forums.autodesk.com · web viewcreating the animation path start in autocad civil 3d. make sure...
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Creating the Animation PathStart in AutoCAD Civil 3D.Make sure that in AutoCAD Civil 3D, your model is georeferenced to the correct zone.First create two layers; one called FlightPath in a color other than white and another called FlightPathPts in a color other than white. Make the FlightPath current. Also, use the Command PTYPE since points will be drawn ( a necessary step later). Change the style to anything other than the first two shown and click OK.
Command: SPLINEDraw a spline, clockwise, around the hospital or your zone of interest but stay about 300 m away. Counter-clockwise is OK too but the setting may be opposite for the animation (i.e. angles may be – when the example is + and vice versa). The move is played in the reverse order of what you draw.
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Hit <enter> when done. Turn off the GEOMAP or If the spline becomes invisible, hover over it and it will “blink”. Select it. Now we can edit its shape with SPLINEDIT.Use E for Edit vertex
Use M for Move
Note that the first point you clicked on to draw the spline is highlighted:
If you want to move this one up, the follow the steps below. If you want to instead move another one, use the Next option by typing in N for NextType in N <Enter> until the point you want to move is activated:
Then to move the point down, type in @0,0,-# <Enter> where # is actually a distance (in metres) that you want to move the camera downwards. Example: @0,0,-30 drops the camera downwards towards the ground by 30 m. To move the camera up 30 m use @0,0,30If a point has been moved, only that point moves; the ones after and before that point stay still, SO if you want to change the next
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one too, type in N <Enter> and the use @0,0,-30 (or some other number) <Enter>.To stop the function, the letter X is used to eXit three times in a row ( X <Enter> X <Enter> X <Enter> )Now the whole spline will be moved upwards higher than the elevation of the highest building in the area which is about 260 m . We will use 400 m.Type in M for MOVE and then select the spline. Type in <Enter> to indicate no other objects will be chosen. Click the screen ANYWHERE to indicate a BASE POINT and then type in @0,0,400 <ENTER>
DRAWING the required POINTSMake the FlightPathPts the current layer.
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Change the OSNAP setting to NEAREST only:
OK
Make sure the running Object Snap mode is on with F3
To create many points in sequence, first type in MULTIPLE as a command and the POINT as the command to repeat.
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Click on the line near where you started and keep digitizing points at fairly regular intervals until you reach near the end of the spline; hit <ESCape> to stop.
Now the points have to exported to SHP or SDF format (for example). The SDF format will be used here since it creates one file and not several like a shape file.Use MAPEXPORT.Name the file FlightPath in folder than can be found later.
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On the Selection tab, limit the selection to the FlightPathPts layer;
In the Feature Class tab set the Geometry to Point
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You may want to save the AutoCAD drawing as FlightPath in case you have to go back and make modifications. Close AutoCAD.In Infraworks, activate the Storyboard:
Add a new storyboard:
Import a Camera Path
Find the FlightPath.sdf fileWait a few moments.
When appears:
changing the Expression to a positive # will move the whole camera path up higher and a minus number will move it lower.
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And
-45 is OK for what was shown above but you may wan to try other values.
Set the above to 3 seconds. This is usually OK.
Wait a few moments.
Play the movie.Add a Title and Captions as shown above if you want. Save the entire video as shown above or:
If the results are as desired, save the video in a portable format.
The Windows Media Video works well.
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