void display()
{
GLfloat spec[4] = {0.6, 0.6, 0.6, 1.0};
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LESS);
glShadeModel(GL_SMOOTH);
glEnable(GL_LIGHT0);
glEnable(GL_SCISSOR_TEST);
glEnable(GL_COLOR_MATERIAL);
glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, spec);
glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 60);
if(blend){
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
else{
glDisable(GL_BLEND);
}
if(display_multi == GL_TRUE){
draw_multi();
}
else{
draw_single();
}
}
/*-------------------------------------------------------------------------
功能：鼠标事件回调函数
输入：鼠标事件，坐标
输出：无
date: 2014-01-23
---------------------------------------------------------------------------*/
void my_mouse_callback(int event,int x, int y, int flags, void* param)
{
arr[0] = 4; // 四边形
//pt[0] = new CvPoint[4];
IplImage *image = (IplImage*) param;
switch(event)
{
case CV_EVENT_MOUSEMOVE:
{
if(drawing_box)
{
box.width = x - box.x;
box.height = y - box.y;
printf("box.width=%d,box.height=%d\n",box.width, box.height);
}
else if(drawing_multi)
{
//跟踪当前顶点
if (left_up)
{
pt[0][0] = cvPoint(x, y);
printf("pt[0][0].x=%d,pt[0][0].y=%d\n", pt[0][0].x, pt[0][0].y);
}
else if (right_up)
{
pt[0][1] = cvPoint(x, y);
printf("pt[0][1].x=%d,pt[0][1].y=%d\n", pt[0][1].x, pt[0][1].y);
}
else if (right_down)
{
pt[0][2] = cvPoint(x, y);
printf("pt[0][2].x=%d,pt[0][2].y=%d\n", pt[0][2].x, pt[0][2].y);
}
else if (left_down)
{
pt[0][3] = cvPoint(x, y);
printf("pt[0][3].x=%d,pt[0][3].y=%d\n", pt[0][3].x, pt[0][3].y);
}
}
else
{
//首先捕捉顶点,方便选中顶点
if((multi_box[1][1] != 0) && (pt[0][0].x - POINT_RANGE <= x ) && (x <= pt[0][0].x + POINT_RANGE) && (pt[0][0].y - POINT_RANGE <= y) && (y <= pt[0][0].y + POINT_RANGE))
cvCircle(image, cvPoint(pt[0][0].x ,pt[0][0].y), 40/5, CV_RGB(250, 0, 0), 2, 8, 0 );
else if((multi_box[1][1] != 0) && (pt[0][1].x - POINT_RANGE <= x ) && (x <= pt[0][1].x + POINT_RANGE) && (pt[0][1].y - POINT_RANGE <= y) && (y <= pt[0][1].y + POINT_RANGE))
cvCircle(image, cvPoint(pt[0][1].x ,pt[0][1].y), 40/5, CV_RGB(250, 0, 0), 2, 8, 0 );
else if((multi_box[1][1] != 0) && (pt[0][2].x - POINT_RANGE <= x ) && (x <= pt[0][2].x + POINT_RANGE) && (pt[0][2].y - POINT_RANGE <= y) && (y <= pt[0][2].y + POINT_RANGE))
cvCircle(image, cvPoint(pt[0][2].x ,pt[0][2].y), 40/5, CV_RGB(250, 0, 0), 2, 8, 0 );
else if((multi_box[1][1] != 0) && (pt[0][3].x - POINT_RANGE <= x ) && (x <= pt[0][3].x + POINT_RANGE) && (pt[0][3].y - POINT_RANGE <= y) && (y <= pt[0][3].y + POINT_RANGE))
cvCircle(image, cvPoint(pt[0][3].x ,pt[0][3].y), 40/5, CV_RGB(250, 0, 0), 2, 8, 0 );
else if((multi_box[1][1] != 0))
{
cvCircle(image, cvPoint(pt[0][0].x ,pt[0][0].y), 3, CV_RGB(0, 0, 255), 2, 8, 0 );
cvCircle(image, cvPoint(pt[0][1].x ,pt[0][1].y), 3, CV_RGB(0, 0, 255), 2, 8, 0 );
cvCircle(image, cvPoint(pt[0][2].x ,pt[0][2].y), 3, CV_RGB(0, 0, 255), 2, 8, 0 );
cvCircle(image, cvPoint(pt[0][3].x ,pt[0][3].y), 3, CV_RGB(0, 0, 255), 2, 8, 0 );
}
}
}
