RegionAssist.cpp
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//#include "stdafx.h"
#include "RegionAssist.h"
//#include "MSRegionSurveilance.h"
#include "ms_region_surveilance.h"
#include "cv.h"
#include "highgui.h"
//using namespace cv;
#define LINE_PIXEL 2
using namespace std;
/************************************************************************/
/* 函数: DrawArrow() */
/* 作用: 绘制箭头 */
/* 参数: src：图像；pStart&pEnd：箭头两个端点；len：箭头两翼的长短； */
/* alpha为箭头两翼展开的幅度 */
/* 返回: 无 */
/************************************************************************/
void DrawArrow(IplImage * src, cv::Point pStart, cv::Point pEnd, int len, int alpha)
{
const double PI = 3.1415926;
cv::Point arrow;
//计算 θ 角（最简单的一种情况在下面图示中已经展示，关键在于 atan2 函数，详情见下面）
double angle = atan2((double)(pStart.y - pEnd.y), (double)(pStart.x - pEnd.x));
cvLine(src, pStart, pEnd, cvScalar(0, 127, 0), 2); //黄色线
//计算箭角边的另一端的端点位置（上面的还是下面的要看箭头的指向，也就是pStart和pEnd的位置）
arrow.x = pEnd.x + len * cos(angle + PI * alpha / 180);
arrow.y = pEnd.y + len * sin(angle + PI * alpha / 180);
cvLine(src, pEnd, arrow, cvScalar(0, 127, 0), 2);
arrow.x = pEnd.x + len * cos(angle - PI * alpha / 180);
arrow.y = pEnd.y + len * sin(angle - PI * alpha / 180);
cvLine(src, pEnd, arrow, cvScalar(0, 127, 0), 2);
}
//画线
void DrawLine(unsigned char* pRGBIn, int widthStep, const sy_point & p_roi, const sy_point & dir_point)
{
int disX = abs(dir_point.x_ - p_roi.x_);
int disY = abs(dir_point.y_ - p_roi.y_);
if (disX >= disY)
{
if (p_roi.x_ != dir_point.x_)
{
sy_point p_roi_src = p_roi.x_ < dir_point.x_ ? p_roi : dir_point;
sy_point p_roi_des = p_roi.x_ >= dir_point.x_ ? p_roi : dir_point;
double tan = (double)(p_roi_des.y_ - p_roi_src.y_) / (double)(p_roi_des.x_ - p_roi_src.x_);
for (unsigned int i = p_roi_src.x_; i <= p_roi_des.x_; ++i)
{
for (int j = 0; j < LINE_PIXEL; ++j)
{
pRGBIn[(p_roi_src.y_ + (int)(tan * (i - p_roi_src.x_)) + j)* widthStep + i * 3] = 255;
pRGBIn[(p_roi_src.y_ + (int)(tan * (i - p_roi_src.x_)) + j)* widthStep + i * 3 + 1] = 0;
pRGBIn[(p_roi_src.y_ + (int)(tan * (i - p_roi_src.x_)) + j)* widthStep + i * 3 + 2] = 0;
}
}
}
else
{
for (int j = 0; j < LINE_PIXEL; ++j)
{
pRGBIn[p_roi.x_* widthStep + (p_roi.y_+j) * 3] = 255;
pRGBIn[p_roi.x_* widthStep + (p_roi.y_+j) * 3 + 1] = 0;
pRGBIn[p_roi.x_* widthStep + (p_roi.y_+j) * 3 + 2] = 0;
}
}
}
else
{
if (p_roi.x_ != dir_point.x_)
{
sy_point p_roi_src = p_roi.y_ < dir_point.y_ ? p_roi : dir_point;
sy_point p_roi_des = p_roi.y_ >= dir_point.y_ ? p_roi : dir_point;
double cot = (double)(p_roi_des.x_ - p_roi_src.x_) / (double)(p_roi_des.y_ - p_roi_src.y_);
