[IT] HTML 5 integration procedures for DWGs display on Web

1.The CAD drawing displayed in the web browser is actually ocf file generated from CAD drawing, the ocf file needs to be sent to the front end, so H5 version control can analyze and display the ocf file. 2.Supported browsers: mainstream browsers such as Chrome, Firefox, Edge, 360, QQ, etc. IE browser is not supported. 3.Sample codes must be deployed in the server, local html cannot upload or display ocf file, please refer to the codes in the “Sample codes”folder. 4.The first step is to initialize the display control

Property	Type	Required	Description
wrapid	String	true	Drawing container DOM ID（Width and Height are needed to set container）
language	String	false	Language Settings，available options 'zh'（Simplified Chinese）/'en'(English)/'ko'(Korean),default 'zh
apiHost	String	false	API domain name, requests need to be sent to this domain name if Convert to PDF and Save As function are needed
toolbarHideItems	Object	false	Set menu items to be hidden

5.The second step is to open default CAD drawing ocf file, arraybuffer is binary system data of ocf file, the render function can render and display ocf file.

Property	Type	Required	Description
type	string	true	type of rendered data, only “ocf”is currently supported
bufferData	arraybuffer	true	arraybuffer format binary system data object
fileId	String	true	Unique identifier for the current drawing, pdf conversion and version conversion will need this parameter
defaultViewport	Boolean	false	default false:Viewport is full drawing when opening the drawing; true: the default viewport when saving the drawing

6.Clicking the layout function from front end and switching to other layout will trigger layout switch event, with obj.globalName, we get layout name, If the back end return all ocf files corresponding to layout, we can directly get corresponding ocf with layout name. If only the ocf of default layout is returned, after switching the layout, please refer to the annotated codes below, send requests to back end and wait for the back end to return ocf file link of the current layout.