The algorithm tries to determine parameters such as the number of points, header size, and number of images in the files based only on the file size. If we have no information at all about the file that we are trying to open we can simply drag and drop the file from the Windows explorer into the “heuristic open” window and WSXM will suggest us some parameter/s to open the image using an expert system. In addition we have developed a tool that we call heuristic open that opens files with unknown format in a semiautomated way, including those files that due to the lack of a common identifier are not suitable to be recognized as a specific file format. WSXM free software at Moreover, we are continuously adding new file formats under users’ requirement. According to this idea we have left WSXM as a freeware application that is able to read most of the SPM file formats. In light of the situation we decided to introduce WSXM as a program that can be widely used by the SPM community. and file formats during the last 20 years. The importance of the software has been recognized by different research groups and private companies, which have therefore implemented their own SPM software 5 5. 0034-6(1989).) was used for the first time by Piner and Reifenberger in the very early days of STM. In fact, a very sophisticated feature such as digital control in SPM (Ref. A computer controls nowadays almost every SPM and the different modes are implemented by specific subroutines of the corresponding SPM program. The same hardware equipment can thus be operated in a great variety of operation modes, which makes SPM an extremely versatile technique. From the measurement of the interaction, different material properties can be inferred, making SPM an important analytical tool for nanotechnology. Other important features are, as mentioned above, the manipulation of matter as well as the measurement of the tip-sample interaction. The most relevant application of a SPM is to acquire images but this is not the only use of SPM.
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