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- #include "cdrapp.h"
- #include <algorithm>
- #include <cstdio>
- #include <map>
- #include <vector>
- #include <iostream>
- #include <fstream>
- #include <chrono>
- #include <math.h>
- #define GET_BOUNDING_BOX(box) \
- GetBoundingBox(&(box).x, &(box).y, &(box).w, &(box).h, false)
- #define ZERO_4PC 0, 0, 0, 0
- typedef struct {
- double x; // 左下角 x 坐标
- double y; // 左下角 y 坐标
- double w; // 宽度
- double h; // 高度
- } BoundingBox;
- // 扩展边界框
- void expand_bounding_boxes(std::vector<BoundingBox>& boxes, double exp) {
- for (auto& box : boxes) {
- // 扩展宽度和高度
- box.w += 2 * exp; // 左右各扩展
- box.h += 2 * exp; // 上下各扩展
- // 调整左下角坐标
- box.x -= exp; // 向左扩展
- box.y -= exp; // 向下扩展
- }
- }
- double get_bounding_box_area(BoundingBox box) { return box.w * box.h; }
- // 自定义比较函数,按 BoundingBox 的面积大小进行排序
- bool compare_bounding_boxes(const std::pair<int, BoundingBox> &a,
- const std::pair<int, BoundingBox> &b) {
- return get_bounding_box_area(a.second) > get_bounding_box_area(b.second);
- }
- // 查找父节点
- int find(std::vector<int>& parent, int x) {
- if (parent[x] != x) {
- parent[x] = find(parent, parent[x]);
- }
- return parent[x];
- }
- // 合并两个集合
- void unionSet(std::vector<int>& parent, int x, int y) {
- int xroot = find(parent, x);
- int yroot = find(parent, y);
- parent[xroot] = yroot;
- }
- // 检查两个矩形是否重叠
- bool isOverlapped(const BoundingBox &a, const BoundingBox &b) {
- return a.x < b.x + b.w && a.x + a.w > b.x && a.y < b.y + b.h && a.y + a.h > b.y;
- } // 函数使用AABB(Axis-Aligned Bounding Box)碰撞检测
- bool BBox_DrawRectangle(corel *cdr, double exp) {
- BoundingBox box;
- auto sr = cdr->ActiveSelectionRange; // 获得选择范围
- auto al = cdr->ActiveLayer; // 获得当前层
- if (!sr || !al) return false;
-
- BeginOpt(cdr);
- auto srs = cdr->CreateShapeRange();
- // CorelDRAW Shapes 物件 Item 编号从1开始
- for (auto i = 0; i != sr->Count; i++) {
- sr->Shapes->Item[i + 1]->GET_BOUNDING_BOX(box); // 获得Shapes的BoundingBox,赋值到box
- if (fabs(exp) > 0.02 ) { box.w += 2 * exp; box.h += 2 * exp; box.x -= exp; box.y -= exp; }
-
- auto s = al->CreateRectangle2(box.x, box.y, box.w, box.h, ZERO_4PC); // 使用BoundingBox box 创建一个矩形
- s->Outline->Color->RGBAssign(0, 255, 0);
- srs->Add(s);
- }
- srs->CreateSelection();
-
- sprintf(infobuf, "提示: 标记画框数量: %d 个\n容差值请使用小键盘输入", srs->Count);
- EndOpt(cdr);
- return true;
- }
- bool AutoMakeSelection(corel *cdr) {
- auto sr = cdr->ActiveSelectionRange;
- if (0 == sr->Count) {
- auto all = cdr->ActiveDocument->ActivePage->Shapes->All();
- all->CreateSelection();
- }
- return true;
- }
- // 快速分组重叠的区域, 使用算法"Union-Find" 算法。这个算法可以有效地处理这种并集问题。
- // 算法的时间复杂度为 O(n^2),其中 n 是矩形的数量。如果矩形数量较多,可以考虑使用更高效的算法,
- // 例如使用四叉树(Quadtree)或者区间树(Interval Tree)等数据结构来加速计算。
- bool Box_AutoGroup(corel *cdr, double exp) {
- BoundingBox box;
- auto sr = cdr->ActiveSelectionRange; // 获得选择范围
- auto al = cdr->ActiveLayer; // 获得当前层
- if (!sr || !al) return false;
- auto start = std::chrono::high_resolution_clock::now(); // 开始时间
