在 google 个图表中向下钻取

Question

我正在尝试在饼图中实施钻取或向下钻取。我实际上有一个工作的向下钻取饼图，但是，当我更改集合的值时，它不起作用。我想知道出了什么问题，因为我完全遵循了工作代码并只是替换了它的值。该图表根本没有显示并且有一个错误：Uncaught Error: Unknown header type: 17format+en,default+en,ui+en,controls+en,corechart+en.I.js:191。我不确定这个错误是否与问题有关。

Javascript:

        google.load('visualization', '1', {packages: ['corechart', 'controls']});
        google.setOnLoadCallback(drawChart1);

        var index = 0;
        function drawChart1() {
            <%
                int aku = 0, cdu = 0, ls = 0, ptr = 0, rad = 0, oper = 0;
                int aku1 = 0, aku2 = 0, aku3 = 0, aku4 = 0, aku5 = 0;
                int cdu1 = 0, cdu2 = 0, cdu3 = 0, cdu4 = 0, cdu5 = 0, cdu6 = 0;
                int ls1 = 0, ls2 = 0, ls3 = 0, ls4 = 0, ls5 = 0, ls6 = 0, ls7 = 0, ls8 = 0, ls9 = 0, ls10 = 0;
                int ptr1 = 0, ptr2 = 0, ptr3 = 0, ptr4 = 0;
                int rad1 = 0, rad2 = 0, rad3 = 0;
                int oper1 = 0;
            %> //Dummy values

            //Main
            var main = [
                ['Artificial Kidney Unit', <%=aku%>],
                ['Cardiac Diagnostic Unit', <%=cdu%>],
                ['Laboratory Services', <%=ls%>],
                ['Physical Therapy and Rehabilitation', <%=ptr%>],
                ['Radiology', <%=rad%>],
                ['Operations', <%=oper%>]
            ];

            //Aku
            var akuu = [
                ['Hemodialysis', <%=aku1%>],
                ['Peritoneal Dialysis', <%=aku2%>],
                ['Continuous Renal Replacement Therapy', <%=aku3%>],
                ['Sustained Low Efficient Dialysis', <%=aku4%>],
                ['Private Dialysis Suite', <%=aku5%>]
            ];

            //Cdu
            var cduu = [
                ['Electrocardiography', <%=cdu1%>],
                ['Ambulatory Electrocardiography', <%=cdu2%>],
                ['Exercise Stress Test', <%=cdu3%>],
                ['2D Echo', <%=cdu4%>],
                ['Lower Extremity Arterial & Venous Color Duplex Scan', <%=cdu5%>],
                ['Carotid Artery Duplex Scan', <%=cdu6%>]
            ];

            //Ls
            var lss = [
                ['Hematology', <%=ls1%>],
                ['Blood Chemistry', <%=ls2%>],
                ['Immunology and Serology', <%=ls3%>],
                ['Clinical Microscopy', <%=ls4%>],
                ['Microbiology', <%=ls5%>],
                ['Blood Bank and Transfusion Services', <%=ls6%>],
                ['Drug Testing', <%=ls7%>],
                ['Parasitology', <%=ls8%>],
                ['Surgical Pathology', <%=ls9%>],
                ['Cytopathology', <%=ls10%>]
            ];

            //Ptr
            var ptrr = [
                ['Physical Therapy', <%=ptr1%>],
                ['Occupational Therapy', <%=ptr2%>],
                ['Ultrasound Diagnostic Therapy', <%=ptr3%>],
                ['Orthotics and Prosthetic Evaluation', <%=ptr4%>]
            ];

            //rad
            var radd = [
                ['X-ray', <%=rad1%>],
                ['Ultrasound', <%=rad2%>],
                ['CT Scan', <%=rad3%>]
            ];

