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diff --git a/generic/Geo.h b/generic/Geo.h
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--- a/generic/Geo.h
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-/*
- * Geo.h -- Header for common geometric routines.
- *
- * Authors : Patrick Lecoanet.
- * Creation date :
- *
- * $Id$
- */
-
-/*
- * Copyright (c) 1993 - 2005 CENA, Patrick Lecoanet --
- *
- * See the file "Copyright" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- *
- */
-
-
-#ifndef _Geo_h
-#define _Geo_h
-
-
-#include "Attrs.h"
-#include "List.h"
-
-#include <math.h>
-#include <limits.h>
-
-
-#ifndef M_PI
-#define M_PI 3.14159265358979323846264338327
-#endif
-#ifndef M_PI_2
-#define M_PI_2 1.57079632679489661923
-#endif
-#ifndef M_PI_4
-#define M_PI_4 0.78539816339744830962
-#endif
-
-#define PRECISION_LIMIT 1.0e-10
-#define X_PRECISION_LIMIT 5.0e-2
-#define ZN_LINE_END_POINTS 6
-
-/*
- * Constants used to specify circle approximation quality.
- */
-#define ZN_CIRCLE_COARSE 0
-#define ZN_CIRCLE_MEDIUM ZN_CIRCLE_COARSE+1
-#define ZN_CIRCLE_FINE ZN_CIRCLE_MEDIUM+1
-#define ZN_CIRCLE_FINER ZN_CIRCLE_FINE+1
-#define ZN_CIRCLE_FINEST ZN_CIRCLE_FINER+1
-
-
-/*
- * I would like to make these be floats,
- * but have to investigate how. Structures
- * handed to GL or GLU tess _must_ have
- * points has doubles.
- */
-typedef struct {
- double x, y;
-} ZnPoint;
-
-typedef struct {
- double x, y, w, h;
-} ZnRect;
-
-/*
- * ZnBBox: orig is into the area while corner is not.
- * Thus the test: ((bbox.orig.x == bbox.corner.x) ||
- * (bbox.orig.y == bbox.corner.y))
- * tells whether the bbox is empty or not.
- * When interpreting bboxes the X coordinate system is
- * the norm. x goes from left toward the right and y
- * goes from the top toward the bottom. Bboxes are
- * always axes aligned.
- */
-typedef struct {
- ZnPoint orig, corner;
-} ZnBBox;
-
-typedef struct {
- unsigned int num_points;
- ZnPoint *points;
- char *controls;
- ZnBool cw;
-} ZnContour;
-
-/*
- * contour1 can be used to store a single contour
- * without having to alloc the contours array.
- */
-typedef struct {
- unsigned int num_contours;
- ZnContour *contours;
- ZnContour contour1;
-} ZnPoly;
-
-/*
- * Keep this enum in sync with op_strings in Contour()
- * in tkZinc.c.
- */
-typedef enum {
- ZN_CONTOUR_ADD, ZN_CONTOUR_REMOVE
-} ZnContourCmd;
-
-typedef struct {
- unsigned int num_points;
- ZnPoint *points;
- ZnBool fan; /* When using a fan, all contour vertices must be
- * included to describe the contour as a polygon
- * (clipping code use that to speed up region
- * rendering) and the center must be the first
- * vertex. */
-} ZnStrip;
-
-typedef struct {
- unsigned int num_strips;
- ZnStrip *strips;
- ZnStrip strip1;
-} ZnTriStrip;
-
-
-#ifndef MIN
-#define MIN(a, b) ((a) <= (b) ? (a) : (b))
-#endif
-#ifndef MAX
-#define MAX(a, b) ((a) >= (b) ? (a) : (b))
-#endif
-#ifndef ABS
-#define ABS(a) ((a) < 0 ? -(a) : (a))
-#endif
-
-#define ZnDegRad(angle) \
- (M_PI * (double) (angle) / 180.0)
-#define ZnRadDeg(angle) \
- (fmod((angle) * 180.0 / M_PI, 360.0))
-#define ZnRadDeg360(angle) \
- (fmod(ZnRadDeg(angle)+360.0,360.0))
-
-#define ZnNearestInt(d) \
- (((int) ((d) + (((d) > 0) ? 0.5 : -0.5))))
-
-void
-ZnPolyInit(ZnPoly *poly);
-void
-ZnPolyContour1(ZnPoly *poly,
- ZnPoint *pts,
- unsigned int num_pts,
- ZnBool cw);
-void
-ZnPolySet(ZnPoly *poly1,
- ZnPoly *poly2);
-void
-ZnPolyFree(ZnPoly *poly);
-void
-ZnTriStrip1(ZnTriStrip *tristrip,
- ZnPoint *pts,
- unsigned int num_pts,
- ZnBool fan);
-void
-ZnTriFree(ZnTriStrip *tristrip);
-
-void
-ZnAnchor2Origin(ZnPoint *position,
- ZnDim width,
- ZnDim height,
