score:3
It doesn't work the second time because you are operating on the .enter()
selection, which will be empty the second time draw()
is called because the elements exist already.
To fix this, move the declaration of row
and col
outside the draw()
function. Inside the draw()
function, only keep the code that actually changes. Something like
function draw(minval,maxval){
var colorScale = d3.scale.linear()
.domain([minval, maxval])
.range([colorLow, colorHigh]);
col.style("fill", function(d) { return colorScale(d.value); });
}
Source: stackoverflow.com
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