Question
Download Solution PDFIn Map versus Aerial photograph, due to symbolic representation the clarity of details is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Differences between Map and Aerial Photograph
1. The map is an orthographic projection, whereas an aerial photograph is a central projection, i.e. perspective projection.
2. The map has a single constant scale, whereas it varies from point to point depending upon their elevations in an aerial photograph. In the case of the photograph, the terrain area which has higher elevation is closer to the camera and therefore appears larger than the terrains area laying at a lower elevation.
3. The number of details on a map are selective whereas in a aerial photograph there is a large number of details.
4. Due to the symbolic representation, the clarity of details is more on the maps than on photo.
Additional InformationAerial photographs:
It is generally classified as being vertical or oblique.
1. A vertically photograph is one that has been taken with the camera axis axis directed toward the ground as vertically as possible.
2. An oblique photograph is one that has been taken with the camera axis directed at an inclination to the ground
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