi );*/
+			GetTextBounds( zero, 0, segPtr->u.t.string, segPtr->u.t.fontSize, &lo, &hi );
+			Rotate( &p0, segPtr->u.t.pos, segPtr->u.t.angle );
+			p0.x -= segPtr->u.t.pos.x;
+			p0.y -= segPtr->u.t.pos.y;
+			if ( p0.x < hi.x && p0.y < hi.y ) {
+				DIST_T dx, dy;
+				hi.x /= 2.0;
+				hi.y /= 2.0;
+				p0.x -= hi.x;
+				p0.y -= hi.y;
+				dx = fabs(p0.x/hi.x);
+				dy = fabs(p0.y/hi.y);
+				if ( dx > dy )
+					dd = dx;
+				else
+					dd = dy;
+				dd *= 0.25*mainD.scale;
+				/*printf( "dx=%0.4f dy=%0.4f dd=%0.3f\n", dx, dy, dd );*/
+			}
+/*
+			if ( p0.x >= lo.x && p0.x <= hi.x &&
+				 p0.y >= lo.y && p0.y <= hi.y ) {
+				p1.x = (lo.x+hi.x)/2.0;
+				p1.y = (lo.y+hi.y)/2.0;
+				dd = FindDistance( p0, p1 );
+			}
+*/
+			break;
+		case SEG_JNTTRK:
+			dd = JointDistance( &p1, segPtr->u.j.pos, segPtr->u.j.angle, segPtr->u.j.l0, segPtr->u.j.l1, segPtr->u.j.R, segPtr->u.j.L, segPtr->u.j.negate, segPtr->u.j.Scurve );
+			break;
+		default:
+			dd = 100000.0;
+		}
+		if (dd < d) {
+			d = dd;
+			p2 = p1;
+			if (inx_ret)
+				*inx_ret = inx;
+			found = TRUE;
+		}
+	}
+	if (found) {
+		p2.x += orig.x;
+		p2.y += orig.y;
+		Rotate( &p2, orig, angle );
+		*pos = p2;
+	}
+	return d;
+}
+
+
+EXPORT ANGLE_T GetAngleSegs(
+		wIndex_t segCnt,
+		trkSeg_p segPtr,
+		coOrd pos,
+		wIndex_t * segInxR )
+{
+	wIndex_t inx;
+	ANGLE_T angle = 0.0;
+	coOrd p0;
+	DIST_T d, dd;
+	segProcData_t segProcData;
+
+	DistanceSegs( zero, 0.0, segCnt, segPtr, &pos, &inx );
+	segPtr += inx;
+	segProcData.getAngle.pos = pos;
+	switch ( segPtr->type ) {
+	case SEG_STRTRK:
+	case SEG_STRLIN:
+	case SEG_DIMLIN:
+	case SEG_BENCH:
+	case SEG_TBLEDGE:
+		StraightSegProc( SEGPROC_GETANGLE, segPtr, &segProcData );
+		angle = segProcData.getAngle.angle;
+		break;
+	case SEG_CRVTRK:
+	case SEG_CRVLIN:
+	case SEG_FILCRCL:
+		CurveSegProc( SEGPROC_GETANGLE, segPtr, &segProcData );
+		angle = segProcData.getAngle.angle;
+		break;
+	case SEG_JNTTRK:
+		JointSegProc( SEGPROC_GETANGLE, segPtr, &segProcData );
+		angle = segProcData.getAngle.angle;
+		break;
+	case SEG_POLY:
+	case SEG_FILPOLY:
+		p0 = pos;
+		dd = LineDistance( &p0, segPtr->u.p.pts[segPtr->u.p.cnt-1], segPtr->u.p.pts[0] );
+		angle = FindAngle( segPtr->u.p.pts[segPtr->u.p.cnt-1], segPtr->u.p.pts[0] );
+		for ( inx=0; inx<segPtr->u.p.cnt-1; inx++ ) {
+			p0 = pos;
+			d = LineDistance( &p0, segPtr->u.p.pts[inx], segPtr->u.p.pts[inx+1] );
+			if ( d < dd ) {
+				dd = d;
+				angle = FindAngle( segPtr->u.p.pts[inx], segPtr->u.p.pts[inx+1] );
+			}
+		}
+		break;
+	case SEG_TEXT:
+		angle = segPtr->u.t.angle;
+		break;
+	default:
+		AbortProg( "GetAngleSegs(%d)", segPtr->type );
+	}
+	if ( segInxR ) *segInxR = inx;
+	return angle;
+}
+
+/****************************************************************************
+ *
+ * Color
+ *
+ ****************************************************************************/ 
+
+typedef struct {
+		FLOAT_T h, s, v;
+		} hsv_t;
+static FLOAT_T max_s;
+static FLOAT_T max_v;
+static dynArr_t hsv_da;
+#define hsv(N) DYNARR_N( hsv_t, hsv_da, N )
+
+static void Hsv2rgb(
+		hsv_t	hsv,
+		long	*rgb )
+{
+  int i;
+  FLOAT_T f, w, q, t, r=0, g=0, b=0;
+
