Put the drawing beside the project discussion
A project portal may already hold specifications, meeting notes, and the latest drawing files. Yet the moment someone needs to check a drawing, the workflow can turn into a download followed by a search for another application.
An embedded CAD preview can keep that review within the project. Doconut Viewer SDK lets .NET developers add document viewing to their applications, including technical drawings alongside familiar business documents.
For readers who open technical files through OnlineDocumentViewer.com, the SDK offers a path toward a viewer inside their own portal. Here, the focus is a project screen where people can inspect a drawing and continue the surrounding review.
Choose the files your portal needs to display
Begin with the formats already present in your projects. Doconut's supported file catalog includes DWG and DXF drawings, as well as DGN files for workflows that require them.
A useful first milestone might be a DWG drawing attached to a project issue. The reviewer opens the attachment, inspects the relevant area, and returns to the issue description.
Keep the action named according to its purpose: preview or view drawing. This workflow helps users inspect a rendered drawing; authoring changes to the CAD source belongs to the tools and process your project team uses for design work.
Keep revision context in the portal
A clear preview is most useful when the person opening it knows which drawing they are looking at. Place the filename, revision information, and project reference beside the viewer.
For example, a procurement issue might refer to a specific drawing revision. The attachment record should identify that revision instead of silently pointing to whichever file was uploaded most recently. That relationship is part of the portal's document model.
A focused review flow can be straightforward:
- Open a project issue or document record.
- Select the associated drawing revision.
- View the drawing with enough space to inspect its details.
- Return to the issue to record the next action.
Doconut provides the viewer. Your portal defines revision selection, review status, and how a drawing relates to the project's other records.
Decide which drawing content to render
CAD files can contain model content and presentation layouts. Before tuning visual quality, establish what the reviewer needs to see.
The Doconut format configuration reference documents CAD settings for including model content and layouts, selecting a white background or color output, and adjusting line width, resolution, and rendering quality.
Test those options against a drawing whose expected output is familiar to the team. A model overview and a prepared sheet can serve different review tasks. Make the initial presentation useful for the task your portal is designed to support.
Avoid changing several rendering settings at once during evaluation. Keep a baseline and compare each adjustment against it.
Check the details that matter to reviewers
Choose sample drawings with different levels of detail and complexity. Inspect them at the size used by the embedded viewer, including the space occupied by the portal's navigation and project details.
| Review concern | Practical check |
|---|---|
| Fine linework | Inspect dense areas and intersecting lines at useful zoom levels. |
| Drawing labels | Check legibility and whether the expected labels appear. |
| Model and layout selection | Confirm that the intended content is included. |
| Background and color | Compare contrast with the team's expected presentation. |
| Large drawing extents | Confirm that the first view helps the reviewer find the relevant content. |
Then measure the first preview and subsequent navigation using representative files. Rendering quality and processing cost should be evaluated together in the environment where the portal will run.
Treat an unsupported or unavailable file as part of the experience too. A clear explanation and a return to the document record are more useful than leaving the reviewer in an empty preview area.
Extend the project workspace with Doconut
Once the drawing workflow is working, consider the supporting documents that reviewers open during the same task. Specifications, spreadsheets, and correspondence can help explain a drawing, and Doconut's format coverage gives you additional preview options to evaluate.
Keep permissions for the drawing and rendered output consistent with the project's access rules. The application's storage and revision history remain the source of truth for which document is being reviewed.
Visit the Doconut Viewer SDK page to explore the product, and use the Doconut download page to start with a small set of your own drawings. A clear revision, a useful initial view, and a dependable return to the project are a strong foundation for an embedded CAD workflow.