How To Transfer Roof Height Information Form Rhino To Gis

If it doesn t then you can just write a grasshopper script to randomly extrude the curves to a set range of heights to give the appearance of it being less uniform than extruding them all by.

How to transfer roof height information form rhino to gis.

Open a new rhino file file new large objects meters 3dm. Buildingfid the building s internal id number. Gis and rhino conservation in situ rhino conservation is based on security and biological management e g. Import image as plain.

This creates an x y and z field within the point shapefile. Buildings with no eave height have flat roofs. Then sub divide it 2048 or 4096 times or less if you do not have 32 gigs of ram and add a displacement to it using the height data in 32bit float normalized to 0 to 1 tiff image. Most gis building shapefiles have building heights embedded in them that you can tap into with grasshopper to automatically extrude to the correct height.

Altitude and station entrance tsv files. Emslie and brooks 1999. The roof form can be flat gable or hip. Use the built in.

Both of these issues rely on information about where rhinos are and why. Separate the two layers in rhino as you import. Roofform roof form the shape of the roof. Calculate the elevation field to equal the z field.

I m currently working on a project in argentina where i need to extract the gis data to get contour lines of our site. This method generates nurbs geometry in rhino allowing you to use features like make2d to export vector graphics. Thus there is a distinct spatial element that makes data storage presentation and analysis using gis an appropriate approach. Using rhino s patch command we will make a terrain using the altitude points.

The best way to get a gis based elevation model to rhino terrain is by exporting it to an asciigrid. I ve tried using. Eaveheight eave height the minimum height of the building. The following image shows what each roof form looks like.

We will assign the x y z values to all be read from excel. I ve been using sketchup to pull the gis data exporting it to rhino as a dwg and then using the contour command to get the contours i need. Using una s import points we will import our point data. This is accomplished with the raster to ascii tool in the conversion tools from raster toolbox as described in the digital elevation models tutorial.

This tutorial will cover some basic techniques for importing gis data into rhino using the grasshopper plugin in order to create a 3d site model with basic building masses.