Angularjs-nvd3-directives

directives for and

View the Project on GitHub cmaurer/angularjs-nvd3-directives

Creating and Configuring a SparkLine Chart

Overview

A sparkline is a small intense, simple, word-sized graphic with typographic resolution. Sparklines mean that graphics are no longer cartoonish special occasions with captions and boxes, but rather sparkline graphic can be everywhere a word or number can be: embedded in a sentence, table, headline, map, spreadsheet, graphic.

– Edward Tufte

From Edward Tufte’s book Beautiful Evidence.

Additional Resources

wikipedia

Edward Tufte

Stphen Few

How to create a basic chart

Include angularjs-nvd3-directives.js in your HTML file.

<script src="dist/angularjs-nvd3-directives.js"></script>

Include other dependencies for nvd3.js and d3.js.

<script src="../build/components/d3/d3.js"></script>
<script src="../build/components/nvd3/nv.d3.js"></script>
<link rel="stylesheet" href="path/to/nv.d3.css"/>

In the Angular App, include nvd3ChartDirectives as a dependency.

var app = angular.module("nvd3TestApp", ['nvd3ChartDirectives']);

Create an Angular.js Controller, and assign json data to a scope variable.

1 function ExampleCtrl($scope){
2     $scope.exampleData = [ [ 1025409600000 , 0] , [ 1028088000000 , -6.3382185140371] , [ 1030766400000 , -5.9507873460847] , [ 1033358400000 , -11.569146943813] , [ 1036040400000 , -5.4767332317425] , [ 1038632400000 , 0.50794682203014] , [ 1041310800000 , -5.5310285460542] , [ 1043989200000 , -5.7838296963382] , [ 1046408400000 , -7.3249341615649] , [ 1049086800000 , -6.7078630712489] , [ 1051675200000 , 0.44227126150934] , [ 1054353600000 , 7.2481659343222] , [ 1056945600000 , 9.2512381306992] , [ 1059624000000 , 11.341210982529] , [ 1062302400000 , 14.734820409020] , [ 1064894400000 , 12.387148007542] , [ 1067576400000 , 18.436471461827] , [ 1070168400000 , 19.830742266977] , [ 1072846800000 , 22.643205829887] , [ 1075525200000 , 26.743156781239] , [ 1078030800000 , 29.597478802228] , [ 1080709200000 , 30.831697585341] , [ 1083297600000 , 28.054068024708] , [ 1085976000000 , 29.294079423832] , [ 1088568000000 , 30.269264061274] , [ 1091246400000 , 24.934526898906] , [ 1093924800000 , 24.265982759406] , [ 1096516800000 , 27.217794897473] , [ 1099195200000 , 30.802601992077] , [ 1101790800000 , 36.331003758254] , [ 1104469200000 , 43.142498700060] , [ 1107147600000 , 40.558263931958] , [ 1109566800000 , 42.543622385800] , [ 1112245200000 , 41.683584710331] , [ 1114833600000 , 36.375367302328] , [ 1117512000000 , 40.719688980730] , [ 1120104000000 , 43.897963036919] , [ 1122782400000 , 49.797033975368] , [ 1125460800000 , 47.085993935989] , [ 1128052800000 , 46.601972859745] , [ 1130734800000 , 41.567784572762] , [ 1133326800000 , 47.296923737245] , [ 1136005200000 , 47.642969612080] , [ 1138683600000 , 50.781515820954] , [ 1141102800000 , 52.600229204305] , [ 1143781200000 , 55.599684490628] , [ 1146369600000 , 57.920388436633] , [ 1149048000000 , 53.503593218971] , [ 1151640000000 , 53.522973979964] , [ 1154318400000 , 49.846822298548] , [ 1156996800000 , 54.721341614650] , [ 1159588800000 , 58.186236223191] , [ 1162270800000 , 63.908065540997] , [ 1164862800000 , 69.767285129367] , [ 1167541200000 , 72.534013373592] , [ 1170219600000 , 77.991819436573] , [ 