Class FlexLine

bqplot/marks.py:431–499

Lines mark with the possibility to change the line width and color for each segment. !!! warning In the case of the FlexLines mark, scales for 'x' and 'y' **must** be provided. Scales for the color and width data attributes are optional. In the case where another data at

@register_mark('bqplot.FlexLine')
class FlexLine(Mark):

    """Lines mark with the possibility to change the line width and color for each segment.

    !!! warning
        In the case of the FlexLines mark, scales for 'x' and 'y' **must** be provided.
        Scales for the color and width data attributes are optional. In the case
        where another data attribute than 'x' or 'y' is provided but the
        corresponding scale is missing, the data attribute is ignored.

    Data Attributes
    ---------------

    Attributes
    ----------
    x: numpy.ndarray (default: [])
        abscissas of the data points (1d array)
    y: numpy.ndarray (default: [])
        ordinates of the data points (1d array)
    color: numpy.ndarray or None (default: None)
        Array controlling the color of the data points
    width: numpy.ndarray or None (default: None)
        Array controlling the widths of the Lines.

    Style Attributes
    ----------------

    Attributes
    ----------
    name: string (class-level attributes)
        user-friendly name of the mark
    colors: list of colors (default: CATEGORY10)
        List of colors for the Lines
    stroke_width: float (default: 1.5)
        Default stroke width of the Lines
    """
    # Mark decoration
    icon = 'fa-line-chart'
    name = 'Flexible lines'

    # Scaled attributes
    x = Array([]).tag(sync=True, scaled=True, rtype='Number',
                      atype='bqplot.Axis',
                      **array_serialization)\
        .valid(array_squeeze, array_dimension_bounds(1, 1))
    y = Array([]).tag(sync=True, scaled=True,
                      rtype='Number',
                      atype='bqplot.Axis',
                      **array_serialization)\
        .valid(array_squeeze, array_dimension_bounds(1, 1))
    color = Array(None, allow_none=True)\
        .tag(sync=True, scaled=True, rtype='Color',
             atype='bqplot.ColorAxis',
             **array_serialization).valid(array_squeeze)
    width = Array(None, allow_none=True)\
        .tag(sync=True, scaled=True, rtype='Number',
             **array_serialization).valid(array_squeeze)