Arrette Scale sketch drafting!

Rated #1 Technical App for Architects by ArchDaily Arrette Scale for iPad is an app for designers who want to draw freehand while maintaining a measurable drawing scale like vector drafting tools. Architects, urban planners, surveyors, home remodelers, field archaeologists and dozens of other kinds of professionals will find this app useful. Included drawing tools:* Freehand drawing pens that scale like vector lines but are as easy to use as pencil and paper* An adjustable grid system that you can easily flip between the metric system and decimal feet* A straight edge tool for drawing perfectly straight lines or arrays of parallel lines* A circle edge tool for drawing arcs and circles of arbitrary, but precise radius* Distance and area measurement tools for measuring the lengths, perimeters and areas of arbitrary pathways in your drawing at precise scale* A lasso tool to select, move, copy and paste previously drawn lines* Layers, for separating out parts of composite objects or for adding new ideas to an existing document that overlay earlier designs* The ability to share Arrette documents with other users or to e-mail documents in PNG or PDF formats* An eraser tool, for revising your designs or removing objects from previous work* The ability to adjust the width of all lines globally even after the lines have been drawn* A color picker to choose from a variety of different pen colors for your drawingBase image imports:* The ability to load base images to draw on top of; base images respect their original scale and direction when the document is zoomed or panned* Import base images from Email, Dropbox, and Adobe Creative Cloud* Copy and paste from other apps that support JPG, PNG or PDFDocument sharing features:* Send PDFs with scale and direction information to colleagues, clients, and other parties via email* Save your work to your Photo Gallery* Share raster versions of your work with anyone via email, Twitter, or Facebook