I have an svg application where a click on a polygon changes its color and sets
up an entry
to a database. This works fine except when I want to change my mind and
unselect the
polygon and change its color back to the original.
I tried to use a mouseup to select the polygon that needs to have its color
reset. This
sortof works but the click event also triggers the mouseup function so I get
extraneous
data in my database.
I tried up using a mousedown event to select and a mouseup to unselect, but
this is very
dependent on the users moving the mouse into or out of the polygon. This does
work,
however.
So, question 1 is: Is there a better way to select and then unselect a polygon?
Next
I tried to determine the fill color of a polygon via javascript but had little
success.
function restoreColor(evt) {
objet=evt.target;
att=objet.attributes;
var state = document.getElementById(att.item(0).value);
var style = state.style;
//var oldcolor = att.item(4).value); (this is the original polygon
color)
//alert(oldcolor); (this does not work)
style.setProperty("fill","blue", ""); (for some reason -- ie my lack
of expertise in
javascript -- I could not replace "blue" with att.item(4).value)
chaine = chaine+'field='+ att.item(0).value +"&";
alert("chaine" + " " + chaine);
}
Question 2 is how can I define a variable that would allow me to replace "blue"
in the
example above with the original polygon fill which is att.item(4).value
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