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dayuan.jiang
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The canvas now fills the window and the chat floats on its right. draw.io is served from our own origin (public/drawio, downloaded at build time and checked against the release's SHA-256), so the app can drive the editor directly: - every AI change becomes a version card with a thumbnail; compare, restore or undo it, and Ctrl+Z on the canvas takes an AI change back in one step - shapes the AI just changed are highlighted on the canvas - selected shapes appear as a chip and are sent to the model - the app's own canvas toolbar, shape library and page tabs replace draw.io's chrome - new start screen, session rename and switcher, open .drawio files - settings split into Models & keys, Appearance, Advanced and About - phones switch between canvas and chat - dark mode keeps the diagram on a white sheet and no longer flashes With an external draw.io (NEXT_PUBLIC_DRAWIO_BASE_URL) the app falls back to draw.io's own toolbar and the features above that need same origin are off. The chat logic moved from the 1500-line chat panel into a chat engine plus small UI components; zustand holds canvas, versions, settings and UI state.
81 lines
2.5 KiB
Markdown
81 lines
2.5 KiB
Markdown
# 常见问题解答 (FAQ)
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---
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## 1. 无法导出 PDF
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**问题**: Web 版点击导出 PDF 后跳转到 `convert.diagrams.net/node/export` 然后无响应
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**原因**: 嵌入式 Draw.io 不支持直接 PDF 导出，依赖外部转换服务，在 iframe 中无法正常工作
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**解决方案**: 先导出为图片（PNG），再打印转成 PDF
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**相关 Issue**: #539, #125
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---
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## 2. 无法访问 embed.diagrams.net（离线/内网部署）
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**问题**: 内网环境提示"找不到 embed.diagrams.net 的服务器 IP 地址"
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**关键点**: 应用现在自带一份 draw.io，从 `/drawio` 提供，浏览器不再需要访问 `embed.diagrams.net`。如果仍然看到这个错误，说明镜像是用 `NEXT_PUBLIC_DRAWIO_BASE_URL=https://embed.diagrams.net`（旧版 Dockerfile 的默认值）构建的，去掉这个构建参数重新构建即可。详见[离线部署](./offline-deployment.md)。
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`NEXT_PUBLIC_*` 环境变量是**构建时**变量，会被打包到 JS 代码中，**运行时设置无效**！
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**如果仍想使用单独的 draw.io 服务器**，在构建时通过 `args` 传入：
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```yaml
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# docker-compose.yml
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services:
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drawio:
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image: jgraph/drawio:latest
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ports: ["8080:8080"]
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next-ai-draw-io:
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build:
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context: .
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args:
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- NEXT_PUBLIC_DRAWIO_BASE_URL=http://你的服务器IP:8080/
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ports: ["3000:3000"]
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env_file: .env
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```
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**内网用户**: 在外网修改 Dockerfile 并构建镜像，再传到内网使用
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**相关 Issue**: #295, #317
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---
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## 3. 自建模型只思考不画图
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**问题**: 本地部署的模型（如 Qwen、LiteLLM）只输出思考过程，不生成图表
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**可能原因**:
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1. **模型太小** - 小模型难以正确遵循 tool calling 指令，建议使用 32B+ 参数的模型
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2. **未开启 tool calling** - 模型服务需要配置 tool use 功能
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**解决方案**: 开启 tool calling，例如 vLLM：
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```bash
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python -m vllm.entrypoints.openai.api_server \
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--model Qwen/Qwen3-32B \
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--enable-auto-tool-choice \
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--tool-call-parser hermes
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```
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**相关 Issue**: #269, #75
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---
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## 4. 上传图片后提示"未提供图片"
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**问题**: 上传图片后，系统显示"未提供图片"错误
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**可能原因**:
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1. 模型不支持视觉功能（如 Kimi K2、DeepSeek、Qwen 文本模型）
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**解决方案**:
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- 使用支持视觉的模型：GPT-5.2、Claude 4.5 Sonnet、Gemini 3 Pro
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- 模型名带 `vision` 或 `vl` 的支持图片
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- 更新到最新版本（v0.4.9+）
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**相关 Issue**: #324, #421, #469
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