Vertical grid shift transformation
Description¶
Models with spatial domain can be transformed by applying a vertical grid shift to transition between different vertical datums. This transformation is governed by two parameters:
grids
: A list of grids to be applied. The available grids are sourced from Natural Resources Canada and the US National Geospatial-Intelligence Agency.multiplier
: (Optional) Specify the multiplier to apply to the grid value in the forward transformation direction. Note that the default is -1.0 for historical reasons.
Example¶
This request to /api/conversion/upload-convert
{
"readerName": "<reader name>",
"writerName": "<writer name>",
...
"transformations": [
{
"type": "VerticalGridShiftTransformation",
"grids": [
"ca_nrc_HT2_2010v70.tif",
"us_nga_egm96_15.tif"
],
"multiplier": -1.0
}
]
}