Edge-homotopy classification of spatial graph d 3的邊同倫分類
The characteristics of geographical spatial thought include : 1 ) forming mental pictures at sight of words, 2 ) corresponding speculation about spatial graphs and 3 ) dynamic relative speculation about space 地理空間思維一般具有以下特點:見文生圖;空間圖形的對應(yīng)思辯;空間的動態(tài)聯(lián)系思辯。
The difformity of these graphs reflected the diversity of their formative mechanism, behavior character and development phase . thus the research for geography spatial graph could educe the evolvement law 圖形的千差萬別反映了它們成因機(jī)制、行為特征及演化差異的信息,對地理空間圖形的研究可以反演空間事物的分異演化規(guī)律。
Patch of dissimilar land use types had different spatial graph character, and patch of the same land use type also exhibited different spatial shape in different evolvement phase or in different environment 不同土地利用類型斑塊有不同的空間圖形特征,同一土地利用類型斑塊在不同演化階段或處于不同環(huán)境中其空間形狀也有差異。