tag:blogger.com,1999:blog-20356188.post-71789232306363982052007-01-31T10:13:00.000-07:002007-01-31T12:50:52.519-07:00<a href="http://bp3.blogger.com/_AfwvMIVMZPI/RcDPTp9jAAI/AAAAAAAAABo/55fyUQ8A_Ws/s1600-h/Final+Model+w+contours.png"><img id="BLOGGER_PHOTO_ID_5026245120733937666" style="FLOAT: right; MARGIN: 0px 0px 10px 10px; CURSOR: hand" alt="" src="http://bp3.blogger.com/_AfwvMIVMZPI/RcDPTp9jAAI/AAAAAAAAABo/55fyUQ8A_Ws/s320/Final+Model+w+contours.png" border="0" /></a>Lately, I have been getting <span class="blsp-spelling-error" id="SPELLING_ERROR_0" onclick="BLOG_clickHandler(this)">a lot</span> of calls concerning Corridor errors and contours. It seems that some users are a little fooled by how Civil 3D shows it's data. For instance in the image shown you can see that this Corridor has a slight problem with contours going all the way down to 0, even though the profile is tying into <span class="blsp-spelling-corrected" id="SPELLING_ERROR_1">existing</span> grade, yet you still end up with these contours. What you may not notice is that the <span class="blsp-spelling-error" id="SPELLING_ERROR_2" onclick="BLOG_clickHandler(this)">EG</span> profile is not being correctly shown on the Profile View. Notice in <a href="http://bp3.blogger.com/_AfwvMIVMZPI/RcDP0p9jABI/AAAAAAAAABw/0XBf5OZ96Bk/s1600-h/First+Glance.png"></a><a href="http://bp1.blogger.com/_AfwvMIVMZPI/RcDQyJ9jACI/AAAAAAAAAB4/nzZIR169nv4/s1600-h/First+Glance.png"><img id="BLOGGER_PHOTO_ID_5026246744231575586" style="FLOAT: left; MARGIN: 0px 10px 10px 0px; CURSOR: hand" alt="" src="http://bp1.blogger.com/_AfwvMIVMZPI/RcDQyJ9jACI/AAAAAAAAAB4/nzZIR169nv4/s320/First+Glance.png" border="0" /></a>the next image that at first glance it looks as if my <span class="blsp-spelling-error" id="SPELLING_ERROR_3" onclick="BLOG_clickHandler(this)">FG</span> Profile is tying into the <span class="blsp-spelling-error" id="SPELLING_ERROR_4" onclick="BLOG_clickHandler(this)">EG</span> surface. What you don't see is that this is not the true starting point. Now I do understand that a good designer would or should notice the starting station in the profile, but honestly I wouldn't be writing this if users have noticed this. The key to working with profiles is to use the <span class="blsp-spelling-error" id="SPELLING_ERROR_5" onclick="BLOG_clickHandler(this)">AutoCAD</span> command <span class="blsp-spelling-error" id="SPELLING_ERROR_6" onclick="BLOG_clickHandler(this)">Draworder</span> or DR as the shortcut. Since the <span class="blsp-spelling-error" id="SPELLING_ERROR_7" onclick="BLOG_clickHandler(this)">EG</span> surface happens to be <span class="blsp-spelling-corrected" id="SPELLING_ERROR_8">lined</span> up with the grid at elevation 116 (in this case), the grid is actually overlapping the <span class="blsp-spelling-error" id="SPELLING_ERROR_9" onclick="BLOG_clickHandler(this)">EG</span> surface. So by using the <span class="blsp-spelling-error" id="SPELLING_ERROR_10" onclick="BLOG_clickHandler(this)">draworder</span> command on the <span class="blsp-spelling-error" id="SPELLING_ERROR_11" onclick="BLOG_clickHandler(this)">EG</span> Profile you can clearly see where the <span class="blsp-spelling-error" id="SPELLING_ERROR_12" onclick="BLOG_clickHandler(this)">FG</span> profile should begin. I guess there may be a <a href="http://bp2.blogger.com/_AfwvMIVMZPI/RcDTnZ9jADI/AAAAAAAAACA/XWix4YevGJY/s1600-h/In+reality.png"><img id="BLOGGER_PHOTO_ID_5026249858082865202" style="FLOAT: right; MARGIN: 0px 0px 10px 10px; CURSOR: hand" alt="" src="http://bp2.blogger.com/_AfwvMIVMZPI/RcDTnZ9jADI/AAAAAAAAACA/XWix4YevGJY/s320/In+reality.png" border="0" /></a>case where the user needs to have the corridor not start at the beginning of the alignment. In that case the user would need to setup his Corridor properties accordingly, in this case at starting station would be 0+52.28. <div><div><div><div><div></div><div>In all, I know <span class="blsp-spelling-error" id="SPELLING_ERROR_13" onclick="BLOG_clickHandler(this)">a lot</span> of this seems pretty obvious for the advanced users but since <span class="blsp-spelling-error" id="SPELLING_ERROR_14" onclick="BLOG_clickHandler(this)">a lot</span> of users are just now starting to implement and use Civil 3D in a production <span class="blsp-spelling-corrected" id="SPELLING_ERROR_15">environment</span>, overlooking a small thing such as this can cause quite the headache. Not only with creating data but also with plotting.</div></div></div></div></div>Dominick Gallegoshttp://www.blogger.com/profile/05986694256693368424noreply@blogger.com