update readme.md: Addred trait_metadata part

README.md

@@ -62,12 +62,15 @@ Observatory Network (NEON).
 /individual_specimens
     IMG_<id>_specimen_<number>.png
     ...
-metadata.csv
+
+images_metadata.csv
+traits_metadata.csv
+
 README.md
 ```
 
 ### Data Fields
-**metadata.csv**:
+**images_metadata.csv**:
 - `individualImageFilePath`: Path to the individually cropped beetle image, e.g., `individual_specimens/IMG_<id>_specimen_<number>.png`, where `<id>` matches the group image and `<number>` indicates the beetle's position within that group image.
 - `groupImageFilePath`: Path to grouped beetle images. e.g., `group_images/IMG_<id>.png` where `IMG_<id>` is the image name assigned by the camera roll.
 - `individualID`: Unique identification number assigned to each individual beetle. This begins with NEON_BET.D20 to show that the unique ID corresponds to a beetle from the National Ecological Observatory Network's Domain 20, followed by six digits.
@@ -80,6 +83,24 @@ README.md
 - `ownerInstitutionCode`: NEON owner code
 - `catalogNumber`: NEON catalog number
 
+**traits_metadata.csv**:
+- `toras_path`: File path to grouped beetle specimen images. Format: `group_images/IMG_<id>.png`, where `IMG_<id>` corresponds to the unique image identifier assigned by the camera system.
+- `BeetlePosition`: Ordinal position of the individual beetle specimen within the group image (dorsal view). Specimens are numbered sequentially from top to bottom: topmost specimen = 1, subsequent specimens = 2, 3, 4, etc.
+- `BeetleID`: Unique identifier for each individual beetle specimen, derived from the combination of `Image_Filepath` and `BeetlePosition` values.
+- `coords_scalebar`: X and Y coordinate pairs defining the endpoints of the 1 cm reference scalebar, positioned in the upper or upper-left portion of each image.
+- `coords_elytra_max_length`: X and Y coordinate pairs defining the endpoints of the maximum elytral length measurement. Measured from the midpoint of the elytro-pronotal suture (junction between pronotum and elytra) to the midpoint of the elytral apex (posterior terminus of the elytra).
+- `coords_basal_pronotum_width`: X and Y coordinate pairs defining the endpoints of the basal pronotal width measurement at the elytro-pronotal junction.
+- `coords_elytra_max_width`: X and Y coordinate pairs defining the endpoints of the maximum elytral width measurement. Represents the greatest transverse distance across both elytra, measured orthogonal to the elytral length axis.
+- `px_scalebar`: Euclidean distance between coordinate endpoints of the reference scalebar (`coords_scalebar`) expressed in pixels.
+- `px_elytra_max_length`: Euclidean distance between coordinate endpoints of the maximum elytral length (`coords_elytra_max_length`) expressed in pixels.
+- `px_basal_pronotum_width`: Euclidean distance between coordinate endpoints of the basal pronotal width (`coords_basal_pronotum_width`) expressed in pixels.
+- `px_elytra_max_width`: Euclidean distance between coordinate endpoints of the maximum elytral width (`coords_elytra_max_width`) expressed in pixels.
+- `cm_scalebar`: Calibrated length of the reference scalebar in centimeters. Constant value of 1.0 cm as this represents the standard reference scale used for all measurements.
+- `cm_elytra_max_length`: Calibrated maximum elytral length in centimeters, calculated by converting pixel measurements using the scalebar calibration factor.
+- `cm_basal_pronotum_width`: Calibrated basal pronotal width in centimeters at the elytro-pronotal suture, calculated by converting pixel measurements using the scalebar calibration factor.
+- `cm_elytra_max_width`: Calibrated maximum elytral width in centimeters, representing the greatest transverse dimension across the fused elytra, calculated by converting pixel measurements using the scalebar calibration factor.
+
+
 
 ## Dataset Creation