Improve area chart creation

public/js/cuerpos_charts.js

@@ -39,7 +39,7 @@ function customizeGrip(grip) {
 
 let mainTextColor = getComputedStyle(document.body).getPropertyValue('--main-text-color');
 
-const createRadialSeries = (chart, value, category, name, color) => {
+const makeRadialSeries = (chart, value, category, name, color) => {
     let radialSeries = chart.series.push(new am4charts.RadarSeries());
     radialSeries.dataFields.valueY = value;
     radialSeries.dataFields.categoryX = category;
@@ -64,7 +64,7 @@ const makeRadialRange = (axis, start, end, color, span) => {
     radialRange.locations.endCategory = span ? span : "";
 }
 
-const createLineAxisAndSeries = (chart, field, name, opposite, bullet) => {
+const makeLineAxisAndSeries = (chart, field, name, opposite, bullet) => {
     var lineValueAxis = chart.yAxes.push(new am4charts.ValueAxis());
     lineValueAxis.fontSize = 8;
 
@@ -91,7 +91,7 @@ const createLineAxisAndSeries = (chart, field, name, opposite, bullet) => {
     lineValueAxis.renderer.opposite = opposite;
 }
 
-const makeLineRange = (axis, start, width, color) => {
+const makeDateRange = (axis, start, width, color) => {
     yearList.forEach( y => {
         var range = axis.axisRanges.create();
         range.date = new Date(y, start, 1, 0, 0, 0);
@@ -100,6 +100,23 @@ const makeLineRange = (axis, start, width, color) => {
         range.axisFill.fillOpacity = 0.4;
     })
 }
+
+const makeAreaSeries = (chart, field, name) => {
+    let areasSeries = chart.series.push(new am4charts.LineSeries());
+    areasSeries.dataFields.dateX = "date";
+    areasSeries.name = name;
+    areasSeries.dataFields.valueY = field;
+    areasSeries.tooltipText = "[bold]{name}: [/]{valueY.formatNumber('#,###.#')} Ha";
+    //areasSeries.tooltip.background.fill = am4core.color("#FFF");
+    areasSeries.tooltip.getStrokeFromObject = true;
+    areasSeries.tooltip.background.strokeWidth = 3;
+    //areasSeries.tooltip.getFillFromObject = false;
+    areasSeries.fillOpacity = 0.6;
+    areasSeries.strokeWidth = 2;
+    areasSeries.stacked = true;
+    return areasSeries;
+}
+
 const makeRadialChart = (data, months, years) => {
     let radialChart = am4core.create("radial_chart", am4charts.RadarChart);
 
@@ -131,7 +148,7 @@ const makeRadialChart = (data, months, years) => {
     /* Create and configure series */
     let seriesColor = ["#F98293", "#2AC2BB", "#FDA259"];
     years.forEach( (year, i) => {
-        createRadialSeries(radialChart, year, "month", year, seriesColor[i]);
+        makeRadialSeries(radialChart, year, "month", year, seriesColor[i]);
     });
 
     radialChart.scrollbarX = new am4core.Scrollbar();
@@ -153,6 +170,7 @@ const makeRadialChart = (data, months, years) => {
 
     radialChart.cursor = new am4charts.RadarCursor();
 
+    // add line legend
     radialChart.legend = new am4charts.Legend();
     //radialChart.legend.fontSize = 10;
     radialChart.legend.fontSize = 9;
@@ -164,6 +182,8 @@ const makeRadialChart = (data, months, years) => {
         { name: "Invernal", fill: am4core.color("#E1DBC8") }
     ];
 
+    // add second legend
+    radialChart.legend = new am4charts.Legend();
     radialChart.legend.data = legenddata;
     radialChart.legend.fontSize = 10;
     radialChart.legend.labels.template.fill = am4core.color(mainTextColor);
@@ -189,16 +209,16 @@ const makeLineChart = (data) => {
     lineDateAxis.renderer.labels.template.fill = am4core.color(mainTextColor);
 
     // Create series
-    createLineAxisAndSeries(lineChart, "permanente", "Agua permanente", false, "circle");
-    createLineAxisAndSeries(lineChart, "temporal", "Áreas temporalmente inundadas", true, "triangle");
-    createLineAxisAndSeries(lineChart, "vegetacion", "Suelos húmedos-vegetación acuática", true, "rectangle");
+    makeLineAxisAndSeries(lineChart, "permanente", "Agua permanente", false, "circle");
+    makeLineAxisAndSeries(lineChart, "temporal", "Áreas temporalmente inundadas", true, "triangle");
+    makeLineAxisAndSeries(lineChart, "vegetacion", "Suelos húmedos-vegetación acuática", true, "rectangle");
 