1172638800000 , 78.143584404990] , [ 1175313600000 , 83.702398665233] , [ 1177905600000 , 91.140859312418] , [ 1180584000000 , 98.590960607028] , [ 1183176000000 , 96.245634754228] , [ 1185854400000 , 92.326364432615] , [ 1188532800000 , 97.068765332230] , [ 1191124800000 , 105.81025556260] , [ 1193803200000 , 114.38348777791] , [ 1196398800000 , 103.59604949810] , [ 1199077200000 , 101.72488429307] , [ 1201755600000 , 89.840147735028] , [ 1204261200000 , 86.963597532664] , [ 1206936000000 , 84.075505208491] , [ 1209528000000 , 93.170105645831] , [ 1212206400000 , 103.62838083121] , [ 1214798400000 , 87.458241365091] , [ 1217476800000 , 85.808374141319] , [ 1220155200000 , 93.158054469193] , [ 1222747200000 , 65.973252382360] , [ 1225425600000 , 44.580686638224] , [ 1228021200000 , 36.418977140128] , [ 1230699600000 , 38.727678144761] , [ 1233378000000 , 36.692674173387] , [ 1235797200000 , 30.033022809480] , [ 1238472000000 , 36.707532162718] , [ 1241064000000 , 52.191457688389] , [ 1243742400000 , 56.357883979735] , [ 1246334400000 , 57.629002180305] , [ 1249012800000 , 66.650985790166] , [ 1251691200000 , 70.839243432186] , [ 1254283200000 , 78.731998491499] , [ 1256961600000 , 72.375528540349] , [ 1259557200000 , 81.738387881630] , [ 1262235600000 , 87.539792394232] , [ 1264914000000 , 84.320762662273] , [ 1267333200000 , 90.621278391889] , [ 1270008000000 , 102.47144881651] , [ 1272600000000 , 102.79320353429] , [ 1275278400000 , 90.529736050479] , [ 1277870400000 , 76.580859994531] , [ 1280548800000 , 86.548979376972] , [ 1283227200000 , 81.879653334089] , [ 1285819200000 , 101.72550015956] , [ 1288497600000 , 107.97964852260] , [ 1291093200000 , 106.16240630785] , [ 1293771600000 , 114.84268599533] , [ 1296450000000 , 121.60793322282] , [ 1298869200000 , 133.41437346605] , [ 1301544000000 , 125.46646042904] , [ 1304136000000 , 129.76784954301] , [ 1306814400000 , 128.15798861044] , [ 1309406400000 , 121.92388706072] , [ 1312084800000 , 116.70036100870] , [ 1314763200000 , 88.367701837033] , [ 1317355200000 , 59.159665765725] , [ 1320033600000 , 79.793568139753] , [ 1322629200000 , 75.903834028417] , [ 1325307600000 , 72.704218209157] , [ 1327986000000 , 84.936990804097] , [ 1330491600000 , 93.388148670744]];
3 }

Include the chart directive in HTML. The data html attribute should point to the scope variable (exampleData). Other directive attributes should be the same as the public attributes associated with each chart.

<div ng-controller="ExampleCtrl">
	<nvd3-sparkline-chart
    	data="exampleData"
        id="exampleId"
        width="550"
        height="150"
        margin="{left:40, top:40, bottom:40, right:100}"
        x="xFunction()"
        y="yFunction()">
        	<svg></svg>
    </nvd3-sparkline-chart>
</div>

Configuration Options

ID

Identifier for the chart. Utilized heavily by d3.js and nvd3.js when creating and updating charts. If there is more than one chart on a page, every chart should have a unique id. Datatype: String

Width

Controls the display width of the chart. Datatype: Number

Height

Controls the display height of the chart. Datatype: Number

Margin

Controls the external margin of the chart.

Datatype: Object, Number: {left:0,top:0,bottom:0,right:0}

Color

Controls the colors of the chart elements.

