Best IT Recipes

NVD3, clear svg before loading a new chart

I have several different NVD3 diagrams that I invoke in the same svg. I use buttons to call functions, each of which contains a new chart that uses its own data.

Is there a way to clear my single svg without deleting it? I want to press a button to call my chart, but clear svg before loading a new chart.

This is not a problem when using a chart view ... calling two multibarhorizontal charts, for example, just updates the shapes, which is good. The problem is loading two different charts, such as a line and a panel.

Thank you in advance

EDIT . The answers should be something like d 3.select("svg").remove() , but that just removes svg. I just want to clean it.

+42
charts
Mar 17 '14 at 10:38
source share
5 answers

You can select all elements under SVG using the "svg > *" selector, i.e. delete all of them, do

 d3.selectAll("svg > *").remove();
+70
Mar 17 '14 at 11:30
source share

This works for me:

 var svg = d3.select("svg"); svg.selectAll("*").remove();
+15
Jan 20 '15 at 13:58
source share

after creating the button, enter this code

 $("svg").remove()
0
Oct 28 '16 at 7:52
source share

If you are developing a dashboard with multiple widgets showing different d3 diagrams, use the following

 d3.selectAll("#d3-donutChart > *").remove();

this will clear only the specific schedule, not all svg on the web page.

Add this line immediately after subscribing to data in angular 2.

0
Nov 13 '17 at 6:24
source share
 For Re-Drawing the D3 Graphs by clearing the existing sketch and updating. <body> ... <input name="reDraw" type="button" value="Re-Draw" onclick="reDraw('data2.csv')" /> ... <script> var margin = {top: 20, right: 20, bottom: 30, left: 40}, width = 960 - margin.left - margin.right, height = 500 - margin.top - margin.bottom; var x0 = d3.scale.ordinal() .rangeRoundBands([0, width], .1); var x1 = d3.scale.ordinal(); var y = d3.scale.linear() .range([height, 0]); var color = d3.scale.ordinal().range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]); var xAxis = d3.svg.axis() .scale(x0) .orient("bottom"); var yAxis = d3.svg.axis() .scale(y) .orient("left") .tickFormat(d3.format(".2s")); //d3.select('#chart svg') var svg = d3.select("body").append("svg") .attr("width", width + margin.left + margin.right) .attr("height", height + margin.top + margin.bottom) .append("g") .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); var updateData = function(getData){ d3.selectAll('svg > g > *').remove(); d3.csv(getData, function(error, data) { if (error) throw error; var ageNames = d3.keys(data[0]).filter(function(key) { return key !== "State"; }); data.forEach(function(d) { d.ages = ageNames.map(function(name) { return {name: name, value: +d[name]}; }); }); x0.domain(data.map(function(d) { return d.State; })); x1.domain(ageNames).rangeRoundBands([0, x0.rangeBand()]); y.domain([0, d3.max(data, function(d) { return d3.max(d.ages, function(d) { return d.value; }); })]); svg.append("g") .attr("class", "x axis") .attr("transform", "translate(0," + height + ")") .call(xAxis); svg.append("g") .attr("class", "y axis") .call(yAxis) .append("text") .attr("transform", "rotate(-90)") .attr("y", 6) .attr("dy", ".71em") .style("text-anchor", "end") .text("Population"); var state = svg.selectAll(".state") .data(data) .enter().append("g") .attr("class", "state") .attr("transform", function(d) { return "translate(" + x0(d.State) + ",0)"; }); state.selectAll("rect") .data(function(d) { return d.ages; }) .enter().append("rect") .attr("width", x1.rangeBand()) .attr("x", function(d) { return x1(d.name); }) .attr("y", function(d) { return y(d.value); }) .attr("height", function(d) { return height - y(d.value); }) .style("fill", function(d) { return color(d.name); }); var legend = svg.selectAll(".legend") .data(ageNames.slice().reverse()) .enter().append("g") .attr("class", "legend") .attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; }); legend.append("rect") .attr("x", width - 18) .attr("width", 18) .attr("height", 18) .style("fill", color); legend.append("text") .attr("x", width - 24) .attr("y", 9) .attr("dy", ".35em") .style("text-anchor", "end") .text(function(d) { return d; }); }); } updateData('data1.csv'); </script> </body>
-one
Feb 24 '16 at 9:23
source share


More articles:


All Articles