Q. Projection
Projections (投影) transform spherical polygonal geometry (3D 球形多邊幾何) to planar polygonal geometry (2D 平面多邊幾何)
D3 support three-axis spherical rotation, see Three-Axis Rotation
Q. Geo Flow
- 選定一種projection
- 把Projection匯入geoPath()
- 取得經緯網, d3.geoGraticule()
- 在svg劃出 經緯網
- 匯入土地座標
- 匯入國家邊界座標
- 其他