     // create line ranges
-    makeLineRange(lineDateAxis, 0, 2, "#E1DBC8");
-    makeLineRange(lineDateAxis, 2, 2, "#595952");
-    makeLineRange(lineDateAxis, 4, 4, "#838278");
-    makeLineRange(lineDateAxis, 8, 3, "#B1AE9F");
-    makeLineRange(lineDateAxis, 11, 1, "#E1DBC8");
+    makeDateRange(lineDateAxis, 0, 2, "#E1DBC8");
+    makeDateRange(lineDateAxis, 2, 2, "#595952");
+    makeDateRange(lineDateAxis, 4, 4, "#838278");
+    makeDateRange(lineDateAxis, 8, 3, "#B1AE9F");
+    makeDateRange(lineDateAxis, 11, 1, "#E1DBC8");  // FIXME: this range shows a small line separator between Dec-Jan
 
     // Add cursor
     lineChart.cursor = new am4charts.XYCursor();
@@ -210,15 +230,7 @@ const makeLineChart = (data) => {
     // Style scrollbar
 }
 
-am4core.ready(function() {
-
-    // Themes begin
-    am4core.useTheme(am4themes_animated);
-    am4core.useTheme(grijalva_theme);
-    //let mainTextColor = getComputedStyle(document.body).getPropertyValue('--main-text-color');
-    // Themes end
-
-    // area chart
+const makeAreaChart = (data) => {
     let areaChart = am4core.create("stackedAreaChart", am4charts.XYChart);
 
     let areaTitle = areaChart.titles.create();
@@ -227,6 +239,8 @@ am4core.ready(function() {
     areaTitle.marginBottom = 15;
     areaTitle.fill = am4core.color(mainTextColor);
 
+    areaChart.data = data;
+
     // chart.dateFormatter.inputDateFormat = "dd-mm-yyyy";
     var areaDateAxis = areaChart.xAxes.push(new am4charts.DateAxis());
     areaDateAxis.renderer.minGridDistance = 60;
@@ -244,57 +258,20 @@ am4core.ready(function() {
     areaValueAxis.fontSize = 8;
     areaValueAxis.renderer.labels.template.fill = am4core.color(mainTextColor);
 
-    //TODO: make these series in a more efficient way
-    var areasSeries = areaChart.series.push(new am4charts.LineSeries());
-    areasSeries.dataFields.dateX = "date";
-    areasSeries.name = "Agua permanente";
-    areasSeries.dataFields.valueY = "permanente";
-    //areasSeries.tooltipHTML = "<img src='https://www.amcharts.com/lib/3/images/car.png' style='vertical-align:bottom; margin-right: 10px; width:28px; height:21px;'><span style='font-size:14px; color:#000000;'><b>{valueY.value}</b></span>";
-    //areasSeries.tooltipText = "[#000]{valueY.value}[/]";
-    areasSeries.tooltipText = "[bold]{name}: [/]{valueY.formatNumber('#,###.#')} Ha";
-    //areasSeries.tooltip.background.fill = am4core.color("#FFF");
-    areasSeries.tooltip.getStrokeFromObject = true;
-    areasSeries.tooltip.background.strokeWidth = 3;
-    //areasSeries.tooltip.getFillFromObject = false;
-    areasSeries.fillOpacity = 0.6;
-    areasSeries.strokeWidth = 2;
-    areasSeries.stacked = true;
+    // Create series
+    let areaSeries1 = makeAreaSeries(areaChart, "permanente", "Agua permanente");
+    let areaSeries2 = makeAreaSeries(areaChart, "temporal", "Áreas temporalmente inundadas");
+    let areaSeries3 = makeAreaSeries(areaChart, "vegetacion", "Suelos húmedos-vegetación acuática");
 
