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AGN buildings from point data

Bungo

Bungo

Messages
115
Country
australia
Can scenproc create (or have a feature enhancement to be able to create) user specified size by type, but otherwise generically sized autogen building footprints from GIS data which is a point, offset from north in degrees -90<x<+90, and a descriptive type (ie Residence, Rural Shed Large, Industrial, etc.)?

Most of Tasmania's GIS data for buidings with a side less than 25m is of this sort except in the 3 major urban centres, so to be able to connvert this to a shape file that can be tweaked and processed by scenproc would be handy.

cheers

Braedon
 
ScenProc has the
Code: 
PointToPolygon

command. There you can create your blueprint with its measurements from a point.
Then you can use the regular steps to create autogen buildings.

Hope this helps :)
 
That'll probably do it. Now I just need to work out what to do with all the buildings that have -1 as the rotation (ie I think that's their way of saying "undefined"...

Cheers and thanks

Braedon
 
Bungo said:
That'll probably do it. Now I just need to work out what to do with all the buildings that have -1 as the rotation (ie I think that's their way of saying "undefined"...

Cheers and thanks

Braedon
Click to expand...

You can maybe get the "HeadingFromNearestLine" and store it to the points as attributes before extruding
 
Bungo said:
Now I just need to work out what to do with all the buildings that have -1 as the rotation
Click to expand...

and why do you care what attribute they have after you point it in the right direction?

all you need is to point the object to the road at this point so your building is facing the street,
there is no use of other attribute with buildings at this point,

if you need to modify buildings type ratio for a given area,
use a poly and define in and out to categorize them,
or create a group that defines "undefined" or in your case "-1",
 
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Most of them are rural sheds that are nowhere near anything. For silos that won't be an issue as they are round, but the others I think I'll just have to draw rectangles the old fashioned way. At least I don't have to draw the other 80% that have something. A little trial and error will work out what the ROTATION value is referenced to, but it shouldn't be anything to out of bounds that I will need to adjust that. I should be able to draw a measure line through the -1 points and fill in the field with a correct value manually. Or if they are all near a road then they will all have the same value.

That and the area covers about 60km x 50km, so fixing logic error in alignment of buildings to nearest line feature would be prone to me overlooking a lot of them.

cheers and thanks

Braedon
 
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Hi,

If you draw them manual, do you only use the image as reference? If there is other vector data (other than roads) that are available, maybe those can be used to guess a heading.
 
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