The boots were made from a pair of old shoes that I glued to a four inch thick block of foam, then cut around the soles of the shoes and covered the entire boot with sheet styrene.
The data map is stored according to sheet or block in embedded GIS system, thus causing seam in the cutting-border for physical integrate area feature.
嵌入式GIS地图数据是分幅、分块记录和存储的，物理完整的面状地理实体在切割边界会产生缝隙。
3
Lay the front bodice block onto a clean sheet of paper. Site mark the required DART position using same procedure as before.