-    var areasSeries2 = areaChart.series.push(new am4charts.LineSeries());
-    areasSeries2.name = "Áreas temporalmente inundadas";
-    areasSeries2.dataFields.dateX = "date";
-    areasSeries2.dataFields.valueY = "temporal";
-    //areasSeries2.tooltipHTML = "<img src='https://www.amcharts.com/lib/3/images/motorcycle.png' style='vertical-align:bottom; margin-right: 10px; width:28px; height:21px;'><span style='font-size:14px; color:#000000;'><b>{valueY.value}</b></span>";
-    //areasSeries2.tooltipText = "[#000]{valueY.value}[/]";
-    areasSeries2.tooltipText = "[bold]{name}: [/]{valueY.formatNumber('#,###.#')} Ha";
-    //areasSeries2.tooltip.background.fill = am4core.color("#FFF");
-    //areasSeries2.tooltip.getFillFromObject = false;
-    areasSeries2.tooltip.getStrokeFromObject = true;
-    areasSeries2.tooltip.background.strokeWidth = 3;
-    areasSeries2.sequencedInterpolation = true;
-    areasSeries2.fillOpacity = 0.6;
-    areasSeries2.stacked = true;
-    areasSeries2.strokeWidth = 2;
-
-    var areasSeries3 = areaChart.series.push(new am4charts.LineSeries());
-    areasSeries3.name = "Suelos húmedos-vegetación acuática";
-    areasSeries3.dataFields.dateX = "date";
-    areasSeries3.dataFields.valueY = "vegetacion";
-    //areasSeries3.tooltipHTML = "<img src='https://www.amcharts.com/lib/3/images/bicycle.png' style='vertical-align:bottom; margin-right: 10px; width:28px; height:21px;'><span style='font-size:14px; color:#000000;'><b>{valueY.value}</b></span>";
-    //areasSeries3.tooltipText = "[#000]{valueY.value}[/]";
-    areasSeries3.tooltipText = "[bold]{name}: [/]{valueY.formatNumber('#,###.#')} Ha";
-    //areasSeries3.tooltip.background.fill = am4core.color("#FFF");
-    //areasSeries3.tooltip.getFillFromObject = false;
-    areasSeries3.tooltip.getStrokeFromObject = true;
-    areasSeries3.tooltip.background.strokeWidth = 3;
-    areasSeries3.sequencedInterpolation = true;
-    areasSeries3.fillOpacity = 0.6;
-    areasSeries3.defaultState.transitionDuration = 1000;
-    areasSeries3.stacked = true;
-    areasSeries3.strokeWidth = 2;
+    // create line ranges
+    makeDateRange(areaDateAxis, 0, 2, "#E1DBC8");
+    makeDateRange(areaDateAxis, 2, 2, "#595952");
+    makeDateRange(areaDateAxis, 4, 4, "#838278");
+    makeDateRange(areaDateAxis, 8, 3, "#B1AE9F");
+    makeDateRange(areaDateAxis, 11, 1, "#E1DBC8"); // FIXME: this range shows a small line separator  between Dec-Jan
 
     areaChart.cursor = new am4charts.XYCursor();
-    areaChart.snapToSeries = areasSeries2;
+    areaChart.snapToSeries = areaSeries2;
     areaChart.cursor.xAxis = areaDateAxis;
     areaChart.scrollbarX = new am4core.Scrollbar();
     areaChart.scrollbarX.minHeight = 1;
@@ -303,100 +280,13 @@ am4core.ready(function() {
     customizeGrip(areaChart.scrollbarX.endGrip);
     //areaChart.scrollbarX.position = "bottom";
 