+  if (hsv.s == 0.0)
+	hsv.s = 0.000001;
+
+  if (hsv.h == -1.0)
+	{
+	  r = hsv.v;
+	  g = hsv.v;
+	  b = hsv.v;
+	}
+  else
+	{
+	  if (hsv.h == 360.0)
+		hsv.h = 0.0;
+	  hsv.h = hsv.h / 60.0;
+	  i = (int) hsv.h;
+	  f = hsv.h - i;
+	  w = hsv.v * (1.0 - hsv.s);
+	  q = hsv.v * (1.0 - (hsv.s * f));
+	  t = hsv.v * (1.0 - (hsv.s * (1.0 - f)));
+
+	  switch (i)
+		{
+		case 0:
+		  r = hsv.v;
+		  g = t;
+		  b = w;
+		  break;
+		case 1:
+		  r = q;
+		  g = hsv.v;
+		  b = w;
+		  break;
+		case 2:
+		  r = w;
+		  g = hsv.v;
+		  b = t;
+		  break;
+		case 3:
+		  r = w;
+		  g = q;
+		  b = hsv.v;
+		  break;
+		case 4:
+		  r = t;
+		  g = w;
+		  b = hsv.v;
+		  break;
+		case 5:
+		  r = hsv.v;
+		  g = w;
+		  b = q;
+		  break;
+		}
+	}
+	*rgb = wRGB( (int)(r*255), (int)(g*255), (int)(b*255) );
+}
+
+
+static void Rgb2hsv(
+		long	 rgb,
+		hsv_t	*hsv )
+{
+  FLOAT_T r, g, b;
+  FLOAT_T max, min, delta;
+
+  r = ((rgb>>16)&0xFF)/255.0;
+  g = ((rgb>>8)&0xFF)/255.0;
+  b = ((rgb)&0xFF)/255.0;
+
+  max = r;
+  if (g > max)
+	max = g;
+  if (b > max)
+	max = b;
+
+  min = r;
+  if (g < min)
+	min = g;
+  if (b < min)
+	min = b;
+
+  hsv->v = max;
+
+  if (max != 0.0)
+	hsv->s = (max - min) / max;
+  else
+	hsv->s = 0.0;
+
+  if (hsv->s == 0.0)
+	hsv->h = -1.0;
+  else
+	{
+	  delta = max - min;
+
+	  if (r == max)
+		hsv->h = (g - b) / delta;
+	  else if (g == max)
+		hsv->h = 2.0 + (b - r) / delta;
+	  else if (b == max)
+		hsv->h = 4.0 + (r - g) / delta;
+
+	  hsv->h = hsv->h * 60.0;
+
+	  if (hsv->h < 0.0)
+		hsv->h = hsv->h + 360;
+	}
+}
+
+
+static void Fill_hsv(
+		wIndex_t segCnt,
+		trkSeg_p segPtr,
+		hsv_t * hsvP )
+{
+	int inx;
+
+	max_s = 0.0;
+	max_v = 0.0;
+	for ( inx=0; inx<segCnt; inx++ ) {
+		Rgb2hsv( wDrawGetRGB(segPtr[inx].color), &hsvP[inx] );
+		if ( hsvP[inx].h >= 0 ) {
+			if ( max_s < hsvP[inx].s )
+				max_s = hsvP[inx].s;
+			if ( max_v < hsvP[inx].v )
+				max_v = hsvP[inx].v;
+		}
+	}
+}
+
+EXPORT void RecolorSegs(
+		wIndex_t cnt,
+		trkSeg_p segs,
+		wDrawColor color )
+{
+	long rgb;
+	wIndex_t inx;
+	hsv_t hsv0;
+	FLOAT_T h, s, v;
+
+	DYNARR_SET( hsv_t, hsv_da, cnt );
+	Fill_hsv( cnt, segs, &hsv(0) );
+	rgb = wDrawGetRGB( color );
+	Rgb2hsv( rgb, &hsv0 );
+	h = hsv0.h;
+	if ( max_s > 0.25 )
+		s = hsv0.s/max_s;
+	else
+		s = 1.0;
+	if ( max_v > 0.25 )
+		v = hsv0.v/max_v;
+	else
+		v = 1.0;
+	for ( inx=0; inx<cnt; inx++,segs++ ) {
+		hsv0 = hsv(inx);
+		if ( hsv0.h < 0 ) /* ignore black */
+			continue;
+		hsv0.h = h;
+		hsv0.s *= s;
+		hsv0.v *= v;
+		Hsv2rgb( hsv0, &rgb );
+		segs->color = wDrawFindColor( rgb );
+	}
+}
+
+
+
+/****************************************************************************
+ *
+ * Input/Output
+ *
+ ****************************************************************************/ 
+
+
+static void AppendPath( signed char c )
+{
+	if (pathPtr == NULL) {
+		pathMax = 100;
+		pathPtr = (signed char*)MyMalloc( pathMax );
+	} else if (pathCnt >= pathMax) {
+		pathMax += 100;
+		pathPtr = (signed char*)MyRealloc( pathPtr, pathMax );
+	}
+	pathPtr[pathCnt++] = c;
+}
+
+
+EXPORT BOOL_T ReadSegs( void )
+{
+	char *cp, *cpp;
+	BOOL_T rc=FALSE;
+	trkSeg_p s;
