Algorithm (Workflow)

This function, colorname, is designed to return a name for a color string or a list of color strings. It is part of the SolidGeometry library and was introduced in version 5.1. The function takes two input parameters and returns a string or a cell list of strings as output.

Input Parameters

• cs: This parameter represents the color input, which can be a single color string like 'r--' or a cell array of such strings, e.g., {'r--','b.-'}.
• num: This optional parameter specifies the length of the format. If set to 0, the length is determined automatically.

Output

• cname: The output is a string or a cell list of strings representing the color names corresponding to the input color strings.

Algorithm Details

The function begins by determining the value of num using the helper function getfuncparams. It then defines a lookup table, tab, which maps single-character color codes to their corresponding color names.

If cs is a scalar and numeric, it is converted to a color string using the colofn function.

If cs is a cell array, the function iterates over each element, recursively calling colorname for each color string. The results are stored in a cell array cname. The function then converts this cell array to a string using cell2str and updates cname with these string values.

If cs is not a cell array, the function checks if the first character of cs matches any entry in the first column of tab. If a match is found, cname is set to the corresponding color name from the second column of tab.

If num is specified and greater than 0, the function formats cname to the specified length using sprintf.

If no match is found in tab, cname is set to an empty array.

Example

Calling colorname({'b--','y'},3) will return a cell array with formatted color names for the input color strings.