            //oper
            var operr = [
                ['Surgery', <%=oper1%>]
            ];

            var collection = [];
            collection[0] = google.visualization.arrayToDataTable(main);
            collection[1] = google.visualization.arrayToDataTable(akuu);
            collection[2] = google.visualization.arrayToDataTable(cduu);
            collection[3] = google.visualization.arrayToDataTable(lss);
            collection[4] = google.visualization.arrayToDataTable(ptrr);
            collection[5] = google.visualization.arrayToDataTable(radd);
            collection[6] = google.visualization.arrayToDataTable(operr);

            var options1 = {
                title: 'Departments',
                animation: {'duration': 500, 
                    'easing': 'in'},
                action: function() {
                    button.onclick = function() {
                        recreateDashboard(0);
                    };
                }
            };

            var chart1 = new google.visualization.PieChart(document.getElementById('chart1'));

            google.visualization.events.addListener(chart1, 'select', drillIn);
            google.visualization.events.addListener(chart1, 'click', drillOut);

            chart1.draw(collection[0], options1);

            function drillIn() {
                var sel = chart1.getSelection();
                var row = chart1.getSelection()[0].row;
                options1['title'] = collection[index].getValue(sel[0].row, 0);

                if(index === 0) {
                    if(row === 0) {
                        index = 1;
                    }
                    if(row === 1) {
                        index = 2;
                    }
                    if(row === 2) {
                        index = 3;
                    }
                    if(row === 3) {
                        index = 4;
                    }
                    if(row === 4) {
                        index = 5;
                    }
                    if(row === 5) {
                        index = 6;
                    }
                }
                else if(index === 1 || index === 2 || index === 3 || index === 4 || index === 5 || index === 6) {
                    options1['title'] = '# of services rendered in <%=year%>';
                    index = 0;
                }

                chart1.draw(collection[index], options1);


            }

            function drillOut(e) {
                if(e.targetID === "title") {
                    if(index !== 0)
                        index--;
                    else if(index === 4 || index === 6 || index === 8)
                        index -= 2;
                    chart1.draw(collection[index], options1);
                }
            }

Html:

            <div id="chart1">

            </div>

Answer 1

我发现错误了。在输入值之前，所有这些都需要一个标题。

修改后的代码：

        //Main
        var main = [
            ['Department', 'Value'],
            ['Cardiac Diagnostic Unit', <%=cdu%>],
            ['Laboratory Services', <%=ls%>],
            ['Physical Therapy and Rehabilitation', <%=ptr%>],
            ['Radiology', <%=rad%>],
            ['Operations', <%=oper%>]
        ];

        //Aku
        var akuu = [
            ['Service', 'Value'],
            ['Hemodialysis', <%=aku1%>],
            ['Peritoneal Dialysis', <%=aku2%>],
            ['Continuous Renal Replacement Therapy', <%=aku3%>],
            ['Sustained Low Efficient Dialysis', <%=aku4%>],
            ['Private Dialysis Suite', <%=aku5%>]
        ];

        //Cdu
        var cduu = [
            ['Service', 'Value'],
            ['Electrocardiography', <%=cdu1%>],
            ['Ambulatory Electrocardiography', <%=cdu2%>],
            ['Exercise Stress Test', <%=cdu3%>],
            ['2D Echo', <%=cdu4%>],
            ['Lower Extremity Arterial & Venous Color Duplex Scan', <%=cdu5%>],
            ['Carotid Artery Duplex Scan', <%=cdu6%>]
        ];

        //Ls
        var lss = [
            ['Service', 'Value'],
            ['Hematology', <%=ls1%>],
            ['Blood Chemistry', <%=ls2%>],
            ['Immunology and Serology', <%=ls3%>],
            ['Clinical Microscopy', <%=ls4%>],
            ['Microbiology', <%=ls5%>],
            ['Blood Bank and Transfusion Services', <%=ls6%>],
            ['Drug Testing', <%=ls7%>],
            ['Parasitology', <%=ls8%>],
            ['Surgical Pathology', <%=ls9%>],
            ['Cytopathology', <%=ls10%>]
        ];

        //Ptr
        var ptrr = [
            ['Service', 'Value'],
            ['Physical Therapy', <%=ptr1%>],
            ['Occupational Therapy', <%=ptr2%>],
            ['Ultrasound Diagnostic Therapy', <%=ptr3%>],
            ['Orthotics and Prosthetic Evaluation', <%=ptr4%>]
        ];

        //rad
        var radd = [
            ['Service', 'Value'],
            ['X-ray', <%=rad1%>],
            ['Ultrasound', <%=rad2%>],
            ['CT Scan', <%=rad3%>]
        ];

        //oper
        var operr = [
            ['Service', 'Value'],
            ['Surgery', <%=oper1%>]
        ];

在 google 个图表中向下钻取

Drill down in google charts

google-visualization

drilldown