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authorjoye <joye>2014-03-31 17:25:05 (GMT)
committerjoye <joye>2014-03-31 17:25:05 (GMT)
commitb2a9c01cf4381574956d51855abfc65565db38c1 (patch)
treee64afc13fc07d206e3d669b68cad7e107ceee44d /src/bltGrMisc.C
parent2b352a1f1f026545d71f7ce05613e19aa65b8a05 (diff)
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*** empty log message ***
Diffstat (limited to 'src/bltGrMisc.C')
-rw-r--r--src/bltGrMisc.C79
1 files changed, 0 insertions, 79 deletions
diff --git a/src/bltGrMisc.C b/src/bltGrMisc.C
index 4f5a85b..1b38d67 100644
--- a/src/bltGrMisc.C
+++ b/src/bltGrMisc.C
@@ -39,8 +39,6 @@ extern "C" {
#include "bltGraph.h"
};
-#define BOUND(x, lo, hi) (((x) > (hi)) ? (hi) : ((x) < (lo)) ? (lo) : (x))
-
// Converts a string in the form "@x,y" into an XPoint structure of the x
// and y coordinates.
int Blt_GetXY(Tcl_Interp* interp, Tk_Window tkwin, const char* string,
@@ -79,40 +77,6 @@ int Blt_GetXY(Tcl_Interp* interp, Tk_Window tkwin, const char* string,
return TCL_ERROR;
}
-int Blt_PointInSegments(Point2d* samplePtr, Segment2d* segments,
- int nSegments, double halo)
-{
- Segment2d *sp, *send;
- double minDist;
-
- minDist = DBL_MAX;
- for (sp = segments, send = sp + nSegments; sp < send; sp++) {
- double dist;
- double left, right, top, bottom;
- Point2d p, t;
-
- t = Blt_GetProjection((int)samplePtr->x, (int)samplePtr->y,
- &sp->p, &sp->q);
- if (sp->p.x > sp->q.x) {
- right = sp->p.x, left = sp->q.x;
- } else {
- right = sp->q.x, left = sp->p.x;
- }
- if (sp->p.y > sp->q.y) {
- bottom = sp->p.y, top = sp->q.y;
- } else {
- bottom = sp->q.y, top = sp->p.y;
- }
- p.x = BOUND(t.x, left, right);
- p.y = BOUND(t.y, top, bottom);
- dist = hypot(p.x - samplePtr->x, p.y - samplePtr->y);
- if (dist < minDist) {
- minDist = dist;
- }
- }
- return (minDist < halo);
-}
-
int Blt_PointInPolygon(Point2d *s, Point2d *points, int nPoints)
{
Point2d *p, *q, *qend;
@@ -133,49 +97,6 @@ int Blt_PointInPolygon(Point2d *s, Point2d *points, int nPoints)
return (count & 0x01);
}
-int Blt_RegionInPolygon(Region2d *regionPtr, Point2d *points, int nPoints,
- int enclosed)
-{
- Point2d *pp, *pend;
-
- if (enclosed) {
- /*
- * All points of the polygon must be inside the rectangle.
- */
- for (pp = points, pend = pp + nPoints; pp < pend; pp++) {
- if ((pp->x < regionPtr->left) || (pp->x > regionPtr->right) ||
- (pp->y < regionPtr->top) || (pp->y > regionPtr->bottom)) {
- return FALSE; /* One point is exterior. */
- }
- }
- return TRUE;
- } else {
- Point2d r;
- /*
- * If any segment of the polygon clips the bounding region, the
- * polygon overlaps the rectangle.
- */
- points[nPoints] = points[0];
- for (pp = points, pend = pp + nPoints; pp < pend; pp++) {
- Point2d p, q;
-
- p = *pp;
- q = *(pp + 1);
- if (Blt_LineRectClip(regionPtr, &p, &q)) {
- return TRUE;
- }
- }
- /*
- * Otherwise the polygon and rectangle are either disjoint or
- * enclosed. Check if one corner of the rectangle is inside the
- * polygon.
- */
- r.x = regionPtr->left;
- r.y = regionPtr->top;
- return Blt_PointInPolygon(&r, points, nPoints);
- }
-}
-
/*
*---------------------------------------------------------------------------
* Generates a bounding box representing the plotting area of the