break;
case CV_EVENT_LBUTTONDOWN:
{
//判断是调整线圈还是新画线圈，
//确定当前顶点：左上顶点
if((multi_box[1][1] != 0) && (pt[0][0].x - POINT_RANGE <= x ) && (x <= pt[0][0].x + POINT_RANGE) && (pt[0][0].y - POINT_RANGE <= y) && (y <= pt[0][0].y + POINT_RANGE))
{
left_up = true;
right_up = false;
right_down = false;
left_down = false;
drawing_multi = true;
drawing_box = false;
printf("Darging...1\n");
}//右上顶点
else if((multi_box[1][1] != 0) && (pt[0][1].x - POINT_RANGE <= x ) && (x <= pt[0][1].x + POINT_RANGE) && (pt[0][1].y - POINT_RANGE <= y) && (y <= pt[0][1].y + POINT_RANGE))
{
left_up = false;
right_up = true;
right_down = false;
left_down = false;
drawing_multi = true;
drawing_box = false;
printf("Darging...2\n");
}//右下顶点
else if((multi_box[1][1] != 0) && (pt[0][2].x - POINT_RANGE <= x ) && (x <= pt[0][2].x + POINT_RANGE) && (pt[0][2].y - POINT_RANGE <= y) && (y <= pt[0][2].y + POINT_RANGE))
{
left_up = false;
right_up = false;
right_down = true;
left_down = false;
drawing_multi = true;
drawing_box = false;
printf("Darging...3\n");
}//左下顶点
else if((multi_box[1][1] != 0) && (pt[0][3].x - POINT_RANGE <= x ) && (x <= pt[0][3].x + POINT_RANGE) && (pt[0][3].y - POINT_RANGE <= y) && (y <= pt[0][3].y + POINT_RANGE))
{
left_up = false;
right_up = false;
right_down = false;
left_down = true;
drawing_multi = true;
drawing_box = false;
printf("Darging...4\n");
}
else
{
drawing_multi = false;
drawing_box = true;
printf("Creating...\n");
box = cvRect(x, y, 0, 0);
}
}
break;
case CV_EVENT_LBUTTONUP:
{
if (drawing_multi)
{
//释放当前顶点
if (left_up)
{
printf("Darg-UP-1!\n");
drawing_multi = false;
left_up = false;
draw_multi(image);
printf("(%d,%d),(%d,%d),(%d,%d),(%d,%d) \n",pt[0][0].x, pt[0][0].y, pt[0][1].x, pt[0][1].y, pt[0][2].x, pt[0][2].y, pt[0][3].x, pt[0][3].y);
}
else if(right_up)
{
printf("Darg-UP-2!\n");
drawing_multi = false;
right_up = false;
draw_multi(image);
printf("(%d,%d),(%d,%d),(%d,%d),(%d,%d) \n",pt[0][0].x, pt[0][0].y, pt[0][1].x, pt[0][1].y, pt[0][2].x, pt[0][2].y, pt[0][3].x, pt[0][3].y);
}
else if(right_down)
{
printf("Darg-UP-3!\n");
drawing_multi = false;
right_down = false;
draw_multi(image);
printf("(%d,%d),(%d,%d),(%d,%d),(%d,%d) \n",pt[0][0].x, pt[0][0].y, pt[0][1].x, pt[0][1].y, pt[0][2].x, pt[0][2].y, pt[0][3].x, pt[0][3].y);
}
else if(left_down)
{
printf("Darg-UP-4!\n");
drawing_multi = false;
left_down = false;
draw_multi(image);
printf("(%d,%d),(%d,%d),(%d,%d),(%d,%d) \n",pt[0][0].x, pt[0][0].y, pt[0][1].x, pt[0][1].y, pt[0][2].x, pt[0][2].y, pt[0][3].x, pt[0][3].y);
}
}
else
{
printf("Create-UP!\n");
drawing_box = false;
if(box.width != 0 && box.height != 0) //取消单击时的画点情形
{
if(box.width < 0)
{
box.x += box.width;
box.width *= -1;
}
if(box.height < 0)
{
box.y += box.height;
box.height *= -1;
}
draw_box(image, box);
printf("(%d,%d),(%d,%d),(%d,%d),(%d,%d) \n",box.x, box.y, box.x + box.width, box.y, box.x + box.width, box.y + box.height, box.x, box.y + box.height);
//保存四边形的4个顶点到multi_box，分别是左上角和右下角的绝对坐标
