Full text: Precision and speed in close range photogrammetry (Part 1)

at aero-photogrammetry but possible at terrestrial survey 
(caused by dense vegetation, camouflage etc.), Spelaeology, 
geological resources, which are not aero-visible etc.: here a 
sketchy interpretation of a Copy would show how additional 
photograms are necessary to fill the gap of the photogramme- 
tric cover and which can be completed on the spot quickly, 
cheaply and rationally. 
After return, gaps in the recording are only completable by an 
enormous additional expenditure (further missions of producing 
photograms) or considerable depreciation of the results. 
Such an emergency plotter represents an optimal plotter which 
can increase the interpretation values by little, clarifying 
measurements. Certain users, especially at the non-topogmphi- 
cal photogrammetry, would often be satisfied by the precision 
Of rough measurements if the photogrammetric restitution are 
more promptly available as they used to. This is the case at 
€.8. gradual changements of models at automobile body-construc- 
tion, aerodynamics, designs at the integration of shapes in 
the existing objects for artistic needs, deformation measure- 
ments etc. 
Concerning the preservation of monuments, this would be the 
case if additions within the original object to be surveyed 
Will be necessary and if different shape variations should be 
considered, forms of elements have to be changed or integrated 
in the existing forms according to the proportions. 
The small plotter must therefore lead to a more extensive 
acceleration and flexibility of the plot as it is the case 
with the usual instruments. 
At proportion-studies, at the standard examination of several 
existing inventory forms with regard to key-measurements such 
as the assignment of objects to the well-known, historical 
locally and temporally different methods of determinating the 
design of arches, arch Segment derivations of three or more 
centred arches, tressing of perpendicular lines e.g. with 
rulers and compasses, ogives and tracery combinations, methods 
of vault design derivations in accordance with the principal 
arch construction method and the one based on a sphare etc., 
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