In this chapter, we will discuss Bokeh – Styling Visual Attributes. The default appearance of a Bokeh plot can be customized by setting various properties to the desired value. These properties are mainly of three types −
Properties in Bokeh Styling Visual Attributes
Line properties
The following table lists various properties related to line glyph.
| 1 | line_color | color is used to stroke lines with |
| 2 | line_width | This is used in units of pixels as line stroke width |
| 3 | line_alpha | Between 0 (transparent) and 1 (opaque) this acts as a floating point |
| 4 | line_join | how to join together the path segments. Defined values are: ‘miter’ (miter_join), ’round’ (round_join), ‘bevel’ (bevel_join) |
| 5 | line_cap | how to terminate the path segments. Defined values are: ‘butt’ (butt_cap), ’round’ (round_cap), ‘square’ (square_cap) |
| 6 | line_dash | BThis is used for a line style. Defined values are: ‘solid’, ‘dashed’, ‘dotted’, ‘dotdash’, ‘dashdot’ |
| 7 | line_dash_offset | The distance into the line_dash in pixels that the pattern should start from |
Fill properties
Various fill properties are listed below −
| 1 | fill_color | This is used to fill paths with |
| 2 | fill_alpha | Between 0 (transparent) and 1 (opaque), this acts as a floating-point |
Text properties
There are many text related properties as listed in the following table −
| 1 | text_font | font name, e.g., ‘times’, ‘helvetica’ |
| 2 | text_font_size | font size in px, em, or pt, e.g., ’12pt’, ‘1.5em’ |
| 3 | text_font_style | font style to use ‘normal’ ‘italic’ ‘bold’ |
| 4 | text_color | This is used to render text with |
| 5 | text_alpha | Between 0 (transparent) and 1 (opaque), this is a floating point |
| 6 | text_align | horizontal anchor point for text – ‘left’, ‘right’, ‘center’ |
| 7 | text_baseline | vertical anchor point for text ‘top’, ‘middle’, ‘bottom’, ‘alphabetic’, ‘hanging’ |
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