我正在使用3D的amcharts（即depth3D = 40），图表显示良好，但类别轴与值轴重叠/合并
我正在使用类似这样的东西：
var chart = AmCharts.makeChart("chartdiv", {
"type": "serial",
"theme": "light",
"startDuration": 1,
"valueAxes": [{
"id": "v1",
"title": "Cost (in USD)",
"position": "left",
"autoGridCount": false,
"labelFunction": function(value) {
return "$" + Math.round(value);
}
}, {
"id": "v2",
"title": "Effort ( hh:mm )",
"gridAlpha": 0,
"position": "right",
"autoGridCount": false,
"duration": "mm",
"durationUnits": {
"hh": "h ",
"mm": "min"
}
}],
---------------------
---------------------
"depth3D": 40,
"angle": 10,
"chartCursor": {
"pan": true,
"cursorPosition": "mouse",
"cursorAlpha": 0.1,
"cursorColor": "#000000",
"fullWidth": true,
"valueLineAlpha": 0.2
},
"categoryField": "lob",
"categoryAxis": {
"gridPosition": "start",
"axisAlpha":0.9,
"axisThickness": 1,
"axisColor": "black",
"gridAlpha":0,
"labelRotation":25,
"fontSize":10,
"boldLabels":true
},
这是我的 fiddle
这是值轴（红色）与类别轴合并/混合。
任何避免轴合并/重叠的建议将不胜感激！
答案 0 :(得分：1)
使用angle / depth3D启用3D后，图表透视图将移动。您看到的红线是值轴线的一部分，由于新的透视图而延伸到3D空间中，因此这是设计使然；请注意，如果您沿相反的方向设置角度，则另一根轴也会这样做。结果，没有办法使用配置删除它。作为一种技巧，您可以尝试通过drawn事件直接编辑SVG，方法是查询axis line by class/id设置为true的addClassNames并修改d属性：
function remove3DSegment() {
var line = document.querySelector('.value-axis-v2 .amcharts-axis-line');
var lineSVG = line.getAttribute('d');
line.setAttribute('d', lineSVG.substr(0, lineSVG.lastIndexOf(' '))); //last part of the SVG path command contains the 3D segment on the bottom
}
var chart = AmCharts.makeChart("chartdiv", {
"type": "serial",
"theme": "light",
"startDuration": 1,
"addClassNames": true,
// ...
"listeners": [{
"event": "drawn",
"method": remove3DSegment
}],
// ...
});
如果要对其进行概括，可以让该函数通过事件查找图表的ID和值轴的ID。
function remove3DSegment(e) {
var divId = e.chart.div.id;
var valueAxisId = e.chart.valueAxes[1].id; //assumes your second axis is the one that needs to be modified.
var line = document.querySelector('#' + divId + ' .value-axis-' + valueAxisId + ' .amcharts-axis-line');
var lineSVG = line.getAttribute('d');
line.setAttribute('d', lineSVG.substr(0, lineSVG.lastIndexOf(' '))); //last part of the SVG path command contains the 3D segment on the bottom
}
请注意，这是一个技巧，如果在以后的v3版本中更改了用于绘制轴的SVG路径命令，则可能会中断。
function remove3DSegment() {
var line = document.querySelector('.value-axis-v2 .amcharts-axis-line');
var lineSVG = line.getAttribute('d');
line.setAttribute('d', lineSVG.substr(0, lineSVG.lastIndexOf(' ')));
}
var chart = AmCharts.makeChart("chartdiv", {
"type": "serial",
"theme": "light",
"startDuration": 1,
"addClassNames": true,
"valueAxes": [{
"id": "v1",
"title": "Cost (in USD)",
"position": "left",
"autoGridCount": false,
"labelFunction": function(value) {
return "$" + Math.round(value);
}
}, {
"id": "v2",
"title": "Effort ( hh:mm )",
"gridAlpha": 0,
"position": "right",
"axisAlpha": 0.9,
"axisThickness": 2,
"axisColor": "red",
}],
"graphs": [{
"id": "g4",
"valueAxis": "v1",
"lineColor": "#3B7610",
"fillColors": "#3B7610",
"fillAlphas": 1,
"type": "column",
"title": "Cost saving per year",
"valueField": "costSaving",
"clustered": false,
"columnWidth": 0.3,
"topRadius": 1,
// "legendValueText": "$[[value]]M",
"balloonText": "[[title]]<br /><b style='font-size: 90%'>$[[value]]M</b>"
}, {
"id": "g1",
"valueAxis": "v2",
"bullet": "round",
"bulletBorderAlpha": 1,
"bulletColor": "#FFFFFF",
"bulletSize": 5,
"hideBulletsCount": 50,
"lineThickness": 2,
"lineColor": "#20acd4",
"type": "smoothedLine",
"title": "Effort saving per year",
"topRadius": 0.95,
"useLineColorForBulletBorder": true,
"valueField": "effortSaving",
"balloonText": "[[title]]<br /><b style='font-size: 90%'>[[value]]</b>"
}],
"depth3D": 40,
"angle": 10,
"chartCursor": {
"pan": true,
"cursorPosition": "mouse",
"cursorAlpha": 0.1,
"cursorColor": "#000000",
"fullWidth": true,
"valueLineAlpha": 0.2
},
"categoryField": "lob",
"categoryAxis": {
"gridPosition": "start",
"axisAlpha": 0.9,
"axisThickness": 1,
"axisColor": "black",
"gridAlpha": 0,
"labelRotation": 25,
"fontSize": 10,
"boldLabels": true
},
"legend": {
"horizontalGap": 5,
"maxColumns": 30,
"useGraphSettings": true,
"markerSize": 10,
"leftMargin": 0,
"valueText": ""
},
"balloon": {
"borderThickness": 1,
"shadowAlpha": 0
},
"export": {
"enabled": true
},
"listeners": [{
"event": "drawn",
"method": remove3DSegment
}],
"dataProvider": [{
"lob": "abca",
"effortSaving": 64140,
"costSaving": 3600
}, {
"lob": "dfasdf",
"effortSaving": 326724,
"costSaving": 1875
}, {
"lob": "dfgsdfgt",
"effortSaving": 36864,
"costSaving": 1500,
}, {
"lob": "gfsdg",
"effortSaving": 101808,
"costSaving": 3614,
}, {
"lob": "fgfgf",
"effortSaving": 13200,
"costSaving": 6215,
}, {
"lob": "jytujty",
"effortSaving": 111312,
"costSaving": 3123,
}, {
"lob": "erqwr",
"effortSaving": 5040,
"costSaving": 1235,
}]
});#chartdiv {
width: 100%;
height: 500px;
}<script src="https://www.amcharts.com/lib/3/amcharts.js"></script>
<script src="https://www.amcharts.com/lib/3/serial.js"></script>
<script src="https://www.amcharts.com/lib/3/plugins/export/export.min.js"></script>
<link rel="stylesheet" href="https://www.amcharts.com/lib/3/plugins/export/export.css" type="text/css" media="all" />
<script src="https://www.amcharts.com/lib/3/pie.js"></script>
<script src="https://www.amcharts.com/lib/3/themes/light.js"></script>
<div id="chartdiv"></div>