Reputation: 7837
I have a piece of JavaScript code which creates (using D3.js) an svg
element which contains a chart. I want to update the chart based on new data coming from a web service using AJAX, the problem is that each time I click on the update button, it generates a new svg
, so I want to remove the old one or update its content.
Here is a snippet from the JavaScript function where I create the svg
:
var svg = d3.select("body")
.append("svg")
.attr("width", w)
.attr("height", h);
How can I remove the old svg
element or at least replace its content?
Upvotes: 230
Views: 277087
Reputation: 374
I followed the code from https://www.d3-graph-gallery.com/graph/line_basic.html and had this code:
svg.append("path")
.datum(filteredData)
.attr("fill", "none")
.attr("stroke", "blue")
.attr("stroke-width", 1.5)
.attr("d", d3.line()
.x(function(k) { return x(k.date) })
.y(function(k) { return y(k.value) })
)
So for me it turned out to be that I slap this right before the generation of new line:
d3.selectAll("path").remove()
Upvotes: 2
Reputation: 3051
If you want to get rid of all children,
svg.selectAll("*").remove();
will remove all content associated with the svg.
Upvotes: 173
Reputation: 7837
Here is the solution:
d3.select("svg").remove();
This is a remove
function provided by D3.js.
Upvotes: 314
Reputation: 3791
You could also just use jQuery to remove the contents of the div that contains your svg.
$("#container_div_id").html("");
Upvotes: 5
Reputation: 4378
I had two charts.
<div id="barChart"></div>
<div id="bubbleChart"></div>
This removed all charts.
d3.select("svg").remove();
This worked for removing the existing bar chart, but then I couldn't re-add the bar chart after
d3.select("#barChart").remove();
Tried this. It not only let me remove the existing bar chart, but also let me re-add a new bar chart.
d3.select("#barChart").select("svg").remove();
var svg = d3.select('#barChart')
.append('svg')
.attr('width', width + margins.left + margins.right)
.attr('height', height + margins.top + margins.bottom)
.append('g')
.attr('transform', 'translate(' + margins.left + ',' + margins.top + ')');
Not sure if this is the correct way to remove, and re-add a chart in d3. It worked in Chrome, but have not tested in IE.
Upvotes: 38
Reputation:
Setting the id attribute when appending the svg element can also let d3 select so remove() later on this element by id :
var svg = d3.select("theParentElement").append("svg")
.attr("id","the_SVG_ID")
.attr("width",...
...
d3.select("#the_SVG_ID").remove();
Upvotes: 66
Reputation: 260
I am using the SVG using D3.js and i had the same issue.
I used this code for removing the previous svg but the linear gradient inside SVG were not coming in IE
$("#container_div_id").html("");
then I wrote the below code to resolve the issue
$('container_div_id g').remove();
$('#container_div_id path').remove();
here i am removing the previous g and path inside the SVG, replacing with the new one.
Keeping my linear gradient inside SVG tags in the static content and then I called the above code, This works in IE
Upvotes: 9
Reputation: 8169
You should use append("svg:svg")
, not append("svg")
so that D3 makes the element with the correct 'namespace' if you're using xhtml.
Upvotes: 4