1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
++++++++++++++++++++++
Optimizing Performance
++++++++++++++++++++++
There are several ways to optimize the performance of certain aspects of
Ginga's operation.
OpenCv Acceleration
-------------------
Ginga includes support for OpenCv accelerated operations (e.g. rotation
and rescaling). *This support is used by default if the package is installed*.
To enable OpenCv support, install the python `opencv` module (you can
find it `here <https://pypi.python.org/pypi/opencv-python>`_).
OpenGl Acceleration
-------------------
Ginga includes support for OpenGL rendering with Qt or Gtk back ends.
To use this with the Reference Viewer, simply append the command line
option --opengl. This can be particularly useful with high resolution
displays.
Note that certain aspects of normal rendering for Ginga canvas objects
are unavailable or different with OpenGL:
* Inability to specify ``linestyle`` parameter (lines are always solid)
* Inability to specify ``linewidth`` parameter (always defaults to 1)
|
