15. Colors
Color classes are useful for the functions related to color in ccPointCloud class.
15.1. QColor (from Qt)
The QColor class is the binding of the Qcolor class from Qt.
- class cloudComPy.QColor
Bases:
pybind11_objectThe Qt QColor class provides colors based on RGB, HSV or CMYK values. See Qt documentation.
Constructors:
default Constructor: invalid Color.
copy Constructor
Constructs a color with the RGB value r, g, b, and the alpha-channel (transparency) value a.
- Parameters
r (int) – red value (0 to 255)
g (int) – green value (0 to 255)
b (int) – blue value (0 to 255)
a (int) – alpha value (0 to 255)
Constructs a color with the value color. The alpha component is ignored and set to solid.
- Parameters
rgb (int) – an unsigned int equivalent to an ARGB quadruplet on the format #AARRGGBB.
Construct a Color with the value rgba64 (
QRgba64).
- Parameters
rgba64 (QRgba64) – an rgba64 value.
Constructs a named color in the same way as
setNamedColor()using the given name.
The color is left invalid if the name cannot be parsed.
- Parameters
colorName (string) – the color name following the syntax in
setNamedColor().
- alpha(self: _cloudComPy.QColor) int
Returns the alpha color component of this color. See Qt documentation.
- Returns
alpha component int from [0..255]
- Return type
int
- alphaF(self: _cloudComPy.QColor) float
Returns the alpha color component of this color. See Qt documentation.
- Returns
alpha component float from range [0., 1.]
- Return type
float
- black(self: _cloudComPy.QColor) int
Returns the black color component of this color. See Qt documentation.
- Returns
black component int from [0..255]
- Return type
int
- blackF(self: _cloudComPy.QColor) float
Returns the black color component of this color. See Qt documentation.
- Returns
black component float from range [0., 1.]
- Return type
float
- blue(self: _cloudComPy.QColor) int
Returns the blue color component of this color. See Qt documentation.
- Returns
blue component int from [0..255]
- Return type
int
- blueF(self: _cloudComPy.QColor) float
Returns the blue color component of this color. See Qt documentation.
- Returns
blue component float from range [0., 1.]
- Return type
float
- static colorNames() List[QString]
Returns a list of strings containing the color names Qt knows about. Static function. See Qt documentation.
- Returns
list of Qt valid color names
- Return type
list
- convertTo(self: _cloudComPy.QColor, arg0: _cloudComPy.QColorSpec) _cloudComPy.QColor
Creates a copy of this color in the format specified by colorSpec.
See
QColorSpec- Parameters
spec (int) – color spec
- Returns
converted color
- Return type
- cyan(self: _cloudComPy.QColor) int
Returns the cyan color component of this color. See Qt documentation.
- Returns
cyan component int from [0..255]
- Return type
int
- cyanF(self: _cloudComPy.QColor) float
Returns the cyan color component of this color. See Qt documentation.
- Returns
cyan component float from range [0., 1.]
- Return type
float
- darker(self: _cloudComPy.QColor, factor: int = 200) _cloudComPy.QColor
Returns a darker (or lighter) color, but does not change this object.
If the factor is greater than 100, this functions returns a darker color. Setting factor to 300 returns a color that has one-third the brightness. If the factor is less than 100, the return color is lighter, but we recommend using the lighter() function for this purpose. If the factor is 0 or negative, the return value is unspecified.
The function converts the current RGB color to HSV, divides the value (V) component by factor and converts the color back to RGB. See Qt documentation.
- Parameters
factor (int,optional) – default value 200
- Returns
new color object
- Return type
- static fromCmyk(c: int, m: int, y: int, k: int, a: int = 255) _cloudComPy.QColor
Static convenience function that returns a QColor constructed from the given CMYK color values: c (cyan), m (magenta), y (yellow), k (black), and a (alpha-channel, i.e. transparency). All the values must be in the range 0-255. See Qt documentation.
