N el 
At the level of 'viewfield" what the subjective 
perception considers is not only the temporary 
and the transculture elements, but also the 
permanent and regional culture effect. It is 
actually emphasizing the assessment and investiga- 
tion of regional perception of the field land- 
scape. The subjective information of resional 
perception of the field landscape is divided 
into the sense of landscape characteristcs such 
as magnificent uniqueness peril and beauty, the 
sense of the field naturalness, and the sense 
of landscape beauty (scenic beauty estimation, 
SBE). All the perceptional information also can 
be collected through the transformation of the 
objective information of the field space, surface 
and its physical environmental change according 
to the functions established by Liu Bin-yi in 
1990. 
At the level of "viewplace'", the evaluation of 
subjective perception includes, in addition to 
the subjective elements similar to those mentioned 
above, cultural tradition, personal acquaintance 
and deep-going experience developed from long- 
term sediment, i.e. the ingredients of intention. 
It is the evaluation of field landscape percep- 
tion focus upon the sense of situation. The sub- 
jective information of viewplace can be divided 
into the sense of sixteen factors in terms of 
the Chinese expression named kuang-ao. "Kuang" 
means wide, vast, extensive, spaciouseness, open- 
outward oriented or extroverted and is identified 
with peaks, ridges and relative high point in 
the field. "Ao", on the other hand, means narrow, 
small, enclosure, restricted, directional-inward 
oriented or introverted-and is usually identified 
with valleys, sides of streams in the field. 
However, all these perceptional information can 
be collected through the transformation of the 
three - dimensional nature environment and change 
of seasons of the field according to the functions 
established (Liu Bin-yi 1990). 
At the level of 'vieworder", the subjective 
perception evaluation in addition to the subjec- 
tive elements similar to those at the level of 
"viewplace", and the aesthetic perception from 
the artificially evoked yi-jing (a Chinese ar- 
tistic impression) arrangement, i.e., the time- 
Space aesthetics, is emphasizing the evaluation 
and reconstruction of aesthetic field landscape 
perception from yi-jing. The subjective informa- 
tion of vieworder can be divided into several 
construction factors which have some relation- 
ships with the objective factors of  vieworder. 
Some of the subjective information of vieworder 
can be collected through transforming the objec- 
tive information into the subjective information 
of vieworder. 
2.3 Supplementray explanation 
  
All the perceptional information is primarily 
emphasis on the public sense but individual sense. 
It depends on the characteristic of field planning 
for the public. Because this planning is usually 
made for a community, a city or a regional area 
with the service object--the public. Therefore, 
the perceptional information considered here 
is based on the public in common. For example, 
it's the sense of the public that landscape of 
Versailles is sublime and beauty. However, some 
individual my do not think so. 
3. Framework of Time-space Simulation of 
Field Landscape Information 
1Z(H 
  
3.1 Framework of Time-space Simulation of Field 
Environmental Information 
Field environment can be divided into three parts 
according to its scale: national territory, land- 
Scape scenery area and city, as well as scenery 
Spot, street and group of buildings. Field land- 
Scape environment information has the charac- 
teristic of spatial distribution with the time 
order, that is F-q. Assume the field landscape 
environment information source Sy, in sequence 
of time is divided by a definite spatial system, 
this spatial system including the sequence of 
time is the framework F representing time-space 
distribution of field landscape environment infor- 
mation. F is physical simulation and mathematical 
description of T-q (Fig.3-1). The dimension, 
density of division and period of time of F can 
be different according to different scales of 
field environment. Generally, on the scale of 
national territory and region, F can be a plane 
of two dimensions with division densities of 
80m x 80m - 30m x 30m and a period of one season; 
on the scale of landscape scenery area and city, 
F can be a space of three dimensions with division 
densities of 30m x 30m x Im - 10m x 10m x 0.3m 
and a period of one month; on the scale of scenery 
spot, street and group of buildings, F can be 
a space of three dimensions with high division 
densities and short period of time. In the system 
of field landscape information, F is changed 
into a collection S of points with coordinates 
of three dimensions and color and gray of spatial 
    
    
   
  
Geometric Info. 
b 
iM | / 
Hi 1 i 
AULA | B 
| Jl its 8 Z 
Fig.3-2 VIEW Fig.3-1 Framework of time-space 
simulation of rield énvironmental 
information (FL DTM + FL DSM) 
| 
| 
  
  
       
á 
Psychology 
Info. 
  
Fig.3-3 VIEWFIELD Fig.3-4VIEWPLACE Fig.3-5 VIEWORDER 
Fig.3 Framework of time-space simulation of 
field landscape information