+	trkEndPt_p e;
+	long rgb;
+	int i;
+	DIST_T elev0, elev1;
+	BOOL_T hasElev;
+	char type;
+	long option;
+
+	descriptionOff = zero;
+	tempSpecial[0] = '\0';
+	tempCustom[0] = '\0';
+	DYNARR_RESET( trkSeg_t, tempSegs_da );
+	DYNARR_RESET( trkEndPt_t, tempEndPts_da );
+	pathCnt = 0;
+	while ( (cp = GetNextLine()) != NULL ) {
+		while (isspace(*cp)) cp++;
+		hasElev = FALSE;
+		if ( strncmp( cp, "END", 3 ) == 0 ) {
+			rc = TRUE;
+			break;
+		}
+		if ( *cp == '\n' || *cp == '#' ) {
+			continue;
+		}
+		type = *cp++;
+		hasElev = FALSE;
+		if ( *cp == '3' ) {
+			cp++;
+			hasElev = TRUE;
+		}
+		switch (type) {
+		case SEG_STRLIN:
+		case SEG_TBLEDGE:
+			DYNARR_APPEND( trkSeg_t, tempSegs_da, 10 );
+			s = &tempSegs(tempSegs_da.cnt-1);
+			s->type = type;
+			if ( !GetArgs( cp, hasElev?"lwpfpf":"lwpYpY",
+				&rgb, &s->width, &s->u.l.pos[0], &elev0, &s->u.l.pos[1], &elev1 ) ) {
+				rc = FALSE;
+				break;
+			}
+			s->u.l.option = 0;
+			s->color = wDrawFindColor( rgb );
+			break;
+		case SEG_DIMLIN:
+		case SEG_BENCH:
+			DYNARR_APPEND( trkSeg_t, tempSegs_da, 10 );
+			s = &tempSegs(tempSegs_da.cnt-1);
+			s->type = type;
+			if ( !GetArgs( cp, hasElev?"lwpfpfl":"lwpYpYZ",
+				&rgb, &s->width, &s->u.l.pos[0], &elev0, &s->u.l.pos[1], &elev1, &option ) ) {
+				rc = FALSE;
+				break;
+			}
+			if ( type == SEG_DIMLIN )
+				s->u.l.option = option;
+			else
+				s->u.l.option = BenchInputOption(option);
+			s->color = wDrawFindColor( rgb );
+			break;
+		case SEG_CRVLIN:
+			DYNARR_APPEND( trkSeg_t, tempSegs_da, 10 );
+			s = &tempSegs(tempSegs_da.cnt-1);
+			s->type = SEG_CRVLIN;
+			if ( !GetArgs( cp, hasElev?"lwfpfff":"lwfpYff",
+				&rgb, &s->width,
+				 &s->u.c.radius,
+				 &s->u.c.center,
+				 &elev0,
+				 &s->u.c.a0, &s->u.c.a1 ) ) {
+				rc = FALSE;
+				break;
+			}
+			s->color = wDrawFindColor( rgb );
+			break;
+		case SEG_STRTRK:
+			DYNARR_APPEND( trkSeg_t, tempSegs_da, 10 );
+			s = &tempSegs(tempSegs_da.cnt-1);
+			s->type = SEG_STRTRK;
+			if ( !GetArgs( cp, hasElev?"lwpfpf":"lwpYpY",
+				&rgb, &s->width,
+				&s->u.l.pos[0], &elev0,
+				&s->u.l.pos[1], &elev1 ) ) {
+				rc = FALSE;
+				break;
+			}
+			s->color = wDrawFindColor( rgb );
+			break;
+		case SEG_CRVTRK:
+			DYNARR_APPEND( trkSeg_t, tempSegs_da, 10 );
+			s = &tempSegs(tempSegs_da.cnt-1);
+			s->type = SEG_CRVTRK;
+			if ( !GetArgs( cp, hasElev?"lwfpfff":"lwfpYff",
+				 &rgb, &s->width,
+				 &s->u.c.radius,
+				 &s->u.c.center,
+				 &elev0,
+				 &s->u.c.a0, &s->u.c.a1 ) ) {
+				rc = FALSE;
+				break;
+			}
+			s->color = wDrawFindColor( rgb );
+			break;
+		case SEG_JNTTRK:
+			DYNARR_APPEND( trkSeg_t, tempSegs_da, 10 );
+			s = &tempSegs(tempSegs_da.cnt-1);
+			s->type = SEG_JNTTRK;
+			if ( !GetArgs( cp, hasElev?"lwpffffffl":"lwpYfffffl",
+				 &rgb, &s->width,
+				 &s->u.j.pos,
+				 &elev0,
+				 &s->u.j.angle,
+				 &s->u.j.l0,
+				 &s->u.j.l1,
+				 &s->u.j.R,
+				 &s->u.j.L,
+				 &option ) ) {
+				rc = FALSE;
+				break;
+			}
+			s->u.j.negate = ( option&1 )!=0;
+			s->u.j.flip = ( option&2 )!=0;
+			s->u.j.Scurve = ( option&4 )!=0;
+			s->color = wDrawFindColor( rgb );
+			break;
+		case SEG_FILCRCL:
