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Susan Smith
Susan Smith
Susan Smith has worked as an editor and writer in the technology industry for over 16 years. As an editor she has been responsible for the launch of a number of technology trade publications, both in print and online. Currently, Susan is the Editor of GISCafe and AECCafe, as well as those sites’ … More »

ArcSite Converts Freehand Drawing into Perfect Geometry

September 23rd, 2015 by Susan Smith

ArcTuition has done something that architects and designers have been asking for since the inception of CAD – on a mobile device: it has combined integrated machine learning with freehand drawing.

Statistical learning is used to predict and correct input in real time while you draw. This is quite amazing, because ArcSite can convert freehand drawing into perfect geometry. The ArcTuition ArcSense Algorithm figures it out for you.

Using the app, it learns your habits and drawing style and averages your technique to the pool of data collected from everyone else. The more you draw, the better your results are over time.

The following is information from company materials:

Recently Added Features

  • Smart Dimension Editing: Change a dimension of any geometry and all of it’s related geometries will update accordingly. For example, a rectangle will still be rectangle after its width/height is changed.
  • Shapes and Symbols: A growing library of predefined shapes commonly used in architecture, interior design, electrical, landscape, plumbing, etc. More importantly, now you can even create your own custom shapes!
  • Cloud Access and Collaboration: Import PDF files directly from within the app and access your projects anywhere via your cloud-based account. Once uploaded to your ArcSite account, projects will be available in a variety of formats (PNG, PDF, and AutoCAD® DXF) so that you can download and share them with anyone from any computers.
  • Layers
  • Mirror tool
  • “Snap to Grid” option
  • “Grid Spacing” option
  • Text Callouts

Smart Drawing

  • Start drawing from scratch, or from an imported photo or PDF file.
  • Sketch and ArcSite automatically recognizes lines, arcs and circles in real-time.
  • 2 drawing modes: The Control Mode lets you draw one segment at a time with single strokes while the Continuous Mode allows you to draw a complex shape fast in one continuous stroke.
  • Snapping and reference line support when drawing a line or arc. Vertical/horizontal direction, end point, midpoint, center point of circle and edges.
  • Real-time dimension support so you can draw geometries accurately.
  • ArcSite’s shape recognition algorithm interpret your intention, whether you want to draw a polygon or a combination of straight lines and arcs, and complete the shape smartly in real time.
  • Freehand drawing option.


  • PDF support – View and annotate on large PDF files with high navigation performance.


  • Pan/Zoom support in any tools. View only mode support (Lock the view).
  • 2 selection types supported: single selection by tapping an object to edit or remove and window selection to edit or remove a group of objects within the selection window.
  • Powerful grip editing functionality.
  • You can move, scale, rotate, duplicate and remove selected objects.
  • Trim/Extend tool. Line style and text: Choose from various colors, line types and line width. Insert text by typing or freehand writing.


  • Create dimension on photos or geometries.
  • Linear and angular dimensions are supported. ArcSite automatically recognize linear and dimension types.
  • Dimension supports snapping, so it will place in the right place.

Units and Calibration

  • Support both imperial (inch, feet) and metric (meter, millimeters) unit
  • Support 5 types of precisions.
  • Calibrate the drawing with a known measurement.

Photo Management

  • Import multiple background images. Move, rotate and even duplicate
  • Insert photos at the locations where the photos are taken within the drawing.
  • Annotate and markup dimension directly on photos.

Sharing and Collaboration

  • Export drawings to DXF, PDF and PNG formats
  • Share drawings and files without exiting the app

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Categories: 2D, 3D, 3D PDF, apps, architecture, BIM, collaboration, construction, mobile

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