ProcessOn在线作图工具使用指南

class TemplateLibrary:    def __init__(self):        self.templates = {}        self.next_id = 1    def add_template(self, name, category, tags, content):        tid = self.next_id        self.templates[tid] = {'id': tid, 'name': name, 'category': category, 'tags': tags, 'content': content, 'fork_count': 0}        self.next_id += 1        return tid    def search(self, keyword=None, category=None, tags=None):        results = list(self.templates.values())        if keyword:            results = [t for t in results if keyword in t['name']]        if category:            results = [t for t in results if t['category'] == category]        if tags:            results = [t for t in results if set(tags) & set(t['tags'])]        return results    def fork(self, template_id, user_space):        tmpl = self.templates[template_id]        forked = dict(tmpl)        forked['id'] = self.next_id        forked['parent_id'] = template_id        forked['owner'] = user_space        self.templates[forked['id']] = forked        self.templates[template_id]['fork_count'] += 1        return forked['id'] lib = TemplateLibrary()lib.add_template('RAG系统架构', '技术架构', ['RAG', 'LLM'], {'nodes': ['文档预处理', 'Embedding', '向量库', 'LLM生成']})results = lib.search(keyword='RAG')print(f'搜索结果: {[t["name"] for t in results]}')forked_id = lib.fork(results[0]['id'], 'user_alice')print(f'Fork后ID: {forked_id}')

import jsonfrom datetime import datetimeclass VersionManager:    def __init__(self):        self.versions = []    def save_snapshot(self, diagram_data, author='system'):        snapshot = {'version': len(self.versions) + 1, 'timestamp': datetime.now().isoformat(), 'author': author, 'elements': json.loads(json.dumps(diagram_data))}        self.versions.append(snapshot)        return snapshot['version']    def diff(self, v1, v2):        s1 = {e['id']: e for e in self.versions[v1-1]['elements']}        s2 = {e['id']: e for e in self.versions[v2-1]['elements']}        added = [s2[k] for k in set(s2) - set(s1)]        removed = [s1[k] for k in set(s1) - set(s2)]        modified = [{'old': s1[k], 'new': s2[k]} for k in set(s1) & set(s2) if s1[k] != s2[k]]        return {'added': added, 'removed': removed, 'modified': modified} vm = VersionManager()vm.save_snapshot([{'id': 'api-gw', 'label': 'API网关'}], 'architect')vm.save_snapshot([{'id': 'api-gw', 'label': 'API网关'}, {'id': 'cache', 'label': 'KV缓存'}], 'eng')d = vm.diff(1, 2)print(f'新增: {[e["label"] for e in d["added"]]}')

import jsonfrom datetime import datetimefrom collections import OrderedDict class DiagramElement:    def __init__(self, eid, etype, label, x=0, y=0):        self.id = eid        self.type = etype        self.label = label        self.x = x        self.y = y        self.style = {'fill': '#ffffff', 'stroke': '#333333'}    def to_dict(self):        return {'id': self.id, 'type': self.type, 'label': self.label, 'x': self.x, 'y': self.y, 'style': self.style} class Diagram:    def __init__(self, name, diagram_type='flowchart'):        self.name = name        self.diagram_type = diagram_type        self.elements = OrderedDict()        self.versions = []        self.comments = {}    def add_element(self, element):        self.elements[element.id] = element    def add_comment(self, element_id, author, text):        if element_id not in self.comments:            self.comments[element_id] = []        self.comments[element_id].append({'author': author, 'text': text, 'timestamp': datetime.now().isoformat(), 'resolved': False})    def save_version(self, author='system'):        snapshot = {'version': len(self.versions) + 1, 'timestamp': datetime.now().isoformat(), 'author': author, 'data': {eid: e.to_dict() for eid, e in self.elements.items()}}        self.versions.append(snapshot)        return snapshot['version']    def diff_versions(self, v1, v2):        s1 = self.versions[v1 - 1]['data']        s2 = self.versions[v2 - 1]['data']        added = [s2[k] for k in set(s2) - set(s1)]        removed = [s1[k] for k in set(s1) - set(s2)]        modified = [{'id': k, 'old': s1[k], 'new': s2[k]} for k in set(s1) & set(s2) if s1[k] != s2[k]]        return {'added': added, 'removed': removed, 'modified': modified}    def export_svg(self):        svg_parts = ['<svg xmlns="http://www.w3.org/2000/svg">']        for e in self.elements.values():            x, y, w, h = e.x, e.y, 120, 40            svg_parts.append(f'<rect x="{x}" y="{y}" width="{w}" height="{h}" fill="{e.style["fill"]}" stroke="{e.style["stroke"]}"/>')            svg_parts.append(f'<text x="{x + w//2}" y="{y + h//2 + 5}" text-anchor="middle" font-size="12">{e.label}</text>')        svg_parts.append('</svg>')        return '\n'.join(svg_parts)    def export_json(self):        return json.dumps({'name': self.name, 'type': self.diagram_type, 'elements': {eid: e.to_dict() for eid, e in self.elements.items()}, 'comments': self.comments}, ensure_ascii=False, indent=2) def demo():    diagram = Diagram('RAG系统架构', 'architecture')    diagram.add_element(DiagramElement('preprocess', 'rect', '文档预处理', 50, 50))    diagram.add_element(DiagramElement('embedding', 'rect', 'Embedding模型', 250, 50))    diagram.add_element(DiagramElement('vectordb', 'cylinder', '向量数据库', 450, 50))    diagram.add_element(DiagramElement('llm', 'rect', 'LLM生成', 250, 150))    diagram.save_version('architect')    diagram.add_element(DiagramElement('reranker', 'rect', '重排序', 350, 150))    diagram.elements['vectordb'].style['fill'] = '#e8f4fd'    diagram.save_version('backend_eng')    diff = diagram.diff_versions(1, 2)    print(f'新增元素: {[e["label"] for e in diff["added"]]}')    print(f'修改元素: {[m["id"] for m in diff["modified"]]}')    diagram.add_comment('reranker', 'PM', '需要支持交叉注意力重排序')    svg = diagram.export_svg()    print(f'SVG导出行数: {len(svg.splitlines())}')    json_data = diagram.export_json()    print(f'JSON导出大小: {len(json_data)} 字符')    print(f'评论数: {sum(len(v) for v in diagram.comments.values())}') if __name__ == '__main__':    demo()