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00001 #ifndef COIN_SBBOX2F_H 00002 #define COIN_SBBOX2F_H 00003 00004 /**************************************************************************\ 00005 * 00006 * This file is part of the Coin 3D visualization library. 00007 * Copyright (C) 1998-2008 by Kongsberg SIM. All rights reserved. 00008 * 00009 * This library is free software; you can redistribute it and/or 00010 * modify it under the terms of the GNU General Public License 00011 * ("GPL") version 2 as published by the Free Software Foundation. 00012 * See the file LICENSE.GPL at the root directory of this source 00013 * distribution for additional information about the GNU GPL. 00014 * 00015 * For using Coin with software that can not be combined with the GNU 00016 * GPL, and for taking advantage of the additional benefits of our 00017 * support services, please contact Kongsberg SIM about acquiring 00018 * a Coin Professional Edition License. 00019 * 00020 * See http://www.coin3d.org/ for more information. 00021 * 00022 * Kongsberg SIM, Postboks 1283, Pirsenteret, 7462 Trondheim, NORWAY. 00023 * http://www.sim.no/ sales@sim.no coin-support@coin3d.org 00024 * 00025 \**************************************************************************/ 00026 00027 #include <Inventor/SbVec2f.h> 00028 00029 class SbBox2d; 00030 class SbBox2s; 00031 class SbBox2i32; 00032 00033 class COIN_DLL_API SbBox2f { 00034 public: 00035 SbBox2f(void) { makeEmpty(); } 00036 SbBox2f(float xmin, float ymin, float xmax, float ymax) 00037 : minpt(xmin, ymin), maxpt(xmax, ymax) { } 00038 SbBox2f(const SbVec2f & minpoint, const SbVec2f & maxpoint) 00039 : minpt(minpoint), maxpt(maxpoint) { } 00040 explicit SbBox2f(const SbBox2d & box) { setBounds(box); } 00041 explicit SbBox2f(const SbBox2s & box) { setBounds(box); } 00042 explicit SbBox2f(const SbBox2i32 & box) { setBounds(box); } 00043 00044 SbBox2f & setBounds(float xmin, float ymin, float xmax, float ymax) 00045 { minpt.setValue(xmin, ymin); maxpt.setValue(xmax, ymax); return *this; } 00046 SbBox2f & setBounds(const SbVec2f & minpoint, const SbVec2f & maxpoint) 00047 { minpt = minpoint; maxpt = maxpoint; return *this; } 00048 SbBox2f & setBounds(const SbBox2d & box); 00049 SbBox2f & setBounds(const SbBox2s & box); 00050 SbBox2f & setBounds(const SbBox2i32 & box); 00051 00052 void getBounds(float & xmin, float & ymin, float & xmax, float & ymax) const 00053 { minpt.getValue(xmin, ymin); maxpt.getValue(xmax, ymax); } 00054 void getBounds(SbVec2f & minpoint, SbVec2f & maxpoint) const 00055 { minpoint = minpt; maxpoint = maxpt; } 00056 00057 const SbVec2f & getMin(void) const { return minpt; } 00058 SbVec2f & getMin(void) { return minpt; } 00059 00060 const SbVec2f & getMax(void) const { return maxpt; } 00061 SbVec2f & getMax(void) { return maxpt; } 00062 00063 void extendBy(const SbVec2f & point); 00064 void extendBy(const SbBox2f & box); 00065 void makeEmpty(void); 00066 SbBool isEmpty(void) const { return (maxpt[0] < minpt[0]); } 00067 SbBool hasArea(void) const { return ((maxpt[0] > minpt[0]) && (maxpt[1] > minpt[1])); } 00068 00069 SbBool intersect(const SbVec2f & point) const; 00070 SbBool intersect(const SbBox2f & box) const; 00071 SbVec2f getClosestPoint(const SbVec2f & point) const; 00072 00073 SbVec2f getCenter(void) const { return (minpt + maxpt) * 0.5f; } 00074 void getOrigin(float & originX, float & originY) const 00075 { minpt.getValue(originX, originY); } 00076 void getSize(float & sizeX, float & sizeY) const 00077 { if (isEmpty()) { sizeX = sizeY = 0.0f; } 00078 else { sizeX = maxpt[0] - minpt[0]; sizeY = maxpt[1] - minpt[1]; } } 00079 float getAspectRatio(void) const 00080 { SbDividerChk("SbBox2f::getAspectRatio()", maxpt[1] - minpt[1]); 00081 return (maxpt[0] - minpt[0]) / (maxpt[1] - minpt[1]); } 00082 00083 protected: 00084 SbVec2f minpt, maxpt; 00085 00086 }; // SbBox2f 00087 00088 COIN_DLL_API inline int operator == (const SbBox2f & b1, const SbBox2f & b2) { 00089 return ((b1.getMin() == b2.getMin()) && (b1.getMax() == b2.getMax())); 00090 } 00091 00092 COIN_DLL_API inline int operator != (const SbBox2f & b1, const SbBox2f & b2) { 00093 return !(b1 == b2); 00094 } 00095 00096 #endif // !COIN_SBBOX2F_H
Copyright © 1998-2008 by Kongsberg SIM. All rights reserved.
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