+			DYNARR_APPEND( trkSeg_t, tempSegs_da, 10 );
+			s = &tempSegs(tempSegs_da.cnt-1);
+			s->type = SEG_FILCRCL;
+			if ( !GetArgs( cp, hasElev?"lwfpf":"lwfpY",
+				 &rgb, &s->width,
+				 &s->u.c.radius,
+				 &s->u.c.center,
+				 &elev0 ) ) {
+				rc = FALSE;
+				/*??*/break;
+			}
+			s->u.c.a0 = 0.0;
+			s->u.c.a1 = 360.0;
+			s->color = wDrawFindColor( rgb );
+			break;
+		case SEG_POLY:
+		case SEG_FILPOLY:
+			DYNARR_APPEND( trkSeg_t, tempSegs_da, 10 );
+			s = &tempSegs(tempSegs_da.cnt-1);
+			s->type = type;
+			if ( !GetArgs( cp, "lwd",
+				 &rgb, &s->width,
+				 &s->u.p.cnt ) ) {
+				rc = FALSE;
+				/*??*/break;
+			}
+			s->color = wDrawFindColor( rgb );
+			s->u.p.pts = (coOrd*)MyMalloc( s->u.p.cnt * sizeof *(coOrd*)NULL );
+			for ( i=0; i<s->u.p.cnt; i++ ) {
+				cp = GetNextLine();
+				if (cp == NULL || !GetArgs( cp, hasElev?"pf":"pY", &s->u.p.pts[i], &elev0 ) ) {
+					rc = FALSE;
+					/*??*/break;
+				}
+			}
+			s->u.p.angle = 0.0;
+			s->u.p.orig = zero;
+			break;
+		case SEG_TEXT:
+			DYNARR_APPEND( trkSeg_t, tempSegs_da, 10 );
+			s = &tempSegs(tempSegs_da.cnt-1);
+			s->type = type;
+			s->u.t.fontP = NULL;
+			if ( !GetArgs( cp, "lpf0fq", &rgb, &s->u.t.pos, &s->u.t.angle, &s->u.t.fontSize, &s->u.t.string ) ) {
+				rc = FALSE;
+				/*??*/break;
+			}
+			s->color = wDrawFindColor( rgb );
+			break;
+		case SEG_UNCEP:
+		case SEG_CONEP:
+			DYNARR_APPEND( trkEndPt_t, tempEndPts_da, 10 );
+			e = &tempEndPts(tempEndPts_da.cnt-1);
+			if (type == SEG_CONEP) {
+				if ( !GetArgs( cp, "dc", &e->index, &cp ) ) {
+					rc = FALSE;
+					/*??*/break;
+				}
+			} else {
+				e->index = -1;
+			}
+			if ( !GetArgs( cp, "pfc",
+				&e->pos, &e->angle, &cp) ) {
+				rc = FALSE;
+				/*??*/break;
+			}
+			e->elev.option = 0;
+			e->elev.u.height = 0.0;
+			e->elev.doff = zero;
+			e->option = 0;
+			if ( cp != NULL ) {
+				if (paramVersion < 7) {
+					GetArgs( cp, "dfp", &e->elev.option,  &e->elev.u.height, &e->elev.doff, &cp );
+					/*??*/break;
+				}
+				GetArgs( cp, "lpc", &option, &e->elev.doff, &cp );
+				e->option = option >> 8;
+				e->elev.option = (int)(option&0xFF);
+				if ( (e->elev.option&ELEV_MASK) != ELEV_NONE ) {
+					switch (e->elev.option&ELEV_MASK) {
+					case ELEV_DEF:
+						GetArgs( cp, "fc", &e->elev.u.height, &cp );
+						break;
+					case ELEV_STATION:
+						GetArgs( cp, "qc", &e->elev.u.name, &cp );
+						/*??*/break;
+					default:
+						;
+					}
+				}
+			}
+			break;
+		case SEG_PATH:
+			while (isspace(*cp)) cp++;
+			if (*cp == '\"') cp++;
+			while ( *cp != '\"') AppendPath((signed char)*cp++);
+			AppendPath(0);
+			cp++;
+			while (1) {
+				i = (int)strtol(cp, &cpp, 10);
+				if (cp == cpp)
+					/*??*/break;
+				cp = cpp;
+				AppendPath( (signed char)i );
+			}
+			AppendPath( 0 );
+			AppendPath( 0 );
+			break;
+		case SEG_SPEC:
+			strncpy( tempSpecial, cp+1, sizeof tempSpecial - 1 );
+			break;
+		case SEG_CUST:
+			strncpy( tempCustom, cp+1, sizeof tempCustom - 1 );
+			break;
+		case SEG_DOFF:
+			if ( !GetArgs( cp, "ff", &descriptionOff.x, &descriptionOff.y ) ) {
+				rc = FALSE;
+				/*??*/break;
+			}
+			break;
