| 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 <iostream> |
| 23 | #include <string> |
| 24 | |
| 25 | #include "lsystemparameters.h" |
| 26 | |
| 27 | using namespace std; |
| 28 | |
| 29 | |
| 30 | |
| 31 | /** |
| 32 | * Constructor |
| 33 | */ |
| 34 | LSystemParameters::LSystemParameters() |
| 35 | { |
| 36 | } |
| 37 | |
| 38 | |
| 39 | |
| 40 | /** |
| 41 | * Destructor |
| 42 | */ |
| 43 | LSystemParameters::~LSystemParameters() |
| 44 | { |
| 45 | } |
| 46 | |
| 47 | |
| 48 | |
| 49 | /** |
| 50 | * Load parameters from xml file |
| 51 | * @param lsystem put parameters into this L-system |
| 52 | * @param path path to xml file |
| 53 | */ |
| 54 | void LSystemParameters::load(LindenmayerSystem *lsystem, string path) |
| 55 | { |
| 56 | if (lsystem) |
| 57 | { |
| 58 | try |
| 59 | { |
| 60 | // load |
| 61 | loadFromDisk(path); |
| 62 | |
| 63 | // axiom |
| 64 | findChild("axiom"); |
| 65 | lsystem->setAxiom(getString()); |
| 66 | |
| 67 | // rules |
| 68 | if (findChild("rule")) |
| 69 | { |
| 70 | do |
| 71 | { |
| 72 | lsystem->setRule(getAttribute("name"), getString()); |
| 73 | } while (findNextChild()); |
| 74 | } |
| 75 | |
| 76 | // angle |
| 77 | findChild("angle"); |
| 78 | lsystem->setAngle(getNumber()); |
| 79 | |
| 80 | // iterations |
| 81 | findChild("iterations"); |
| 82 | lsystem->setNumIterations((int)getNumber()); |
| 83 | } |
| 84 | catch (xmlpp::exception e) |
| 85 | { |
| 86 | cerr << "LSystemParameters::load(): " << e.what() << endl; |
| 87 | } |
| 88 | } |
| 89 | else |
| 90 | { |
| 91 | cerr << "invalid L-system" << endl; |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | |
| 96 | |
| 97 | /** |
| 98 | * Save parameters to xml file |
| 99 | * @param lsystem get parameters from this L-system |
| 100 | * @param path path to xml file |
| 101 | */ |
| 102 | void LSystemParameters::save(LindenmayerSystem *lsystem, string path) |
| 103 | { |
| 104 | if (lsystem && !lsystem->getAxiom().empty() && !lsystem->getRules().empty()) |
| 105 | { |
| 106 | // new document with root node |
| 107 | createDocumentWithRoot("lsystem"); |
| 108 | |
| 109 | // axiom |
| 110 | addChildToRoot("axiom"); |
| 111 | addString(lsystem->getAxiom()); |
| 112 | |
| 113 | // rules |
| 114 | map<string,string> rules = lsystem->getRules(); |
| 115 | map<string,string>::iterator currentRule; |
| 116 | for (currentRule = rules.begin(); currentRule != rules.end(); currentRule++) |
| 117 | { |
| 118 | addChildToRoot("rule"); |
| 119 | addString(currentRule->second); |
| 120 | addAttribute("name", currentRule->first); |
| 121 | } |
| 122 | |
| 123 | // angle |
| 124 | addChildToRoot("angle"); |
| 125 | addNumber(lsystem->getAngle()); |
| 126 | |
| 127 | // iterations |
| 128 | addChildToRoot("iterations"); |
| 129 | addNumber(lsystem->getNumIterations()); |
| 130 | |
| 131 | // save |
| 132 | saveToDisk(path); |
| 133 | } |
| 134 | else |
| 135 | { |
| 136 | cerr << "invalid L-system" << endl; |
| 137 | } |
| 138 | } |