Defect #13575: Graphic characters not exported - Redmine

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Defect #13575

closed

Graphic characters not exported

Added by Ivan Cenov over 11 years ago. Updated almost 9 years ago.

Status:

Closed

Priority:

Normal

Assignee:

Category:

PDF export

Target version:

Start date:

Due date:

% Done:

Estimated time:

Resolution:

Fixed

Affected version:

2.3.0

Description

Here is a sample how the graphic characters are not exported well. This is a sample state machine diagram:


          ┌───────────────┐        evLowTemp, evHighTemp           ┌───────────────┐
          │  sP1_BADTEMP  ├───────────────────◄────────────────────┤ sP1_LOWVOLTAGE│
          └───────┬───────┘                (P1a4)                  └───────┬───────┘
                  ▲                                                        ▲
                  │ evLowTemp, evHighTemp                                  │ evLowVoltage
                  │       (P1a4)                                           │    (P1a5)
                  │                    ┌───────────────┐                   │
                  └────────────────────┤   sP1_IDLE    ├───────────────────┘
                                       └───────────────┘

All versions are affected. Try to export to PDF. You will see squares instead of lines and arrows in the exported PDF file.

Files

Download all files

jkjkjk-306.pdf (128 KB) jkjkjk-306.pdf	Redmine 3.2 sample pdf	Jun NAITOH, 2015-12-10 12:42
Graphic_characters_pdf_redmine320.png (40.5 KB) Graphic_characters_pdf_redmine320.png		Jun NAITOH, 2015-12-10 12:44

Related issues

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Updated by Filou Centrinov over 11 years ago

Related with #10681. Same problem with persian or chinese characters.

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Updated by Ivan Cenov over 11 years ago

It seems the problem is the font that is used for rendering the content. There is a set of fonts that are used and they are in source:/trunk/lib/plugins/rfpdf/lib/fonts Probably these fonts have no defined graphic characters in them.

Font selection is made in source:/trunk/lib/redmine/export/pdf.rb#L40

I suspect that the missing characters should be added to the fonts. However I do not know how ... :(

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Updated by Filou Centrinov over 11 years ago

The font (freesans) can be easily updated from http://sourceforge.net/projects/tcpdf/files/

But you will still have the problem with displaying your graphic, because pre-Tags are not considered yet and so it's not displayed in mono font.

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Updated by Filou Centrinov over 11 years ago

How ever, I regret an font file update, because the font file are much bigger than before. Only an update for the main font (FreeSans) would increase the pdf file size about 220 kb. ... and not solving your problem.

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Updated by Ivan Cenov over 11 years ago

I use pre tags because they preserve character width. The following is without pre-tags:

┌───────────────┐ evLowTemp, evHighTemp ┌───────────────┐
│ sP1_BADTEMP ├───────────────────◄────────────────────┤ sP1_LOWVOLTAGE│
└───────┬───────┘ (P1a4) └───────┬───────┘

The size of PDF file is not so important.

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Updated by Filou Centrinov over 11 years ago

Ivan Cenov wrote:

I use pre tags because they preserve character width. The following is without pre-tags:

┌───────────────┐ evLowTemp, evHighTemp ┌───────────────┐
│ sP1_BADTEMP ├───────────────────◄────────────────────┤ sP1_LOWVOLTAGE│
└───────┬───────┘ (P1a4) └───────┬───────┘

This is like you will see it in the pdf after the font update. I think this won't satisfy you.

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