+		default:
+			break;
+		}
+	}
+	AppendPath( 0 );
+
+#ifdef LATER
+	if ( logTable(log_readTracks).level >= 4 ) {
+		for (s=&tempSegs(0); s<&tempSegs(tempSegs_da.cnt); s++) {
+			switch (s->type) {
+			case SEG_STRTRK:
+			case SEG_STRLIN:
+			case SEG_DIMLIN:
+			case SEG_BENCH:
+			case SEG_TBLEDGE:
+				LogPrintf( "seg[%d] = %c [%0.3f %0.3f] [%0.3f %0.3f]\n",
+					tempSegs_da.cnt, s->type,
+					s->u.l.pos[0].x, s->u.l.pos[0].y,
+					s->u.l.pos[1].x, s->u.l.pos[1].y );
+				break;
+			case SEG_CRVTRK:
+			case SEG_CRVLIN:
+				LogPrintf( "seg[%d] = %c R=%0.3f A0=%0.3f A1=%0.3f [%0.3f %0.3f]\n",
+					tempSegs_da.cnt, s->type,
+					s->u.c.radius,
+					s->u.c.center.x, s->u.c.center.y,
+					s->u.c.a0, s->u.c.a1 );
+				break;
+			 case SEG_JNTTRK:
+				LogPrintf( "seg[%d] = %c\n",
+					tempSegs_da.cnt, s->type );
+				break;
+			}
+		}
+	}
+#endif
+	return rc;
+}
+
+
+EXPORT BOOL_T WriteSegs(
+		FILE * f,
+		wIndex_t segCnt,
+		trkSeg_p segs )
+{
+	int i, j;
+	BOOL_T rc = TRUE;
+	long option;
+
+	for ( i=0; i<segCnt; i++ ) {
+		switch ( segs[i].type ) {
+		case SEG_STRTRK:
+			rc &= fprintf( f, "\t%c %ld %0.6f %0.6f %0.6f %0.6f %0.6f\n",
+				segs[i].type, wDrawGetRGB(segs[i].color), segs[i].width,
+				segs[i].u.l.pos[0].x, segs[i].u.l.pos[0].y,
+				segs[i].u.l.pos[1].x, segs[i].u.l.pos[1].y ) > 0;
+			break;
+		case SEG_STRLIN:
+		case SEG_TBLEDGE:
+			rc &= fprintf( f, "\t%c3 %ld %0.6f %0.6f %0.6f 0 %0.6f %0.6f 0\n",
+				segs[i].type, wDrawGetRGB(segs[i].color), segs[i].width,
+				segs[i].u.l.pos[0].x, segs[i].u.l.pos[0].y,
+				segs[i].u.l.pos[1].x, segs[i].u.l.pos[1].y ) > 0;
+			break;
+		case SEG_DIMLIN:
+			rc &= fprintf( f, "\t%c3 %ld %0.6f %0.6f %0.6f 0 %0.6f %0.6f 0 %ld\n",
+				segs[i].type, wDrawGetRGB(segs[i].color), segs[i].width,
+				segs[i].u.l.pos[0].x, segs[i].u.l.pos[0].y,
+				segs[i].u.l.pos[1].x, segs[i].u.l.pos[1].y,
+				segs[i].u.l.option ) > 0;
+			break;
+		case SEG_BENCH:
+			rc &= fprintf( f, "\t%c3 %ld %0.6f %0.6f %0.6f 0 %0.6f %0.6f 0 %ld\n",
+				segs[i].type, wDrawGetRGB(segs[i].color), segs[i].width,
+				segs[i].u.l.pos[0].x, segs[i].u.l.pos[0].y,
+				segs[i].u.l.pos[1].x, segs[i].u.l.pos[1].y,
+				BenchOutputOption(segs[i].u.l.option) ) > 0;
+			break;
+		case SEG_CRVTRK:
+			rc &= fprintf( f, "\t%c %ld %0.6f %0.6f %0.6f %0.6f %0.6f %0.6f\n",
+				segs[i].type, wDrawGetRGB(segs[i].color), segs[i].width,
+				segs[i].u.c.radius,
+				segs[i].u.c.center.x, segs[i].u.c.center.y,
+				segs[i].u.c.a0, segs[i].u.c.a1 ) > 0;
+			break;
+		case SEG_JNTTRK:
+			option = (segs[i].u.j.negate?1:0) + (segs[i].u.j.flip?2:0) + (segs[i].u.j.Scurve?4:0);
+			rc &= fprintf( f, "\t%c %ld %0.6f %0.6f %0.6f %0.6f %0.6f %0.6f %0.6f %0.6f %ld\n",
+				segs[i].type, wDrawGetRGB(segs[i].color), segs[i].width,
+				segs[i].u.j.pos.x, segs[i].u.j.pos.y,
+				segs[i].u.j.angle,
+				segs[i].u.j.l0,
+				segs[i].u.j.l1,
+				segs[i].u.j.R,
+				segs[i].u.j.L,
+				option )>0;
+			break;
+		case SEG_CRVLIN:
+			rc &= fprintf( f, "\t%c3 %ld %0.6f %0.6f %0.6f %0.6f 0 %0.6f %0.6f\n",
+				segs[i].type, wDrawGetRGB(segs[i].color), segs[i].width,
+				segs[i].u.c.radius,
+				segs[i].u.c.center.x, segs[i].u.c.center.y,
