gojs
Version:
Interactive diagrams, charts, and graphs, such as trees, flowcharts, orgcharts, UML, BPMN, or business diagrams
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HTML
<html>
<head>
<meta charset="UTF-8">
<title>Thermometer</title>
<meta name="description" content="A thermometer." />
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- Copyright 1998-2019 by Northwoods Software Corporation. -->
<script src="../release/go.js"></script>
<script src="../assets/js/goSamples.js"></script> <!-- this is only for the GoJS Samples framework -->
<script id="code">
function init() {
if (window.goSamples) goSamples(); // init for these samples -- you don"t need to call this
var $ = go.GraphObject.make; // for conciseness in defining templates
myDiagram = $(go.Diagram, "myDiagramDiv", // create a Diagram for the DIV HTML element
{
layout: $(go.GridLayout, { isOngoing: false, wrappingColumn: 4 }),
"animationManager.isEnabled": false,
"undoManager.isEnabled": true // enable undo & redo
});
// ResizingTool customization: add just one handle, instead of eight
myDiagram.toolManager.resizingTool.makeAdornment = function(resizeObj) {
var adornment = null;
adornment = new go.Adornment();
adornment.type = go.Panel.Spot;
adornment.locationSpot = go.Spot.Center;
var surrogate = new go.Placeholder();
surrogate.isPanelMain = true;
adornment.add(surrogate);
adornment.add(this.makeHandle(resizeObj, go.Spot.MiddleTop));
adornment.category = this.name;
adornment.adornedObject = resizeObj;
return adornment;
}
var ORIGINAL_HEIGHT = 400;
/* The thermometer node consists of a Spot Panel with 6 children:
0: The BarSpace, which is the main element and
1: The Farenheit scale, on the left
2: The Celsius scale, on the right
3: The shape that represents mercury in the thermometer
4: (Cosmetic) The stem that attaches to the bulb
5: (Cosmetic) The bulb
The two Graduated Panels use alignmentFocusName to make sure their main Shapes
line up with the Spot Panel"s main element, BarSpace.
1|0|2
1|0|2
1|0|2
1|0|2
1|3|2
1|3|2
|4|
|5|
*/
myDiagram.nodeTemplate =
$(go.Node, "Spot",
{ resizable: true, resizeObjectName: "BarSpace", locationObjectName: "Bulb", locationSpot: go.Spot.Center },
$(go.Shape,
{ name: "BarSpace", width: 25, height: ORIGINAL_HEIGHT, strokeWidth: 0, fill: "rgba(0,0,0,.05)" },
new go.Binding("height").makeTwoWay()
),
// Farenheit scale, on the left:
$(go.Panel, "Graduated",
{
background: "white",
graduatedMin: -40, graduatedMax: 80,
graduatedTickBase: 0, graduatedTickUnit: 1,
alignment: go.Spot.BottomLeft,
alignmentFocus: go.Spot.BottomLeft,
alignmentFocusName: "line"
},
new go.Binding("graduatedMax", "", function(data) {
if (data.type === "scaling") return 80;
return (data.height * 0.3) - 40;
}),
$(go.Shape, { name: "line", geometryString: "M0 0 V-" + ORIGINAL_HEIGHT, stroke: "gray" },
new go.Binding("height")),
$(go.Shape, { alignmentFocus: go.Spot.Bottom, interval: 2, strokeWidth: 1, geometryString: "M0 0 V15" }),
$(go.Shape, { alignmentFocus: go.Spot.Bottom, interval: 10, strokeWidth: 2, geometryString: "M0 0 V20" }),
$(go.TextBlock, { interval: 20, font: "22px Georgia", alignmentFocus: new go.Spot(1, 0.5, 20, 0) }),
// Mark 32 degrees on the farenheit scale:
$(go.TextBlock, {
interval: 32, graduatedFunction: function(n) { return n === 32 ? "32—" : "" },
font: "bold 12px Georgia", stroke: "red", alignmentFocus: new go.Spot(1, 0.5, 20, 0)
