This one I had a while ago with Civil 3D Implementation at a Surveying firm.
We were all podding along when the AGES old issue in the form of a Surveyor, well forged in field and office, hit us with the requirement:
“We need to insert and orientate some symbols in our drawings by picking two points in the field.”
You know, pick a point: “gate”. And the second one, and when that gets imported it takes the orientation of point1 to point2 and inserts a symbol with that rotation. Fair enough. Examples? There are many: gates, utility pits, traffic control arrows etc.
I admit: It’s hard to know what the rotation angle of a gate block should be to enter it while in the field. Clockwise or otherwise…You’d need a portable sextant with you for that one. (he, search engines, here’s my blog…)
Well, now we have a solution in Civil 3D because we are able to define Markers on Figures: Vertex, Endpoint and MIDPOINT Markers. This is controlled by Figure Style and we’ll need some Blocks in the drawing file and some Marker Styles defined.
The core of this method is that a Surveyor will be starting a Figure in order to insert a Block with accurate orientation.
You will need to:
1. Create a block with a shape of a gate symbol: o><o
2. Create a Marker Style in Settings Toolspace under General->Multipurpose Styles->Marker Styles
3. Create a Figure Style under Survey->Figure Styles-> Use the created Marker Style as Midpoint Marker and set it to align with Figure
4. Define a Figure Prefix entry in the FigPref library:
when collecting this Gate feature in the field, instead of a single point, you start a new Figure and pick just the two points in the exact order that determines the Block orientation on the plan. When you import the Fieldbook, Gate symbols should look something like this:
you can change the Display state for Figure Lines, Markers or Picked Points components by editing Figure Style.
This feature could be improved by including a scale factor for the block, calculated to scale the Marker to fit exactly between the two observed points. Or, we could use dynamic blocks for Markers…
Part of our passion for Civil 3D comes from discovering those little “secrets” to meet such requirements! I wish I came accross one of those every week. So you can keep reading and I can keep breathing.
Now, that’s a piece of wishful thinking…
Until the golden sands…
I believe I owe you a few more of these.
Oh yes, and thanks to good ‘ol Frankie for his “philotrophy”… 😉