User's Guide

MTPZIP

Combine two merged tie point (MTP) files

Function:

Combines two merged tie point (MTP) files from different sources.

Parameters:

INMT

Input merged tie point files. The two merged tie point files to be combined. The header record from the first input file will be used for the output header record.

OUTMT

Output merged tie point file. The output merged tie point file containing the data records from the input files.

REFSIZE(64 64)

Reference size. The desired sub-image width and height.

SRCHOFF(16 16)

Search offsets. The desired horizontal and vertical search offsets.

Examples:

1. LAS> inmt=("tm034032.reftr","tm034032.mtpgr") outmt=new

   The input files TM034032.REFTR;MTP TM034032.MTPGR;MTP are opened. The header record from TM034032.REFT;MTP is used to create the NEW;MTP header record. The data records are then read and updated as specified by REFSIZE and SRCHOFF.

Description/Algorithm:

MTPZIP is used to combine two merged tie point (MTP) files from different sources. The input MTP files are opened. The header from the first MTP is used to create the output MTP header. Each data record from the first input file is then read. The sub-image width and height and the horizontal and vertical search offsets are updated as specified by REFSIZE and SRCHOFF and written to the output file. The same steps are then performed on the second input file. All files are then closed and processing completes.

Nonfatal Error Messages:

None.

Fatal Error Message:

1. [mtpzip-fatal] Fatal error encountered

   The error message that is displayed immediately preceding this message is the specific error that was encountered. Processing is terminated.

User Note:

1. Related routines are MTPGRID, TPL2MTP, and EDITTIE.