I have my raster image, an applicants site plan, which came in as a landscape shape bigger scale than the terrain 3D object I have then had to scale it down a bit as it was not to same scale, (architect at fault) , then I had to rotate it a good 30degrees clockwise so as to align its hedgerows etc with the map data on the terrain which was skinned with MeshPatch. I have another map for the rest of the site, it will be the same scenario for that.
I select the skin (created from MeshPatch on the lidar points), go properties>toothpaste icon (material) then select object from dropdown,
browse to the tiff, select and ok it, then with terrain still selected (video above sees deselection then reselection, not sure why), choose curly red chequer icon ( texture mapping) and choose Planar mapping.
It asks for first corner of plane ?
Q1. what is this corner, as my tiff is bigger than the terrain, architects plans have white areas beyond the mappy bit !
Is this corner where in plan view the lower left corner of the now angled tiff projected downwards meets the terrain, if so my corner misses it bigtime !
Q2. It then asks for other corner or length, is this the lower right corner of the tiff, or upper right ?
either way it misses the terrain. lower right has data panel date drawn scale etc.
Q3. Am I supposed to crop the tiff with the shape of the terrain ? How and where ?
The terrain isnt a perfect rectangle, the corners are not 90deg corners but where the lidar data points are.,** i.e ‘blunt corners.’**
Q4. What about the fact that the tiff I browse to is not at an angle and the scaled down size.
Should the tiff I browse to match exactly the scaled down and angled one in rhino ?
or is it ok that it is just the source of that tiff ?
Should I rescale the original and rotate it in photoshop to match that done in Rhino ? I would never get it the exact same amount it was scaled and rotated, certainly the latter. If it is then saved it still takes on a horizontal rectangular form, you cant save angled tiffs any other way. It gains new white areas.
What if the tiff is smaller than the terrain, does one click on the corners in top view making sure the terrain is being clicked on, by locking the tiff layer ?
To test that, I did a test with a tif smaller than the terrain, selecting lower left then upper right in top view, it mapped to the terrain, but some of the image shows under the skin and consequently some of the ‘skin’ shows above the tiff.
Q5. Why didnt it fully take to the surface ?