Table 3 Parameters of the standard deviation ellipse of the SBH distribution for each stage
From: Spatial–temporal distribution and evolution of the socialist built heritage in China, 1949–1978
Stage | Long axis of ellipse (m) | Short axis of ellipse (m) | Area (m2) | Azimuth angle | Oblateness |
|---|---|---|---|---|---|
Stage I | 1357304.0492 | 1154847.0751 | 4924119416059.7891 | 90.9034° | 0.1492 |
Stage II | 1199126.0225 | 1058539.2692 | 3987485421909.6538 | 61.0185° | 0.1172 |
Stage III | 1232591.2545 | 1073670.6478 | 4157357306947.1958 | 82.9763° | 0.1289 |
Stage IV | 976833.3721 | 857523.0171 | 2631440371628.0352 | 52.8292° | 0.1221 |