- Parameters
c (int) – cyan
m (int) – magenta
y (int) – yellow
k (int) – black
a (int,optional) – alpha, default 255
- Returns
a CMYK QColor
- Return type
- static fromCmykF(c: float, m: float, y: float, k: float, a: float = 1.0) _cloudComPy.QColor
Static convenience function that returns a QColor constructed from the given CMYK color values: c (cyan), m (magenta), y (yellow), k (black), and a (alpha-channel, i.e. transparency). All the values must be in the range [0., 1.]. See Qt documentation.
- Parameters
c (float) – cyan
m (float) – magenta
y (float) – yellow
k (float) – black
a (float,optional) – alpha, default 1.
- Returns
a CMYK QColor
- Return type
- static fromHsl(h: int, s: int, l: int, a: int = 255) _cloudComPy.QColor
Static convenience function that returns a QColor constructed from the HSL color values: h (hue), s (saturation), l (lightness), and a (alpha-channel, i.e. transparency). The value of s, l, and a must all be in the range 0-255; the value of h must be in the range 0-359. See Qt documentation.
- Parameters
h (int) – hue
s (int) – saturation
l (int) – lightness
a (int,optional) – alpha, default 255
- Returns
an HSL QColor
- Return type
- static fromHslF(h: float, s: float, l: float, a: float = 1.0) _cloudComPy.QColor
Static convenience function that returns a QColor constructed from the HSL color values: h (hue), s (saturation), l (lightness), and a (alpha-channel, i.e. transparency). All the values must be in the range 0.0-1.0. See Qt documentation.
- Parameters
h (float) – hue
s (float) – saturation
l (float) – lightness
a (float,optional) – alpha, default 1.
- Returns
an HSL QColor
- Return type
- static fromHsv(h: int, s: int, v: int, a: int = 255) _cloudComPy.QColor
Static convenience function that returns a QColor constructed from the HSV color values: h (hue), s (saturation), v (value), and a (alpha-channel, i.e. transparency). The value of s, v, and a must all be in the range 0-255; the value of h must be in the range 0-359. See Qt documentation.
- Parameters
h (int) – hue
s (int) – saturation
v (int) – value
a (int,optional) – alpha, default 255
- Returns
an HSV QColor
- Return type
- static fromHsvF(h: float, s: float, v: float, a: float = 1.0) _cloudComPy.QColor
Static convenience function that returns a QColor constructed from the HSV color values: h (hue), s (saturation), v (value), and a (alpha-channel, i.e. transparency). All the values must be in the range 0.0-1.0. See Qt documentation.
- Parameters
h (float) – hue
s (float) – saturation
v (float) – value
a (float,optional) – alpha, default 255
- Returns
an HSV QColor
- Return type
- QColor.fromRgb(r: int, g: int, g: int, a: int = 255) -> _cloudComPy.QColor
Static convenience function that returns a QColor constructed from the RGB color values, r (red), g (green), b (blue), and a (alpha-channel, i.e. transparency). All the values must be in the range 0-255. See Qt documentation.
- Parameters
r (int) – red
g (int) – green
b (int) – blue
a (int,optional) – alpha, default 255
- Returns
an RGB QColor
- Return type
- static fromRgbF(r: float, g: float, b: float, a: float = 1.0) _cloudComPy.QColor
Static convenience function that returns a QColor constructed from the RGB color values, r (red), g (green), b (blue), and a (alpha-channel, i.e. transparency). All the values must be in the range 0.0-1.0. See Qt documentation.
- Parameters
r (float) – red
g (float) – green
b (float) – blue
a (float,optional) – alpha, default 1.0
- Returns
an RGB QColor
- Return type
- static fromRgbUInt(arg0: int) _cloudComPy.QColor
Static convenience function that returns a QColor constructed from the given unsigned integer value rgb (ARGB quadruplet on the format #AARRGGBB). The alpha component of rgb is ignored (i.e. it is automatically set to 255), use the
fromRgba()function to include the alpha-channel specified by the given QRgb value. See Qt documentation.- Parameters
rgb (int) – ARGB quadruplet on the format #AARRGGBB).
