In order to generate volumes, we are assuming that three files similar to this ones exist:

PRIM.TA2 (Primary TA2 Data)
SEC.TA2 (Secondary TA2 Data)
AREA.PLY (Clip Polygon )

To compute volumes in batch mode requires a few additional steps than in graphics mode.

STEP1. BUILD PRIMARY TTM

gwndtm 1 bldttm1.cmd

bldttm1.cmd

• PRIM.TA2
• PRIM.TA2 (Optional, use only if breaklines present in TA2 file)
• (Blank)
• 25% (Use 10% if data is regular)
• PRIM.TTM

STEP2. CLIP PRIMARY TTM

gwndtm 7 clpttm1.cmd

clpttm1.cmd

• 1 (Remove outside of poly)
• PRIM.TTM
• AREA.PLY
• PRIMCLP.TTM

STEP3. BUILD SECONDARY TTM

gwndtm 1 bldttm2.cmd

bldttm2.cmd

• SEC.TA2
• SEC.TA2 (Optional, use only if breaklines recent)
• (Blank)
• 25% (Use 10% if done regular)
• SEC.TTM

STEP4. CLIP SECONDARY TTM

gwndtm 7 clpttm2.cmd

clpttm2.cmd

• 1 (Remove outsite of poly)
• SEC.TTM
• AREA.PLY
• SECCLP.TTM

STEP5. CREATE TA2 OF DIFFERENCE BETWEEN SURFACES

gwndtm 16 isoprj.cmd

isoprj.cmd

• PRIMCLP.TTM
• SECCLP.TTM
• ISOPACH.TA2

STEP6. BUILD TTM USING ISOPACH TA2

gwndtm 1 isottm.cmd

isottm.cmd

• ISOPACH.TA2
• (Blank if no brealines)
• (Blank) no poply
• 25%
• ISOPACH.TTM

STEP7. CLIP ISOPACH TTM

gwndtm 7 isoclp.cmd

isoclp.cmd

• 1
• ISOPACH.TTM
• AREA.PLY
• ISOCLP.TTM

STEP8. COMPUTE VOLUMES

gwndtm 17 isovol.cmd

isovol.cmd

• PRIM.TTM (Reporting Porposes only)
• SEC.TTM (Reporting Porposes only)
• AREA.PLY
• ISOCLP.TTM
• ISOVOL.RPT
• 3