ülekatteprotsesse

ülekatteprotsessid refer to overlay processes or overlay analysis in geographic information systems (GIS). These are methods used to combine and analyze multiple spatial datasets that are geographically coincident. The core idea is to layer different thematic maps on top of each other to understand their spatial relationships and derive new information. Common overlay operations include union, intersect, and identity. A union combines all features from all input layers, creating new polygons that encompass all areas. An intersect operation identifies areas that are common to all input layers, resulting in features that exist in all overlapping datasets. The identity operation, on the other hand, clips features from one input layer based on the boundaries of another input layer, retaining the attributes of the clipped layer. ülekatteprotsessid are fundamental tools for spatial decision-making, enabling tasks such as suitability analysis, impact assessment, and resource management. For instance, combining a land ownership map with a land use map can help identify areas suitable for a specific development project. Similarly, overlaying population density data with environmental hazard zones can help assess risk. The results of these processes are new spatial datasets that integrate information from the original layers.