Laser Direct. Delisle (left) targets survey device directly from CAD. (Photo by Tom Sawyer for ENR)

G艾伯利尔·德里斯（Abriel Delisle）站在莉卡（Leica Total Station）旁边。安装在其三脚架上的笔记本电脑PC显示3D CAD模型。Delisle点击屏幕上列顶部的一个点，测量设备立即旋转。其激光的红色标签钉在80英尺的列的顶部。

Delisle说：“这是双向的，”这意味着用户可以在CAD图像中导航以在结构上找到功能，或者使用激光标记并应用这些坐标来构建CAD模型或在现场绘制。Delisle是FieldDesigner，Inc。的软件开发人员，该公司是CAD/Total Station链接的创建者。

The software works within AutoCAD 2002 and is sold with it, although it can export data into other CAD programs as well. Using a library, points can be related into 3D representations. Three points on a pipe establishes curvature; two more establishes length, and the software delivers a 3D pipe to the screen.

"You’re actually surveying right inside the AutoCAD session," says Michael Frecks, president of 3D Services and Solutions, an Elkhorn, Neb.-based surveying and visualization consultant. "It’s like surveying in the virtual world," he says.

Frecks has been using the system, introduced at the World of Concrete in Las Vegas last month, in trials for about a year. "I love it," he says. "I have not seen any other product that can accomplish these things."

“我们在公司中开发了它以消除重新访问，”现场设计师总裁StéphaneArsenault说。他说，他40岁的公司在办公室里厌倦了转换调查数据，只需要将船员送回以纠正错误并捡起丢失的信息。他说，该系统也非常适合检查针对模型或计划的施工准确性。他说：“如果有什么问题，那你就知道了。”Frecks补充说，该设备也很容易实现。他说：“你只拿几分。”“控制点问题实际上消失了。”

The basic package has software, tripod, dolly and PC rack. The company says it can deliver many configurations and options, including links to GPS and wireless hand-held measuring devices.