Viewer 2D API

Getting started

The Viewer 2D API allows to embed a 2D viewer in your web applications.

Dependencies

Bimsync Viewer 2D requires jQuery 1.x to run.

Initialize

The Viewer 2D API can be automatically initialized by using the DOM data API or manually initialized in JavaScript.

Note In the example below, nothing will be displayed until you use the showStorey

Note If you are using the Viewer 3D API and want a predefined 2D/3D integration you can use our Viewer Widget API.

DOM Data API

<script src="https://api.catenda.com/js/v1/viewer2d"></script>

<div id="viewer-2d" data-viewer2d="svg" data-url="https://api.catenda.com/v2/projects/dabc6df.../viewer2d/geometry?token=410c0aa7..."></div>

<!DOCTYPE html>
<html style="height: 100%;">
    <head>
        <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
        <script src="https://api.catenda.com/js/v1/viewer2d"></script>
    </head>
    <body style="height: 100%;">
        <script type="text/javascript">
            $(function(){
                var $viewer2d = $('#viewer-2d');
                $viewer2d.bind('loaded', function(event) {
                    var storeys = $viewer2d.viewer2d('getStoreys');
                    $.each(storeys, function(i, storey) {
                        console.log(storey.name, storey.id);
                    });
                    var storeyByElevation = $viewer2d.viewer2d('getStoreyByElevation', 3.2);
                    $viewer2d.viewer2d('showStorey', storeyByElevation.id);
                });
            });
        </script>
        <div id="viewer-2d" data-viewer2d="svg" data-url="https://api.catenda.com/v2/projects/dabc6df.../viewer2d/geometry?token=410c0aa7..." style="height: 100%; width:100%;"></div>
    </body>
</html>

Create a viewer access token by using the POST v2/projects/:project/viewer2d/token described in the Bimsync REST API.
Add the Viewer 2D framework to you application.
Create a Viewer 2D element. The data attribute data-viewer2d="svg" must be included. The data attribute data-url must be the url field from a viewer access token.

JavaScript

Create a viewer access token by using the POST v2/projects/:project/viewer2d/token described in the Bimsync REST API.
Create a DIV element which will contain the 2D-viewer.

<div id="viewer-2d"></div>

Follow the pattern in the snippet below to initialize:

<script src="https://api.catenda.com/js/v1/viewer2d"></script>
<script type="text/javascript">
    // Load the Viewer 2D API
    bimsync.loadViewer2d();

    // Set a callback to run when the Viewer API is loaded
    bimsync.setOnViewer2dLoadCallback(createViewer2d);

    // Callback that loads a viewer access token URL
    function createViewer2d() {
        $('#viewer-2d').viewer2d('loadUrl', 'https://api.catenda.com/v2/projects/dabc6df.../viewer2d/geometry?token=410c0aa7...');
    }
</script>

<!DOCTYPE html>
<html style="height: 100%;">
    <head>
        <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
        <script src="https://api.catenda.com/js/v1/viewer2d"></script>
    </head>
    <body style="height: 100%;">
        <script type="text/javascript">
            $(function(){
                var viewer2dUrl = "https://api.catenda.com/v2/projects/dabc6df.../viewer2d/geometry?token=410c0aa7...";
                var $viewer2d = $('#viewer-2d');

                bimsync.loadViewer2d();

                bimsync.setOnViewer2dLoadCallback(function() {
                    $viewer2d.viewer2d('loadUrl', viewer2dUrl);
                });

                $viewer2d.bind('loaded', function(event) {
                    var storeys = $viewer2d.viewer2d('getStoreys');
                    $.each(storeys, function(i, storey) {
                        console.log(storey.name, storey.id);
                    });
                    var storeyByElevation = $viewer2d.viewer2d('getStoreyByElevation', 3.2);
                    $viewer2d.viewer2d('showStorey', storeyByElevation.id);
                });
            });
        </script>
        <div id="viewer-2d" style="height: 100%; width:100%;"></div>
    </body>
</html>

Options

All options can be set using data attributes on the viewer element, or passed as an object when initializing with JavaScript.

var options = {
    showViewpoint: Boolean       // Set the viewpoint to be hidden or visible, default is true
    selectColor: String          // Set the color of selected objects, default is '#A7F555'
};

