数字投影技术的发展，可以用较低的成本得到高质量的图像投影。但当这些投影技术应用于曲面幕以及球幕的时候，却无法保证所投影的图像在屏幕上拉伸而没有变形。为了使站在屏幕前任何位置的观察者能够看到不失真的图形，有必要对投影前的图像进行适当 ...

COLORADO SPRINGS, CO--(Marketwired - Oct 22, 2013) - Promap Corporation (OTCQB: CANN) announced that effective on the opening of business on October 22, 2013 the Company's name will change to Advanced ...

Landmark Information Group has announced the launch of Promap Labs; a new online portal that gives architects, surveyors and land or property developers the ability to test brand new digital mapping ...