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我嘗試使用amcharts進行多行。我要使用的類型是平滑的線條（查看演示here）。我已經看到可以在這個link上繪製多個折線圖和多個數值軸。所以，我嘗試在平滑線上實現它：AmCharts平滑線串行多個Y軸不顯示
a。 2行
b。它們的尺寸都不一樣，所以我需要兩個Y軸。
問題是：只出現一個Y軸。
這是我使用javascript寫的代碼：遇到類似問題
<script type="text/javascript">
var chart;
var graph;
var chartData = [
{"year":"1950", "v1":0.2, "v2":-26},
{"year":"1951", "v1":-0.2, "v2":-45},
{"year":"1952", "v1":1, "v2":-14},
{"year":"1953", "v1":0.2, "v2":6},
{"year":"1954", "v1":-0.5, "v2":18},
{"year":"1955", "v1":0.8, "v2":-8},
{"year":"1956", "v1":-0.4, "v2":-35},
{"year":"1957", "v1":-0.4, "v2":-37},
{"year":"1958", "v1":-0.2, "v2":27},
{"year":"1959", "v1":1.3, "v2":-14},
{"year":"1960", "v1":1, "v2":8},
{"year":"1961", "v1":0, "v2":-6},
{"year":"1962", "v1":0.4, "v2":9},
{"year":"1963", "v1":-0.3, "v2":-38},
{"year":"1964", "v1":0.7, "v2":-3},
{"year":"1965", "v1":0, "v2":-10},
{"year":"1966", "v1":0.7, "v2":-48},
{"year":"1967", "v1":0.2, "v2":22},
{"year":"1968", "v1":1.1, "v2":-22},
{"year":"1969", "v1":-0.2, "v2":-49},
{"year":"1970", "v1":1.5, "v2":-2},
{"year":"1971", "v1":-0.3, "v2":-37},
{"year":"1972", "v1":1, "v2":-44},
{"year":"1973", "v1":-0.4, "v2":18},
{"year":"1974", "v1":1.2, "v2":-17},
{"year":"1975", "v1":-0.3, "v2":-33},
{"year":"1976", "v1":0.6, "v2":-45},
{"year":"1977", "v1":-0.2, "v2":2},
{"year":"1978", "v1":0.5, "v2":18},
{"year":"1979", "v1":-0.3, "v2":-24},
{"year":"1980", "v1":0.5, "v2":14},
{"year":"1981", "v1":-0.5, "v2":-28},
{"year":"1982", "v1":0.7, "v2":-6},
{"year":"1983", "v1":1.1, "v2":-1},
{"year":"1984", "v1":0.9, "v2":-26},
{"year":"1985", "v1":0.8, "v2":0},
{"year":"1986", "v1":1.5, "v2":-27},
{"year":"1987", "v1":1.4, "v2":26},
{"year":"1988", "v1":-0.5, "v2":26},
{"year":"1989", "v1":0.8, "v2":-45},
{"year":"1990", "v1":0.3, "v2":-23},
{"year":"1991", "v1":1.2, "v2":-21},
{"year":"1992", "v1":-0.2, "v2":-31},
{"year":"1993", "v1":0.8, "v2":-12},
{"year":"1994", "v1":0.3, "v2":-35},
{"year":"1995", "v1":1.1, "v2":-1},
{"year":"1996", "v1":0.9, "v2":-14},
{"year":"1997", "v1":-0.1, "v2":11},
{"year":"1998", "v1":1.1, "v2":-29},
{"year":"1999", "v1":-0.2, "v2":11},
{"year":"2000", "v1":-0.4, "v2":-18},
{"year":"2001", "v1":0.6, "v2":-12},
{"year":"2002", "v1":1.5, "v2":-3},
{"year":"2003", "v1":0.6, "v2":-47},
{"year":"2004", "v1":1.5, "v2":-43},
{"year":"2005", "v1":0.1, "v2":-18},
{"year":"2006", "v1":0, "v2":7},
{"year":"2007", "v1":0.5, "v2":-25},
{"year":"2008", "v1":1.5, "v2":-50},
{"year":"2009", "v1":0.4, "v2":28},
{"year":"2010", "v1":0.7, "v2":25},
{"year":"2011", "v1":0.4, "v2":-16},
{"year":"2012", "v1":-0.2, "v2":5},
{"year":"2013", "v1":0.2, "v2":-17},
{"year":"2014", "v1":-0.5, "v2":-22}
];
AmCharts.ready(function() {
// SERIAL CHART
chart = new AmCharts.AmSerialChart();
chart.pathToImages = "../amcharts/images/";
chart.dataProvider = chartData;
chart.marginLeft = 10;
chart.categoryField = "year";
chart.dataDateFormat = "YYYY";
chart.addListener("dataUpdated", zoomChart);
// AXES
// category
var categoryAxis = chart.categoryAxis;
categoryAxis.parseDates = true;
categoryAxis.minPeriod = "YYYY";
categoryAxis.dashLength = 3;
categoryAxis.minorGridEnabled = true;
categoryAxis.minorGridAlpha = 0.1;
// value
var valueAxis = new AmCharts.ValueAxis();
valueAxis.id = "ax1";
valueAxis.axisAlpha = 0;
valueAxis.inside = true;
valueAxis.dashLength = 3;
valueAxis.position = "right";
chart.addValueAxis(valueAxis);
var valueAxis2 = new AmCharts.ValueAxis();
valueAxis2.id = "ax2";
valueAxis2.axisAlpha = 0;
valueAxis2.inside = true;
valueAxis2.dashLength = 3;
valueAxis2.baseValue = -20;
valueAxis2.position = "left";
chart.addValueAxis(valueAxis2);
// GRAPH
graph = new AmCharts.AmGraph();
graph.valueaxis = "ax1";
graph.type = "smoothedLine";
graph.lineColor = "#d1655d";
graph.negativeLineColor = "#637bb6";
graph.bullet = "square";
graph.bulletSize = 8;
graph.bulletBorderColor = "#FFFFFF";
graph.bulletBorderAlpha = 1;
graph.bulletBorderThickness = 2;
graph.lineThickness = 2;
graph.valueField = "v1";
graph.title = "title v1";
graph.balloonText = "[[category]]<br><b><span style='font-size:14px;'>[[value]]</span></b>";
chart.addGraph(graph);
graph2 = new AmCharts.AmGraph();
graph2.valueaxis = "ax2";
graph2.type = "smoothedLine";
graph2.lineColor = "#d1655d";
graph2.negativeLineColor = "#637bb6";
graph2.bullet = "round";
graph2.bulletSize = 8;
graph2.bulletBorderColor = "#FFFFFF";
graph2.bulletBorderAlpha = 1;
graph2.bulletBorderThickness = 2;
graph2.lineThickness = 2;
graph2.valueField = "v2";
graph2.title = "title v2";
graph2.balloonText = "[[category]]<br><b><span style='font-size:14px;'>[[value]]</span></b>";
chart.addGraph(graph2);
// CURSOR
var chartCursor = new AmCharts.ChartCursor();
chartCursor.cursorAlpha = 0;
chartCursor.cursorPosition = "mouse";
chartCursor.categoryBalloonDateFormat = "YYYY";
chart.addChartCursor(chartCursor);
// SCROLLBAR
var chartScrollbar = new AmCharts.ChartScrollbar();
chart.addChartScrollbar(chartScrollbar);
chart.creditsPosition = "bottom-right";
// WRITE
chart.write("chartdiv");
});
有人嗎？如何克服這一點？