Topographic surveying; including geographic, exploratory, and military mapping, with hints on camping, emergency surgery, and photography . Fig. 128.—Tangent ConeProjection. Fig. 129. — IntersectingCone Projection. on the surface of the cone as parallel conical circles, while themeridians are drawn as straight lines on the conical the surface of the cone is developed, the parallel circles appearas arcs of concentric circles whose common center is the apexof the cone, while the meridians appear as straight lines con- CONICAL PROJECTIONS. 4IS verging to that center. The most important
Topographic surveying; including geographic, exploratory, and military mapping, with hints on camping, emergency surgery, and photography . Fig. 128.—Tangent ConeProjection. Fig. 129. — IntersectingCone Projection. on the surface of the cone as parallel conical circles, while themeridians are drawn as straight lines on the conical the surface of the cone is developed, the parallel circles appearas arcs of concentric circles whose common center is the apexof the cone, while the meridians appear as straight lines con- CONICAL PROJECTIONS. 4IS verging to that center. The most important conical projectionsare those of Mercator, Lambert, and Bonne. An ordinary or equidistant conical projection based on atangent cone shows the meridians as straight lines proceeding. 10 60 60 ZO 80 90 100 Fig. 130.—Equal-spaced Conical Projection. 50 60 no
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