I use QGIS 2.14.2. I set up labels names of a line vector and set it up as curved - looks like in this screenshotenter image description here

But when I want to print it in print composer it doesn't show up enter image description here

It only shows labels if they aren't curved. enter image description here

What can I do to fix it. Curved labels are looking really nice (for compared to parallel one.

  • Try to reduce the font size, or use map unit for fonts. – nagib May 23 '16 at 11:33
  • I tried...nothing happens. – Jost Hobic May 23 '16 at 14:49
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    I think is too short line for that text – nagib May 23 '16 at 15:44

The problem is with map scale. Too short line for those words.

enter image description here

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    I see that is connected with scale of a map in print composer. – Jost Hobic May 23 '16 at 16:28
  • 'connected with scale of a map in print composer', I'm having similar problems with symbol display in the print composer window - set to A5 portrait scale - some symbols have to be increased to 30 pixels and they appear overly large in the print composer window, but appear the required size when I export the file as a PDF. Previously at 10 pixels, the symbols looked normal in the print composer window, but when exported as a PDF on the map they looked really small. – Jonathan Hall Oct 23 '17 at 15:24

Another possibility is that the "Maximum angle between curved characters" (Layer properties->Labels->Placement) might have to be adjusted. If the line segment is too tightly curved, the label will not be displayed if it requires a higher angle than the one specified.

This seems to be the case, since the missing label corresponds to the line with the highest curvature.

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  • This helped me when drawing lines for manual labeling. The curves were so close to the default of 25° that even a few pixels difference in the calculation at different map scales made a few labels disappear. – rovyko Mar 20 '18 at 15:47

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