- Returns
an RGB QColor
- Return type
- static fromRgba(arg0: int) _cloudComPy.QColor
Static convenience function that returns a QColor constructed from the given unsigned integer value rgb (ARGB quadruplet on the format #AARRGGBB). Unlike the
fromRgbUInt()function, the alpha-channel specified by the given QRgb value is included. See Qt documentation.- Parameters
rgb (int) – ARGB quadruplet on the format #AARRGGBB).
- Returns
an RGB QColor
- Return type
- QColor.fromRgba64(r: int, g: int, g: int, a: int = 65535) -> _cloudComPy.QColor
Static convenience function that returns a QColor constructed from the RGBA64 color values, r (red), g (green), b (blue), and a (alpha-channel, i.e. transparency). All values: unsigned short = 16bit range 0..65535 See Qt documentation.
- Parameters
r (int) – red
g (int) – green
b (int) – blue
a (int,optional) – alpha, default 65535
- Returns
an RGB QColor
- Return type
- static fromRgba64Q(arg0: _cloudComPy.QRgba64) _cloudComPy.QColor
Static convenience function that returns a QColor constructed from the given
QRgba64value rgba64. See Qt documentation.
- getCmyk(self: _cloudComPy.QColor) List[int]
Get the cyan, magenta, yellow, black, and alpha-channel (transparency) components of the color’s CMYK value. See Qt documentation.
- Returns
a tuple (c, m, y, k, a), int values from [0..255]
- Return type
tuple
- getCmykF(self: _cloudComPy.QColor) List[float]
Get the cyan, magenta, yellow, black, and alpha-channel (transparency) components of the color’s CMYK value. See Qt documentation.
- Returns
a tuple (c, m, y, k, a), float values from [0., 1.]
- Return type
tuple
- getHsl(self: _cloudComPy.QColor) List[int]
Get the hue, saturation, lightness and alpha-channel (transparency) components of the color’s HSL value. See Qt documentation.
- Returns
a tuple (h, s, l, a), int values from [-1..359] for hue, [0..255] for saturation, lightness and alpha-channel
- Return type
tuple
- getHslF(self: _cloudComPy.QColor) List[float]
Get the hue, saturation, lightness and alpha-channel (transparency) components of the color’s HSL value. See Qt documentation.
- Returns
a tuple (h, s, l, a), float values from [0., 1.]
- Return type
tuple
- getHsv(self: _cloudComPy.QColor) List[int]
Get the hue, saturation, value and alpha-channel (transparency) components of the color’s HSL value. See Qt documentation.
- Returns
a tuple (h, s, v, a), int values from [-1..359] for hue, [0..255] for saturation, lightness and alpha-channel
- Return type
tuple
- getHsvF(self: _cloudComPy.QColor) List[float]
Get the hue, saturation, value and alpha-channel (transparency) components of the color’s HSL value. See Qt documentation.
- Returns
a tuple (h, s, v, a), float values from [0., 1.]
- Return type
tuple
- getRgb(self: _cloudComPy.QColor) List[int]
Get the the red, green, blue, and alpha-channel (transparency) components of the color’s RGB value. See Qt documentation.
- Returns
a tuple (r, g, b, a), int values from [0..255]
- Return type
tuple
- getRgbF(self: _cloudComPy.QColor) List[float]
Get the the red, green, blue, and alpha-channel (transparency) components of the color’s RGB value. See Qt documentation.
- Returns
a tuple (r, g, b, a), float values from [0., 1.]
- Return type
tuple
- green(self: _cloudComPy.QColor) int
Returns the green color component of this color. See Qt documentation.
- Returns
green component int from [0..255]
- Return type
int
- greenF(self: _cloudComPy.QColor) float
Returns the green color component of this color. See Qt documentation.
- Returns
green component float from range [0., 1.]
- Return type
float
- hslHue(self: _cloudComPy.QColor) int
Returns the HSL hue color component of this color. (-1 means achromatic) See Qt documentation.
- Returns
the HSL hue color component of this color, value from [-1..359]
- Return type
int
- hslHueF(self: _cloudComPy.QColor) float
Returns the HSL hue color component of this color. See Qt documentation.
- Returns
the HSL hue color component of this color, value from [0., 1.]