for (unsigned int i = p_roi_src.y_; i <= p_roi_des.y_; ++i)
{
for (int j = 0; j < LINE_PIXEL; ++j)
{
pRGBIn[(i)* widthStep + (int)(p_roi_src.x_ + cot *(i - p_roi_src.y_)+j) * 3] = 255;
pRGBIn[(i)* widthStep + (int)(p_roi_src.x_ + cot *(i - p_roi_src.y_)+j) * 3 + 1] = 0;
pRGBIn[(i)* widthStep + (int)(p_roi_src.x_ + cot *(i - p_roi_src.y_)+j) * 3 + 2] = 0;
}
}
}
else
{
sy_point p_roi_src = p_roi.y_ < dir_point.y_ ? p_roi : dir_point;
sy_point p_roi_des = p_roi.y_ >= dir_point.y_ ? p_roi : dir_point;
for (unsigned int i = p_roi_src.y_; i <= p_roi_des.y_; ++i)
{
for (int j = 0; j < LINE_PIXEL; ++j)
{
pRGBIn[(i)* widthStep + (int)(p_roi_src.x_+j) * 3] = 255;
pRGBIn[(i)* widthStep + (int)(p_roi_src.x_+j) * 3 + 1] = 0;
pRGBIn[(i)* widthStep + (int)(p_roi_src.x_+j) * 3 + 2] = 0;
}
}
}
}
}
//描绘区域
void DrawRegion(unsigned char* pRGBIn, region_info* pRegionInfo, int numROI, int widthStep)
{
for (int i = 0; i < numROI; ++i)
{
for (int j = 0; j <= pRegionInfo[i].point_num-1; ++j)
{
if (j < pRegionInfo[i].point_num - 1)
{
DrawLine(pRGBIn, widthStep, pRegionInfo[i].p_roi[j], pRegionInfo[i].p_roi[j + 1]);
}
else if (j = pRegionInfo[i].point_num - 1)
{
DrawLine(pRGBIn, widthStep, pRegionInfo[i].p_roi[j], pRegionInfo[i].p_roi[0]);
}
}
}
}
//外接矩形描绘
void ExternalRectangle(unsigned char* pRGBIn, int width, int height ,ms_object_info *ObjInfo, int ObjCount, int widthStep, int numROI)
{
int dwStep = widthStep;
int i;
// 前景目标外接矩形描绘
for (i = 0; i < ObjCount; i++)
{
//根据颜色区分报警情况
int alarm_flag = 0;
for (int ii = 0; ii < numROI; ii++)
{
if (ObjInfo[i].pb_alarm_state[ii] == true)
{
alarm_flag = 1;
//alarm_flag = ObjInfo[i].pb_alarm_type[ii];
break;
}
}
if ((ObjInfo[i].tar_box.height_ + ObjInfo[i].tar_box.top_) > height- LINE_PIXEL)
{
continue;
}
if ((ObjInfo[i].tar_box.width_ + ObjInfo[i].tar_box.left_) > width - LINE_PIXEL)
{
continue;
}
// 无报警 蓝色
if (alarm_flag == 0)
{
/*for (int t = ObjInfo[i].tar_box.left_; t <= ObjInfo[i].tar_box.left_ + ObjInfo[i].tar_box.width_; t++)
{
pRGBIn[ObjInfo[i].tar_box.top_ * dwStep + t * 3] = 255;
pRGBIn[ObjInfo[i].tar_box.top_ * dwStep + t * 3 + 1] = 0;
pRGBIn[ObjInfo[i].tar_box.top_ * dwStep + t * 3 + 2] = 0;
pRGBIn[(ObjInfo[i].tar_box.height_ + ObjInfo[i].tar_box.top_) * dwStep + t * 3] = 255;
pRGBIn[(ObjInfo[i].tar_box.height_ + ObjInfo[i].tar_box.top_) * dwStep + t * 3 + 1] = 0;
pRGBIn[(ObjInfo[i].tar_box.height_ + ObjInfo[i].tar_box.top_) * dwStep + t * 3 + 2] = 0;
}
for (int t = ObjInfo[i].tar_box.top_; t < ObjInfo[i].tar_box.height_ + ObjInfo[i].tar_box.top_; t++)