+				segs[i].u.c.a0, segs[i].u.c.a1 ) > 0;
+			break;
+		case SEG_FILCRCL:
+			rc &= fprintf( f, "\t%c3 %ld %0.6f %0.6f %0.6f %0.6f 0\n",
+				segs[i].type, wDrawGetRGB(segs[i].color), segs[i].width,
+				segs[i].u.c.radius,
+				segs[i].u.c.center.x, segs[i].u.c.center.y ) > 0;
+			break;
+		case SEG_POLY:
+		case SEG_FILPOLY:
+			rc &= fprintf( f, "\t%c3 %ld %0.6f %d\n",
+				segs[i].type, wDrawGetRGB(segs[i].color), segs[i].width,
+				segs[i].u.p.cnt ) > 0;
+			for ( j=0; j<segs[i].u.p.cnt; j++ )
+				rc &= fprintf( f, "\t\t%0.6f %0.6f 0\n",
+						segs[i].u.p.pts[j].x, segs[i].u.p.pts[j].y ) > 0;
+			break;
+		case SEG_TEXT: /* 0pf0fq */
+			rc &= fprintf( f, "\t%c %ld %0.6f %0.6f %0.6f 0 %0.6f \"%s\"\n",
+				segs[i].type, wDrawGetRGB(segs[i].color),
+				segs[i].u.t.pos.x, segs[i].u.t.pos.y, segs[i].u.t.angle,
+				segs[i].u.t.fontSize, PutTitle(segs[i].u.t.string) ) > 0;
+			break;
+		}
+	}
+	rc &= fprintf( f, "\tEND\n" )>0;
+	return rc;
+}
+
+
+EXPORT void SegProc(
+		segProc_e cmd,
+		trkSeg_p segPtr,
+		segProcData_p data )
+{
+	switch (segPtr->type) {
+	case SEG_STRTRK:
+		StraightSegProc( cmd, segPtr, data );
+		break;
+	case SEG_CRVTRK:
+		CurveSegProc( cmd, segPtr, data );
+		break;
+	case SEG_JNTTRK:
+		JointSegProc( cmd, segPtr, data );
+		break;
+	default:
+		AbortProg( "SegProg( %d )", segPtr->type );
+		break;
+	}
+}
+
+
+/*
+ *	Draw Segs
+ */
+
+EXPORT void DrawDimLine(
+		drawCmd_p d,
+		coOrd p0,
+		coOrd p1,
+		char * dimP,
+		wFontSize_t fs,
+		FLOAT_T middle,
+		wDrawWidth width,
+		wDrawColor color,
+		long option )
+{
+	ANGLE_T a0, a1;
+	wFont_p fp;
+	coOrd size, p, pc;
+	DIST_T dist, dist1, fx, fy;
+	POS_T x, y;
+	coOrd textsize;
+
+	if ( middle < 0.0 ) middle = 0.0;
+	if ( middle > 1.0 ) middle = 1.0;
+	a0 = FindAngle( p0, p1 );
+	dist = fs/144.0;
+
+	if ( ( option & 0x10 ) == 0 ) {
+		Translate( &p, p0, a0-45, dist );
+		DrawLine( d, p0, p, 0, color );
+		Translate( &p, p0, a0+45, dist );
+		DrawLine( d, p0, p, 0, color );
+	}
+	if ( ( option & 0x20 ) == 0 ) {
+		Translate( &p, p1, a0-135, dist );
+		DrawLine( d, p1, p, 0, color );
+		Translate( &p, p1, a0+135, dist );
+		DrawLine( d, p1, p, 0, color );
+	}
+
+	if ( fs < 2*d->scale ) {
+		DrawLine( d, p0, p1, 0, color );
+		return;
+	}
+	fp = wStandardFont( (option&0x01)?F_TIMES:F_HELV, FALSE, FALSE );
+	dist =	FindDistance( p0, p1 );
+	DrawTextSize( &mainD, dimP, fp, fs, TRUE, &textsize );
+	size.x = textsize.x/2.0;
+	size.y = textsize.y/2.0;
+	dist1 = FindDistance( zero, size );
+	if ( dist <= dist1*2 ) {
+		DrawLine( d, p0, p1, 0, color );
+		return;
+	}
+		a1 = FindAngle( zero, size );
+		p.x = p0.x+(p1.x-p0.x)*middle;
+		p.y = p0.y+(p1.y-p0.y)*middle;
+		pc = p;
+		p.x -= size.x;
+		p.y -= size.y;
+		fx = fy = 1;
+		if (a0>180) {
+			a0 = a0-180;
+			fx = fy = -1;
+		}
+		if (a0>90) {
+			a0 = 180-a0;
+			fy *= -1;
+		}
+		if (a0>a1) {
+			x = size.x;
+			y = x * tan(D2R(90-a0));
+		} else {
+			y = size.y;
+			x = y * tan(D2R(a0));
+		}
+		DrawString( d, p, 0.0, dimP, fp, fs, color );
+		p = pc;
+		p.x -= fx*x;
+		p.y -= fy*y;
+		DrawLine( d, p0, p, 0, color );
+		p = pc;
+		p.x += fx*x;
+		p.y += fy*y;
