Heron components have changed for restraster work flow

Grasshopper
1

I am on Heron, but in the building of the rest of Raster, I ran into some issues because components just don’t look the same as they did 10 years ago. The surface mapping component has changed to map to surface (inputs are not the same), and I cannot tell from the videos what the full names on the components are. Second, the custom preview materials component has completely new inputs that don’t match that of the tutorial. As much as I want to use ESRI in my workflow, I am stuck as grass hopper components have changed and I cannot follow this tutorial. Any advice?

2

Hi @spprattsam

The Heron components have evolved over the years, but I think the concepts haven’t changed, so hopefully it will be straightforward to get you up to speed. The SurfaceMapping and Custom Preview Materials components are actually part of the Human add-on available in the package manager. Can you be a little more specific about your goals, so I know better how I can help?

-Brian

3

HI,

Thanks for the response. I will proceed to get human add on from package manager.

I am on the second part of this tutorial . It is similar to your video. I am not sure if you created it or not but Ive been reading it while I watch your utube video (https://www.youtube.com/watch?v=Wy3xKMjfJKw&t=3s)

I am on the downloading raster imagery section. Aside from getting the human add-on components, the other confusing part is the c-file. Am I to attach my raster image of the site to this component . this is what Ive done in urbano for shapefiles: I connected the extracted OSM shapefile (building).

In this tutorial I haven’t done anything with the C file path or the image ariel. I have these on my flash drive, though.

Your video is slightly different than the GitHub tutorial but kind of the same.

I want to get a raster image, street network, building heights, and a terrain mesh for the topography. All this is similar to SketchUp’s geolocation feature but much more editable and accurate for buildings and terrain.

So far I have the following shape files

-building footprints but have yet to find one with building floor to top

-street network - from the local county ( I have yet to pull these in)

-2 ft contours- I did a 50 x50 patch from these and that created a terrain

a raster image.

4

Hi @spprattsam ,

I would also get Heron from the package manager. I haven’t updated anything on food4rhino for quite some time. Also, I am not the author of the tutorial you are following, but I haven’t documented Heron well at all, so I am thankful to those who have filled this void.

To download raster imagery from a REST service with the RESTRaster component you will need to specify a location to save the image. That is what the “C:\temp\” folder location is, a valid folder location the user specifies to which the component downloads the image from the service. If you are instead trying to import a georeferenced raster image (ie geotiff) you already have, you can use the ImportRaster component.

If you zip all the data you have and post a link to it here (or DM me a link), I can post a GH definition showing you how to bring them all in.

-Brian