{
pRGBIn[t * dwStep + ObjInfo[i].tar_box.left_ * 3] = 255;
pRGBIn[t * dwStep + ObjInfo[i].tar_box.left_ * 3 + 1] = 0;
pRGBIn[t * dwStep + ObjInfo[i].tar_box.left_ * 3 + 2] = 0;
pRGBIn[t * dwStep + (ObjInfo[i].tar_box.left_ + ObjInfo[i].tar_box.width_) * 3] = 255;
pRGBIn[t * dwStep + (ObjInfo[i].tar_box.left_ + ObjInfo[i].tar_box.width_) * 3 + 1] = 0;
pRGBIn[t * dwStep + (ObjInfo[i].tar_box.left_ + ObjInfo[i].tar_box.width_) * 3 + 2] = 0;
}*/
}
else
{
for (int t = ObjInfo[i].tar_box.left_; t <= ObjInfo[i].tar_box.left_ + ObjInfo[i].tar_box.width_; t++)
{
for (int j = 0; j < LINE_PIXEL; ++j)
{
pRGBIn[(ObjInfo[i].tar_box.top_+j) * dwStep + t * 3] = 0;
pRGBIn[(ObjInfo[i].tar_box.top_ + j) * dwStep + t * 3 + 1] = 0;
pRGBIn[(ObjInfo[i].tar_box.top_ + j) * dwStep + t * 3 + 2] = 255;
pRGBIn[(ObjInfo[i].tar_box.height_ + ObjInfo[i].tar_box.top_ +j) * dwStep + t * 3] = 0;
pRGBIn[(ObjInfo[i].tar_box.height_ + ObjInfo[i].tar_box.top_ +j) * dwStep + t * 3 + 1] = 0;
pRGBIn[(ObjInfo[i].tar_box.height_ + ObjInfo[i].tar_box.top_ +j) * dwStep + t * 3 + 2] = 255;
}
}
for (int t = ObjInfo[i].tar_box.top_; t < ObjInfo[i].tar_box.height_ + ObjInfo[i].tar_box.top_; t++)
{
for (int j = 0; j < LINE_PIXEL; ++j)
{
pRGBIn[(t) * dwStep + (ObjInfo[i].tar_box.left_ + j) * 3] = 0;
pRGBIn[(t) * dwStep + (ObjInfo[i].tar_box.left_ + j ) * 3 + 1] = 0;
pRGBIn[(t) * dwStep + (ObjInfo[i].tar_box.left_ + j) * 3 + 2] = 255;
pRGBIn[(t) * dwStep + (ObjInfo[i].tar_box.left_ + ObjInfo[i].tar_box.width_ + j) * 3] = 0;
pRGBIn[(t) * dwStep + (ObjInfo[i].tar_box.left_ + ObjInfo[i].tar_box.width_ + j) * 3 + 1] = 0;
pRGBIn[(t) * dwStep + (ObjInfo[i].tar_box.left_ + ObjInfo[i].tar_box.width_ + j) * 3 + 2] = 255;
}
}
}
}
//printf("==== end ExternalRectangle =====\n");
}
// 轨迹描绘
void Trajectory(unsigned char* pRGBIn, ms_object_info *ObjInfo, int ObjCount, int width, int height, int widthStep, int numROI)
{
// 轨迹描绘
int dwStep = widthStep;
int i;
for (i = 0; i < ObjCount; i++)
{
unsigned char bRed = (unsigned char)((ObjInfo[i].unique_id % 3) * 85 + 85);
unsigned char bGreen = (unsigned char)((ObjInfo[i].unique_id % 7) * 36 + 36);
unsigned char bBlue = (unsigned char)((ObjInfo[i].unique_id % 13) * 20 + 15);
int alarm_flag = 0;
for (int ii = 0; ii < numROI; ii++)
{
if (ObjInfo[i].pb_alarm_state[ii] == true)
{
alarm_flag = 1;
//alarm_flag = ObjInfo[i].pb_alarm_type[ii];
break;
}
}
int dwPointNum = ObjInfo[i].trace.trace_num;
sy_point ptLast = ObjInfo[i].trace.obj_trace[0];
if (alarm_flag != 0)
{
// 对目标的每一个匹配项进行遍历
