智慧公安指挥中心大数据信息化两中心两基地系统方案

1. xld转换为Region

生成与调用函数

gen_cross_contour_xld (CrossXld, Rows, UpdateCols, 6, 0)
get_xld_region (CrossXld, xldRegions)

函数实现 get_xld_region

* 计算XLD个数
count_obj (BaseXld, Number)
* 生成空的区域（结果）
gen_empty_region (xldRegions)

* 循环生成区域
for Index := 1 to Number by 1
    * 选择单个xld
    select_obj (BaseXld, ObjectSelected, Index)
    * 获取xld 坐标
    get_contour_xld (ObjectSelected, Rowxld, Colxld)
    * 生成区域
    gen_region_polygon(SubRegion, Rowxld, Colxld)
    * 添加到结果区域
    concat_obj (xldRegions, SubRegion, xldRegions)
endfor

union1 (xldRegions, xldRegions)

    
return ()

2. C++ 实现

头文件函数定义

void get_xld_region(HObject ho_BaseXld, HObject *ho_xldRegions);

void get_xld_region (HObject ho_BaseXld, HObject *ho_xldRegions)
{
  HObject  ho_ObjectSelected, ho_SubRegion;
  HTuple  hv_Number, hv_Index, hv_Rowxld, hv_Colxld;

  //计算XLD个数
  CountObj(ho_BaseXld, &hv_Number);
  //生成空的区域（结果）
  GenEmptyRegion(&(*ho_xldRegions));

  //循环生成区域
  HTuple end_val7 = hv_Number;
  HTuple step_val7 = 1;
  for (hv_Index=1; hv_Index.Continue(end_val7, step_val7); hv_Index += step_val7)
  {
    //选择单个xld
    SelectObj(ho_BaseXld, &ho_ObjectSelected, hv_Index);
    //获取xld 坐标
    GetContourXld(ho_ObjectSelected, &hv_Rowxld, &hv_Colxld);
    //生成XLD区域
    GenRegionPolygon(&ho_SubRegion, hv_Rowxld, hv_Colxld);
    //添加到结果区域
    ConcatObj((*ho_xldRegions), ho_SubRegion, &(*ho_xldRegions));
  }
 

  Union1((*ho_xldRegions), &(*ho_xldRegions));
  return;
}

3.区域写入图片

区域写入图片