A promising approach on the search for geometric constraint of directionalgraph in off-line parametric design has been put forward. The method for representation of thedirectional graph is given firstly, then the cons...A promising approach on the search for geometric constraint of directionalgraph in off-line parametric design has been put forward. The method for representation of thedirectional graph is given firstly, then the constraint model for every geometry element is putforward. By the search of geometric constraint, it sets up the topology constraint relation on thedifferent element objects, which are not related in geometry data base, and achieves the identifyfor the directional graph. The algorithm of recognizing geometric constraint is described in detail,in the meantime, the application example in off-line parametric design on dimension-driven isgiven.展开更多
The survey of fluorite ore resources in Shangkuli area is based on years of data collection and research in the survey area and mineral inspection to select some favorable ore-forming sections. It summarizes the metal...The survey of fluorite ore resources in Shangkuli area is based on years of data collection and research in the survey area and mineral inspection to select some favorable ore-forming sections. It summarizes the metallogenic geological background, strata, magmatic rocks, structures and other metallogenic geological conditions in the survey area. It synthesizes the geological, geophysical, geochemical and remote sensing anomalies and the temporal and spatial distribution laws of minerals in the survey area, systematically summarizes the mineralization laws of the ore-controlling factors of fluorite ore in the survey area, conducts the prediction research on typical deposits and regional minerals, divides the prospecting areas and selects 2 prospecting target areas. Through anomaly verification and ore spot inspection, one new mineral spot, six ore spots and eight mineralized spots have been discovered, and a number of geochemical anomalies of 1: 50,000 have been circled, and the resources have been predicted and estimated respectively.展开更多
基金This project is supported by National 863/C1MS Plan(No.863-511-507) Provincial Natural Science Foundation of Anhui, China (No.01042209).
文摘A promising approach on the search for geometric constraint of directionalgraph in off-line parametric design has been put forward. The method for representation of thedirectional graph is given firstly, then the constraint model for every geometry element is putforward. By the search of geometric constraint, it sets up the topology constraint relation on thedifferent element objects, which are not related in geometry data base, and achieves the identifyfor the directional graph. The algorithm of recognizing geometric constraint is described in detail,in the meantime, the application example in off-line parametric design on dimension-driven isgiven.
文摘The survey of fluorite ore resources in Shangkuli area is based on years of data collection and research in the survey area and mineral inspection to select some favorable ore-forming sections. It summarizes the metallogenic geological background, strata, magmatic rocks, structures and other metallogenic geological conditions in the survey area. It synthesizes the geological, geophysical, geochemical and remote sensing anomalies and the temporal and spatial distribution laws of minerals in the survey area, systematically summarizes the mineralization laws of the ore-controlling factors of fluorite ore in the survey area, conducts the prediction research on typical deposits and regional minerals, divides the prospecting areas and selects 2 prospecting target areas. Through anomaly verification and ore spot inspection, one new mineral spot, six ore spots and eight mineralized spots have been discovered, and a number of geochemical anomalies of 1: 50,000 have been circled, and the resources have been predicted and estimated respectively.