- Return type
float
- hslSaturation(self: _cloudComPy.QColor) int
Returns the HSL saturation color component of this color. See Qt documentation.
- Returns
the HSL saturation color component of this color, value from [0..255]
- Return type
int
- hslSaturationF(self: _cloudComPy.QColor) float
Returns the HSL saturation color component of this color. See Qt documentation.
- Returns
the HSL saturation color component of this color, value from [0., 1.]
- Return type
float
- hsvHue(self: _cloudComPy.QColor) int
Returns the hsv hue color component of this color. (-1 means achromatic) See Qt documentation.
- Returns
the hsv hue color component of this color, value from [-1..359]
- Return type
int
- hsvHueF(self: _cloudComPy.QColor) float
Returns the hsv hue color component of this color. See Qt documentation.
- Returns
the hsv hue color component of this color, value from [0., 1.]
- Return type
float
- hsvSaturation(self: _cloudComPy.QColor) int
Returns the hsv saturation color component of this color. See Qt documentation.
- Returns
the hsv saturation color component of this color, value from [0..255]
- Return type
int
- hsvSaturationF(self: _cloudComPy.QColor) float
Returns the hsv saturation color component of this color. See Qt documentation.
- Returns
the hsv saturation color component of this color, value from [0., 1.]
- Return type
float
- hue(self: _cloudComPy.QColor) int
Returns the HSV hue color component of this color. (-1 means achromatic)
The color is implicitly converted to HSV. See Qt documentation.
- Returns
the hsv hue color component of this color, value from [-1..359]
- Return type
int
- hueF(self: _cloudComPy.QColor) float
Returns the HSV hue color component of this color.
The color is implicitly converted to HSV. See Qt documentation.
- Returns
the hsv hue color component of this color, value from [0., 1.]
- Return type
float
- isValid(self: _cloudComPy.QColor) bool
Returns True if the color is valid; otherwise returns False. See Qt documentation.
- Returns
True if the color is valid.
- Return type
bool
- static isValidColor(arg0: QString) bool
Returns True if the name is a valid color name and can be used to construct a valid QColor object, otherwise returns false.
It uses the same algorithm used in
setNamedColor(). See Qt documentation.- Returns
True if the color name is valid.
- Return type
bool
- lighter(self: _cloudComPy.QColor, factor: int = 150) _cloudComPy.QColor
Returns a lighter (or darker) color, but does not change this object.
If the factor is greater than 100, this functions returns a lighter color. Setting factor to 150 returns a color that is 50% brighter. If the factor is less than 100, the return color is darker, but we recommend using the darker() function for this purpose. If the factor is 0 or negative, the return value is unspecified.
The function converts the current RGB color to HSV, multiplies the value (V) component by factor and converts the color back to RGB. See Qt documentation.
- Parameters
factor (int,optional) – default value 150
- Returns
new color object
- Return type
- lightness(self: _cloudComPy.QColor) int
Returns the lightness color component of this color. See Qt documentation.
- Returns
lightness in [0..255]
- Return type
int
- lightnessF(self: _cloudComPy.QColor) float
Returns the lightness color component of this color. See Qt documentation.
- Returns
lightness in [0., 1.]
- Return type
float
- magenta(self: _cloudComPy.QColor) int
Returns the magenta color component of this color. See Qt documentation.
- Returns
magenta component int from [0..255]
- Return type
int
- magentaF(self: _cloudComPy.QColor) float
Returns the magenta color component of this color. See Qt documentation.
- Returns
magenta component float from range [0., 1.]
- Return type
float
- name(self: _cloudComPy.QColor) QString
Returns the name of the color in the format “#RRGGBB”; i.e. a “#” character followed by three two-digit hexadecimal numbers. See Qt documentation.
- Returns
name of the color in the format “#RRGGBB”.
- Return type
string
- nameARGB(self: _cloudComPy.QColor) QString
Returns the name of the color in the format “#AARRGGBB”; i.e. a “#” character followed by four two-digit hexadecimal numbers. See Qt documentation.
- Returns
name of the color in the format “#AARRGGBB”.
- Return type
string
- red(self: _cloudComPy.QColor) int
Returns the red color component of this color. See Qt documentation.