- Tk_Anchor anchor,
- ZnPoint *origin);
-void
-ZnOrigin2Anchor(ZnPoint *origin,
- ZnDim width,
- ZnDim height,
- Tk_Anchor anchor,
- ZnPoint *position);
-void ZnRectOrigin2Anchor(ZnPoint *rect, Tk_Anchor anchor, ZnPoint *position);
-void
-ZnBBox2XRect(ZnBBox *bbox,
- XRectangle *rect);
-void
-ZnGetStringBBox(char *str,
- Tk_Font font,
- ZnPos x,
- ZnPos y,
- ZnBBox *str_bbox);
-void
-ZnResetBBox(ZnBBox *bbox);
-void
-ZnCopyBBox(ZnBBox *bbox_from,
- ZnBBox *bbox_to);
-void
-ZnIntersectBBox(ZnBBox *bbox1,
- ZnBBox *bbox2,
- ZnBBox *bbox_inter);
-ZnBool
-ZnIsEmptyBBox(ZnBBox *bbox);
-void
-ZnAddBBoxToBBox(ZnBBox *bbox,
- ZnBBox *bbox2);
-void
-ZnAddPointToBBox(ZnBBox *bbox,
- ZnPos px,
- ZnPos py);
-void
-ZnAddPointsToBBox(ZnBBox *bbox,
- ZnPoint *points,
- unsigned int num_points);
-void
-ZnAddStringToBBox(ZnBBox *bbox,
- char *str,
- Tk_Font font,
- ZnPos cx,
- ZnPos cy);
-ZnBool
-ZnPointInBBox(ZnBBox *bbox,
- ZnPos x,
- ZnPos y);
-
-int
-ZnLineInBBox(ZnPoint *p1,
- ZnPoint *p2,
- ZnBBox *bbox);
-
-int
-ZnBBoxInBBox(ZnBBox *bbox1,
- ZnBBox *bbox2);
-
-int
-ZnPolylineInBBox(ZnPoint *points,
- unsigned int num_points,
- ZnDim width,
- int cap_style,
- int join_style,
- ZnBBox *bbox);
-
-int
-ZnPolygonInBBox(ZnPoint *points,
- unsigned int num_points,
- ZnBBox *bbox,
- ZnBool *area_enclosed);
-
-int
-ZnOvalInBBox(ZnPoint *center,
- ZnDim width,
- ZnDim height,
- ZnBBox *bbox);
-
-ZnBool
-ZnHorizLineToArc(ZnReal x1,
- ZnReal x2,
- ZnReal y,
- ZnReal rx,
- ZnReal ry,
- int start_angle,
- int angle_extent);
-
-ZnBool
-ZnVertLineToArc(ZnReal x,
- ZnReal y1,
- ZnReal y2,
- ZnReal rx,
- ZnReal ry,
- int start_angle,
- int angle_extent);
-
-ZnBool
-ZnPointInAngle(int start_angle,
- int angle_extent,
- ZnPoint *p);
-
-void
-ZnPointPolarToCartesian(ZnReal heading,
- ZnReal rho,
- ZnReal theta,
- ZnReal *delta_x,
- ZnReal *delta_y);
-
-ZnReal
-ZnProjectionToAngle(ZnReal dx,
- ZnReal dy);
-
-ZnDim
-ZnRectangleToPointDist(ZnBBox *bbox,
- ZnPoint *p);
-ZnDim ZnLineToPointDist(ZnPoint *p1, ZnPoint *p2, ZnPoint *p, ZnPoint *closest);
-
-ZnDim
-ZnPolygonToPointDist(ZnPoint *points,
- unsigned int num_points,
- ZnPoint *p);
-
-ZnDim
-ZnPolylineToPointDist(ZnPoint *points,
- unsigned int num_points,
- ZnDim width,
- int cap_style,
- int join_style,
- ZnPoint *p);
-
-ZnDim
-ZnOvalToPointDist(ZnPoint *center,
- ZnDim width,
- ZnDim height,
- ZnDim line_width,
- ZnPoint *p);
-
-void
-ZnGetButtPoints(ZnPoint *p1,
- ZnPoint *p2,
- ZnDim width,
- ZnBool projecting,
- ZnPoint *c1,
- ZnPoint *c2);
-
-ZnBool
-ZnGetMiterPoints(ZnPoint *p1,
- ZnPoint *p2,
- ZnPoint *p3,
- ZnDim width,
- ZnPoint *c1,
- ZnPoint *c2);
-
-ZnBool
-ZnIntersectLines(ZnPoint *a1,
- ZnPoint *a2,
- ZnPoint *b1,
- ZnPoint *b2,
- ZnPoint *pi);
-
-void
-ZnShiftLine(ZnPoint *p1,
- ZnPoint *p2,
- ZnDim dist,
- ZnPoint *p3,
- ZnPoint *p4);
-
-void
-ZnInsetPolygon(ZnPoint *p,
- unsigned int num_points,
- ZnDim inset);
-
-void
-ZnSmoothPathWithBezier(ZnPoint *from_points,
- unsigned int num_points,
- ZnList to_points);
-
-void
-ZnGetBezierPoints(ZnPoint *p1,
- ZnPoint *c1,
- ZnPoint *c2,
- ZnPoint *p2,
- ZnList to_points,
- double eps);
-void
-ZnGetBezierPath(ZnList from_points,
- ZnList to_points);
-
-
-ZnPoint *
-ZnGetCirclePoints(int type,
- int quality,
- ZnReal start_angle,
- ZnReal angle_extent,
- unsigned int *num_points,
- ZnList point_list);
-
-void
-ZnGetArcPath(ZnReal start_angle,
- ZnReal end_angle,
- int type,
- ZnList to_points);
-
-void
-ZnFitBezier(ZnPoint *pts,
- unsigned int num_points,
- ZnReal error,
- ZnList controls);
-
-ZnBool
-ZnTestCCW(ZnPoint *p,
- unsigned int num_points);
-
-
-#endif /* _Geo_h */
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