def testInterpolateOpacityByZoom(self):
self.assertEqual(
QgsMapBoxGlStyleConverter.parseInterpolateOpacityByZoom({
'base':
1,
'stops': [[0, 0.1], [150, 0.15], [250, 0.2]]
}).expressionString(),
"CASE WHEN @zoom_level < 0 THEN set_color_part(@symbol_color, 'alpha', 0.1 * 255) WHEN @zoom_level >= 0 AND @zoom_level < 150 THEN set_color_part(@symbol_color, 'alpha', scale_linear(@zoom_level, 0, 150, 0.1 * 255, 0.15 * 255)) WHEN @zoom_level >= 150 AND @zoom_level < 250 THEN set_color_part(@symbol_color, 'alpha', scale_linear(@zoom_level, 150, 250, 0.15 * 255, 0.2 * 255)) WHEN @zoom_level >= 250 THEN set_color_part(@symbol_color, 'alpha', 0.2) END"
)
self.assertEqual(
QgsMapBoxGlStyleConverter.parseInterpolateOpacityByZoom({
'base':
1,
'stops': [[0, 0.1], [150, 0.15]]
}).expressionString(),
"set_color_part(@symbol_color, 'alpha', scale_linear(@zoom_level, 0, 150, 25.5, 38.25))"
)
self.assertEqual(
QgsMapBoxGlStyleConverter.parseInterpolateOpacityByZoom({
'base':
2,
'stops': [[0, 0.1], [150, 0.15]]
}).expressionString(),
"set_color_part(@symbol_color, 'alpha', 25.5 + 0 * (2^(@zoom_level-0)-1)/(2^(150-0)-1))"
)
def testInterpolateOpacityByZoom(self):
self.assertEqual(QgsMapBoxGlStyleConverter.parseInterpolateOpacityByZoom({'base': 1,
'stops': [[0, 0.1],
[150, 0.15],
[250, 0.2]]
}, 255).expressionString(),
"CASE WHEN @vector_tile_zoom < 0 THEN set_color_part(@symbol_color, 'alpha', 25.5) WHEN @vector_tile_zoom >= 0 AND @vector_tile_zoom < 150 THEN set_color_part(@symbol_color, 'alpha', scale_linear(@vector_tile_zoom,0,150,25.5,38.25)) WHEN @vector_tile_zoom >= 150 AND @vector_tile_zoom < 250 THEN set_color_part(@symbol_color, 'alpha', scale_linear(@vector_tile_zoom,150,250,38.25,51)) WHEN @vector_tile_zoom >= 250 THEN set_color_part(@symbol_color, 'alpha', 51) END")
self.assertEqual(QgsMapBoxGlStyleConverter.parseInterpolateOpacityByZoom({'base': 1,
'stops': [[0, 0.1],
[150, 0.15],
[250, 0.2]]
}, 100).expressionString(),
"CASE WHEN @vector_tile_zoom < 0 THEN set_color_part(@symbol_color, 'alpha', 10) WHEN @vector_tile_zoom >= 0 AND @vector_tile_zoom < 150 THEN set_color_part(@symbol_color, 'alpha', scale_linear(@vector_tile_zoom,0,150,10,15)) WHEN @vector_tile_zoom >= 150 AND @vector_tile_zoom < 250 THEN set_color_part(@symbol_color, 'alpha', scale_linear(@vector_tile_zoom,150,250,15,20)) WHEN @vector_tile_zoom >= 250 THEN set_color_part(@symbol_color, 'alpha', 20) END")
self.assertEqual(QgsMapBoxGlStyleConverter.parseInterpolateOpacityByZoom({'base': 1,
'stops': [[0, 0.1],
[150, 0.15]]
}, 255).expressionString(),
"set_color_part(@symbol_color, 'alpha', scale_linear(@vector_tile_zoom,0,150,25.5,38.25))")
self.assertEqual(QgsMapBoxGlStyleConverter.parseInterpolateOpacityByZoom({'base': 2,
'stops': [[0, 0.1],
[150, 0.15]]
}, 255).expressionString(),
"set_color_part(@symbol_color, 'alpha', scale_exp(@vector_tile_zoom,0,150,25.5,38.25,2))")
self.assertEqual(QgsMapBoxGlStyleConverter.parseInterpolateOpacityByZoom({'base': 2,
'stops': [[0, 0.1],
[150, 0.1]]
}, 255).expressionString(),
"set_color_part(@symbol_color, 'alpha', 25.5)")