![]() ![]() Due to shadowing during the scan from the store floor, only the lower part of the pipe (slightly more than 180° of the outer surface) can be seen. Pipelines in the scan can often only be seen as patches of points with holes in them. This is because the problem of shading in the ceiling or TGA area (technical building equipment) often comes into play here. But even that is unfortunately not yet fully automated. Yes, there is software like EdgeWise that can fit pipelines into a point cloud with just a few mouse clicks. Why not just reverse engineer automatically with software? For the most part, we are talking about manual modeling work in expert software. Or to put it another way, if scanning costs me perhaps 0.50 $ per 10 sq ft, the costs quickly increase to 2, 5, 10 or up to 20 $ per 10 sq ft, depending on the level of detail and the fundamental question of whether 2D or 3D. If you scan for three days, the subsequent 3D model reconstruction can take ten times as long, i.e. However, the generation of usable data for layout planning or reconstruction often takes up 70-95% of the total time in such projects. Percentage of scanning compared to downstream reconstruction in 2D or 3D ![]() Scanners have become so fast that this step is still not negligible, but it has long since ceased to be the biggest time factor. The fact is that the actual scanning takes only a fraction of the time during digitization (see graphic below). After the acquisition, the work really begins. The expectation that scan data can be used directly for planning is very rarely true. Unfortunately, there are cases where disgruntled customers end up with a set of raw data from a laser scan and are at a loss. Avoid following false promises from hardware manufacturers in this area. Professional service providers (engineering firms) openly discuss this issue with their customers. Example of using sections through point clouds to visualize elevation ranges in the factory What is often concealed – Reverse Engineering in 2D and 3D Then a graphic can be rendered from it in the top view and loaded to scale as a reference in a visTABLE®touch layout, see the following picture. This works well in a side view, for example, where unnecessary height segments are selected and deleted with rectangle selection. Points can be easily cropped, comparable to lasso selection in Photoshop. With the ReCap software, for example, you can very quickly generate hall floor plans with the visible ACTUAL layout of all equipment from a registered point cloud. A good example are the section graphics already mentioned in the last article. You can always create quick added value when the scan data can be used as directly as possible with little manual effort. Determination of the current data situation based on a decision tree The simplest use case – elevation cuts The further down the structure tree you go, the better your data situation and the lower the need for laser scanning. ![]() You can ask yourself the following questions in advance.
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