User:Andrew Gray/OSD/doc

Requires:

• CREATOR
• TITLE
• OSD_NUM
• DESCRIPTION
• YEAR
• MEDIUM
• X
• Y
• SCALE
• URL
• LATDEC_CENT - centre point lat, decimal
• LONDEC_CENT - centre point lon, decimal

plus for later use:

| bbcorner1lat = LATDEC_BB1
| bbcorner1lon = LONDEC_BB1
| bbcorner2lat = LATDEC_BB2
| bbcorner2lon = LONDEC_BB2
| boundary1lat = BOULAT_1
| boundary1lon = BOULON_1
| boundary2lat = BOULAT_2
| boundary2lon = BOULON_2
| boundary3lat = BOULAT_3
| boundary3lon = BOULON_3
| boundary4lat = BOULAT_4
| boundary4lon = BOULON_4

.