How to convert CAD to GIS? Visualize CAD drawings into 3D GIS.

How to convert CAD to GIS? Visualize CAD drawings into 3D GIS.test
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Let’s start with what the meaning of GIS (Geographic Information System)?

Virtually thousands of organizations in each region are using GIS to create maps that communicate, analyse, share information and solve complex problems around the world. This is changing the way the world works.

How to Import and export GIS data in AutoCAD Map 3D?

Import and export GIS data between drawing objects and external databases in AutoCAD MAP 3D.

In “Importing GIS Data”, you attach GIS data to the AutoCAD object with a rich set. It is not necessary to maintain the data file after importing.

  1. Use “map import” to select trail data from an ESRIA shape-file.
  2. In the Import dialogue, specify layer names and the import coordinate system.
  3. Use Attribute Data to add object data and import.
  4. In the drawing, browse the imported objects and properties.

In “Export GIS Data”, you share GIS data with other systems, which meet the design cycle.

  1. In the drawing, select street lines and use properties to browse object data.
  2. Use “Map DWG to SDF” and specify layers and features to export.
  3. In the Export Location dialogue, specify columns for object data and export.

How to Geo-reference CAD data

Geo-referencing CAD data includes assigning a coordinate system and implementing changes in CAD data. The instructions provide a description of how to make geo-reference in CAD data in ArcMap.
  1. In ArcMap, add the CAD data to the map.
  2. Load the Geo-referencing toolbar, navigate to Customize -> Toolbars -> Geo-referencing.
  3. On the toolbar, select the desired CAD feature layer from the dataset.
  4. Zoom to the desired destination area, and navigate to Geo-referencing -> Fit to Display.
  5. To create the first link, click the Add Control Points tool, and snap to the endpoint of the desired parcel feature.
  6. To save the updates, click Geo-referencing -> Update Geo-referencing.
  7. In the CAD World File window, save the desired file name and file type as World.
  8. Click Save.

BIM and GIS, together at the end

When Esri / Autodesk partnership was announced, then both companies promised to establish a more robust integrated GIS and BIM workflows. He also promised a more uninterrupted exchange, which is a connection between spatial and attributed data, which is usually captured in Esri’s GIS system and gets information from the 3D BIM model in Autodesk’s design software.

Since announcing the Esri / Autodesk partnership November 2017, Esri is working on a future roadmap for BIM-GIS integration with ArcGIS. The company had introduced this roadmap in Palm Springs during the last DevSummit in March 2017.

A roadmap for BIM-GIS integration shows how Esri has planned to integrate the BIM model into its workflows. ArcGIS Pro’s next release will offer direct reading capabilities for Autodesk Revit so that BIM information can be brought to the workflows of the ArcGIS platform. This capability has been planned for this year’s ArcGIS Pro 2.2 set for release in summer. Up to now, ArcGIS Desktop can only read BIM information using Industry Foundation Classes (IFC) files. This difference is made by conversion plugin, a plugin for data conversion.

Visualize CAD Drawings Into 3D GIS Process

What GIS users can do with BIM DATA?

With this new reacting capability, GIS users will be able to do two jobs. One, they can visualize BIM information in ArcGIS Pro, through feature classrooms, can retain semantically structured information from Revit, which is a collection of map features in GIS. It enables them to use those features that they want from the data model for other purposes, such as asset management.

Two, a whole BIM model can now be seen in a geographic context. This visual ability will bring some more clarity to the GIS users inside of a BIM model. Equally important that is not inside a BIM model, for example, rooms and spaces – both GIS are geometric bodies familiar to the world and used for analysis, but not for architects. Because Revit provides a limited amount of categories, all of them are mapped to a feature class which allows access to all related attributes and parametric information. IFC, in comparison, uses many more categories, which are less easy to manage in GIS.

This is similar to the CAD data that handles the Revit Data in ArcGIS, meaning that it eliminates the data and interprets it as a GIS dataset. ArcGIS can export feature classes in .dwg format that can be accessed in AutoCAD using the plugin called ArcGIS for AutoCAD. Revit read capacity is the first step in the same process for BIM data.

Now, import Geo-Reference Data into CAD Drawing with Alpha CAD Service. We complete helping you to import and export CAD Drawings Into 3D GIS.

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