0b822c2209
Using std::atan2 gets the right answer directly from dy and dx, without having to fix up quadrant as we needed to with acos (albeit we have to negate dy in some cases, to match prior sense of angles). In the process, it avoids explicit division, which would be an error when the line's length is zero. Change-Id: Ia2923159d38834e08e6f15cbff6766ed419fa804 Reviewed-by: Marc Mutz <marc.mutz@kdab.com> |
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| .. | ||
| aggregate | ||
| corelib | ||
| dbus | ||
| embedded | ||
| gui | ||
| network | ||
| opengl | ||
| qmake | ||
| qpa | ||
| qtconcurrent | ||
| qtestlib | ||
| sql | ||
| touch | ||
| widgets | ||
| xml | ||
| examples.pro | ||
| README | ||
Qt is supplied with a number of example applications that have been written to provide developers with examples of the Qt API in use, highlight good programming practice, and showcase features found in each of Qt's core technologies. Documentation for examples can be found in the Examples section of the Qt documentation.