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High Resolution 1:10,000 scale Mapping Strategy of Multi ... - NDMA

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DEFINITIONS<br />

AERIAL PHOTOGRAPHY<br />

Photographing <strong>of</strong> terrain on the ground and objects in the air by cameras mounted in<br />

aircraft. It is utilized in satellites, multispectral scanning and intricate data handling<br />

systems. Also referred to as aerial photo or air photo<br />

BASE MAP<br />

A map showing certain fundamental information used as a base upon which additional<br />

data <strong>of</strong> specialised nature are compiled.<br />

BLUELINE<br />

A non-reproducible blue image printed on paper from vellum or mylar sheet<br />

BREAKLINE<br />

An elevation polyline, in which each vertex has its own X,Y,Z values.<br />

CADASTRAL MAP<br />

A map showing boundaries <strong>of</strong> subdivision <strong>of</strong> land for purposes <strong>of</strong> describing and<br />

recording ownership<br />

CONTACT PRINT<br />

An aerial photograph reproduced from an original negative to photographic paper.<br />

CONTOUR<br />

An imaginary line on a land surface connecting points <strong>of</strong> equal elevation<br />

DESIGN SCALE<br />

A <strong>scale</strong> for which data source has been designed or selected to ensure product<br />

accuracy in derived products the design <strong>scale</strong> is the smallest <strong>scale</strong> <strong>of</strong> individual features.<br />

DVP<br />

Digital Photogrammetric <strong>Mapping</strong> S<strong>of</strong>tware the City uses for maintaining the Enterprise<br />

Stereoscopic Model (ESM) topographic mapping.<br />

DMOG

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