Simple script to assign metadata values to TMA cores according to row in QuPath

QuPath_Assign_TMA_core_metadata_by_row.groovy

/**
 * Simple script to assign metadata values to TMA cores according to row.
 *
 * @author Pete Bankhead
 */


import qupath.lib.scripting.QP


// Define the metadata values required
def metadataKey = "Region"
def rowValues = [
        "Center",
        "Center",
        "Center",
        "Margin",
        "Margin",
        "Margin"
]


// Get the grid & dimensions
def grid = QP.getCurrentHierarchy().getTMAGrid()
int h = grid.getGridHeight()
int w = grid.getGridWidth()

// Loop through entries
for (row in 0..h-1) {
    if (row >= rowValues.size())
        break
    for (col in 0..w-1) {
        def core = grid.getTMACore(row, col)
        core.putMetadataValue(metadataKey, rowValues[row])
    }
}

// Fire update
QP.fireHierarchyUpdate()