fix gc undeclare#883
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corranwebster
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Apr 6, 2023
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Just add gc as the first argument to the function
| def _draw_plot(self, *args, **kw): | ||
| """Draws the 'plot' layer.""" | ||
| self._gather_points() | ||
| gc = args[0] |
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If you want the gc to be the first argument to the function, make it the first argument to the function!
Doing this is fragile, not self-documenting and will produce confusing error messages if used incorrectly.
corranwebster
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For reference, the prototype of the |
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Found that the gc (GraphicsContext) is referenced before construction in the line 136. This has caused the test chaco/chaco/examples/demo/simple_polar.py to fail.
The solution is to find the gc in the context. A gc context is actually conveniently included in the *args, thus retrieving that gc as GraphicContext to solve the problem. closes #875