Building information Modelling what is BIM? There are divergent opinions, the joy of pulling. The definition is a very difficult thing, the most error-prone answer is: through three-dimensional design + modeling + effects + virtual reality + Collaborative Design + system development, the impact of the project's entire life cycle, making ... Thus... At last...
However, chatty's answer can only be to avoid making mistakes, and not to reflect the true interpretation of their meanings. Relative definition, often our working people are more concerned about another concept: the essence.
The nature of BIM, we think, is object-oriented. And this essence is also the same as the nature of the GIS, but the spatial scale of the two bases is different.
Now that we are in and will be in the computer age for a long time, using computers to solve real problems is what we have been doing. Using object-oriented technology, we have achieved one by one correspondence between the real world and the computer world, and the binary representation is more visualized.
Once upon a time, the surveyor is also through a line, labeling, color and other symbol elements to achieve the extraction of spatial information, but symbol is required to read the eye to distinguish. If we think that the eye is an organ that can receive electromagnetic waves, then the computer has no eyes, at least at this stage.
Electromagnetic wave is the carrier of information, not the only carrier. The computer world has always been a binary code as the information carrier, but the general CAD is only using the computer to output the electromagnetic wave (visible, linear, color, labeling, etc.) information, this is not a great disregard for computer function? Information is often met as the first step, but to meet the analysis and thinking is the most important, general CAD is mainly to meet the view, GIS and BIM need a step closer, but also to meet the analysis.
GIS realizes the object-oriented of the 1-19 level of spatial information (general setting of map slices, please forgive me), and gives the real meaning of space entity. We see this plot is a meadow, not because its shape fills the grass style, but rather the computer knows it is the meadow, and then output the table, Symbol, picture or text, and tell us what kind of lawn it is. If not out of the picture, labeling is not required, line color is not required, the computer has a heart.
What BIM needs to accomplish is the 20th level of object-oriented. BIM is simpler than GIS, and it's more complex. Normal human beings to do things are first easy after the difficult, GIS for the space world of the object-oriented from the sub-macro to macroscopic and microscopic development, nature is first easy after difficult. Then move toward each level of the micro, along with the number and difficulty of the magnitude of the multiplication. At level 20th, the challenge for BIM is probably far beyond the top 19 levels (people who have done map slicing have a firsthand experience).
Finally, how does BIM and GIS relate to this? Try to liken it to a relationship between a gene and a biological individual. This gene is a gene that can have big eyes and long eyelashes, and the gene is very powerful, but out of the biological individual, it may be the control of a big beauty, may be a small donkey. BIM is therefore an excellent gene for a microcosm, but it is inseparable from the macro support of GIS. GIS requires the excellent gene of BIM, which eliminates makeup and embodies natural beauty; the features of BIM need to be based on GIS, avoiding positioning and maximizing value. Let Bimer and Giser work together to create an internal and external repair of the eye-catcher.
BIM and GIS