Makes a domain object from a polygon. More...

Functions
int	WlzPolyCrossings (WlzIVertex2 vtx, WlzPolygonDomain pgdm, WlzErrorNum dstErr)
	Procedure to calculate winding number of the polygon with respect to the vertex. The algorithm is from "Comp Geom in C" by O'Rourke chap 7. It assumes integer vertices and that the vertex is not on the polyline. More...

int	WlzPolyCrossingsD (WlzDVertex2 vtx, WlzPolygonDomain pgdm, WlzErrorNum dstErr)
	Procedure to calculate winding number of the polygon with respect to the vertex. The algorithm is from "Comp Geom in C" by O'Rourke chap 7. It assumes double vertices and that the vertex is not on the polyline. More...

int	WlzInsidePolyEO (WlzIVertex2 vtx, WlzPolygonDomain pgdm, WlzErrorNum dstErr)
	Procedure to calculate if a vertex is inside the polygon using the even-odd rule. Algorithm from "Comp Geom in C" by O'Rourke chap 7 Assumes integer vertices and that the vertex is not on the polyline. More...

int	WlzInsidePolyEOD (WlzDVertex2 vtx, WlzPolygonDomain pgdm, WlzErrorNum dstErr)
	Procedure to calculate if a vertex is inside the polygon using the even-odd rule. Algorithm from "Comp Geom in C" by O'Rourke chap 7 Assumes integer vertices and that the vertex is not on the polyline. More...

WlzObject *	WlzPolygonToObj (WlzObject polygon, WlzPolyFillMode fillMode, WlzErrorNum dstErr)
	Convert the input polygon to an interval domain. The domain is defined by the fillMode see WlzPolyToObj(). More...

WlzObject *	WlzPolyToObj (WlzPolygonDomain pgdm, WlzPolyFillMode fillMode, WlzErrorNum dstErr)
	Convert the input polygon to an interval domain. The domain is defined by the fillMode: WLZ_SIMPLE_FILL - all pixels with winding number non-zero; WLZ_EVEN_ODD_FILL - all pixels with odd winding number; WLZ_VERTEX_FILL - all pixels through which the polyline passes. More...

WlzObject *	WlzPolyTo8Polygon (WlzPolygonDomain pgdm, int wrap, WlzErrorNum dstErr)
	Returns the 8-connected, integer vertex polyline corresponding to the input polygon. The wrap value (number of overlapping vertices of the polygon ends) is included in case this is called to create an 8-connected boundary fro which the wrap needs to be preserved. WLZ_POLYGON_FLOAT and WLZ_POLYGON_DOUBLE polylines are converted to integer vertices using WlzValueCopyFVertexToIVertex and WlzValueCopyDVertexToIVertex respectively. More...

WlzObject *	WlzBoundTo8Bound (WlzObject gvnObj, WlzErrorNum dstErr)
	Computes a new boundary list from the given one, such that the new boundary list has 8-connected polylines. More...

Detailed Description

Makes a domain object from a polygon.

Author: Richard Baldock

Date: July 2001

Version

Id: 22712e3e7c7ac141ca93195f2faf33d2aa54bada

: Address: MRC Human Genetics Unit, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Edinburgh, EH4 2XU, UK.

: Copyright (C), [2012], The University Court of the University of Edinburgh, Old College, Edinburgh, UK.

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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Functions

Detailed Description