})
),
// Mercury bar, which represents the values of farenheit and celsius
$(go.Shape,
{
width: 25, strokeWidth: 0, fill: "red",
alignment: go.Spot.Bottom,
alignmentFocus: go.Spot.Bottom,
},
new go.Binding('fill', 'type', function(t) { return t === "scaling" ? "lightcoral" : "red" }),
// To determine the mercury level, look at both data.farenheit and data.celsius, but prefer celsius
new go.Binding("height", "", function(data) {
var thermometerHeight = ORIGINAL_HEIGHT;
if (data.type === "scaling") thermometerHeight = data.height;
if (data.celsius !== undefined) {
// (celsius + minimum value) / (total celsius range) * height
return Math.max(0, ((data.celsius + 40) / 67) * thermometerHeight);
} else if (data.farenheit !== undefined) {
// (farenheit + minimum value) / (total farenheit range) * height
return Math.max(0, ((data.farenheit + 40) / 120) * thermometerHeight);
} else {
return 0;
}
}
),
new go.Binding("maxSize", "height", function(h) { return new go.Size(NaN, h) })
),
// Celsius scale, on the right:
$(go.Panel, "Graduated",
{
background: "white",
// -40 to 27 because we picked -40 to 80 for farenheit, and want them to line up
graduatedMin: -40, graduatedMax: 27,
graduatedTickBase: 0, graduatedTickUnit: 1,
alignment: go.Spot.BottomRight,
alignmentFocus: go.Spot.BottomRight,
alignmentFocusName: "line2"
},
new go.Binding("graduatedMax", "", function(data) {
if (data.type === "scaling") return 27;
return (data.height * 0.1675) - 40;
}),
$(go.Shape, { name: "line2", geometryString: "M0 0 V-" + ORIGINAL_HEIGHT, stroke: "gray" },
new go.Binding("height")),
$(go.Shape, { interval: 2, strokeWidth: 1, geometryString: "M0 0 V15" }),
$(go.Shape, { interval: 10, strokeWidth: 2, geometryString: "M0 0 V20" }),
$(go.TextBlock, {
interval: 20, textAlign: "left", font: "22px Georgia",
alignmentFocus: go.Spot.Left, segmentOffset: new go.Point(0, 22)
})
),
// Cosmetic: The stem and bulb
$(go.Shape,
{
width: 25, height: 10, strokeWidth: 0, fill: "red",
alignment: go.Spot.Bottom
},
new go.Binding('fill', 'type', function(t) { return t === "scaling" ? "lightcoral" : "red" })
),
$(go.Shape, "Circle",
{
name: "Bulb",
width: 55, height: 55, strokeWidth: 0, fill: "red",
alignment: go.Spot.Bottom,
alignmentFocus: go.Spot.Top,
},
new go.Binding('fill', 'type', function(t) { return t === "scaling" ? "lightcoral" : "red" })
)
); // end node template
myDiagram.model = new go.GraphLinksModel(
[
{ height: 400, celsius: 20 },
{ height: 250, celsius: -10 },
{ type: "scaling", height: 400, farenheit: 22 /*, celsius: 0*/ },
{ type: "scaling", height: 250, farenheit: 68 /*, celsius: 20*/ },
]);
}
</script>
</head>
<body onload="init()">
<div id="sample">
<!-- The DIV for the Diagram needs an explicit size or else we won"t see anything.
This also adds a border to help see the edges of the viewport. -->
<div id="myDiagramDiv" style="border: solid 1px black; width:800px; height:500px"></div>
<p>
This sample uses <a href="../intro/graduatedPanels.html">Graduated Panels</a> and <code>Panel.alignmentFocusName</code> to line up thermometer scales.
</p>
<p>
The thermometers are resizable, with two types. For the first two (default), resizing the thermometer reduces
or increases the range of the values. For the second two (<code>type: "scaling"</code>), resizing
the thermometer keeps the range, and scales the thermometer.
</p>
</div>
</body>
</html>