- Returns
red component int from [0..255]
- Return type
int
- redF(self: _cloudComPy.QColor) float
Returns the red color component of this color. See Qt documentation.
- Returns
red component float from range [0., 1.]
- Return type
float
- rgb(self: _cloudComPy.QColor) int
Returns the RGB value of the color. The alpha value is opaque. See Qt documentation.
- Returns
rgb value (unsigned int equivalent to an ARGB quadruplet on the format #AARRGGBB)
- Return type
int
- rgba(self: _cloudComPy.QColor) int
Returns the RGB value of the color, including its alpha.
unsigned int equivalent to an ARGB quadruplet on the format #AARRGGBB rgb = blue + green*256 + red*256**2 + alpha*256**3 (blue, green, red, alpha: unsigned char) For an invalid color, the alpha value of the returned color is unspecified. See Qt documentation.
- Returns
rgb value (unsigned int equivalent to an ARGB quadruplet on the format #AARRGGBB)
- Return type
int
- rgba64(self: _cloudComPy.QColor) _cloudComPy.QRgba64
Returns the RGB64 value of the color, including its alpha.
For an invalid color, the alpha value of the returned color is unspecified. See Qt documentation.
- Returns
QRgba64 value
- Return type
- saturation(self: _cloudComPy.QColor) int
Returns the HSV saturation color component of this color.
The color is implicitly converted to HSV. See Qt documentation.
- Returns
saturation in [0..255]
- Return type
int
- saturationF(self: _cloudComPy.QColor) float
Returns the HSV saturation color component of this color.
The color is implicitly converted to HSV. See Qt documentation.
- Returns
saturation in [0., 1.]
- Return type
float
- setAlpha(self: _cloudComPy.QColor, arg0: int) None
Sets the alpha of this color to alpha. Integer alpha is specified in the range 0-255. See Qt documentation.
- Parameters
alpha (int) – alpha is specified in the range 0-255.
- setAlphaF(self: _cloudComPy.QColor, arg0: float) None
Sets the alpha of this color to alpha. float alpha is specified in the range [0., 1.] See Qt documentation.
- Parameters
alpha (float) – alpha is specified in the range [0., 1.].
- setBlue(self: _cloudComPy.QColor, arg0: int) None
Sets the Blue of this color to Blue. Integer Blue is specified in the range 0-255. See Qt documentation.
- Parameters
Blue (int) – Blue is specified in the range 0-255.
- setBlueF(self: _cloudComPy.QColor, arg0: float) None
Sets the Blue of this color to Blue. float Blue is specified in the range [0., 1.] See Qt documentation.
- Parameters
Blue (float) – Blue is specified in the range [0., 1.].
- setCmyk(self: _cloudComPy.QColor, c: int, m: int, y: int, k: int, a: int = 255) None
Sets the cyan, magenta, yellow, black, and alpha-channel (transparency) components of the color’s CMYK value.
These components can be retrieved individually using the
cyan(), py:meth:magenta, py:meth:yellow, py:meth:black and py:meth:alpha functions. See Qt documentation.- Parameters
c (int) – cyan value (0 to 255)
m (int) – magenta value (0 to 255)
y (int) – yellow value (0 to 255)
k (int) – black value (0 to 255)
a (int,optional) – alpha value (0 to 255), default 255
- setCmykF(self: _cloudComPy.QColor, c: float, m: float, y: float, k: float, a: float = 1.0) None
Sets the cyan, magenta, yellow, black, and alpha-channel (transparency) components of the color’s CMYK value.
These components can be retrieved individually using the
cyan(), py:meth:magenta, py:meth:yellow, py:meth:black and py:meth:alpha functions. See Qt documentation.- Parameters
c (float) – cyan value from [0., 1.]
m (float) – magenta value from [0., 1.]
y (float) – yellow value from [0., 1.]
k (float) – black value from [0., 1.]
a (float,optional) – alpha value from [0., 1.] default 1.
- setGreen(self: _cloudComPy.QColor, arg0: int) None
Sets the Green of this color to Green. Integer Green is specified in the range 0-255. See Qt documentation.
