jgg     2010 30 (第3期):  63-66    ISSN: 0412-1961  CN: 21-1139/TG CONCISE ALGORITHM AND ACCURACY ANALYSIS OF CIRCLE PILE POSITIONING WITH TOTAL STATION BY ADOPTINGMETHOD OF ONE POINT AND ONE DIRECTION Yao Lianbi 1, 2) ;and Xie Yilin 1) 1)Department of Surveying and Geo-informatics, Tongji University, Shanghai 2000922)Key Laboratory of Modern Engineering Surveying, SBSM, Shanghai 200092 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null