$('#viewer-2d').viewer2d({
    showViewpoint: true,
    selectColor: 'RoyalBlue'
});
$('#viewer-2d').viewer2d('loadUrl', 'https://api.catenda.com/v2/projects/dabc6df.../viewer2d/geometry?token=410c0aa7...');

<div id="viewer-2d" data-viewer2d="svg" data-enable-viewpoint="true"
     data-url="https://api.catenda.com/v2/projects/dabc6df.../viewer2d/geometry?token=410c0aa7...">
</div>

Methods

All methods are invoked by calling the method viewer2d on the result of a jQuery/$ function call. The first argument to the viewer2d method must be the method name.

addImage

$('#viewer-2d').viewer2d('addImage',{
    url: 'https://cdn.pixabay.com/photo/2016/08/25/07/30/red-1618916_1280.png',
    x: 20,
    y: 30,
    width: 1.45,
    height: 0.34
});

Adds an image to specified location.

Parameters:

object
- id - string - (optional, autogenerated if not present)
- url - string
- x - double
- y - double
- width - double
- height - double
- rotate - boolean - (optional, when present it rotates the image if the model rotates)

addMarker

var id = $('#viewer-2d').viewer2d('addMarker', {
    id: 'P325',
    x:1.45,
    y:0.34,
    color: '#aaaaaa',
    text: 'Test',
    data: { owner: 'Jan Erik' },
    clickable: true,
    draggable: false
});

Add a marker to specific location.

Properties

Name	Type	Description
marker	MarkerParams	The parameters to add a new Marker

Returns

Type	Description
string	The id of the new Marker

clearColors

$('#viewer-2d').viewer2d('clearColors');

Clear colors on all objects.

clearImages

$('#viewer-2d').viewer2d('clearImages');

Clear all images.

clearMarkers

$('#viewer-2d').viewer2d('clearMarkers');

Clear all markers.

getBoundingBox

$('#viewer-2d').viewer2d('getBoundingBox', '123456');
$('#viewer-2d').viewer2d('getBoundingBox', ['123456', '234567']);

Get bounding box for a set of objects. Currently only spaces are supported.

Parameters:

objectId - string or array of string

getOffset

$('#viewer-2d').viewer2d('getOffset');

{
    z: 0
}

Get the viewer Z-axis offset.

getSpaces

// Get all spaces from first loaded model
var spaces = $('#viewer-2d').viewer2d('getSpaces');
console.log(spaces);

// Get all spaces
var spaces = $('#viewer-2d').viewer2d('getSpaces', { all: true });
console.log(spaces);

// Get all visible spaces
var spaces = $('#viewer-2d').viewer2d('getSpaces', { all: true, visible: true });
console.log(spaces);

// Get spaces for a specific building
var spaces = $('#viewer-2d').viewer2d('getSpaces', { buildingId: '0.wskqcff1ik' });
console.log(spaces);

// Get spaces for a specific storey
var spaces = $('#viewer-2d').viewer2d('getSpaces', { storeyId: "72150032" });
console.log(spaces);

[
    {
        id: "2776903120",
        guid: "3gw3QKdmzBThLITx3QSRY2",
        name: "1E16"
        longName: "CENTRAL WAITING",
        storey: "First Floor"
        storeyId: "2776903125"
        boundingBox: {
            height: 10.2760009765625
            width: 4.792999267578125
            x: -50.61149978637695
            y: -48.75149917602539
        }
    }
]

Returns an array of space objects.

Due to backward compatibility we will only add spaces from the first loaded model. Add the all flag to the options to get spaces from all models.

Parameters:

object
- all - boolean (optional) Get spaces from all models.
- buildingId - string (optional) Get spaces for a specific building.
- storeyId - string (optional) Get spaces for a specific storey.
- visible - boolean (optional) Filter query to only include spaces visible in the viewer. This can be combined with other options.

getStoreyByElevation

var storey = $('#viewer-2d').viewer2d('getStoreyByElevation', 3.2);
console.log(storey);

{
    id: "2777293459",
    guid: "3eM8WbY_59RR5TDWs3wwJP",
    name: "2. floor",
    elevation: "2.77"
}

Gets the storey at a given elevation. This will only give the storey for the first model loaded. Use getStoreysByElevation to get storeys for all models.

