public String getDomainCode() { if (xAxis.getDomain() != null) domainCode = "x.domain(" + xAxis.getDomain() + ");\n"; else domainCode = "x.domain(d3.extent(data, function(d) { return d.x; }));\n"; if (yAxis.getDomain() != null) domainCode += "y.domain(" + yAxis.getDomain() + ");\n"; else domainCode += "y.domain(d3.extent(data, function(d) { return d.y; }));\n"; return domainCode; }