marios_geo
(Marios Karaoulis)
1
Hi,
I am trrying to add a geotiff image to paraview. I read from other replies, but I still don’t get how to do it.
I have a VTK file that looks like this
vtk DataFile Version 3.0
BaseMap
ASCII
DATASET POLYDATA
POINTS 4 float
-804.52 51976.88 0.00 -804.52 7432.30 0.00 62262.81 7432.30 0.00 62262.81 51976.88 0.00
POLYGONS 1 5
4 1 2 3 0
This polygon, defines the area of the geotiff. I load the tiff image, but I can’t find how to embed that image to the plane.
Any advise?
marios_geo
(Marios Karaoulis)
2
One follow up.
I plot the tiff. I know from the tiff (from gdal)
x_res, y_res, ulx (lower x coordinate) and uly (lower y coordinate).
Thus, in the properties of the iamge, I use as scale the x_scale=x_res and y_scale=y_res (z_scale=1)
And as origin x_origin=ulx/(1-xres) and y_origin=uly(1-yres).
This aligns the image perfectly, but I do not understand the math and why it is working 