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The above discussed scope and sort of architectural inventory
is the essence of measurements, which can be performed by
different methods*
2* Short descriptions technology used in architectural
photo gramme t ry
Architectural photogrammetry covers photogrammetrical applications
in architecture, town-planning and historic monuments preserva
tion* It is based mainly on terrestrial photogrammetry methods
and serves for the compilation of. inventory documentation which
should present the trully existing space system as well as the
technical and functional structure of architectural monuments
and architectural details* This documentation should present also
the state of preservation of inventoried objects and is composed
of maps photomaphs and drowings of elevations, frontages,
vertical and horizontal cross-sections as well as surfaces of
the roofs*
Photagrammetric survey in this case giving objective record of
present state of the monument and gathering necessery data for
planning ofrestoration purposes is a soyrce of valuable infor
mation for critical-historical analysis.
Technologies used in architectural photogrammetry depend on the
equipment available for field and office work. Technology is also
related to such problems a 3 definition of results wonted, plotting
scale chosen for presentation, and at times also the accuracy of
the results.
In most cases plotting scale is chosen equal 1:50, but scales
1:100 1:200 are also used• Very often two scales are used.
Scale 1:50 for detailed work and scale 1:100 /or 1:200/ for
review purposes. The documentation at the last scale i 3 prepared
by reducing original plottings from scale 1:50. When details
of monuments are presented, the scales 1 : 5 , 1 : 10 , 1:25 can be
also applied.
The accuracy is in the same range as the graphic errors, that
is a few centimetres in the object for plotting scale 1:50 the
accuracy should be in the standard error equal to + 3 cm on the
object*
Presentation of photogrammetrie results can be done in three
basic ways: graphical or and photographical or numerical*
Graphical representation is chosen mostly for vertical and
horizontal cross-sections* For presentation of elevations and
frontages photographical way is used /photomaps or orthophotc-
maps/* However for simple cases also graphical presentation is
adequate* Numerical way is used occasionally /for measuring of
control points/*
The available nguipment has a major influence on methods and
technologies applied to architectural photogrammetry. This
equipment determin possibility of photogrammetrie methods and
the range of survey and documentation. We can consider however