Parameters:

elevation - Double

getStoreysByElevation

var storeys = $('#viewer-2d').viewer2d('getStoreysByElevation', 3.2);
console.log(storeys);

[
    {
        id: "2777293459",
        guid: "3eM8WbY_59RR5TDWs3wwJP",
        name: "2. floor",
        elevation: "2.77"
    },
    {
        id: "1579293459",
        guid: "5aa9WbY_59RR5TDWs3wwJP",
        name: "3. floor",
        elevation: "2.5"
    }
]

Gets storeys from all models at a given elevation.

Parameters:

elevation - Double

getStoreys

// Get all storeys from first loaded model
var storeys = $('#viewer-2d').viewer2d('getStoreys');
console.log(storeys);

// Get all storeys
var storeys = $('#viewer-2d').viewer2d('getStoreys', { all: true });
console.log(storeys);

// Get all visible storeys
var storeys = $('#viewer-2d').viewer2d('getStoreys', { all: true, visible: true });
console.log(storeys);

// Get storeys for a given building
var storeys = $('#viewer-2d').viewer2d('getStoreys', { buildingId: '0.aqifqv5mjx7' });
console.log(storeys);

[
    {
        elevation: "-2.77",
        id: "2776903120",
        guid: "3eM8WbY_59RR5TDWs3wwJP",
        name: "basement"
    }
]

Returns an array of storey objects. Due to backward compatibility we will only include storeys from the first loaded model. Use the all flag to the options to get storeys from all models.

Parameters:

object
- buildingId - string (optional) Get storeys for a specific building.
- all - boolean (optional) Get storeys from all models.
- visible - boolean (optional) Filter query to only include storeys visible in the viewer. This can be combined with other options.

getViewpoint

var viewpoint = $('#viewer-2d').viewer2d('getViewpoint');
console.log(viewpoint);

{
    location: {
        x: 1, 
        y: 2,
        z: 34
    },
    direction: {
        x: 0.39,
        y: 0.9,
        z: 0
    }
}

Get the viewpoint. Viewpoint is the red arrow which shows where you are looking from.

The height (location.z) is the height of the active storey. The direction is in the horizontal plane (xy), facing in the direction of the arrow.

hideStorey

$('#viewer-2d').viewer2d('hideStorey', '18320028');

Hide a storey.

Parameters:

storeyId - string - The id of the storey

hideStoreys

$('#viewer-2d').viewer2d('hideStoreys');

Hide all storeys.

hideViewpoint

$('#viewer-2d').viewer2d('hideViewpoint');

Hides the viewpoint. Use showViewpoint to make it visible.

loadUrl

$('#viewer-2d').viewer2d(
  'loadUrl',
  'https://api.catenda.com/v2/projects/dabc6df.../viewer2d/geometry?token=410c0aa7...',
  { append: true }
);

Load the contents of a viewer-2d access token.

Parameters:

url - String
options
- append - boolean (optional, default is false) - If append is set to true, the model will be appended to the existing models in the viewer. If set to false, all existing models will be removed before the model is loaded.
- modelId - String (optional) - The modelId is used to identify the loaded model. Removal of a single model will require the modelId. If not present, a random id will be assigned.
- modelName - String (optional) - The name of the model. This can be used to store a user friendly name of the model.

lookAt

$('#viewer-2d').viewer2d('lookAt', '123456');
$('#viewer-2d').viewer2d('lookAt', ['123456', '234567']);
$('#viewer-2d').viewer2d('lookAt', ['123456', '234567'], { retainStoreys: true });
$('#viewer-2d').viewer2d('lookAt', ['123456', '234567'], { retainStoreys: true, expand: 1.8 });
$('#viewer-2d').viewer2d('lookAt', ['123456', '234567'], { retainStoreys: true, expand: { x: 2, y: 3 } });

Move given objects into view.

If any of the objects are visible, we will retain the current storeys. Otherwise we will change to the storeys matching the lowest elevation of the objects. If you always want to retain the current storeys you can set the retainStoreys option to true.

