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Custom Snapshot Page for Printing

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Geospatial Portal Printing Workflow

Portal performs local printing on the server using one of two engines
- Internet Explorer
- PhantomJS
Server-Side printing is performed using a „Snapshot Page” that is opened in the server-side printing engine
After the snapshot page is fully loaded, the printing engine captures a bitmap
EP05 introduces customization of the snapshot page allowing developer to load additional scripts
Local printout may be then piped to the printing service for further processing

Custom snapshot page

With EP05 it is possible to implement custom snapshot page that generates image used for the printout
Custom snapshot page may use API.js
Custom snapshot page may inject custom script tags
For example custom script tags may handle dynamic predicate based styles

Custom snapshot page implementation

Custom snapshot page

Custom snapshot page inherits from SnapshotPage and allows to override LoadScripts method
SDK EP05 contains example implementation

PhantomJS printing configuration

<printing tileSize="2000" mapSizeLimit="5000" timeout="00:02" defaultService="FirstExternal" precisionGeographic="7" precisionProjected="0" printingEngine="phantomJS" phantomJSProgramLocation="c:\intergraph\Geospatial Portal\Program\PhantomJS\phantomjs.exe" />

Custom snapshot page registration in web.config

<!-- Custom snapshot page to be used for printing. It is possible to add custom scripts. See MySnapshotPage.cs and js/PrintingScripts.js for reference -->
<add key="SnapshotPage" value="MySnapshotPage.WebClient.ashx" />

Predicate based style

Printing

PrintOut

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Comments

Hi,

Is it possible to have a sample code for above?

Regards

Rohit Kumar Sinha

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Hi,

I don't think there's much more code needed than what is present on the screenshots. Just create an empty ASP.NET page, inherit it from the SnapshotPage class and fill in the code.

Regards,

Jan

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Ok, I've checked that and it works fine in Portal SDK but does not work for normal Portal instance. Will try to get some more details.

Jan

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Thanks - will study in more detail - is the purpose to be able to produce custom map display? I don't want to change appearance of the map but i do want to include text based on attributes of feature displayed in map. I would like to run a query of a feature table to get the record for one parcel and then format that information.

Permalink

Purpose of the custom snapshot page is to alter the HTML content ONLY of the actual map window. You can for instance alter WFS styling, remove map scale bar. The snapshot page is actually just a copy of the actual Portal map window.

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Overview

Developers Knowledge Base

Custom Snapshot Page for Printing

Geospatial Portal SDK

WebGIS

Geospatial Portal Printing Workflow

Custom snapshot page

Custom snapshot page implementation

Custom snapshot page

PhantomJS printing configuration

Custom snapshot page registration in web.config

Predicate based style

Printing

PrintOut