?? depth.cpp
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/********************************************************************** * $Id: Depth.cpp,v 1.2.2.1 2005/05/23 18:41:51 strk Exp $ * * GEOS - Geometry Engine Open Source * http://geos.refractions.net * * Copyright (C) 2001-2002 Vivid Solutions Inc. * * This is free software; you can redistribute and/or modify it under * the terms of the GNU Lesser General Public Licence as published * by the Free Software Foundation. * See the COPYING file for more information. * ********************************************************************** * $Log: Depth.cpp,v $ * Revision 1.2.2.1 2005/05/23 18:41:51 strk * Replaced sprintf uses with ostringstream * * Revision 1.2 2004/07/02 13:28:26 strk * Fixed all #include lines to reflect headers layout change. * Added client application build tips in README. * * Revision 1.1 2004/03/19 09:48:45 ybychkov * "geomgraph" and "geomgraph/indexl" upgraded to JTS 1.4 * * Revision 1.10 2003/11/07 01:23:42 pramsey * Add standard CVS headers licence notices and copyrights to all cpp and h * files. * * **********************************************************************/#include <sstream>#include <geos/geomgraph.h>#define DEPTHNULL -1namespace geos {int Depth::depthAtLocation(int location) { if (location == Location::EXTERIOR) return 0; if (location == Location::INTERIOR) return 1; return DEPTHNULL;}Depth::Depth() { // initialize depth array to a sentinel value for (int i=0; i<2; i++) { for (int j=0; j<3;j++) { depth[i][j]=DEPTHNULL; } }}Depth::~Depth() {// delete[] &depth;}int Depth::getDepth(int geomIndex,int posIndex){ return depth[geomIndex][posIndex];}void Depth::setDepth(int geomIndex,int posIndex,int depthValue){ depth[geomIndex][posIndex] = depthValue;}int Depth::getLocation(int geomIndex,int posIndex) { if (depth[geomIndex][posIndex] <= 0) return Location::EXTERIOR; return Location::INTERIOR;}void Depth::add(int geomIndex,int posIndex,int location){ if (location == Location::INTERIOR) depth[geomIndex][posIndex]++;}/** * A Depth object is null (has never been initialized) if all depths are null. */bool Depth::isNull() { for (int i=0; i<2; i++) { for (int j=0; j<3; j++) { if (depth[i][j] != DEPTHNULL) return false; } } return true;}bool Depth::isNull(int geomIndex) { return depth[geomIndex][1] == DEPTHNULL;}bool Depth::isNull(int geomIndex, int posIndex){ return depth[geomIndex][posIndex] == DEPTHNULL;}int Depth::getDelta(int geomIndex) { return depth[geomIndex][Position::RIGHT]-depth[geomIndex][Position::LEFT];}/** * Normalize the depths for each geometry, if they are non-null. * A normalized depth * has depth values in the set { 0, 1 }. * Normalizing the depths * involves reducing the depths by the same amount so that at least * one of them is 0. If the remaining value is > 0, it is set to 1. */void Depth::normalize() { for (int i=0; i<2; i++) { if (!isNull(i)) { int minDepth=depth[i][1]; if (depth[i][2]<minDepth) minDepth=depth[i][2]; if (minDepth<0) minDepth = 0; for (int j=1; j<3; j++) { int newValue=0; if (depth[i][j]>minDepth) newValue = 1; depth[i][j] = newValue; } } }}void Depth::add(Label* lbl){ for (int i=0; i<2; i++) { for (int j=1; j<3; j++) { int loc=lbl->getLocation(i,j); if (loc==Location::EXTERIOR || loc==Location::INTERIOR) { // initialize depth if it is null, otherwise add this location value if (isNull(i,j)) { depth[i][j]=depthAtLocation(loc); } else depth[i][j]+=depthAtLocation(loc); } } }}string Depth::toString() { ostringstream s; s<<"A:"<<depth[0][1]<<","<<depth[0][2]<<" "; s<<"B:"<<depth[1][1]<<","<<depth[1][2]<<"]"; return s.str();}}
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