本文整理汇总了Python中qgis.core.QgsSymbolLayerV2Utils.decodeColor方法的典型用法代码示例。如果您正苦于以下问题：Python QgsSymbolLayerV2Utils.decodeColor方法的具体用法？Python QgsSymbolLayerV2Utils.decodeColor怎么用？Python QgsSymbolLayerV2Utils.decodeColor使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类qgis.core.QgsSymbolLayerV2Utils的用法示例。
在下文中一共展示了QgsSymbolLayerV2Utils.decodeColor方法的8个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: blue
# 需要导入模块: from qgis.core import QgsSymbolLayerV2Utils [as 别名]
# 或者: from qgis.core.QgsSymbolLayerV2Utils import decodeColor [as 别名]
def blue(values, feature, parent):
"""
Returns the blue component of a color
<p><h4>Syntax</h4>
blue(<i>color</i>)</p>
<p><h4>Arguments</h4>
<i> color</i> → a color<br></p>
<p><h4>Example</h4>
<!-- Show example of function.-->
blue('0,0,255') → 255</p>
"""
try:
return QgsSymbolLayerV2Utils.decodeColor(values[0]).blue()
except:
return None示例2: alpha
# 需要导入模块: from qgis.core import QgsSymbolLayerV2Utils [as 别名]
# 或者: from qgis.core.QgsSymbolLayerV2Utils import decodeColor [as 别名]
def alpha(values, feature, parent):
"""
Returns the alpha component of a color
<p><h4>Syntax</h4>
alpha(<i>color</i>)</p>
<p><h4>Arguments</h4>
<i> color</i> → a color<br></p>
<p><h4>Example</h4>
<!-- Show example of function.-->
alpha('255,255,255,125') → 125</p>
"""
try:
return QgsSymbolLayerV2Utils.decodeColor(values[0]).alpha()
except:
return None示例3: hsv_value
# 需要导入模块: from qgis.core import QgsSymbolLayerV2Utils [as 别名]
# 或者: from qgis.core.QgsSymbolLayerV2Utils import decodeColor [as 别名]
def hsv_value(values, feature, parent):
"""
Returns the hsv value component of a color, an integer between 0-100
<p><h4>Syntax</h4>
hsv_value(<i>color</i>)</p>
<p><h4>Arguments</h4>
<i> color</i> → a color<br></p>
<p><h4>Example</h4>
<!-- Show example of function.-->
hsv_value('125,255,125') → 100</p>
"""
try:
# Value ranges from 0 - 100
return int(QgsSymbolLayerV2Utils.decodeColor(values[0]).valueF() * 100)
except:
return None示例4: lightness
# 需要导入模块: from qgis.core import QgsSymbolLayerV2Utils [as 别名]
# 或者: from qgis.core.QgsSymbolLayerV2Utils import decodeColor [as 别名]
def lightness(values, feature, parent):
"""
Returns the lightness of a color, an integer between 0-100
<p><h4>Syntax</h4>
lightness(<i>color</i>)</p>
<p><h4>Arguments</h4>
<i> color</i> → a color<br></p>
<p><h4>Example</h4>
<!-- Show example of function.-->
lightness('125,255,125') → 74</p>
"""
try:
# Lightness ranges from 0 - 100
return int(QgsSymbolLayerV2Utils.decodeColor(values[0]).lightnessF() * 100)
except:
return None示例5: saturation
# 需要导入模块: from qgis.core import QgsSymbolLayerV2Utils [as 别名]
# 或者: from qgis.core.QgsSymbolLayerV2Utils import decodeColor [as 别名]
def saturation(values, feature, parent):
"""
Returns the saturation of a color, an integer between 0-100
<p><h4>Syntax</h4>
saturation(<i>color</i>)</p>
<p><h4>Arguments</h4>
<i> color</i> → a color<br></p>
<p><h4>Example</h4>
<!-- Show example of function.-->
saturation('125,255,125') → 50</p>
"""
try:
# Saturation ranges from 0 - 100
return int(QgsSymbolLayerV2Utils.decodeColor(values[0]).saturationF() * 100)
except:
return None示例6: set_alpha
# 需要导入模块: from qgis.core import QgsSymbolLayerV2Utils [as 别名]
# 或者: from qgis.core.QgsSymbolLayerV2Utils import decodeColor [as 别名]
def set_alpha(values, feature, parent):
"""
Sets the alpha component of a color
<p><h4>Syntax</h4>
set_alpha(<i>color</i>, <i>alpha</i>)</p>
<p><h4>Arguments</h4>
<i> color</i> → a color<br>
<i> alpha</i> → an alpha value between 0 and 255<br></p>
<p><h4>Example</h4>
<!-- Show example of function.-->
set_alpha('255,255,255,255', 125) → '255,255,255,125'</p>
"""
try:
color = QgsSymbolLayerV2Utils.decodeColor(values[0])
color.setAlpha(values[1])
return QgsSymbolLayerV2Utils.encodeColor(color)
except:
return None示例7: set_hsv_value
# 需要导入模块: from qgis.core import QgsSymbolLayerV2Utils [as 别名]
# 或者: from qgis.core.QgsSymbolLayerV2Utils import decodeColor [as 别名]
def set_hsv_value(values, feature, parent):
"""
Sets the value of a color
<p><h4>Syntax</h4>
set_hsv_value(<i>color</i>, <i>value</i>)</p>
<p><h4>Arguments</h4>
<i> color</i> → a color<br>
<i> value</i> → a integer between 0 and 100<br></p>
<p><h4>Example</h4>
<!-- Show example of function.-->
set_hsv_value('0,255,0,255', 50) → '0,128,0,255'</p>
"""
try:
color = QgsSymbolLayerV2Utils.decodeColor(values[0])
color.setHsvF(color.hueF(), color.saturationF(), values[1] / 100.0, color.alphaF())
return QgsSymbolLayerV2Utils.encodeColor(color)
except:
return None示例8: set_hue
# 需要导入模块: from qgis.core import QgsSymbolLayerV2Utils [as 别名]
# 或者: from qgis.core.QgsSymbolLayerV2Utils import decodeColor [as 别名]
def set_hue(values, feature, parent):
"""
Sets the hue component of a color
<p><h4>Syntax</h4>
set_hue(<i>color</i>, <i>hue</i>)</p>
<p><h4>Arguments</h4>
<i> color</i> → a color<br>
<i> hue</i> → a integer between 0 and 360<br></p>
<p><h4>Example</h4>
<!-- Show example of function.-->
set_hue('0,255,0,255', 0) → '255,0,0,255'</p>
"""
try:
color = QgsSymbolLayerV2Utils.decodeColor(values[0])
color.setHslF(values[1] / 360.0, color.saturationF(), color.lightnessF(), color.alphaF())
return QgsSymbolLayerV2Utils.encodeColor(color)
except:
return None