用cad就行了
你画一个长5.6厘米,宽3厘米的长方形,这就是1:500的篮球场了。这个比例太小了,推荐1:100的比例尺。
推荐这个:http://image.baidu.com/i?ct=503316480&z=3&tn=baiduimagedetail&ipn=d&word=%E7%AF%AE%E7%90%83%E5%9C%BA%20%E5%B9%B3%E9%9D%A2%E5%9B%BE&step_word=&ie=utf-8&in=13982&cl=2&lm=-1&st=-1&pn=4&rn=1&di=147125989232&ln=1976&fr=&&fmq=1395294383880_R&ic=0&s=&se=1&sme=0&tab=&width=0&height=0&face=0&is=&istype=2&ist=&jit=&objurl=http%3A%2F%2Fhiphotos.baidu.com%2Flx123mutouren%2Fpic%2Fitem%2Fcb98bccfa3cc7cd9a70e566c3901213fb80e9129.jpg#pn4&-1&di147125989232&objURLhttp%3A%2F%2Fhiphotos.baidu.com%2Flx123mutouren%2Fpic%2Fitem%2Fcb98bccfa3cc7cd9a70e566c3901213fb80e9129.jpg&fromURLippr_z2C%24qAzdH3FAzdH3Fit_z%26e3Bkwt17_z%26e3Bv54AzdH3Fsx8dn47p576jgAzdH3Ftpj4AzdH3F1d1vcbb0m09bjauj18ubv1wv&W1170&H827&T12077&S66&TPjpg