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authorlecoanet2005-04-13 14:07:59 +0000
committerlecoanet2005-04-13 14:07:59 +0000
commit46ea8bc12e435b7ca6593bc43498ef6aae3e261a (patch)
tree999a9e3b04ec40156befba0c189c83d07aac4cfa /generic/Geo.h
parent970957ef4d39e8558410347852b709cf8fd15e87 (diff)
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Expanded the tabs into spaces to make the indenting independant of
the editing environment (emacs vs vi for example).
Diffstat (limited to 'generic/Geo.h')
-rw-r--r--generic/Geo.h380
1 files changed, 190 insertions, 190 deletions
diff --git a/generic/Geo.h b/generic/Geo.h
index 1e3ac90..a833141 100644
--- a/generic/Geo.h
+++ b/generic/Geo.h
@@ -1,8 +1,8 @@
/*
* Geo.h -- Header for common geometric routines.
*
- * Authors : Patrick Lecoanet.
- * Creation date :
+ * Authors : Patrick Lecoanet.
+ * Creation date :
*
* $Id$
*/
@@ -39,18 +39,18 @@
#ifndef M_PI
-#define M_PI 3.14159265358979323846264338327
+#define M_PI 3.14159265358979323846264338327
#endif
#ifndef M_PI_2
-#define M_PI_2 1.57079632679489661923
+#define M_PI_2 1.57079632679489661923
#endif
#ifndef M_PI_4
-#define M_PI_4 0.78539816339744830962
+#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
+#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.
@@ -69,11 +69,11 @@
* points has doubles.
*/
typedef struct {
- double x, y;
+ double x, y;
} ZnPoint;
typedef struct {
- double x, y, w, h;
+ double x, y, w, h;
} ZnRect;
/*
@@ -87,14 +87,14 @@ typedef struct {
* always axes aligned.
*/
typedef struct {
- ZnPoint orig, corner;
+ ZnPoint orig, corner;
} ZnBBox;
typedef struct {
- unsigned int num_points;
- ZnPoint *points;
- char *controls;
- ZnBool cw;
+ unsigned int num_points;
+ ZnPoint *points;
+ char *controls;
+ ZnBool cw;
} ZnContour;
/*
@@ -102,9 +102,9 @@ typedef struct {
* without having to alloc the contours array.
*/
typedef struct {
- unsigned int num_contours;
- ZnContour *contours;
- ZnContour contour1;
+ unsigned int num_contours;
+ ZnContour *contours;
+ ZnContour contour1;
} ZnPoly;
/*
@@ -116,30 +116,30 @@ typedef enum {
} 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. */
+ 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;
+ unsigned int num_strips;
+ ZnStrip *strips;
+ ZnStrip strip1;
} ZnTriStrip;
#ifndef MIN
-#define MIN(a, b) ((a) <= (b) ? (a) : (b))
+#define MIN(a, b) ((a) <= (b) ? (a) : (b))
#endif
#ifndef MAX
-#define MAX(a, b) ((a) >= (b) ? (a) : (b))
+#define MAX(a, b) ((a) >= (b) ? (a) : (b))
#endif
#ifndef ABS
-#define ABS(a) ((a) < 0 ? -(a) : (a))
+#define ABS(a) ((a) < 0 ? -(a) : (a))
#endif
#define ZnDegRad(angle) \
@@ -153,243 +153,243 @@ typedef struct {
(((int) ((d) + (((d) > 0) ? 0.5 : -0.5))))
void
-ZnPolyInit(ZnPoly *poly);
+ZnPolyInit(ZnPoly *poly);
void
-ZnPolyContour1(ZnPoly *poly,
- ZnPoint *pts,
- unsigned int num_pts,
- ZnBool cw);
+ZnPolyContour1(ZnPoly *poly,
+ ZnPoint *pts,
+ unsigned int num_pts,
+ ZnBool cw);
void
-ZnPolySet(ZnPoly *poly1,
- ZnPoly *poly2);
+ZnPolySet(ZnPoly *poly1,
+ ZnPoly *poly2);
void
-ZnPolyFree(ZnPoly *poly);
+ZnPolyFree(ZnPoly *poly);
void
-ZnTriStrip1(ZnTriStrip *tristrip,
- ZnPoint *pts,
- unsigned int num_pts,
- ZnBool fan);
+ZnTriStrip1(ZnTriStrip *tristrip,
+ ZnPoint *pts,
+ unsigned int num_pts,
+ ZnBool fan);
void
-ZnTriFree(ZnTriStrip *tristrip);
+ZnTriFree(ZnTriStrip *tristrip);
void
-ZnAnchor2Origin(ZnPoint *position,
- ZnDim width,
- ZnDim height,
- Tk_Anchor anchor,
- ZnPoint *origin);
+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);
+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);
+ZnBBox2XRect(ZnBBox *bbox,
+ XRectangle *rect);
void
-ZnGetStringBBox(char *str,
- Tk_Font font,
- ZnPos x,
- ZnPos y,
