Rules for interpretation of zone boundaries shown on the Official Zoning Map (or maps) are as follows:
A. Boundaries indicated as approximately following the rights of way of a street, alley or other public way shall be construed to follow such rights of way lines and when said rights of way are officially vacated the zones bordering such rights of way shall be extended out to the center line of said vacated rights of way;
B. Boundaries indicated, as approximately following plotted lot lines shall be construed as following such lot lines;
C. Boundaries indicated, as approximately following political boundary lines shall be construed as following such boundary lines;
D. Boundaries indicated, as approximately following railroad lines shall be construed to be midway between the main tracks;
E. Boundaries indicated as approximately following the centerlines of streets, streams, rivers, ditches, gullies, ravines or other bodies of water shall be construed to follow such centerlines;
F. Boundaries indicated as approximately parallel to features indicated in Rules A through E, of this section, shall be construed as parallel to such features. Boundaries indicated as approximate extensions of features indicated in Rules A through E, of this section, shall be construed as being extensions of such features. Distances not specifically indicated on the Official Zoning Map (or maps) shall be determined by the scale of the map (or maps), if an accurate legal description cannot be determined from the original zoning case.