for (int l = 1; l < dwPointNum; l++)
{
if (ObjInfo[i].trace.obj_trace[l].x_ == ptLast.x_ && ObjInfo[i].trace.obj_trace[l].y_ == ptLast.y_)
{
// Draw a point
//描绘目标中心点
pRGBIn[ObjInfo[i].trace.obj_trace[l].y_ * dwStep + ObjInfo[i].trace.obj_trace[l].x_ * 3] = bBlue;
pRGBIn[ObjInfo[i].trace.obj_trace[l].y_ * dwStep + ObjInfo[i].trace.obj_trace[l].x_ * 3 + 1] = bGreen;
pRGBIn[ObjInfo[i].trace.obj_trace[l].y_ * dwStep + ObjInfo[i].trace.obj_trace[l].x_ * 3 + 2] = bRed;
}
else
{
// Draw line
if (abs(ObjInfo[i].trace.obj_trace[l].x_ - ptLast.x_) > abs(ObjInfo[i].trace.obj_trace[l].y_ - ptLast.y_))
{
double dk = ((double)ObjInfo[i].trace.obj_trace[l].y_ - ptLast.y_) / (ObjInfo[i].trace.obj_trace[l].x_ - ptLast.x_);
double b = ObjInfo[i].trace.obj_trace[l].y_ - ObjInfo[i].trace.obj_trace[l].x_ * dk;
int colMin = ObjInfo[i].trace.obj_trace[l].x_;
int colMax = ptLast.x_;
if (colMin > colMax)
{
int dwTemp = colMin;
colMin = colMax;
colMax = dwTemp;
}
for (int col = colMin; col <= colMax; col++)
{
int row = (int)(dk * col + b + 0.5);
row = row < height ? row : height - 1;
row = row >= 0 ? row : 0;
pRGBIn[row * dwStep + col * 3] = bBlue;
pRGBIn[row * dwStep + col * 3 + 1] = bGreen;
pRGBIn[row * dwStep + col * 3 + 2] = bRed;
if (++row < height)
{
pRGBIn[row * dwStep + col * 3] = bBlue;
pRGBIn[row * dwStep + col * 3 + 1] = bGreen;
pRGBIn[row * dwStep + col * 3 + 2] = bRed;
}
else if ((row -= 2) >= 0)
{
pRGBIn[row * dwStep + col * 3] = bBlue;
pRGBIn[row * dwStep + col * 3 + 1] = bGreen;
pRGBIn[row * dwStep + col * 3 + 2] = bRed;
}
}
}
else
{
double dk = ((double)ObjInfo[i].trace.obj_trace[l].x_ - ptLast.x_) / (ObjInfo[i].trace.obj_trace[l].y_ - ptLast.y_);
double b = ObjInfo[i].trace.obj_trace[l].x_ - ObjInfo[i].trace.obj_trace[l].y_ * dk;
int rowMin = ObjInfo[i].trace.obj_trace[l].y_;
int rowMax = ptLast.y_;
if (rowMin > rowMax)
{
int dwTemp = rowMin;
rowMin = rowMax;
rowMax = dwTemp;
}
for (int row = rowMin; row <= rowMax; row++)
{
int col = (int)(dk * row + b + 0.5);
col = col < width ? col : width - 1;
col = col >= 0 ? col : 0;
pRGBIn[row * dwStep + col * 3] = bBlue;
pRGBIn[row * dwStep + col * 3 + 1] = bGreen;
pRGBIn[row * dwStep + col * 3 + 2] = bRed;
if (++col < width)
{
pRGBIn[row * dwStep + col * 3] = bBlue;
pRGBIn[row * dwStep + col * 3 + 1] = bGreen;
pRGBIn[row * dwStep + col * 3 + 2] = bRed;
}
else if ((col -= 2) >= 0)
{
pRGBIn[row * dwStep + col * 3] = bBlue;
pRGBIn[row * dwStep + col * 3 + 1] = bGreen;
pRGBIn[row * dwStep + col * 3 + 2] = bRed;
}
}
}
}
ptLast = ObjInfo[i].trace.obj_trace[l];
}
}
}
}