Parameters:

objectId - string or array of string
options
- retainStoreys - boolean (optional) Always retain current storeys. Default is false.
- expand - numbers or vector - Expand the view to include some of the area surrounding the objects. Unit is in meters.

lookAtBoundingBox

$('#viewer-2d').viewer2d(
  'lookAtBoundingBox',
  {
    min: { x: -50.6115, y: -58.1927 },
    max: { x: 1.648, y: 7.6145 }
  }
);
$('#viewer-2d').viewer2d(
  'lookAtBoundingBox',
  {
    min: { x: -50.6115, y: -58.1927, z: 2.1 },
    max: { x: 1.648, y: 7.6145, z: 3.1 }
  },
  {
    retainStoreys: true
  }
);

Set view to a bounding box.

The retainStoreys option works as in lookAt when z is present. If z is absent, the storeys will be retained.

Parameters:

boundingBox
- min
  - x - numbers
  - y - numbers
  - z - numbers - optional
- max
  - x - numbers
  - y - numbers
  - z - numbers - optional
options
- retainStoreys - boolean (optional) Retain current storeys. Default is false if z is present and true if z is absent.

moveTo

Moves viewpoint to specified location.

Parameters:

x - double
y - double

removeMarker

$('#viewer-2d').viewer2d('removeMarker',  'P325');

Remove a marker.

Parameters:

id - string - marker id

screenshot

$('#viewer-2d').viewer2d('screenshot', { width: 1024, height: 768 }, function(image) {
  $element.attr('src', image);
});

Get a 2D screenshot in PNG format.

Parameters:

options
- width - width of the screenshot,
- height - height of the screenshot
callback - method - returns the image produced

select

$('#viewer-2d').viewer2d('select', '123456');

Select an object visually in the 2D viewer.

Parameters:

objectId - string - This will only work for objects visible in 2D.

setColor

$('#viewer-2d').viewer2d('setColor', '20640', 'red');
$('#viewer-2d').viewer2d('setColor', '20640', 'rgba(150, 255, 50, 0.5)');
$('#viewer-2d').viewer2d('setColor', ['20640', '34234'], 'red');

Apply a color to an object.

Parameters:

objectId - string or array of strings (spaces and objects visible in 2D)
color - string

setSpaceNames

$('#viewer-2d').viewer2d(
  'setSpaceNames',
  {
    '123456789': {
      name: '001.001'
      longName: 'Kitchen'
    },
    '987654321': {
      name: '001.002'
      longName: 'Living room'
    }
  }
);

Change the names being displayed for spaces.

Parameters:

names - object Map from object ID to an object containing name and/or longname values.

setSpaceNameFormat

$('#viewer-2d').viewer2d('setSpaceNameFormat', 'long');

Set the format for space names.

Parameters:

format - { 'regular', 'long' } Display regular or long name for spaces

setTransformation

var transform = {
    position: {
        x: 2.0,
        y: 1.0,
        z: 3.4
    },
    rotation: {
        centerOfRotation: {
            x: 1.0,
            y: 0.0
        },
        angle: 3.14 // radians
    }
};
$('#viewer-2d').viewer2d('setTransformation', modelId, transform);

Set model transformation.

Parameters:

modelId - String
transform - Object

setViewpoint

$('#viewer-2d').viewer2d('setViewpoint', {location: {x: 1, y: 2}});
$('#viewer-2d').viewer2d('setViewpoint', {location: {x: 1, y: 2}, direction: 90});
$('#viewer-2d').viewer2d('setViewpoint', {location: {x: 1, y: 2}, direction: {x: 0.39, y: 0.92} });

Set the location and orientation of the viewpoint.

Parameters:

object
- location - { x, y }
- direction - numbers in degrees or normalized vector { x, y }

showStorey

var storey = $('#viewer-2d').viewer2d('storeyByElevation', 3.2);
$('#viewer-2d').viewer2d('showStorey', storey.id);

Make a storey visible in the view.

Parameters:

id - String

showViewpoint

$('#viewer-2d').viewer2d('showViewpoint');

Show the viewpoint. Use hideViewpoint to hide the viewpoint.

unloadModel

$('#viewer-2d').viewer2d('unloadModel', '817accd43bf24915b8491085e40b6d8c');

Unload model from viewer.

Parameters:

modelId - String - This should match the modelId specified in loadUrl.

Types

Marker interface

Properties

Name	Type	Description
id	string	A unique identifier.
x	number	Marker X axis position.
y	number	Marker Y axis position
icon	Icon	Optional. Marker icon.
color	string	Optional. Marker color.
text	string	Optional. A text label to the marker.
data	any	Optional. User data associated with the marker.