-    // Add a legend
-    // axis ranges
-    //TODO: make these ranges in a more efficient way
-    var areaRange = areaDateAxis.axisRanges.create();
-    areaRange.date = new Date(2016, 0, 1);
-    areaRange.endDate = new Date(2016, 2, 1);
-    areaRange.axisFill.fill = am4core.color("#E1DBC8");
-    areaRange.axisFill.fillOpacity = 0.4;
-
-    var areaRange1 = areaDateAxis.axisRanges.create();
-    areaRange1.date = new Date(2016, 2, 1);
-    areaRange1.endDate = new Date(2016, 4, 1);
-    areaRange1.axisFill.fill = am4core.color("#595952");
-    areaRange1.axisFill.fillOpacity = 0.4;
-
-    var areaRange2 = areaDateAxis.axisRanges.create();
-    areaRange2.date = new Date(2016, 4, 1);
-    areaRange2.endDate = new Date(2016, 8, 1);
-    areaRange2.axisFill.fill = am4core.color("#838278");
-    areaRange2.axisFill.fillOpacity = 0.4;
-
-    var areaRange3 = areaDateAxis.axisRanges.create();
-    areaRange3.date = new Date(2016, 8, 1);
-    areaRange3.endDate = new Date(2016, 11, 1);
-    areaRange3.axisFill.fill = am4core.color("#B1AE9F");
-    areaRange3.axisFill.fillOpacity = 0.4;
-
-    var areaRange4 = areaDateAxis.axisRanges.create();
-    areaRange4.date = new Date(2016, 11, 1);
-    areaRange4.endDate = new Date(2017, 2, 1);
-    areaRange4.axisFill.fill = am4core.color("#E1DBC8");
-    areaRange4.axisFill.fillOpacity = 0.4;
-
-    var areaRange5 = areaDateAxis.axisRanges.create();
-    areaRange5.date = new Date(2017, 2, 1);
-    areaRange5.endDate = new Date(2017, 4, 1);
-    areaRange5.axisFill.fill = am4core.color("#595952");
-    areaRange5.axisFill.fillOpacity = 0.4;
-
-    var areaRange6 = areaDateAxis.axisRanges.create();
-    areaRange6.date = new Date(2017, 4, 1);
-    areaRange6.endDate = new Date(2017, 8, 1);
-    areaRange6.axisFill.fill = am4core.color("#838278");
-    areaRange6.axisFill.fillOpacity = 0.4;
-
-    var areaRange7 = areaDateAxis.axisRanges.create();
-    areaRange7.date = new Date(2017, 8, 1);
-    areaRange7.endDate = new Date(2017, 11, 1);
-    areaRange7.axisFill.fill = am4core.color("#B1AE9F");
-    areaRange7.axisFill.fillOpacity = 0.4;
-
-    var areaRange8 = areaDateAxis.axisRanges.create();
-    areaRange8.date = new Date(2017, 11, 1);
-    areaRange8.endDate = new Date(2018, 2, 1);
-    areaRange8.axisFill.fill = am4core.color("#E1DBC8");
-    areaRange8.axisFill.fillOpacity = 0.4;
-
-    var areaRange9 = areaDateAxis.axisRanges.create();
-    areaRange9.date = new Date(2018, 2, 1);
-    areaRange9.endDate = new Date(2018, 4, 1);
-    areaRange9.axisFill.fill = am4core.color("#595952");
-    areaRange9.axisFill.fillOpacity = 0.4;
-
-    var areaRange10 = areaDateAxis.axisRanges.create();
-    areaRange10.date = new Date(2018, 4, 1);
-    areaRange10.endDate = new Date(2018, 8, 1);
-    areaRange10.axisFill.fill = am4core.color("#838278");
-    areaRange10.axisFill.fillOpacity = 0.4;
-
-    var areaRange11 = areaDateAxis.axisRanges.create();
-    areaRange11.date = new Date(2018, 8, 1);
-    areaRange11.endDate = new Date(2018, 11, 1);
-    areaRange11.axisFill.fill = am4core.color("#B1AE9F");
-    areaRange11.axisFill.fillOpacity = 0.4;
-
-    var areaRange12 = areaDateAxis.axisRanges.create();
-    areaRange12.date = new Date(2018, 11, 1);
-    areaRange12.endDate = new Date(2019, 0, 1);
-    areaRange12.axisFill.fill = am4core.color("#E1DBC8");
-    areaRange12.axisFill.fillOpacity = 0.4;
-
     /* Set up cursor behavior */
     let previousDate = "";
     areaChart.cursor.events.on("cursorpositionchanged", function(ev) {
-        let xAxis = ev.target.chart.xAxes.getIndex(0);
-        /*let axis = dateAxis.positionToDate(dateAxis.toAxisPosition(ev.target.xPosition)),
-            currentYear = axis.getFullYear().toString(),
-            currentMonth = axis.getMonth().toString();
-        console.log(currentYear, currentMonth)*/
-        let yy = xAxis.positionToDate(xAxis.toAxisPosition(ev.target.xPosition)).getFullYear().toString();
-        let mm = xAxis.positionToDate(xAxis.toAxisPosition(ev.target.xPosition)).getMonth().toString();
-        let month = 0,
-            startDate = 0,
-            endDate = 0;
+        let dateAxis = ev.target.chart.xAxes.getIndex(0);
+        let yy = dateAxis.positionToDate(dateAxis.toAxisPosition(ev.target.xPosition)).getFullYear().toString();
+        let mm = dateAxis.positionToDate(dateAxis.toAxisPosition(ev.target.xPosition)).getMonth().toString();
+        let month = 0;
         if (mm < 9) { month = "0" + (parseInt(mm) + 1).toString(); } else {
             month = parseInt(mm) + 1;
             month.toString();
@@ -408,6 +298,15 @@ am4core.ready(function() {
             updateBarChart(filterDate, barChartData);
         }
     })
+}
+
+am4core.ready(function() {
+
+    // Themes begin
+    am4core.useTheme(am4themes_animated);
+    am4core.useTheme(grijalva_theme);
+    //let mainTextColor = getComputedStyle(document.body).getPropertyValue('--main-text-color');
+    // Themes end
 