- Parameters
Green (int) – Green is specified in the range 0-255.
- setGreenF(self: _cloudComPy.QColor, arg0: float) None
Sets the Green of this color to Green. float Green is specified in the range [0., 1.] See Qt documentation.
- Parameters
Green (float) – Green is specified in the range [0., 1.].
- setHsl(self: _cloudComPy.QColor, h: int, s: int, l: int, a: int = 255) None
Sets a HSL color value; h is the hue, s is the saturation, l is the lightness and a is the alpha component of the HSL color.
The saturation, lightness and alpha-channel values must be in the range 0-255, and the hue value must be greater than -1. [0..359] See Qt documentation.
- Parameters
h (int) – hue
s (int) – saturation
l (int) – lightness
a (int,optional) – alpha, default value 255
- setHslF(self: _cloudComPy.QColor, h: float, s: float, l: float, a: float = 1.0) None
Sets a HSL color value; h is the hue, s is the saturation, l is the lightness and a is the alpha component of the HSL color.
All the values must be in the range 0.0-1.0. See Qt documentation.
- Parameters
h (int) – hue
s (int) – saturation
l (int) – lightness
a (int,optional) – alpha, default value 1.0
- setHsv(self: _cloudComPy.QColor, h: int, s: int, v: int, a: int = 255) None
Sets a HSV color value; h is the hue, s is the saturation, v is the value and a is the alpha component of the HSV color.
The saturation, value and alpha-channel values must be in the range 0-255, and the hue value must be greater than -1. [0..359] See Qt documentation.
- Parameters
h (int) – hue
s (int) – saturation
v (int) – value
a (int,optional) – alpha, default value 255
- setHsvF(self: _cloudComPy.QColor, h: float, s: float, v: float, a: float = 1.0) None
Sets a HSV color value; h is the hue, s is the saturation, v is the value and a is the alpha component of the HSV color.
All the values must be in the range 0.0-1.0. See Qt documentation.
- Parameters
h (int) – hue
s (int) – saturation
v (int) – value
a (int,optional) – alpha, default value 1.0
- setNamedColor(self: _cloudComPy.QColor, arg0: QString) None
Sets the RGB value of this QColor to name, which may be in one of these formats:
#RGB (each of R, G, and B is a single hex digit)
#RRGGBB
#AARRGGBB (Since 5.2)
#RRRGGGBBB
#RRRRGGGGBBBB
A name from the list of colors defined in the list of SVG color keyword names provided by the World Wide Web Consortium; for example, “steelblue” or “gainsboro”. These color names work on all platforms.
transparent - representing the absence of a color.
The color is invalid if name cannot be parsed. See Qt documentation.
- Parameters
colorName (string) – color name. see
colorNames()for a list of valid keyword names
- setRed(self: _cloudComPy.QColor, arg0: int) None
Sets the Red of this color to Red. Integer Red is specified in the range 0-255. See Qt documentation.
- Parameters
Red (int) – Red is specified in the range 0-255.
- setRedF(self: _cloudComPy.QColor, arg0: float) None
Sets the Red of this color to Red. float Red is specified in the range [0., 1.] See Qt documentation.
- Parameters
Red (float) – Green is specified in the range [0., 1.].
- setRgb(self: _cloudComPy.QColor, r: int, g: int, b: int, a: int = 255) None
Sets the RGB value to r, g, b and the alpha value to a.
All the values must be in the range 0-255. See Qt documentation.
- Parameters
r (int) – red
g (int) – green
b (int) – blue
a (int,optional) – alpha
- QColor.setRgbF(self: _cloudComPy.QColor, r: float, g: float, g: float, a: float = 1.0) -> None
Sets the color channels of this color to r (red), g (green), b (blue) and a (alpha, transparency).
All values must be in the range 0.0-1.0. See Qt documentation.
- Parameters
r (float) – red
g (float) – green
b (float) – blue
a (float,optional) – alpha
- setRgbUInt(self: _cloudComPy.QColor, arg0: int) None
Sets the RGB value to rgb (unsigned integer color code). The alpha value is set to opaque. See Qt documentation.