+		DrawLine( d, p, p1, 0, color );
+}
+		
+EXPORT void DrawSegsO(
+		drawCmd_p d,
+		track_p trk,
+		coOrd orig,
+		ANGLE_T angle,
+		trkSeg_p segPtr,
+		wIndex_t segCnt,
+		DIST_T trackGauge,
+		wDrawColor color,
+		long options )
+{
+	wIndex_t i, j;
+	coOrd p0, p1, c;
+	ANGLE_T a0;
+	wDrawColor color1, color2;
+	DIST_T factor = d->dpi/d->scale;
+	trkSeg_p tempPtr;
+	static dynArr_t tempPts_da;
+#define tempPts(N) DYNARR_N( coOrd, tempPts_da, N )
+	long option;
+	wFontSize_t fs;
+
+	for (i=0; i<segCnt; i++,segPtr++ ) {
+		if (color == wDrawColorBlack) {
+			color1 = segPtr->color;
+			color2 = wDrawColorBlack;
+		} else {
+			color1 = color2 = color;
+		}
+		if ( (options&DTS_TIES)!=0 ) {
+			if ( segPtr->color == wDrawColorWhite )
+				continue;
+			switch (segPtr->type) {
+			case SEG_STRTRK:
+				REORIGIN( p0, segPtr->u.l.pos[0], angle, orig )
+				REORIGIN( p1, segPtr->u.l.pos[1], angle, orig )
+				DrawStraightTies( d, trk, p0, p1, color );
+				break;
+			case SEG_CRVTRK:
+				a0 = NormalizeAngle(segPtr->u.c.a0 + angle);
+				REORIGIN( c, segPtr->u.c.center, angle, orig );
+				DrawCurvedTies( d, trk, c, fabs(segPtr->u.c.radius), a0, segPtr->u.c.a1, color );
+				break;
+			case SEG_JNTTRK:
+				REORIGIN( p0, segPtr->u.j.pos, angle, orig );
+				DrawJointTrack( d, p0, NormalizeAngle(segPtr->u.j.angle+angle), segPtr->u.j.l0, segPtr->u.j.l1, segPtr->u.j.R, segPtr->u.j.L, segPtr->u.j.negate, segPtr->u.j.flip, segPtr->u.j.Scurve, trk, -1, -1, trackGauge, color1, options );
+				break;
+			}
+			continue;
+		}
+		switch (segPtr->type) {
+		case SEG_STRTRK:
+		case SEG_CRVTRK:
+		case SEG_JNTTRK:
+		case SEG_TEXT:
+			break;
+		default:
+			if (d->options&DC_QUICK)
+				return;
+			if ((d->options&DC_SIMPLE) != 0 &&
+				trackGauge != 0.0)
+				return;
+		}
+		switch (segPtr->type) {
+		case SEG_STRLIN:
+		case SEG_DIMLIN:
+		case SEG_BENCH:
+		case SEG_TBLEDGE:
+		case SEG_STRTRK:
+			REORIGIN( p0, segPtr->u.l.pos[0], angle, orig )
+			REORIGIN( p1, segPtr->u.l.pos[1], angle, orig )
+			switch (segPtr->type) {
+			case SEG_STRTRK:
+				if (color1 == wDrawColorBlack)
+					color1 = normalColor;
+				if ( segPtr->color == wDrawColorWhite )
+					break;
+				DrawStraightTrack( d,
+					p0, p1,
+					FindAngle(p0, p1 ),
+					NULL, trackGauge, color1, options );
+				break;
+			case SEG_STRLIN:
+				DrawLine( d, p0, p1, (wDrawWidth)floor(segPtr->width*factor+0.5), color1 );
+				break;
+			case SEG_DIMLIN:
+			case SEG_BENCH:
+			case SEG_TBLEDGE:
+				if ( (d->options&DC_GROUP) ||
+					 (segPtr->type == SEG_DIMLIN && d->funcs == &tempSegDrawFuncs) ) {
+					DYNARR_APPEND( trkSeg_t, tempSegs_da, 10 );
+					tempPtr = &tempSegs(tempSegs_da.cnt-1);
+					memcpy( tempPtr, segPtr, sizeof segPtr[0] );
+					tempPtr->u.l.pos[0] = p0;
+					tempPtr->u.l.pos[1] = p1;
+				} else {
+					switch ( segPtr->type ) {
+					case SEG_DIMLIN:
+						fs = descriptionFontSize*4;
+						option = segPtr->u.l.option;
+						fs /= (option==0?8:option==1?4:option==2?2:1);
+						if ( fs < 2 )
+							fs = 2;
+						DrawDimLine( d, p0, p1, FormatDistance(FindDistance(p0,p1)), fs, 0.5, 0, color, option & 0x00 );
+						break;
