Rounding corners to ellipse shape

[Yithis]

Description

A new feature in fresco which allow a user to change shape of each corner into a quarter of ellipse with parameters (a width and a height of the quarter) described by a user.

Work plan:

• create a function to change a shape of the image into an ellipse with original width and height. Examples here and here,
• extend the function from previous point by custom width and height,
• create a new function to round each corner with custom width and height based on similar algorithm to one used in functions above.

Please let me know if you have any thoughts, comments or suggestions.

[stale[bot]]

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