- BeginOpt(cdr);
- std::vector<BoundingBox> boxes;
- std::vector<int> parent;
- // CorelDRAW Shapes 物件 Item 编号从1开始
- for (auto i = 0; i != sr->Count; i++) {
- sr->Shapes->Item[i + 1]->GET_BOUNDING_BOX(box);
- boxes.push_back(box);
- parent.push_back(i);
- }
- // 扩展边界框,或者收缩边界框
- if (fabs(exp) > 0.02 ) {
- expand_bounding_boxes(boxes, exp);
- }
- // 实现 Union-Find 算法来合并重叠的区域
- for (int i = 0; i < boxes.size(); i++) {
- for (int j = i + 1; j < boxes.size(); j++) {
- if (isOverlapped(boxes[i], boxes[j])) {
- unionSet(parent, i, j);
- }
- }
- }
- double runtime[2] = {0,0};
- auto end = std::chrono::high_resolution_clock::now();
- std::chrono::duration<double> duration = end - start;
- runtime[0] = duration.count();
- // 输出分组结果到文件
- // std::ofstream output_file("D:\\group.txt");
- // if (output_file.is_open()) {
- // std::map<int, std::vector<int>> groups;
- // for (int i = 0; i < parent.size(); i++) {
- // int root = find(parent, i);
- // groups[root].push_back(i + 1); // CorelDRAW Shapes 物件 Item 编号从1开始
- // }
- // for (const auto& group : groups) {
- // output_file << "Group: ";
- // for (int index : group.second) {
- // output_file << index << " ";
- // }
- // output_file << std::endl;
- // }
- // auto end = std::chrono::high_resolution_clock::now(); // 结束时间
- // // 计算持续时间
- // std::chrono::duration<double> duration = end - start;
- // output_file << "Execution time: " << duration.count() << " seconds\n";
- // output_file.close();
- // }
- // 输出分组结果
- std::map<int, std::vector<int>> groups;
- for (int i = 0; i < parent.size(); i++) {
- int root = find(parent, i);
- groups[root].push_back(i + 1); // CorelDRAW Shapes 物件 Item 编号从1开始
- }
- auto srgp = cdr->CreateShapeRange();
- auto srs = cdr->CreateShapeRange();
- cdr->ActiveDocument->ClearSelection();
- // 原来 没有取消选择 最初速度
- // Execution time: 63.0305 seconds
- // srgp->GET_BOUNDING_BOX(box);
- // al->CreateRectangle2(box.x, box.y, box.w, box.h, ZERO_4PC); // 使用边界 创建一个矩形
- // box边界 转左上和右下坐标 box.x, box.y + box.h, box.x + box.w, box.y
- // auto sh = cdr->ActivePage->SelectShapesFromRectangle(box.x, box.y + box.h, box.x + box.w, box.y, false);
- // sh->Group();
- // 使用 SelectShapesFromRectangle 框选的形状进行群组
- // Execution time: 2.44753 seconds
- // cdr->ActiveDocument->ClearSelection(); // 使用取消选择
- // Execution time: 1.7432 seconds
- // srgp->CreateSelection();
- // cdr->ActiveSelectionRange->Group();
- // Execution time: 1.87662 seconds
- // 分组分别进行群组
- for (const auto& group : groups) {
- for (int index : group.second)
- srgp->Add(sr->Shapes->Item[index]);
-
- if(sr->Count >1)
- srs->Add(srgp->Group());
- else
- srs->AddRange(srgp);
- srgp->RemoveAll();
- }
- srs->CreateSelection();
- // 计算持续时间
- duration = std::chrono::high_resolution_clock::now() - start;
- runtime[1] = duration.count();
- sprintf(infobuf, "选择物件: %d 个, 分组: %.2f秒\n总共群组: %d 组, 总时间: %.2f秒", sr->Count, runtime[0] + 0.01, srs->Count, runtime[1] + 0.02);
- EndOpt(cdr);
- return true;
- }
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