Datatype: Function

The function is the same as the d3.js color functions. Refer to d3.js Colors for d3.js color-specific documentation.

To use a configuration function, create a function on the $scope (i.e. $scope.colorFunction). The function can be named anything, as long as it does not conflict with an existing function name. To ‘connect’ the $scope function with the chart.color() function, add a color=”” attribute to the directive, with the value of the attribute being the name of the $scope function (i.e. scope=”colorFunction()”).

$scope.colorFunction = function() {
	return function(d, i) {
    	return '#E01B5D'
    };
}
<div ng-controller="ExampleCtrl">
	<nvd3-sparkline-chart
    	data="exampleData"
        id="colorExample"
        width="550"
        height="150"
        margin="{left:40, top:40, bottom:40, right:100}"
        x="xFunction()"
        y="yFunction()"
        color="colorFunction()">
        	<svg></svg>
    </nvd3-sparkline-chart>
</div>

No Data

Defines the message displayed when data is not available.

Datatype: String

<div ng-controller="ExampleCtrl">
	<nvd3-sparkline-chart
    	data="noDataData"
        id="noDataExample"
        width="550"
        height="150"
        margin="{left:40, top:40, bottom:40, right:100}"
        x="xFunction()"
        y="yFunction()"
        noData="No Data for You!">
        	<svg></svg>
    </nvd3-sparkline-chart>
</div>

X

Function that allows nvd3.js and d3.js to access x values from the ‘data’.

Datatype: Function

$scope.xFunction = function(){
	return function(d){
		return d[0];
	};
}
<div ng-controller="ExampleCtrl">
	<nvd3-sparkline-chart
    	data="exampleData"
        id="xExample"
        width="550"
        height="150"
        margin="{left:40, top:40, bottom:40, right:100}"
        x="xFunction()"
        y="yFunction()">
        	<svg></svg>
    </nvd3-sparkline-chart>
</div>

Y

Function that allows nvd3 and d3 to access y values from the ‘data’.

Datatype: Function

$scope.yFunction = function(){
	return function(d){
		return d[1];
	};
}
<div ng-controller="ExampleCtrl">
	<nvd3-sparkline-chart
    	data="exampleData"
        id="yExample"
        width="550"
        height="150"
        margin="{left:40, top:40, bottom:40, right:100}"
        x="xFunction()"
        y="yFunction()">
        	<svg></svg>
    </nvd3-sparkline-chart>
</div>

Show Value

Enables or disables the display of the value. Defaults to true (show value).

Datatype: Boolean

<div ng-controller="ExampleCtrl">
	<nvd3-sparkline-chart
    	data="exampleData"
        id="showValueExample"
        width="550"
        height="150"
        margin="{left:40, top:40, bottom:40, right:100}"
        x="xFunction()"
        y="yFunction()"
        showValue="false">
        	<svg></svg>
    </nvd3-sparkline-chart>
</div>

Align Value

Enables or disables aligning the value to the last datapoint. Default is true, align to the datapoint.

Datatype: Boolean

<div ng-controller="ExampleCtrl">
	<nvd3-sparkline-chart
    	data="exampleData"
        id="alignValueExample"
        width="550"
        height="150"
        margin="{left:40, top:40, bottom:40, right:100}"
        x="xFunction()"
        y="yFunction()"
        alignValue="false">
        	<svg></svg>
    </nvd3-sparkline-chart>
</div>

Right Align Value

Enables or disables aligning the value on the right or left side of the Y axis. Default is false, left align.

<div ng-controller="ExampleCtrl">
	<nvd3-sparkline-chart
    	data="exampleData"
        id="rightAlignValueExample"
        width="550"
        height="150"
        margin="{left:40, top:40, bottom:40, right:150}"
        x="xFunction()"
        y="yFunction()"
        rightAlignValue="true">
        	<svg></svg>
    </nvd3-sparkline-chart>
</div>