Prototyping Python Dashboards for Scientists and Engineers by Unknown

Author:Unknown
Language: eng
Format: epub

Chapter 5 Our First DashbOarD

Figure 5-4. The atads_figures class initialization customizes the variable names used for the CSV data (self.names) and also defines the lists used for creating the self.var_dict used to map user-friendly (self.var_labels) and the more succinct forms (self.var_names) used internally.

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Chapter 5 Our First DashbOarD

Miscellaneous Variable Initialization

At the end of the __init__() function (see Figure 5-5), some useful variables are set, the variable name dictionary created, a list of unique airports built, and data for PHX (Phoenix Sky Harbor) read as a default.

Figure 5-5. The last part of the atads_figures class initialization sets some general variables and builds the self.var_dict dictionary, builds a list of available airports, and reads in PHX as the default airport.

Class Methods

The class methods, other than __init__(), naturally form into different groups based on their roles:

1. A set of utilities supporting data input and managing

the main internal data repository – the self.df

dataframe

2. The

update_mainchart() used to create the

graphical output

3. Utilities to draw line graphics

4. Utilities to support linear and quadratic polynomial

curve fitting

5. Utilities to enhance graphical output – titles,

watermarks, colors, etc.

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