Icon interface

Properties

Name	Type	Description
url	string	The URL of the image.
size	Size	The size of the image.
anchor	Point	The point of the image that will correspond to the marker position.

Point interface

Properties

Name	Type	Description
x	number	The X coordinate.
y	number	The Y coordinate.

Size interface

Properties

Name	Type	Description
width	number	The width.
height	number	The height.

Events

The events created by the viewer are custom jQuery events. Attach a handler to an event with jQuery.bind.

viewer2d.click

$('#viewer-2d').bind('viewer2d.click', function(event, location, id) {
    console.log('viewer2d.click', 'location', location, 'id', id);
});

Triggered when the user clicks inside the viewer. Returning false from the event handler will cancel the default viewer behavior.

Callback Parameters

location	Object	Global coordinate of the cursor. Z value is the height of the intersection plane.
id	String	Id of the object below the cursor. Undefined if no objects are below the cursors.

viewer2d.contextmenu

$('#viewer-2d').bind('viewer2d.contextmenu', function(event, location, id) {
    console.log('viewer2d.contextmenu', 'location', location, 'id', id);
});

Triggered when the user summons the context menu (e.g. by right-clicking).

Callback Parameters

location	Object	Global coordinate of the cursor. Z value is the height of the intersection plane.
id	String	Id of the object below the cursor. Undefined if no objects are below the cursor.

viewer2d.dblclick

$('#viewer-2d').bind('viewer2d.dblclick', function(event, location, id) {
    console.log('viewer2d.dblclick', 'location', location, 'id', id);
});

Triggered when the user double-clicks inside the viewer. Returning false from the event handler will cancel the default viewer behavior.

Callback Parameters

location	Object	Global coordinate of the cursor. Z value is the height of the intersection plane.
id	String	Id of the object below the cursor. Undefined if no objects are below the cursors.

viewer2d.load

$('#viewer-2d').bind('viewer2d.load', function(event, modelId) {
    console.log("Viewer2D model loaded", modelId);
});

Triggered when viewer and content is completely loaded.

Callback parameters

modelId

String

ID of model

viewer2d.loadfail

$('#viewer-2d').bind('viewer2d.loadfail', function(event, modelId) {
    console.log("Viewer2D model load failed", modelId);
});

Triggered when model load fails.

Callback parameters

modelId

String

ID of model

viewer2d.loadstart

$('#viewer-2d').bind('viewer2d.loadstart', function(event, modelId) {
    console.log("Viewer2D model load started", modelId);
});

Triggered when model load is started.

Callback parameters

modelId

String

ID of model

viewer2d.markerclick

var marker = $('#viewer-2d').viewer2d('addMarker', {
  id: 42,
  x:1.45,
  y:0.34,
  color: 'yellow',
  text: 'Remove door',
  clickable: true
});
$('#viewer-2d').bind('viewer2d.markerclick', function(event, marker) {
    console.log('Marker clicked', marker.id);
});

Triggered when the user clicks on a marker. The marker must be created as clickable.

Returning false from the event handler will cancel the default viewer behavior.

Callback Parameters

Name	Type	Description
marker	Marker	The clicked marker

viewer2d.markerhover

var marker = $('#viewer-2d').viewer2d('addMarker', {
  id: 42,
  x:1.45,
  y:0.34,
  color: 'yellow',
  text: 'Remove door',
  clickable: true
});
$('#viewer-2d').bind('viewer2d.markerhover', function(event, marker) {
    console.log('Hovered over marker', marker.id);
});

Triggered when the user hovers over a marker.

Returning false from the event handler will cancel the default viewer behavior.

Callback Parameters

marker

[Marker](#marker-interface)

The hovered marker.

viewer2d.select

Triggered when the set of selected objects is changed by user events (e.g. mouse clicks).

Callback Parameters

selected

Array

Set of selected object IDs. If no objects are selected the array is empty.

viewer2d.unload

$('#viewer-2d').bind('viewer2d.unload', function(event, modelId) {
    console.log("Viewer2D model unloaded", modelId);
});

Triggered when viewer and content is unloaded.

Callback parameters

modelId

String

ID of model

viewer2d.viewpoint

Triggered when the current viewpoint is changed by user events (e.g. mouse drags).

Callback Parameters

viewpoint

Object

A viewpoint