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Bug #7769

Mandelbrot example not working on Ubuntu

Added by Alex Schulmann about 2 years ago. Updated about 2 years ago.

Status:
New
Priority:
Normal
Assignee:
-
Target version:
-
Start date:
10/09/2020
Due date:
% Done:

0%

Estimated time:

Description

The mandelbrot example compiles and runs but the image is not displayed on both Ubuntu 20.04 and 16.04

I install GraphicsMagic by "sudo apt-get install libgraphicsmagick++1-dev" and build build Wt4.4.0 from sources with "cmake -DWT_WRASTERIMAGE_IMPLEMENTATION=GraphicsMagick ..".

Browser tested: Firefox and Opera. The example runs on Win10 without problems.

Own Code using WRasterImage shows the same behavior.

#1

Updated by Jonathan lisein about 2 years ago

Hi,
I go the exact same problem (Wt 4.4++ build from last source)
Solved this by removing and reinstalling GraphickMagick followed by recompillation of Wt (cmake + make)
Now I am able to start using Wt:WRasterImage.
Mandelbrot example still not working but adding img->done(); line 115 of MandelBrotImage.C solves the bug, as suggested here ; https://github.com/emweb/wt/pull/166/
Jo

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