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Annotations In Column Charts (Code Based Learning By RichNet) Google Charts
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'annotations" : { | |
//Annotations to be placed outside the bars (boolean) | |
"alwaysOutside" : true / false, | |
//Boxes Surrounding the annotations | |
"boxStyle" : { | |
//Color of the box outline | |
"stroke" : "#COLORCODE", | |
//Thickness of the box outline | |
"strokWidth" : NUMBER, | |
//x-radius of the corner curvature | |
"rx" : NUMBER, | |
//y-radius of the corner curvature | |
"ry" : NUMBER, | |
// Attributes for linear gradient fill. | |
"gradient": { | |
// Start color for gradient. | |
"color1": '#fbf6a7', | |
// Finish color for gradient. | |
"color2": '#33b679', | |
// Where on the boundary to start and | |
// end the color1/color2 gradient, | |
// relative to the upper left corner | |
// of the boundary. | |
"x1": '0%', "y1": '0%', | |
"x2": '100%', "y2": '100%', // If true, the boundary for x1, | |
// y1, x2, and y2 is the box. If | |
// false, it's the entire chart. | |
"useObjectBoundingBoxUnits": true | |
}, | |
//Modify the style of the stem line of the annotation | |
"datum" : { | |
"stem" : { | |
"color" : "#0099fc", | |
"length" : NUMBER | |
} | |
}, | |
//Let the words look clear | |
"highContrast" : true / false, | |
"textStyle" : { | |
//Change the font family | |
"fontName" : "Font Family", | |
//Change font color | |
"color" : "#COLORCODE", | |
//Change font size | |
"fontSize" : NUMBER, | |
//Whether the font should be bold | |
"bold" : "true / false", | |
//Whether the font should be italic | |
"italic" : "true / false", | |
//Color of the text outline | |
"auraColor" : "#COLORCODE", | |
//Transparency of the text | |
"opacity" : 0-1 | |
} | |
} | |
} |
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<html> | |
<head> | |
<link href="/css/w3.css" rel="stylesheet" /> | |
<link href="/css/print.min.css" rel="stylesheet" /> | |
<script> | |
//Declaring Global Variables | |
var GV, CHT, DT, OPT; | |
function drawChart(){ | |
GV = google.visualization; | |
//Create DataTable Object | |
DT = new GV.DataTable(); | |
//Add Two Columns | |
DT.addColumn({ | |
type : "string", | |
label : "SUBJECTS" | |
}); | |
DT.addColumn({ | |
type : "number", | |
label : "MARKS" | |
}); | |
//Column for annotation | |
DT.addColumn({ | |
type : "string", | |
label : "MARKS", | |
role : "annotation" | |
}); | |
//Add Multiple Rows | |
DT.addRows( [ | |
[ "Physics", 88, "Great" ], | |
[ "Chemistry", 65, "Hate it" ], | |
[ "Mathematics", 96, "Love It" ], | |
[ "Computer", 99, "My Life" ], | |
[ "English", 89, "Like It" ], | |
[ "Arabic", 98, "Wow" ] | |
] ); | |
//Create Options | |
OPT = { | |
title : "MARKS REPORT", | |
legend : "bottom", | |
height : 400, | |
//Modify Default Config For Annotations | |
annotations : { | |
//Annotation to be placed outside the bars | |
alwaysOutside : true, | |
highContrast : true, | |
datum : { | |
stem : { | |
color : "#0099fc", | |
length : 20 | |
} | |
}, | |
textStyle : { | |
fontName : 'Oswald', | |
color : "#454545", | |
auraColor : "#fcfcfc" | |
} | |
} | |
}; | |
//Create a Column chart and assign a DIV element via ID | |
CHT = new GV.ColumnChart( document.getElementById("MY_CHART") ); | |
//Draw the Chart by passing DT (DataTable) and OPT (Options) | |
CHT.draw( DT, OPT ); | |
} | |
</script> | |
<script src="https://www.gstatic.com/charts/loader.js"></script> | |
<script> | |
//Load the core chart library | |
google.charts.load( "current", { packages : ["corechart"] } ); | |
//Assign a callback function to be executed when corechart loads successfully | |
google.charts.setOnLoadCallback( drawChart ); | |
</script> | |
<script src="/js/jq.js"></script> | |
<script src="/js/print.min.js"></script> | |
<script> | |
//Attach Event to the Print Button | |
$(document).on( "click", "#PRINT_BTN", function(){ | |
//Get Chart Image URI ( Base64 ) | |
var IMG_URI = CHT.getImageURI(); | |
//Pass the Base64 content to the PrintJS library function to print it | |
printJS({ | |
printable : IMG_URI, | |
type : "image", | |
header : "ANNOTATIONS IN COLUM CHART" | |
}); | |
} ); | |
</script> | |
</head> | |
<body> | |
<div id="MY_CHART" class="w3-white" style="width:100%;height:400px"></div> | |
<br/> | |
<button class="w3-button w3-white w3-round-small w3-right" id="PRINT_BTN"> | |
Print Chart 🖶 | |
</button> | |
</body> | |
</html> |
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