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资源说明：A lightweight drafting application written in Javascript, SVG, and HTML5.
What is Alberti? Alberti is a perspective layout drawing application, named after Leon Battista Alberti, who quantified modern perspective drawing in his treatise "Della Pittura". Why is it needed? Undertaking a complex, accurate perspective drawing requires an enormous amount of physical space. Depending on the requirements of the drawing, a 14x17 in. layout might require a drafting table 5 feet wide and 10 feet deep. On top of this, you would need a number of impractically large tools: a straight-edge, a drafting triangle, possibly a compass fashioned out of a peg and string. In short, it makes perfect sense to do this in software. Then why not use an existing solution like AutoCAD or 3ds Max? Because these tools are overkill. Alberti provides a highly streamlined interface tailored specifically to the requirements of rapid, natural perspective layout drawing. It is not a 3D modeling tool. Features At its most basic, Alberti provides an infinite, zoomable workspace, and two core tools: a line tool and an arc tool. With these tools and a knowledge of perspective, the basis of any conceivable form can be accurately constructed. Natural extensions of these tools follow: perpendicular and parallel line tools. Automatic perspective space construction tools (in three-point, two-point, and one-point perspective flavors). Alberti also allows the user to import images (such as scanned sketches) onto which a perspective space can be superimposed.
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