Returns true if the rectangle is empty (width or height are zero)
radii value is like css border-radius, an array of 1-4 "point-like" objects ({x,y}) starting at top left corner, etc.
Empty array for no radius. Values can be in either percent of overall size (like CSS border-radius %) or in absolute pixels,
depending on the radiusIsRelative property. Radius values cannot be negative.
See radii param at https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/roundRect#syntax
The radii can be set using an array of 1-4 numbers or PointType {x,y} objects, or a single numeric value (for all 4 corners).
Alignment value as two string values, first for vertical and second for horizontal. Eg. "top left" or "center middle". Setting the property can be done with either a single direction or both (separated by space or comma) in either order.
Horizontal alignment value as string. One of: 'left', 'center', 'right'
Vertical alignment value as string. One of: 'top', 'middle', 'bottom'
Optionalinit: RectanglePathInitClears the generated & cached Path2D object (if any). Some Path subclasses my not use the cache.
Typically the cache management is handled automatically when relevant properties are modified.
Sets element width and height property values with optional unit type specifier to use for both dimensions.
If unit is undefined then the current unit types for each dimension remain unchanged.
Optionalunit: stringOptionalunitY: stringReturns actual pixel width of this element, either scaled to viewWidth if width unit is %
or actual width value if it is in pixels already. If this element's width value is zero then return viewWidth.
Returns actual pixel height of this element, either scaled to viewHeight if height unit is %
or actual height value if it is in pixels already. If this element's height value is zero then return viewHeight.
Returns actual pixel width and height of this element, potentially scaled to viewSize.
See actualWidth and actualHeight for details on returned values.
StaticcleanValidates the value types in given array and that none of the values are < 0;
Turns all single numeric values into {x,y} PointType objects. Modifies the input array if needed.
Any array members which are neither numeric nor {x,y} objects are replaced with a zero value.
Boolean operation to perform with previous path, if any.
May be used by subclasses in their IPathProducer#getPath method to automatically combine with other paths.
Readonlylayertrue if radius values in radii array are given in percentages, or false if they represent absolute pixels. Default is true.
A zero width/height (default) indicates to draw into the full available image area (eg. passed to render() in rect argument). Negative values are not allowed.
How to align within drawing area if/when width/height doesn't fill it completely.
Extra position offset to apply after alignment. Expressed as a percentage of overall drawing area size.
Creates a rectangle path with optional radii applied to any/all of the 4 corners (like CSS).