| 1 | // Copyright (C) 2006 Erik Dahlberg |
| 2 | // |
| 3 | // This file is part of LSystem3D. |
| 4 | // |
| 5 | // LSystem3D is free software; you can redistribute it and/or |
| 6 | // modify it under the terms of the GNU General Public License |
| 7 | // as published by the Free Software Foundation; either version 2 |
| 8 | // of the License, or (at your option) any later version. |
| 9 | // |
| 10 | // LSystem3D is distributed in the hope that it will be useful, |
| 11 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | // GNU General Public License for more details. |
| 14 | // |
| 15 | // You should have received a copy of the GNU General Public License |
| 16 | // along with LSystem3D; if not, write to the Free Software |
| 17 | // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | |
| 19 | |
| 20 | |
| 21 | |
| 22 | #include <cstdlib> |
| 23 | |
| 24 | #include <iostream> |
| 25 | #include <string> |
| 26 | |
| 27 | #include "lsystemparameters.h" |
| 28 | #include "rule.h" |
| 29 | #include "ruleset.h" |
| 30 | |
| 31 | using namespace std; |
| 32 | |
| 33 | |
| 34 | |
| 35 | /** |
| 36 | * Constructor |
| 37 | */ |
| 38 | LSystemParameters::LSystemParameters() |
| 39 | { |
| 40 | } |
| 41 | |
| 42 | |
| 43 | |
| 44 | /** |
| 45 | * Destructor |
| 46 | */ |
| 47 | LSystemParameters::~LSystemParameters() |
| 48 | { |
| 49 | } |
| 50 | |
| 51 | |
| 52 | |
| 53 | /** |
| 54 | * Load parameters from xml file |
| 55 | * @param lsystem put parameters into this L-system |
| 56 | * @param path path to xml file |
| 57 | */ |
| 58 | void LSystemParameters::load(LindenmayerSystem *lsystem, string path) |
| 59 | { |
| 60 | if (lsystem) |
| 61 | { |
| 62 | lsystem->clear(); |
| 63 | |
| 64 | try |
| 65 | { |
| 66 | // load |
| 67 | loadFromDisk(path); |
| 68 | |
| 69 | // axiom |
| 70 | findChild("axiom"); |
| 71 | Rule axiom("axiom", getString(), 1.0); |
| 72 | lsystem->setAxiom(axiom); |
| 73 | |
| 74 | // rules |
| 75 | if (findChild("rule")) |
| 76 | { |
| 77 | do |
| 78 | { |
| 79 | // construct the rule |
| 80 | string name = getAttribute("name"); |
| 81 | string content = getString(); |
| 82 | double probability = strtod(getAttribute("probability").c_str(), NULL); |
| 83 | Rule completeRule(name, content, probability); |
| 84 | |
| 85 | lsystem->setRule(completeRule); |
| 86 | } while (findNextChild()); |
| 87 | } |
| 88 | |
| 89 | // angle |
| 90 | findChild("angle"); |
| 91 | lsystem->setAngle(getNumber()); |
| 92 | |
| 93 | // depth |
| 94 | findChild("depth"); |
| 95 | lsystem->setDepth((int)getNumber()); |
| 96 | |
| 97 | // initial segment diameter |
| 98 | findChild("diameter"); |
| 99 | lsystem->setDiameter(getNumber()); |
| 100 | |
| 101 | // segment diameter factor |
| 102 | double diameterFactor = strtod(getAttribute("factor").c_str(), NULL); |
| 103 | lsystem->setDiameterFactor(diameterFactor); |
| 104 | |
| 105 | } |
| 106 | catch (xmlpp::exception e) |
| 107 | { |
| 108 | cerr << "LSystemParameters::load(): " << e.what() << endl; |
| 109 | } |
| 110 | } |
| 111 | else |
| 112 | { |
| 113 | cerr << "invalid L-system" << endl; |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | |
| 118 | |
| 119 | /** |
| 120 | * Save parameters to xml file |
| 121 | * @param lsystem get parameters from this L-system |
| 122 | * @param path path to xml file |
| 123 | */ |
| 124 | void LSystemParameters::save(LindenmayerSystem *lsystem, string path) |
| 125 | { |
| 126 | if (lsystem && |
| 127 | lsystem->getAxiom().getProbability() != 0.0 && |
| 128 | !lsystem->getRules().getRules().empty()) |
| 129 | { |
| 130 | // new document with root node |
| 131 | createDocumentWithRoot("lsystem"); |
| 132 | |
| 133 | // axiom |
| 134 | addChildToRoot("axiom"); |
| 135 | addString(lsystem->getAxiom().getContent()); |
| 136 | |
| 137 | // rules |
| 138 | rulemap rules = lsystem->getRules().getRules(); |
| 139 | for (rulemap::iterator it = rules.begin(); it != rules.end(); ++it) |
| 140 | { |
| 141 | addChildToRoot("rule"); |
| 142 | addString(it->second.getContent()); |
| 143 | |
| 144 | addAttribute("name", it->second.getName()); |
| 145 | |
| 146 | string probabilityString = doubleToString(it->second.getProbability()); |
| 147 | addAttribute("probability", probabilityString); |
| 148 | } |
| 149 | |
| 150 | // angle |
| 151 | addChildToRoot("angle"); |
| 152 | addNumber(lsystem->getAngle()); |
| 153 | |
| 154 | // depth |
| 155 | addChildToRoot("depth"); |
| 156 | addNumber(lsystem->getDepth()); |
| 157 | |
| 158 | // initial segment diameter |
| 159 | addChildToRoot("diameter"); |
| 160 | addNumber(lsystem->getDiameter()); |
| 161 | |
| 162 | // segment diameter factor |
| 163 | string diameterFactor = doubleToString(lsystem->getDiameterFactor()); |
| 164 | addAttribute("factor", diameterFactor); |
| 165 | |
| 166 | // save |
| 167 | saveToDisk(path); |
| 168 | } |
| 169 | else |
| 170 | { |
| 171 | cerr << "invalid L-system" << endl; |
| 172 | } |
| 173 | } |