- ZnBBox *str_bbox);
+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);
+ ZnBBox *bbox_to);
void
ZnIntersectBBox(ZnBBox *bbox1,
- ZnBBox *bbox2,
- ZnBBox *bbox_inter);
+ ZnBBox *bbox2,
+ ZnBBox *bbox_inter);
ZnBool
ZnIsEmptyBBox(ZnBBox *bbox);
void
ZnAddBBoxToBBox(ZnBBox *bbox,
- ZnBBox *bbox2);
+ ZnBBox *bbox2);
void
-ZnAddPointToBBox(ZnBBox *bbox,
- ZnPos px,
- ZnPos py);
+ZnAddPointToBBox(ZnBBox *bbox,
+ ZnPos px,
+ ZnPos py);
void
ZnAddPointsToBBox(ZnBBox *bbox,
- ZnPoint *points,
- unsigned int num_points);
+ ZnPoint *points,
+ unsigned int num_points);
void
-ZnAddStringToBBox(ZnBBox *bbox,
- char *str,
- Tk_Font font,
- ZnPos cx,
- ZnPos cy);
+ZnAddStringToBBox(ZnBBox *bbox,
+ char *str,
+ Tk_Font font,
+ ZnPos cx,
+ ZnPos cy);
ZnBool
-ZnPointInBBox(ZnBBox *bbox,
- ZnPos x,
- ZnPos y);
+ZnPointInBBox(ZnBBox *bbox,
+ ZnPos x,
+ ZnPos y);
int
-ZnLineInBBox(ZnPoint *p1,
- ZnPoint *p2,
- ZnBBox *bbox);
+ZnLineInBBox(ZnPoint *p1,
+ ZnPoint *p2,
+ ZnBBox *bbox);
int
-ZnBBoxInBBox(ZnBBox *bbox1,
- ZnBBox *bbox2);
+ZnBBoxInBBox(ZnBBox *bbox1,
+ ZnBBox *bbox2);
int
-ZnPolylineInBBox(ZnPoint *points,
- unsigned int num_points,
- ZnDim width,
- int cap_style,
- int join_style,
- ZnBBox *bbox);
+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);
+ZnPolygonInBBox(ZnPoint *points,
+ unsigned int num_points,
+ ZnBBox *bbox,
+ ZnBool *area_enclosed);
int
-ZnOvalInBBox(ZnPoint *center,
- ZnDim width,
- ZnDim height,
- ZnBBox *bbox);
+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);
+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);
+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);
+ZnPointInAngle(int start_angle,
+ int angle_extent,
+ ZnPoint *p);
void
-ZnPointPolarToCartesian(ZnReal heading,
- ZnReal rho,
- ZnReal theta,
- ZnReal *delta_x,
- ZnReal *delta_y);
+ZnPointPolarToCartesian(ZnReal heading,
+ ZnReal rho,
+ ZnReal theta,
+ ZnReal *delta_x,
+ ZnReal *delta_y);
ZnReal
-ZnProjectionToAngle(ZnReal dx,
- ZnReal dy);
+ZnProjectionToAngle(ZnReal dx,
+ ZnReal dy);
ZnDim
-ZnRectangleToPointDist(ZnBBox *bbox,
- ZnPoint *p);
+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);
+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);
+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);
+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);
+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);
+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);
+ZnIntersectLines(ZnPoint *a1,
+ ZnPoint *a2,
+ ZnPoint *b1,
+ ZnPoint *b2,
+ ZnPoint *pi);
void
-ZnShiftLine(ZnPoint *p1,
- ZnPoint *p2,
- ZnDim dist,
- ZnPoint *p3,
- ZnPoint *p4);
+ZnShiftLine(ZnPoint *p1,
+ ZnPoint *p2,
+ ZnDim dist,
+ ZnPoint *p3,
+ ZnPoint *p4);
void
-ZnInsetPolygon(ZnPoint *p,
- unsigned int num_points,
- ZnDim inset);
+ZnInsetPolygon(ZnPoint *p,
+ unsigned int num_points,
+ ZnDim inset);
void
-ZnSmoothPathWithBezier(ZnPoint *from_points,
- unsigned int num_points,
- ZnList to_points);
+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);
+ZnGetBezierPoints(ZnPoint *p1,
+ ZnPoint *c1,
+ ZnPoint *c2,
+ ZnPoint *p2,
+ ZnList to_points,
+ double eps);
void
-ZnGetBezierPath(ZnList from_points,
- ZnList to_points);
+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);
+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);
+ZnGetArcPath(ZnReal start_angle,
+ ZnReal end_angle,
+ int type,
+ ZnList to_points);
void
-ZnFitBezier(ZnPoint *pts,
- unsigned int num_points,
- ZnReal error,
- ZnList controls);
+ZnFitBezier(ZnPoint *pts,
+ unsigned int num_points,
+ ZnReal error,
+ ZnList controls);
ZnBool
-ZnTestCCW(ZnPoint *p,
- unsigned int num_points);
+ZnTestCCW(ZnPoint *p,
+ unsigned int num_points);
-#endif /* _Geo_h */
+#endif /* _Geo_h */