## 3 Application Cases
### Division of Feature Categories and Extraction of Feature Factors
\begin{table}
\begin{tabular}{c c c c c} \hline \hline \multirow{2}{*}{**Sample**} & \multicolumn{4}{c}{**Class 5**} \\ \cline{2-5}  & \multicolumn{4}{c}{**Dimension**} \\ \cline{2-5}  & \(\mathbf{1}\) & \(\mathbf{2}\) & \(\mathbf{3}\) & **Distance** \\ \hline \(S_{23}\) & \(-0.7534\) & \(-0.9779\) & \(0.3347\) & \(0.8012\) \\ \(S_{31}\) & \(-\mathbf{0.1648}\) & \(-\mathbf{0.5841}\) & \(\mathbf{0.4343}\) & \(\mathbf{0.3420}\) \\ \(S_{34}\) & \(-0.0500\) & \(-2.0503\) & \(0.7151\) & \(1.2138\) \\ \(S_{7}\) & \(2.4330\) & \(0.0748\) & \(1.4896\) & \(2.7759\) \\ \(S_{29}\) & \(-0.5132\) & \(-0.877\) & \(0.1122\) & \(0.6488\) \\ \(S_{33}\) & \(-0.7826\) & \(-0.7709\) & \(-0.2692\) & \(1.1008\) \\ Center & \multicolumn{4}{c}{0.0282} \\ coordinates & \multicolumn{4}{c}{**Class 6**} \\ \hline \hline \multirow{2}{*}{**Sample**} & \multicolumn{4}{c}{**Dimension**} \\ \cline{2-5}  & \(\mathbf{1}\) & \(\mathbf{2}\) & \(\mathbf{3}\) & **Distance** \\ \hline \(S_{2}\) & \(\mathbf{2.9713}\) & \(-\mathbf{1.3155}\) & \(-\mathbf{0.457}\) & \(\mathbf{1.5292}\) \\ \(S_{8}\) & \(-0.1232\) & \(-0.41\) & \(-0.2601\) & \(1.7025\) \\ \(S_{1}\) & \(3.3499\) & \(-1.4692\) & \(-0.349\) & \(1.9311\) \\ \(S_{28}\) & \(-0.1305\) & \(-0.2528\) & \(-0.2347\) & \(1.7587\) \\ Center & \multicolumn{4}{c}{1.5169} \\ coordinates & \multicolumn{4}{c}{\(1.5169\)} \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Typical samples. These were denoted as \(Q=\{q_{1},q_{2},q_{3},q_{4},q_{5},q_{6}\}\). Each category represents a unique functional area or morphological feature. Descriptions and examples of the morphological feature categories are shown in Table 7.  
By using the morphological decomposition method to decompose the morphological feature categories, we obtain the specific morphological manifestation of the earthquake science experience facility components. Each category, \(q_{i}\), contains several feature factors, \(f_{qj}\), which are extracted, summarized, and encoded using wireframes, ultimately forming 6 feature categories, comprising a total of 25 feature factors, described as \(F=\{f_{11},f_{12},\dots,f_{65}\}\). The hierarchical relationship between the morphological feature categories and the feature factors is shown in Figure 6. \begin{table}
\begin{tabular}{c p{142.3 pt}} \hline \hline
**Category** & **Explanation of Morphological Feature Categories** & **Illustration of Categorization Diagram** \\ \hline \multirow{4}{*}{\(q_{1}\)} & At the bottom of the device, there is a hidden mechanical device. Its form can imply the method of recognizing the device’s movement. \\ \hline \multirow{4}{*}{\(q_{2}\)} & Stepped shape, used to log in to the device. The form can imply the recognition of the usage program. \\ \hline \multirow{4}{*}{\(q_{3}\)} & The limits and safety protection facilities of the device experience area. The form can imply the recognition of the experience area. \\ \hline \multirow{4}{*}{\(q_{4}\)} & The configuration of experiential postures, such as standing, sitting, and leaning. The form can imply the recognition of the experiential posture. \\ \hline \multirow{4}{*}{\(q_{5}\)} & The standing platform, where vibration is transmitted to the user through the carrier. The form can imply the recognition of the effective body area. \\ \hline \multirow{4}{*}{\(q_{6}\)} & Equipment and surrounding environment setup to enhance the sense of immersion. The form can imply the recognition of the experiential theme. \\ \hline \hline \end{tabular}
\end{table} 
Table 7: Categorization and description illustration of morphological feature categories. Figure 6: Hierarchical relationship between morphological feature categories and feature factors.