def test_lin_interpolate(self):
xs = [-1.5]
curve = [(-2, -100), (2, 100)]
self.assertEquals(
interpolate.lin_interpolate(xs, curve),
[(-1.5, -75.0)]
)
def get_mapped_color(normalized_value, colormap, clip=True, cast=None):
color_attrs = colormap.keys()
mapped_color = {}
for attr in color_attrs:
mapped_color[attr] = interpolate.lin_interpolate(
[normalized_value], colormap[attr], clip=clip)[0][1]
if cast:
mapped_color[attr] = cast(mapped_color[attr])
return mapped_color