Short question: using SVG path, we can draw 99.99% of a circle and it shows up, but when it is 99.99999999% of a circle, then the circle won&#39;t show up. How can it be fixed?

The following SVG path can draw 99.99% of a circle:   (try it on http://jsfiddle.net/DFhUF/1381/ and see if you see 4 arcs or only 2 arcs, but note that if it is IE, it is rendered in VML, not SVG, but have the similar issue)

    M 100 100 a 50 50 0 1 0 0.00001 0
    
But when it is 99.99999999% of a circle, then nothing will show at all?

    M 100 100 a 50 50 0 1 0 0.00000001 0    
    
And that&#39;s the same with 100% of a circle (it is still an arc, isn&#39;t it, just a very complete arc)

    M 100 100 a 50 50 0 1 0 0 0 
    
How can that be fixed?  The reason is I use a function to draw a percentage of an arc, and if I need to &quot;special case&quot; a 99.9999% or 100% arc to use the circle function, that&#39;d be kind of silly.

Again, a test case on jsfiddle using RaphaelJS is at http://jsfiddle.net/DFhUF/1381/      
(and if it is VML on IE 8, even the second circle won&#39;t show... you have to change it to 0.01)

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**Update:**

This is because I am rendering an arc for a score in our system, so 3.3 points get 1/3 of a circle.  0.5 gets half a circle, and 9.9 points get 99% of a circle.  But what if there are scores that are 9.99 in our system?  Do I have to check whether it is close to 99.999% of a circle, and use an `arc` function or a `circle` function accordingly?  Then what about a score of 9.9987?  Which one to use?  It is ridiculous to need to know what kind of scores will map to a &quot;too complete circle&quot; and switch to a circle function, and when it is &quot;a certain 99.9%&quot; of a circle or a 9.9987 score, then use the arc function.


All Geometric Arc Solutions on Gang of Coders

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Circle drawing with SVG's arc path