- Parameters
rgb (int) – unsigned integer color code (ARGB quadruplet on the format #AARRGGBB)
- setRgba64(self: _cloudComPy.QColor, arg0: _cloudComPy.QRgba64) None
Sets the RGB64 value to rgba, including its alpha. See Qt documentation.
- Parameters
rgba (QRgba64) – 64-bit RGB color structure
- spec(self: _cloudComPy.QColor) _cloudComPy.QColorSpec
Returns how the color was specified.
See Qt documentation.
- Returns
spec value
- Return type
- toCmyk(self: _cloudComPy.QColor) _cloudComPy.QColor
Creates and returns a CMYK QColor based on this color. See Qt documentation.
- Returns
a CMYK QColor based on this color.
- Return type
- toHsl(self: _cloudComPy.QColor) _cloudComPy.QColor
Creates and returns an HSL QColor based on this color. See Qt documentation.
- Returns
an HSL QColor based on this color.
- Return type
- toHsv(self: _cloudComPy.QColor) _cloudComPy.QColor
Creates and returns an HSV QColor based on this color. See Qt documentation.
- Returns
an HSV QColor based on this color.
- Return type
- toRgb(self: _cloudComPy.QColor) _cloudComPy.QColor
Creates and returns an RGB QColor based on this color. See Qt documentation.
- Returns
an RGB QColor based on this color.
- Return type
- value(self: _cloudComPy.QColor) int
Returns the value color component of this color. See Qt documentation.
- Returns
value color component [0..255]
- Return type
int
- valueF(self: _cloudComPy.QColor) float
Returns the value color component of this color. See Qt documentation.
- Returns
value color component [0., 1.]
- Return type
float
- yellow(self: _cloudComPy.QColor) int
Returns the yellow color component of this color. See Qt documentation.
- Returns
yellow color component [0..255]
- Return type
int
- yellowF(self: _cloudComPy.QColor) float
Returns the yellow color component of this color. See Qt documentation.
- Returns
yellow color component [0., 1.]
- Return type
float
15.2. Other Useful Color classes (from Qt)
The QRgba64 class from Qt provide a 64bit data structure to manipulate 16-bit color channels: Red, green, blue and alpha.
- class cloudComPy.QRgba64
Bases:
pybind11_objectThe QRgba64 struct contains a 64-bit RGB color.
QRgba64 is a 64-bit data-structure containing four 16-bit color channels: Red, green, blue and alpha. QRgba64 can be used as a replacement for QRgb when higher precision is needed. In particular a premultiplied QRgba64 can operate on unpremultiplied QRgb without loss of precision except for alpha 0. See Qt documentation.
- alpha(self: _cloudComPy.QRgba64) int
Returns the 16-bit alpha channel. See Qt documentation.
- Returns
alpha 16 bits
- Return type
int)
- alpha8(self: _cloudComPy.QRgba64) int
Returns the alpha channel as an 8-bit. See Qt documentation.
- Returns
alpha 8 bits
- Return type
int
- blue(self: _cloudComPy.QRgba64) int
Returns the 16-bit blue color component. See Qt documentation.
- Returns
blue 16 bits
- Return type
int
- blue8(self: _cloudComPy.QRgba64) int
Returns the blue color component as an 8-bit. See Qt documentation.
- Returns
blue 8 bits
- Return type
int
- static fromArgb32(arg0: int) _cloudComPy.QRgba64
Constructs a QRgba64 value from the 32bit ARGB value rgb. See Qt documentation.
- Parameters
rgb (int) – 32bit ARGB value
- Returns
color.
- Return type
- fromQuint64(self: _cloudComPy.QRgba64, arg0: int) _cloudComPy.QRgba64
Return the color from a 64bit unsigned integer RGBA. See Qt documentation.
- Parameters
rgba (int) – a 64bit unsigned integer RGBA.
- Returns
color.
- Return type
- static fromRgba(arg0: int, arg1: int, arg2: int, arg3: int) _cloudComPy.QRgba64
Constructs a QRgba64 value from the four 8-bit color channels red, green, blue and alpha. See Qt documentation.
