Chinese cannot be displayed

[jhr990206]

Hello!

The code in the picture comes from the file "viewer_imgui.cpp". I tried to modify the content in Text to Chinese, but what was displayed “?”, Chinese cannot be displayed. Can you provide me with a solution? Thank you!

[Liangliang Nan]

In line 97 of "viewer_imgui.cpp", you see

io.Fonts->AddFontFromMemoryCompressedTTF(droid_sans_compressed_data, droid_sans_compressed_size, static_cast<float>(font_size * dpi_scaling()));

Here the font "droid_sans_compressed_data" doesn't support Chinese.

You will first need to add a font that supports Chinese, e.g.,

io.Fonts->AddFontFromFileTTF("/Users/lnan/Documents/Projects/Easy3D/resources/fonts/cn_Mao.ttf", static_cast<float>(font_size * dpi_scaling()), nullptr, io.Fonts->GetGlyphRangesChineseSimplifiedCommon());

Then input your Chinese characters like:

(const char*)u8"你好".

Below is what I just got:

[jhr990206]

Thank you for your guidance. However, after I made the changes according to your code, The font was successfully modified，but the Chinese still cannot be displayed, as shown in the following picture, which was very confusing for me. I hope to receive your guidance again, thank you very much! The modified code is as follows: &nbsp; &nbsp; void ViewerImGui::reload_font(int font_size) { ImGuiIO&amp; io = ImGui::GetIO(); io.Fonts-&gt;Clear(); &nbsp; &nbsp; &nbsp; &nbsp; /*io.Fonts-&gt;AddFontFromMemoryCompressedTTF(droid_sans_compressed_data, droid_sans_compressed_size, static_cast<float&gt;(font_size * dpi_scaling()));*/ &nbsp; &nbsp; &nbsp; &nbsp; io.Fonts-&gt;AddFontFromFileTTF("C:/Users/23599/Desktop/Easy3D/Easy3D-main/resources/fonts/cn_***.ttf", static_cast<float&gt;(font_size * dpi_scaling()), nullptr, io.Fonts-&gt;GetGlyphRangesChineseSimplifiedCommon()); &nbsp; &nbsp; &nbsp; &nbsp; io.FontGlobalScale = static_cast<float&gt;(1.0 / pixel_ratio()); &nbsp; &nbsp; &nbsp; &nbsp; ImGui_ImplOpenGL3_DestroyDeviceObjects(); } 止水 ***@***.*** &nbsp;

…

------------------&nbsp;原始邮件&nbsp;------------------ 发件人: "tudelft3d/AdTree" ***@***.***&gt;; 发送时间:&nbsp;2023年12月29日(星期五) 上午6:08 ***@***.***&gt;; ***@***.******@***.***&gt;; 主题:&nbsp;Re: [tudelft3d/AdTree] Chinese cannot be displayed (Issue #23) In line 97 of "viewer_imgui.cpp", you see io.Fonts-&gt;AddFontFromMemoryCompressedTTF(droid_sans_compressed_data, droid_sans_compressed_size, static_cast<float&gt;(font_size * dpi_scaling())); Here the font "droid_sans_compressed_data" doesn't support Chinese. You will first need to add a font that supports Chinese, e.g., io.Fonts-&gt;AddFontFromFileTTF("/Users/lnan/Documents/Projects/Easy3D/resources/fonts/cn_Mao.ttf", static_cast<float&gt;(font_size * dpi_scaling()), nullptr, io.Fonts-&gt;GetGlyphRangesChineseSimplifiedCommon()); Then input your Chinese characters like: (const char*)u8"你好". Below is what I just got: Screen.Shot.2023-12-28.at.23.08.17.png (view on web) — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***&gt;

[Liangliang Nan]

Please format your code (I couldn't read it), and the image is also not attached.

[Liangliang Nan]

See the following comment in 'viewer_imgui.cpp':

// If you want to show other languages, e.g., Chinese, you first need to use a TTF font file that supports Chinese. You can replace the above line by:
 io.Fonts->AddFontFromFileTTF("/Users/lnan/Documents/Projects/Easy3D/resources/fonts/cn_Mao.ttf", static_cast<float>(font_size * dpi_scaling()), nullptr, io.Fonts->GetGlyphRangesChineseSimplifiedCommon());
// Then input the Chinese characters like: 
(const char*)u8"你好". 

[Liangliang Nan]

I will reply here (Please don't create another issue).
As I have shown you before, the code can already visualize Chinese characters.
Please do:
-) show your code of "AddFontFromFileTTF(...)";
-) make sure your font file supports Chinese. You can send me your file so I can check.
-) make sure your font file has been successfully loaded.

[jhr990206]

This file has been mod
code.txt
ified based on your code. I hope you can help me check for any issues. Thank you very much!

[Liangliang Nan]

Can you try to change (in both the folder where you store the ttf file and your code) your font file from cn_***.ttf to cn_Mao.ttf? Below is what I get:

I suspect either your IDE, or the code, or your OS doesn't support Chinese characters in the path string.
Let me know if this solves the problem.

[jhr990206]

The problem has been resolved! Thank you very much for helping me solve the problem!&nbsp; 止水 ***@***.*** &nbsp;

…

------------------&nbsp;原始邮件&nbsp;------------------ 发件人: "Liangliang ***@***.***&gt;; 发送时间: 2024年2月13日(星期二) 晚上11:50 收件人: ***@***.***&gt;; 抄送: ***@***.***&gt;; ***@***.***&gt;; 主题: Re: [tudelft3d/AdTree] Chinese cannot be displayed (Issue #23) 你能试着改变你的字体文件（在你存放ttf文件和你的代码的文件夹中）吗？cn_***.ttf到cn_Mao.ttf? 我怀疑你的IDE，或者代码，或者你的操作系统不支持路径字符串中的中文字符。 让我知道这是否解决了问题。 - 直接回复这封邮件，在GitHub上查看，或取消订阅. 您收到此消息是因为您创建了线程。消息ID:< tudelft3d / AdTree /议题/ 23 / ***@***.***和&gt;

[Liangliang Nan]

Was it due to the Chinese title of the font file?

[jhr990206]

That's right, that's the reason.