画法几何习题集答案.ppt

《画法几何习题集答案.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、1根据立体图作出三面投影，大小量取Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.5,6根据A点的坐标，作出三面投影和立体图a’’XYZAVHWaa’Oaa’a’’根据长对正，宽相等，高平齐ZXYY长宽高Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011Aspos

2、ePtyLtd.aba’b’c’c’’d’d’’a’’b’’cdEvaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.9作出直线AB的侧面投影，画立体图’XYZOVWHaa’bb’a’’b’’ABEvaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd

3、.10求直线AB的实长，及对两投影面的倾角α，β做法提示：求α在水平投影上作，一直角边是水平投影，另一直角边为高度差。b’aba’α实长β实长求β在正面投影上，一直角边是水正面投影，另一直角边为宽度差。宽度差高度差Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.11已知直线AB的实际长度为55mm,求水平投影ab’a’高度差55mm水平投影b水平投影Evaluationonly.Crea

4、tedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.12判别下列各直线的空间位置，并注明反映实际长度的投影a’bb’acdc’d’fee’f’gg’h’(h)直线ABCDEFGH空间位置水平线侧平线正平线铅垂线实长投影abc’’d’’e’f’g’h’Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011As

5、posePtyLtd.13判别CDE三点是否在直线AB上e’a’bb’acc’dd’eC点不在；D点不在；E点在。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.14应用定比性补出直线AB上K点的水平投影，并完成侧面投影aba’b’k’ka’’k’’b’’Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0

6、.0.Copyright2004-2011AsposePtyLtd.15求直线AB与投影面的交点n’baa’b’mm’nn’aba’b’nEvaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.16判别直线AB与CD，IJ与KL，MN与OP，QR与ST的相对位置AB与CD交错，IJ与KL相交，MN与OP相交，QR与ST交错abcda’c’b’d’j’ikjli’k’l’p’mnm’n’opo’E

7、valuationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.17过A点作一直线平行于H面，并与BC直线相交a’bb’cc’ad’dEvaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.18过C点作一直线与AB相交，使交点离V面为20mmd’aa’bb’cc

8、’20mmdEvaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011As