- Parameters
red (int) – 8bit red value.
green (int) – 8bit green value.
blue (int) – 8bit blue value.
alpha (int) – 8bit alpha value.
- Returns
color.
- Return type
- static fromRgba64(arg0: int, arg1: int, arg2: int, arg3: int) _cloudComPy.QRgba64
Constructs a QRgba64 value from the four 16-bit color channels red, green, blue and alpha. See Qt documentation.
- Parameters
red (int) – 16bit red value.
green (int) – 16bit green value.
blue (int) – 16bit blue value.
alpha (int) – 16bit alpha value.
- Returns
color.
- Return type
- static fromRgba64Q(arg0: int) _cloudComPy.QRgba64
Constructs a QRgba64 value from a 64bit unsigned integer RGBA. See Qt documentation.
- Parameters
rgba (int) – a 64bit unsigned integer RGBA.
- Returns
color.
- Return type
- green(self: _cloudComPy.QRgba64) int
Returns the 16-bit green color component. See Qt documentation.
- Returns
green 16 bits
- Return type
int
- green8(self: _cloudComPy.QRgba64) int
Returns the green color component as an 8-bit. See Qt documentation.
- Returns
green 8 bits
- Return type
int
- isOpaque(self: _cloudComPy.QRgba64) bool
Returns whether the color is fully opaque. See Qt documentation.
- Returns
True if the color is fully opaque.
- Return type
bool
- isTransparent(self: _cloudComPy.QRgba64) bool
Returns whether the color is transparent. See Qt documentation.
- Returns
True if the color is transparent.
- Return type
bool
- premultiplied(self: _cloudComPy.QRgba64) _cloudComPy.QRgba64
Returns the color with the alpha premultiplied. See Qt documentation.
- Returns
color premultiplied.
- Return type
- red(self: _cloudComPy.QRgba64) int
Returns the 16-bit red color component. See Qt documentation.
- Returns
red 16 bits
- Return type
int
- red8(self: _cloudComPy.QRgba64) int
Returns the red color component as an 8-bit. See Qt documentation.
- Returns
red 8 bits
- Return type
int
- setAlpha(self: _cloudComPy.QRgba64, arg0: int) None
Sets the alpha of this color to alpha. See Qt documentation.
- Parameters
alpha (int) – alpha value.
- setBlue(self: _cloudComPy.QRgba64, arg0: int) None
Sets the blue color component of this color to blue. See Qt documentation.
- Parameters
blue (int) – blue value.
- setGreen(self: _cloudComPy.QRgba64, arg0: int) None
Sets the green color component of this color to green. See Qt documentation.
- Parameters
green (int) – green value.
- setRed(self: _cloudComPy.QRgba64, arg0: int) None
Sets the red color component of this color to red. See Qt documentation.
- Parameters
red (int) – red value.
- toArgb32(self: _cloudComPy.QRgba64) int
Returns the color as a 32-bit ARGB value. See Qt documentation.
- Returns
32 bits ARGB color
- Return type
int
- toQuint64(self: _cloudComPy.QRgba64) int
Returns the color as a 64bit unsigned integer RGBA. See Qt documentation.
- Returns
64bit unsigned integer RGBA.
- Return type
int
- toRgb16(self: _cloudComPy.QRgba64) int
Returns the color as a 16-bit RGB value. See Qt documentation.
- Returns
16 bits RGB color
- Return type
int
- unpremultiplied(self: _cloudComPy.QRgba64) _cloudComPy.QRgba64
Returns the color with the alpha unpremultiplied. See Qt documentation.
- Returns
color unpremultiplied.
- Return type
- class cloudComPy.QColorSpec
The type of color specified, either RGB, HSV, CMYK or HSL. See Qt documentation.
Members:
Invalid
Rgb
Hsv
Cmyk
Hsl
- Cmyk = <QColorSpec.Cmyk: 3>
- Hsl = <QColorSpec.Hsl: 4>
- Hsv = <QColorSpec.Hsv: 2>
- Invalid = <QColorSpec.Invalid: 0>
- Rgb = <QColorSpec.Rgb: 1>
- property name
- property value