multi_box[1][1] = box.x;
multi_box[1][2] = box.y;
multi_box[1][3] = box.x + box.width;
multi_box[1][4] = box.y + box.height;
pt[0] = new CvPoint[4]; //在此新开辟顶点的内存
pt[0][0] = cvPoint(multi_box[1][1], multi_box[1][2]);
pt[0][1] = cvPoint(multi_box[1][3], multi_box[1][2]);
pt[0][2] = cvPoint(multi_box[1][3], multi_box[1][4]);
pt[0][3] = cvPoint(multi_box[1][1], multi_box[1][4]);
}
}
}
break;
}
}
/*-------------------------------------------------------------------------
功能：主函数
输入：参数
输出：无
date: 2014-01-23
---------------------------------------------------------------------------*/
int main(int argc,char *argv[])
{
char c[20]; //坐标点标记文本
cvNamedWindow("第一帧图像",CV_WINDOW_AUTOSIZE);
CvCapture* capture = cvCreateFileCapture(argv[1]); //原始视频帧capture
IplImage* first_frame;
first_frame = cvQueryFrame(capture); //第一帧first_frame
cvShowImage("第一帧图像",first_frame);
box = cvRect(-1, -1, 0, 0);
IplImage *temp = cvCloneImage(first_frame); //临时处理帧temp
cvSetMouseCallback("第一帧图像", my_mouse_callback, (void *)temp); //分析first_frame 和 temp的区别
CvFont font;
cvInitFont(&font,CV_FONT_HERSHEY_DUPLEX, 0.5, 0.5, 0.5, 1, 8);
while(1)
{
if(drawing_box)
{
cvCopyImage(first_frame, temp);
draw_box(temp, box);
sprintf(c, "(%d, %d)", box.x, box.y );
cvPutText(temp, c, cvPoint(box.x - 90, box.y), &font,cvScalar(0x00, 0xff, 0x00)); //左上顶点和左下顶点的x坐标位置稍作偏移
sprintf(c, "(%d, %d)", box.x + box.width , box.y );
cvPutText(temp, c, cvPoint(box.x + box.width, box.y), &font,cvScalar(0x00, 0xff, 0x00));
sprintf(c, "(%d, %d)", box.x + box.width, box.y + box.height);
cvPutText(temp, c, cvPoint(box.x + box.width, box.y + box.height), &font,cvScalar(0x00, 0xff, 0x00));
sprintf(c, "(%d, %d)", box.x, box.y + box.height );
cvPutText(temp, c, cvPoint(box.x - 90, box.y + box.height), &font,cvScalar(0x00, 0xff, 0x00));
}
if(drawing_multi)
{
cvCopyImage(first_frame, temp);
//标记当前顶点
if (left_up)
{
cvCircle(temp, cvPoint(pt[0][0].x ,pt[0][0].y), 4, CV_RGB(250,0,0), 2, 8, 0 ); //画圆圈标记
}
else if(right_up)
{
cvCircle(temp, cvPoint(pt[0][1].x ,pt[0][1].y), 4, CV_RGB(250,0,0), 2, 8, 0 );
}
else if(right_down)
{
cvCircle(temp, cvPoint(pt[0][2].x ,pt[0][2].y), 4, CV_RGB(250,0,0), 2, 8, 0 );
}
else if(left_down)
{
cvCircle(temp, cvPoint(pt[0][3].x ,pt[0][3].y), 4, CV_RGB(250,0,0), 2, 8, 0 );
}
draw_multi(temp);
sprintf(c, "(x1=%d, y1=%d)", pt[0][0].x ,pt[0][0].y );
cvPutText(temp, c, cvPoint(pt[0][0].x - 150 ,pt[0][0].y ), &font, cvScalar(0x00, 0xff, 0x00));
sprintf(c, "(x2=%d, y2=%d)", pt[0][1].x ,pt[0][1].y );
cvPutText(temp, c, cvPoint(pt[0][1].x ,pt[0][1].y ), &font, cvScalar(0x00, 0xff, 0x00));
sprintf(c, "(x3=%d, y3=%d)", pt[0][2].x ,pt[0][2].y );
cvPutText(temp, c, cvPoint(pt[0][2].x ,pt[0][2].y ), &font, cvScalar(0x00, 0xff, 0x00));
sprintf(c, "(x4=%d, y4=%d)", pt[0][3].x ,pt[0][3].y );
cvPutText(temp, c, cvPoint(pt[0][3].x - 150 ,pt[0][3].y ), &font, cvScalar(0x00, 0xff, 0x00));
}
cvShowImage("第一帧图像",temp);
if(cvWaitKey(40) == 27) break;
}
return 0;
}
