def testInterpolateByZoom(self):
conversion_context = QgsMapBoxGlStyleConversionContext()
prop, default_val = QgsMapBoxGlStyleConverter.parseInterpolateByZoom({'base': 1,
'stops': [[0, 11],
[150, 15],
[250, 22]]
}, conversion_context)
self.assertEqual(prop.expressionString(),
'CASE WHEN @vector_tile_zoom > 0 AND @vector_tile_zoom <= 150 THEN scale_linear(@vector_tile_zoom,0,150,11,15) WHEN @vector_tile_zoom > 150 AND @vector_tile_zoom <= 250 THEN scale_linear(@vector_tile_zoom,150,250,15,22) WHEN @vector_tile_zoom > 250 THEN 22 END')
self.assertEqual(default_val, 11.0)
prop, default_val = QgsMapBoxGlStyleConverter.parseInterpolateByZoom({'base': 1,
'stops': [[0, 11],
[150, 15]]
}, conversion_context)
self.assertEqual(prop.expressionString(),
'scale_linear(@vector_tile_zoom,0,150,11,15)')
self.assertEqual(default_val, 11.0)
prop, default_val = QgsMapBoxGlStyleConverter.parseInterpolateByZoom({'base': 2,
'stops': [[0, 11],
[150, 15]]
}, conversion_context)
self.assertEqual(prop.expressionString(),
'scale_exp(@vector_tile_zoom,0,150,11,15,2)')
self.assertEqual(default_val, 11.0)
prop, default_val = QgsMapBoxGlStyleConverter.parseInterpolateByZoom({'base': 2,
'stops': [[0, 11],
[150, 15]]
}, conversion_context, multiplier=5)
self.assertEqual(prop.expressionString(),
'scale_exp(@vector_tile_zoom,0,150,11,15,2) * 5')
self.assertEqual(default_val, 55.0)
def testInterpolateByZoom(self):
conversion_context = QgsMapBoxGlStyleConversionContext()
prop, default_val = QgsMapBoxGlStyleConverter.parseInterpolateByZoom(
{
'base': 1,
'stops': [[0, 11], [150, 15], [250, 22]]
}, conversion_context)
self.assertEqual(
prop.expressionString(),
'CASE WHEN @zoom_level > 0 AND @zoom_level <= 150 THEN scale_linear(@zoom_level, 0, 150, 11, 15) WHEN @zoom_level > 150 AND @zoom_level <= 250 THEN scale_linear(@zoom_level, 150, 250, 15, 22) END'
)
self.assertEqual(default_val, 11.0)
prop, default_val = QgsMapBoxGlStyleConverter.parseInterpolateByZoom(
{
'base': 1,
'stops': [[0, 11], [150, 15]]
}, conversion_context)
self.assertEqual(prop.expressionString(),
'scale_linear(@zoom_level, 0, 150, 11, 15)')
self.assertEqual(default_val, 11.0)
prop, default_val = QgsMapBoxGlStyleConverter.parseInterpolateByZoom(
{
'base': 2,
'stops': [[0, 11], [150, 15]]
}, conversion_context)
self.assertEqual(prop.expressionString(),
'11 + 4 * (2^(@zoom_level-0)-1)/(2^(150-0)-1)')
self.assertEqual(default_val, 11.0)
prop, default_val = QgsMapBoxGlStyleConverter.parseInterpolateByZoom(
{
'base': 2,
'stops': [[0, 11], [150, 15]]
},
conversion_context,
multiplier=5)
self.assertEqual(prop.expressionString(),
'(11 + 4 * (2^(@zoom_level-0)-1)/(2^(150-0)-1)) * 5')
self.assertEqual(default_val, 55.0)