     // bar chart
     var barChart = am4core.create("dimfrcpo-graph", am4charts.XYChart);

public/js/cuerpos_functions.js

@@ -5,7 +5,7 @@
  * January 2021
  */
 
-/* globals omnivore, Promise, makeBaseMap, am4core, makeRadialChart, makeLineChart */
+/* globals omnivore, Promise, makeBaseMap, am4core, makeRadialChart, makeLineChart, makeAreaChart */
 /* exported. userFiles, userDates, timeParse, layerControl, yearList */
 
 let timeParse,
@@ -323,7 +323,7 @@ const populateMap = async(mapData) => {
         makeRadialChart(chartData, monthArray, yearList);
     });
 
-    //LINE CHART
+    // LINE CHART
     // get am chart - may need this to update chart on date change
     //let linesChart = am4core.registry.baseSprites.find(c => c.htmlContainer.id === "linesChart");
 
@@ -337,7 +337,6 @@ const populateMap = async(mapData) => {
         return new Promise(resolve => {
             resolve(queryData);
         });
-
     });
     // wait for all queries to complete and then set chart data
     Promise.all(queries_ls).then( data => {
@@ -361,45 +360,45 @@ const populateMap = async(mapData) => {
         chartData.sort((a, b) => (a.date > b.date) ? 1 : -1);
         makeLineChart(chartData);
     });
-    //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ STACKED AREAS CHART
-    let data_sa = [];
-    let stackedAreaChart = am4core.registry.baseSprites.find(c => c.htmlContainer.id === "stackedAreaChart");
+    // STACKED AREA CHART
+    // get am chart - may need this to update chart on date change
+    //let stackedAreaChart = am4core.registry.baseSprites.find(c => c.htmlContainer.id === "stackedAreaChart");
 
     // async queries for each date that has been loaded
+    // TODO: this is the exact same call as in LINE CHART => merge into one
     const queries_sa = userFiles.map(async(mes, i) => {
         let query_sa = `${baseUrl}/query/${mes}?columns=sum(areacpo)/10000 area, descrip&group=descrip`;
         const queryData = await d3.json(query_sa);
-        let date = new Date(dateArray[i]);
-        //date.setFullYear(2016)
         for (const wbody in queryData) {
-            queryData[wbody].date = date;
+            queryData[wbody].date = new Date(userDates[i]);
         }
-        data_sa.push(queryData);
-
+        //data_sa.push(queryData);
+        return new Promise(resolve => {
+            resolve(queryData);
+        });
     });
-    // wait for all queries to complete
-    const dataQueries_sa = await Promise.all(queries_sa);
-    // and then set chart data
-    //lineStackedChart.data = data_ls;
-    var merged_1 = [].concat.apply([], data_sa);
-    //console.log(data_sa);
-
-    let aguaPermanente_1 = merged_1.filter(function(d) { return d.descrip == "Agua permanente" });
-    let aguaTemporal_1 = merged_1.filter(function(d) { return d.descrip == "Áreas temporalmente inundadas" });
-    let aguaVegetacion_1 = merged_1.filter(function(d) { return d.descrip == "Suelos húmedos-vegetación acuática" });
-
-    let j;
-    for (j = 0; j < aguaPermanente_1.length; j++) {
-        aguaPermanente_1[j].permanente = aguaPermanente_1[j].area;
-        aguaPermanente_1[j].temporal = aguaTemporal_1[j].area;
-        aguaPermanente_1[j].vegetacion = aguaVegetacion_1[j].area;
-        delete aguaPermanente_1[j].descrip;
-        delete aguaPermanente_1[j].area;
-    }
+    // wait for all queries to complete and then set chart data
+    Promise.all(queries_sa).then( data => {
+        // TODO: maybe make this a function so it can be used to update chart when changing dates
+        let merged = [].concat.apply([], data);
+        let aguaPermanente = merged.filter(d => d.descrip == "Agua permanente" );
+        let aguaTemporal = merged.filter(d => d.descrip == "Áreas temporalmente inundadas" );
+        let aguaVegetacion = merged.filter(d => d.descrip == "Suelos húmedos-vegetación acuática" );
+
+        let chartData = [];
+        aguaPermanente.forEach( (wb, i) => {
+            let element = {
+                permanente: aguaPermanente[i].area,
+                temporal: aguaTemporal[i].area,
+                vegetacion: aguaVegetacion[i].area,
+                date: aguaPermanente[i].date
+            }
+            chartData.push(element);
+        });
 
-    let grijalva_bodies_1 = aguaPermanente_1;
-    grijalva_bodies_1.sort((a, b) => (a.date > b.date) ? 1 : -1)
-    stackedAreaChart.data = grijalva_bodies_1;
+        chartData.sort((a, b) => (a.date > b.date) ? 1 : -1);
+        makeAreaChart(chartData);
+    });
 
     // populate bars