SOI: shape optimization framework for hand-drawn line features in Wemap
Wemap is a new form of personalized mapping emerging on the mobile phone in the we-media era. Its characteristics are micro-content, ease of use, and rapid creation, catering to users’ diverse needs for geographic information expression. Hand-drawing via touchscreen is the primary method for generat...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2025-08-01
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| Series: | International Journal of Digital Earth |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/17538947.2025.2514706 |
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| Summary: | Wemap is a new form of personalized mapping emerging on the mobile phone in the we-media era. Its characteristics are micro-content, ease of use, and rapid creation, catering to users’ diverse needs for geographic information expression. Hand-drawing via touchscreen is the primary method for generating Wemaps. However, due to finger occlusion and screen resolution limitations, user-drawn line features have an irregular shape and an uneven density of point coordinates composing a line, leading a we-map has a challenge in ensuring both visual appeal and informational clarity. To address this problem, this study proposes a Segment-Optimize-Integrate (SOI) framework based on the ‘divide and conquer’ strategy, aiming to optimize the geometry of hand-drawn lines. Experimental results demonstrate that (1) the SOI framework achieves a superior balance among smoothness, target similarity, and computational efficiency, comparing with the existing methods (e.g. Li-Openshaw, Douglas-Peucker, Savitzky–Golay, and Bézier curve fitting). (2) Users evaluation indicate that the average satisfaction score is 4.09 (on a 5.00 point scale), with approximately 83% of ratings falling in the 4–5 range. These findings suggest that SOI significantly enhances the visual quality and clarity of hand-drawn line features, offering an effective solution for Wemap creation on mobile platforms. |
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| ISSN: | 1753-8947 1753-8955 |