+					case SEG_BENCH:
+						DrawBench( d, p0, p1, color1, color2, options, segPtr->u.l.option );
+						break;
+					case SEG_TBLEDGE:
+						DrawLine( d, p0, p1, (wDrawWidth)floor(3.0/mainD.dpi*d->dpi+0.5) , color );
+						break;
+					}
+				}
+				break;
+			}
+			break;
+		case SEG_CRVLIN:
+		case SEG_CRVTRK:
+			a0 = NormalizeAngle(segPtr->u.c.a0 + angle);
+			REORIGIN( c, segPtr->u.c.center, angle, orig );
+			if (segPtr->type == SEG_CRVTRK) {
+				if (color1 == wDrawColorBlack)
+					color1 = normalColor;
+				if ( segPtr->color == wDrawColorWhite )
+					break;
+				p0.x = p0.y = p1.x = p1.y = 0;
+				DrawCurvedTrack( d,
+					c,
+					fabs(segPtr->u.c.radius),
+					a0, segPtr->u.c.a1,
+					p0, p1,
+					NULL, trackGauge, color1, options );
+			} else {
+				DrawArc( d, c, fabs(segPtr->u.c.radius), a0, segPtr->u.c.a1,
+						FALSE, (wDrawWidth)floor(segPtr->width*factor+0.5), color1 );
+			}
+			break;
+		case SEG_JNTTRK:
+			REORIGIN( p0, segPtr->u.j.pos, angle, orig );
+			DrawJointTrack( d, p0, NormalizeAngle(segPtr->u.j.angle+angle), segPtr->u.j.l0, segPtr->u.j.l1, segPtr->u.j.R, segPtr->u.j.L, segPtr->u.j.negate, segPtr->u.j.flip, segPtr->u.j.Scurve, NULL, -1, -1, trackGauge, color1, options );
+			break;
+		case SEG_TEXT:
+			REORIGIN( p0, segPtr->u.t.pos, angle, orig )
+			DrawString( d, p0, NormalizeAngle(angle+segPtr->u.t.angle), segPtr->u.t.string, segPtr->u.t.fontP, segPtr->u.t.fontSize, color1 );
+			break;
+		case SEG_FILPOLY:
+			if ( (d->options&DC_GROUP) == 0 &&
+				 d->funcs != &tempSegDrawFuncs ) {
+				/* Note: if we call tempSegDrawFillPoly we get a nasty bug
+				/+ because we don't make a private copy of p.pts */
+				DYNARR_SET( coOrd, tempPts_da, segPtr->u.p.cnt );
+				for ( j=0; j<segPtr->u.p.cnt; j++ ) {
+					REORIGIN( tempPts(j), segPtr->u.p.pts[j], angle, orig )
+				}
+				DrawFillPoly( d, segPtr->u.p.cnt, &tempPts(0), color1 );
+				break;
+			} /* else fall thru */
+		case SEG_POLY:
+			if ( (d->options&DC_GROUP) ) {
+				DYNARR_APPEND( trkSeg_t, tempSegs_da, 10 );
+				tempPtr = &tempSegs(tempSegs_da.cnt-1);
+				memcpy( tempPtr, segPtr, sizeof segPtr[0] );
+				tempPtr->u.p.orig = orig;
+				tempPtr->u.p.angle = angle;
+				break;
+			}
+			REORIGIN( p0, segPtr->u.p.pts[0], angle, orig )
+			c = p0;
+			for (j=1; j<segPtr->u.p.cnt; j++) {
+				REORIGIN( p1, segPtr->u.p.pts[j], angle, orig );
+				DrawLine( d, p0, p1, (wDrawWidth)floor(segPtr->width*factor+0.5), color1 );
+				p0 = p1;
+			}
+			DrawLine( d, p0, c, (wDrawWidth)floor(segPtr->width*factor+0.5), color1 );
+			break;
+		case SEG_FILCRCL:
+			REORIGIN( c, segPtr->u.c.center, angle, orig )
+			if ( (d->options&DC_GROUP) != 0 ||
+				 d->funcs != &tempSegDrawFuncs ) {
+				DrawFillCircle( d, c, fabs(segPtr->u.c.radius), color1 );
+			} else {
+				DrawArc( d, c, fabs(segPtr->u.c.radius), 0, 360,
+						FALSE, (wDrawWidth)0, color1 );
+			}
+			break;
+		}
+	}
+}
+
+
+
+EXPORT void DrawSegs(
+		drawCmd_p d,
+		coOrd orig,
+		ANGLE_T angle,
+		trkSeg_p segPtr,
+		wIndex_t segCnt,
+		DIST_T trackGauge,
+		wDrawColor color )
+{
+	DrawSegsO( d, NULL, orig, angle, segPtr, segCnt, trackGauge, color, 0 );
+}
+
+